8359972: Problem list TestStaticCallStub until JDK-8359963 is fixed

Reviewed-by: mchevalier, chagedorn

.jcheck/conf

@@ -1,7 +1,7 @@
 [general]
 project=jdk
 jbs=JDK
-version=25
+version=26
 
 [checks]
 error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace,problemlists,copyright

make/autoconf/configure

@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (c) 2012, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2012, 2025, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -366,7 +366,7 @@ EOT
 
     # Print additional help, e.g. a list of toolchains and JVM features.
     # This must be done by the autoconf script.
-    ( CONFIGURE_PRINT_ADDITIONAL_HELP=true . $generated_script PRINTF=printf )
+    ( CONFIGURE_PRINT_ADDITIONAL_HELP=true . $generated_script PRINTF=printf ECHO=echo )
 
     cat <<EOT
 

make/autoconf/lib-tests.m4

@@ -28,7 +28,7 @@
 ################################################################################
 
 # Minimum supported versions
-JTREG_MINIMUM_VERSION=7.5.1
+JTREG_MINIMUM_VERSION=7.5.2
 GTEST_MINIMUM_VERSION=1.14.0
 
 ################################################################################

make/conf/github-actions.conf

@@ -26,7 +26,7 @@
 # Versions and download locations for dependencies used by GitHub Actions (GHA)
 
 GTEST_VERSION=1.14.0
-JTREG_VERSION=7.5.1+1
+JTREG_VERSION=7.5.2+1
 
 LINUX_X64_BOOT_JDK_EXT=tar.gz
 LINUX_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk24/1f9ff9062db4449d8ca828c504ffae90/36/GPL/openjdk-24_linux-x64_bin.tar.gz

make/conf/jib-profiles.js

@@ -1174,9 +1174,9 @@ var getJibProfilesDependencies = function (input, common) {
         jtreg: {
             server: "jpg",
             product: "jtreg",
-            version: "7.5.1",
+            version: "7.5.2",
             build_number: "1",
-            file: "bundles/jtreg-7.5.1+1.zip",
+            file: "bundles/jtreg-7.5.2+1.zip",
             environment_name: "JT_HOME",
             environment_path: input.get("jtreg", "home_path") + "/bin",
             configure_args: "--with-jtreg=" + input.get("jtreg", "home_path"),
@@ -1192,8 +1192,8 @@ var getJibProfilesDependencies = function (input, common) {
             server: "jpg",
             product: "jcov",
             version: "3.0",
-            build_number: "1",
-            file: "bundles/jcov-3.0+1.zip",
+            build_number: "3",
+            file: "bundles/jcov-3.0+3.zip",
             environment_name: "JCOV_HOME",
         },
 

make/conf/version-numbers.conf

@@ -26,17 +26,17 @@
 # Default version, product, and vendor information to use,
 # unless overridden by configure
 
-DEFAULT_VERSION_FEATURE=25
+DEFAULT_VERSION_FEATURE=26
 DEFAULT_VERSION_INTERIM=0
 DEFAULT_VERSION_UPDATE=0
 DEFAULT_VERSION_PATCH=0
 DEFAULT_VERSION_EXTRA1=0
 DEFAULT_VERSION_EXTRA2=0
 DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2025-09-16
-DEFAULT_VERSION_CLASSFILE_MAJOR=69  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
+DEFAULT_VERSION_DATE=2026-03-17
+DEFAULT_VERSION_CLASSFILE_MAJOR=70  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
 DEFAULT_VERSION_CLASSFILE_MINOR=0
 DEFAULT_VERSION_DOCS_API_SINCE=11
-DEFAULT_ACCEPTABLE_BOOT_VERSIONS="24 25"
-DEFAULT_JDK_SOURCE_TARGET_VERSION=25
+DEFAULT_ACCEPTABLE_BOOT_VERSIONS="24 25 26"
+DEFAULT_JDK_SOURCE_TARGET_VERSION=26
 DEFAULT_PROMOTED_VERSION_PRE=ea

make/jdk/src/classes/build/tools/cldrconverter/Bundle.java

@@ -542,10 +542,10 @@ class Bundle {
                     if (pattern != null) {
                         // Perform date-time format pattern conversion which is
                         // applicable to both SimpleDateFormat and j.t.f.DateTimeFormatter.
-                        String transPattern = translateDateFormatLetters(calendarType, pattern, this::convertDateTimePatternLetter);
+                        String transPattern = translateDateFormatLetters(calendarType, key, pattern, this::convertDateTimePatternLetter);
                         dateTimePatterns.add(i, transPattern);
                         // Additionally, perform SDF specific date-time format pattern conversion
-                        sdfPatterns.add(i, translateDateFormatLetters(calendarType, transPattern, this::convertSDFLetter));
+                        sdfPatterns.add(i, translateDateFormatLetters(calendarType, key, transPattern, this::convertSDFLetter));
                     } else {
                         dateTimePatterns.add(i, null);
                         sdfPatterns.add(i, null);
@@ -568,7 +568,7 @@ class Bundle {
         }
     }
 
-    private String translateDateFormatLetters(CalendarType calendarType, String cldrFormat, ConvertDateTimeLetters converter) {
+    private String translateDateFormatLetters(CalendarType calendarType, String patternKey, String cldrFormat, ConvertDateTimeLetters converter) {
         String pattern = cldrFormat;
         int length = pattern.length();
         boolean inQuote = false;
@@ -587,7 +587,7 @@ class Bundle {
                     if (nextc == '\'') {
                         i++;
                         if (count != 0) {
-                            converter.convert(calendarType, lastLetter, count, jrePattern);
+                            converter.convert(calendarType, patternKey, lastLetter, count, jrePattern);
                             lastLetter = 0;
                             count = 0;
                         }
@@ -597,7 +597,7 @@ class Bundle {
                 }
                 if (!inQuote) {
                     if (count != 0) {
-                        converter.convert(calendarType, lastLetter, count, jrePattern);
+                        converter.convert(calendarType, patternKey, lastLetter, count, jrePattern);
                         lastLetter = 0;
                         count = 0;
                     }
@@ -614,7 +614,7 @@ class Bundle {
             }
             if (!(c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z')) {
                 if (count != 0) {
-                    converter.convert(calendarType, lastLetter, count, jrePattern);
+                    converter.convert(calendarType, patternKey, lastLetter, count, jrePattern);
                     lastLetter = 0;
                     count = 0;
                 }
@@ -627,7 +627,7 @@ class Bundle {
                 count++;
                 continue;
             }
-            converter.convert(calendarType, lastLetter, count, jrePattern);
+            converter.convert(calendarType, patternKey, lastLetter, count, jrePattern);
             lastLetter = c;
             count = 1;
         }
@@ -637,7 +637,7 @@ class Bundle {
         }
 
         if (count != 0) {
-            converter.convert(calendarType, lastLetter, count, jrePattern);
+            converter.convert(calendarType, patternKey, lastLetter, count, jrePattern);
         }
         if (cldrFormat.contentEquals(jrePattern)) {
             return cldrFormat;
@@ -661,7 +661,7 @@ class Bundle {
      * on the support given by the SimpleDateFormat and the j.t.f.DateTimeFormatter
      * for date-time formatting.
      */
-    private void convertDateTimePatternLetter(CalendarType calendarType, char cldrLetter, int count, StringBuilder sb) {
+    private void convertDateTimePatternLetter(CalendarType calendarType, String patternKey, char cldrLetter, int count, StringBuilder sb) {
         switch (cldrLetter) {
             case 'u':
             case 'U':
@@ -683,7 +683,7 @@ class Bundle {
      * Perform a conversion of CLDR date-time format pattern letter which is
      * specific to the SimpleDateFormat.
      */
-    private void convertSDFLetter(CalendarType calendarType, char cldrLetter, int count, StringBuilder sb) {
+    private void convertSDFLetter(CalendarType calendarType, String patternKey, char cldrLetter, int count, StringBuilder sb) {
         switch (cldrLetter) {
             case 'G':
                 if (calendarType != CalendarType.GREGORIAN) {
@@ -722,6 +722,17 @@ class Bundle {
                 appendN('z', count, sb);
                 break;
 
+            case 'y':
+                // If the style is FULL/LONG for a Japanese Calendar, make the
+                // count == 4 for Gan-nen
+                if (calendarType == CalendarType.JAPANESE &&
+                        (patternKey.contains("full-") ||
+                         patternKey.contains("long-"))) {
+                    count = 4;
+                }
+                appendN(cldrLetter, count, sb);
+                break;
+
             case 'Z':
                 if (count == 4 || count == 5) {
                     sb.append("XXX");
@@ -767,6 +778,7 @@ class Bundle {
             .collect(Collectors.toMap(
                 e -> calendarPrefix + e.getKey(),
                 e -> translateDateFormatLetters(calendarType,
+                        e.getKey(),
                         (String)e.getValue(),
                         this::convertDateTimePatternLetter)
             ))
@@ -775,7 +787,7 @@ class Bundle {
 
     @FunctionalInterface
     private interface ConvertDateTimeLetters {
-        void convert(CalendarType calendarType, char cldrLetter, int count, StringBuilder sb);
+        void convert(CalendarType calendarType, String patternKey, char cldrLetter, int count, StringBuilder sb);
     }
 
     /**

make/modules/java.base/Gensrc.gmk

@@ -46,6 +46,8 @@ CLDR_GEN_DONE := $(GENSRC_DIR)/_cldr-gensrc.marker
 TZ_DATA_DIR := $(MODULE_SRC)/share/data/tzdata
 ZONENAME_TEMPLATE := $(MODULE_SRC)/share/classes/java/time/format/ZoneName.java.template
 
+# The `-utf8` option is used even for US English, as some names
+# may contain non-ASCII characters, such as “Türkiye”.
 $(CLDR_GEN_DONE): $(wildcard $(CLDR_DATA_DIR)/dtd/*.dtd) \
     $(wildcard $(CLDR_DATA_DIR)/main/en*.xml) \
     $(wildcard $(CLDR_DATA_DIR)/supplemental/*.xml) \
@@ -61,7 +63,8 @@ $(CLDR_GEN_DONE): $(wildcard $(CLDR_DATA_DIR)/dtd/*.dtd) \
 	    -basemodule \
 	    -year $(COPYRIGHT_YEAR) \
 	    -zntempfile $(ZONENAME_TEMPLATE) \
-	    -tzdatadir $(TZ_DATA_DIR))
+	    -tzdatadir $(TZ_DATA_DIR) \
+	    -utf8)
 	$(TOUCH) $@
 
 TARGETS += $(CLDR_GEN_DONE)

make/modules/jdk.localedata/Gensrc.gmk

@@ -45,7 +45,8 @@ $(CLDR_GEN_DONE): $(wildcard $(CLDR_DATA_DIR)/dtd/*.dtd) \
 	    -baselocales "en-US" \
 	    -year $(COPYRIGHT_YEAR) \
 	    -o $(GENSRC_DIR) \
-	    -tzdatadir $(TZ_DATA_DIR))
+	    -tzdatadir $(TZ_DATA_DIR) \
+	    -utf8)
 	$(TOUCH) $@
 
 TARGETS += $(CLDR_GEN_DONE)

make/test/JtregNativeJdk.gmk

@@ -62,7 +62,7 @@ BUILD_JDK_JTREG_LIBRARIES_JDK_LIBS_libGetXSpace := java.base:libjava
 ifeq ($(call isTargetOs, windows), true)
   BUILD_JDK_JTREG_EXCLUDE += libDirectIO.c libInheritedChannel.c \
       libExplicitAttach.c libImplicitAttach.c \
-      exelauncher.c
+      exelauncher.c libFDLeaker.c exeFDLeakTester.c
 
   BUILD_JDK_JTREG_EXECUTABLES_LIBS_exeNullCallerTest := $(LIBCXX)
   BUILD_JDK_JTREG_EXECUTABLES_LIBS_exerevokeall := advapi32.lib

src/demo/share/jfc/Stylepad/HelloWorld.java

@@ -187,22 +187,18 @@ public class HelloWorld {
             new Run("none", "Hello from Cupertino")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u53F0\u5317\u554F\u5019\u60A8\u0021")
+            new Run("none", "台北問候您!")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u0391\u03B8\u03B7\u03BD\u03B1\u03B9\u0020" // Greek
-            + "\u03B1\u03C3\u03C0\u03B1\u03B6\u03BF\u03BD"
-            + "\u03C4\u03B1\u03B9\u0020\u03C5\u03BC\u03B1"
-            + "\u03C2\u0021")
+            new Run("none", "Αθηναι ασπαζονται υμας!") // Greek
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u6771\u4eac\u304b\u3089\u4eca\u65e5\u306f")
+            new Run("none", "東京から今日は")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u05e9\u05dc\u05d5\u05dd \u05de\u05d9\u05e8\u05d5"
-            + "\u05e9\u05dc\u05d9\u05dd")
+            new Run("none", "שלום מירושלים")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u0633\u0644\u0627\u0645")
+            new Run("none", "سلام")
         }), };
 }

src/hotspot/cpu/aarch64/aarch64.ad

@@ -1888,7 +1888,7 @@ void MachEpilogNode::emit(C2_MacroAssembler *masm, PhaseRegAlloc *ra_) const {
       code_stub = &stub->entry();
     }
     __ relocate(relocInfo::poll_return_type);
-    __ safepoint_poll(*code_stub, true /* at_return */, false /* acquire */, true /* in_nmethod */);
+    __ safepoint_poll(*code_stub, true /* at_return */, true /* in_nmethod */);
   }
 }
 
@@ -3921,6 +3921,10 @@ ins_attrib ins_alignment(4);    // Required alignment attribute (must
                                 // compute_padding() function must be
                                 // provided for the instruction
 
+// Whether this node is expanded during code emission into a sequence of
+// instructions and the first instruction can perform an implicit null check.
+ins_attrib ins_is_late_expanded_null_check_candidate(false);
+
 //----------OPERANDS-----------------------------------------------------------
 // Operand definitions must precede instruction definitions for correct parsing
 // in the ADLC because operands constitute user defined types which are used in

src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp

@@ -483,7 +483,7 @@ void LIR_Assembler::return_op(LIR_Opr result, C1SafepointPollStub* code_stub) {
 
   code_stub->set_safepoint_offset(__ offset());
   __ relocate(relocInfo::poll_return_type);
-  __ safepoint_poll(*code_stub->entry(), true /* at_return */, false /* acquire */, true /* in_nmethod */);
+  __ safepoint_poll(*code_stub->entry(), true /* at_return */, true /* in_nmethod */);
   __ ret(lr);
 }
 

src/hotspot/cpu/aarch64/c1_globals_aarch64.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -43,15 +43,15 @@ define_pd_global(intx, CompileThreshold,             1500 );
 
 define_pd_global(intx, OnStackReplacePercentage,     933  );
 define_pd_global(intx, NewSizeThreadIncrease,        4*K  );
-define_pd_global(intx, InitialCodeCacheSize,         160*K);
-define_pd_global(intx, ReservedCodeCacheSize,        32*M );
-define_pd_global(intx, NonProfiledCodeHeapSize,      13*M );
-define_pd_global(intx, ProfiledCodeHeapSize,         14*M );
-define_pd_global(intx, NonNMethodCodeHeapSize,       5*M  );
+define_pd_global(size_t, InitialCodeCacheSize,       160*K);
+define_pd_global(size_t, ReservedCodeCacheSize,      32*M );
+define_pd_global(size_t, NonProfiledCodeHeapSize,    13*M );
+define_pd_global(size_t, ProfiledCodeHeapSize,       14*M );
+define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M  );
 define_pd_global(bool, ProfileInterpreter,           false);
-define_pd_global(intx, CodeCacheExpansionSize,       32*K );
-define_pd_global(uintx, CodeCacheMinBlockLength,     1);
-define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
+define_pd_global(size_t, CodeCacheExpansionSize,     32*K );
+define_pd_global(size_t, CodeCacheMinBlockLength,    1);
+define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 define_pd_global(bool, NeverActAsServerClassMachine, true );
 define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
 define_pd_global(bool, CICompileOSR,                 true );

src/hotspot/cpu/aarch64/c2_globals_aarch64.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -51,8 +51,8 @@ define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
 define_pd_global(intx, LoopUnrollLimit,              60);
 define_pd_global(intx, LoopPercentProfileLimit,      10);
 // InitialCodeCacheSize derived from specjbb2000 run.
-define_pd_global(intx, InitialCodeCacheSize,         2496*K); // Integral multiple of CodeCacheExpansionSize
-define_pd_global(intx, CodeCacheExpansionSize,       64*K);
+define_pd_global(size_t, InitialCodeCacheSize,       2496*K); // Integral multiple of CodeCacheExpansionSize
+define_pd_global(size_t, CodeCacheExpansionSize,     64*K);
 
 // Ergonomics related flags
 define_pd_global(uint64_t,MaxRAM,                    128ULL*G);
@@ -69,12 +69,12 @@ define_pd_global(bool, SuperWordLoopUnrollAnalysis,  true);
 define_pd_global(uint, SuperWordStoreToLoadForwardingFailureDetection, 8);
 define_pd_global(bool, IdealizeClearArrayNode,       true);
 
-define_pd_global(intx, ReservedCodeCacheSize,        48*M);
-define_pd_global(intx, NonProfiledCodeHeapSize,      21*M);
-define_pd_global(intx, ProfiledCodeHeapSize,         22*M);
-define_pd_global(intx, NonNMethodCodeHeapSize,       5*M );
-define_pd_global(uintx, CodeCacheMinBlockLength,     6);
-define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
+define_pd_global(size_t, ReservedCodeCacheSize,      48*M);
+define_pd_global(size_t, NonProfiledCodeHeapSize,    21*M);
+define_pd_global(size_t, ProfiledCodeHeapSize,       22*M);
+define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M );
+define_pd_global(size_t, CodeCacheMinBlockLength,    6);
+define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 
 // Ergonomics related flags
 define_pd_global(bool, NeverActAsServerClassMachine, false);

src/hotspot/cpu/aarch64/compiledIC_aarch64.cpp

@@ -90,13 +90,15 @@ void CompiledDirectCall::set_to_interpreted(const methodHandle& callee, address
     = nativeMovConstReg_at(stub + NativeInstruction::instruction_size);
 
 #ifdef ASSERT
-  NativeGeneralJump* jump = nativeGeneralJump_at(method_holder->next_instruction_address());
+  NativeJump* jump = MacroAssembler::codestub_branch_needs_far_jump()
+                         ? nativeGeneralJump_at(method_holder->next_instruction_address())
+                         : nativeJump_at(method_holder->next_instruction_address());
   verify_mt_safe(callee, entry, method_holder, jump);
 #endif
 
   // Update stub.
   method_holder->set_data((intptr_t)callee());
-  NativeGeneralJump::insert_unconditional(method_holder->next_instruction_address(), entry);
+  MacroAssembler::pd_patch_instruction(method_holder->next_instruction_address(), entry);
   ICache::invalidate_range(stub, to_interp_stub_size());
   // Update jump to call.
   set_destination_mt_safe(stub);

src/hotspot/cpu/aarch64/downcallLinker_aarch64.cpp

@@ -289,7 +289,7 @@ void DowncallLinker::StubGenerator::generate() {
 
     __ verify_sve_vector_length(tmp1);
 
-    __ safepoint_poll(L_safepoint_poll_slow_path, true /* at_return */, true /* acquire */, false /* in_nmethod */, tmp1);
+    __ safepoint_poll(L_safepoint_poll_slow_path, true /* at_return */, false /* in_nmethod */, tmp1);
 
     __ ldrw(tmp1, Address(rthread, JavaThread::suspend_flags_offset()));
     __ cbnzw(tmp1, L_safepoint_poll_slow_path);

src/hotspot/cpu/aarch64/gc/z/z_aarch64.ad

@@ -106,6 +106,13 @@ instruct zLoadP(iRegPNoSp dst, memory8 mem, rFlagsReg cr)
   match(Set dst (LoadP mem));
   predicate(UseZGC && !needs_acquiring_load(n) && n->as_Load()->barrier_data() != 0);
   effect(TEMP dst, KILL cr);
+  // The main load is a candidate to implement implicit null checks, as long as
+  // legitimize_address() does not require a preceding lea instruction to
+  // materialize the memory operand. The absence of a preceding lea instruction
+  // is guaranteed for immLoffset8 memory operands, because these do not lead to
+  // out-of-range offsets (see definition of immLoffset8). Fortunately,
+  // immLoffset8 memory operands are the most common ones in practice.
+  ins_is_late_expanded_null_check_candidate(opnd_array(1)->opcode() == INDOFFL8);
 
   ins_cost(4 * INSN_COST);
 
@@ -117,7 +124,11 @@ instruct zLoadP(iRegPNoSp dst, memory8 mem, rFlagsReg cr)
       // Fix up any out-of-range offsets.
       assert_different_registers(rscratch2, as_Register($mem$$base));
       assert_different_registers(rscratch2, $dst$$Register);
-      ref_addr = __ legitimize_address(ref_addr, 8, rscratch2);
+      int size = 8;
+      assert(!this->is_late_expanded_null_check_candidate() ||
+             !MacroAssembler::legitimize_address_requires_lea(ref_addr, size),
+             "an instruction that can be used for implicit null checking should emit the candidate memory access first");
+      ref_addr = __ legitimize_address(ref_addr, size, rscratch2);
     }
     __ ldr($dst$$Register, ref_addr);
     z_load_barrier(masm, this, ref_addr, $dst$$Register, rscratch1);

src/hotspot/cpu/aarch64/globals_aarch64.hpp

@@ -38,7 +38,7 @@ define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap nulls
 
 define_pd_global(bool, DelayCompilerStubsGeneration, COMPILER2_OR_JVMCI);
 
-define_pd_global(uintx, CodeCacheSegmentSize,    64);
+define_pd_global(size_t, CodeCacheSegmentSize,   64);
 define_pd_global(intx, CodeEntryAlignment,       64);
 define_pd_global(intx, OptoLoopAlignment,        16);
 

src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp

@@ -603,7 +603,7 @@ void InterpreterMacroAssembler::remove_activation(TosState state,
   // the stack, will call InterpreterRuntime::at_unwind.
   Label slow_path;
   Label fast_path;
-  safepoint_poll(slow_path, true /* at_return */, false /* acquire */, false /* in_nmethod */);
+  safepoint_poll(slow_path, true /* at_return */, false /* in_nmethod */);
   br(Assembler::AL, fast_path);
   bind(slow_path);
   push(state);

src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp

@@ -553,13 +553,8 @@ address MacroAssembler::target_addr_for_insn_or_null(address insn_addr, unsigned
   return MacroAssembler::target_addr_for_insn(insn_addr, insn);
 }
 
-void MacroAssembler::safepoint_poll(Label& slow_path, bool at_return, bool acquire, bool in_nmethod, Register tmp) {
-  if (acquire) {
-    lea(tmp, Address(rthread, JavaThread::polling_word_offset()));
-    ldar(tmp, tmp);
-  } else {
-    ldr(tmp, Address(rthread, JavaThread::polling_word_offset()));
-  }
+void MacroAssembler::safepoint_poll(Label& slow_path, bool at_return, bool in_nmethod, Register tmp) {
+  ldr(tmp, Address(rthread, JavaThread::polling_word_offset()));
   if (at_return) {
     // Note that when in_nmethod is set, the stack pointer is incremented before the poll. Therefore,
     // we may safely use the sp instead to perform the stack watermark check.
@@ -989,11 +984,19 @@ void MacroAssembler::emit_static_call_stub() {
   mov_metadata(rmethod, nullptr);
 
   // Jump to the entry point of the c2i stub.
-  movptr(rscratch1, 0);
-  br(rscratch1);
+  if (codestub_branch_needs_far_jump()) {
+    movptr(rscratch1, 0);
+    br(rscratch1);
+  } else {
+    b(pc());
+  }
 }
 
 int MacroAssembler::static_call_stub_size() {
+  if (!codestub_branch_needs_far_jump()) {
+    // isb; movk; movz; movz; b
+    return 5 * NativeInstruction::instruction_size;
+  }
   // isb; movk; movz; movz; movk; movz; movz; br
   return 8 * NativeInstruction::instruction_size;
 }

src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp

@@ -120,7 +120,7 @@ class MacroAssembler: public Assembler {
  virtual void check_and_handle_popframe(Register java_thread);
  virtual void check_and_handle_earlyret(Register java_thread);
 
-  void safepoint_poll(Label& slow_path, bool at_return, bool acquire, bool in_nmethod, Register tmp = rscratch1);
+  void safepoint_poll(Label& slow_path, bool at_return, bool in_nmethod, Register tmp = rscratch1);
   void rt_call(address dest, Register tmp = rscratch1);
 
   // Load Effective Address
@@ -129,16 +129,21 @@ class MacroAssembler: public Assembler {
     a.lea(this, r);
   }
 
+  // Whether materializing the given address for a LDR/STR requires an
+  // additional lea instruction.
+  static bool legitimize_address_requires_lea(const Address &a, int size) {
+    return a.getMode() == Address::base_plus_offset &&
+           !Address::offset_ok_for_immed(a.offset(), exact_log2(size));
+  }
+
   /* Sometimes we get misaligned loads and stores, usually from Unsafe
      accesses, and these can exceed the offset range. */
   Address legitimize_address(const Address &a, int size, Register scratch) {
-    if (a.getMode() == Address::base_plus_offset) {
-      if (! Address::offset_ok_for_immed(a.offset(), exact_log2(size))) {
-        block_comment("legitimize_address {");
-        lea(scratch, a);
-        block_comment("} legitimize_address");
-        return Address(scratch);
-      }
+    if (legitimize_address_requires_lea(a, size)) {
+      block_comment("legitimize_address {");
+      lea(scratch, a);
+      block_comment("} legitimize_address");
+      return Address(scratch);
     }
     return a;
   }

src/hotspot/cpu/aarch64/nativeInst_aarch64.cpp

@@ -386,18 +386,6 @@ void NativeJump::patch_verified_entry(address entry, address verified_entry, add
 
 void NativeGeneralJump::verify() {  }
 
-void NativeGeneralJump::insert_unconditional(address code_pos, address entry) {
-  NativeGeneralJump* n_jump = (NativeGeneralJump*)code_pos;
-
-  CodeBuffer cb(code_pos, instruction_size);
-  MacroAssembler a(&cb);
-
-  a.movptr(rscratch1, (uintptr_t)entry);
-  a.br(rscratch1);
-
-  ICache::invalidate_range(code_pos, instruction_size);
-}
-
 // MT-safe patching of a long jump instruction.
 void NativeGeneralJump::replace_mt_safe(address instr_addr, address code_buffer) {
   ShouldNotCallThis();

src/hotspot/cpu/aarch64/nativeInst_aarch64.hpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2014, 2108, Red Hat Inc. All rights reserved.
+ * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2025, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -383,7 +383,6 @@ public:
   address jump_destination() const;
   void set_jump_destination(address dest);
 
-  static void insert_unconditional(address code_pos, address entry);
   static void replace_mt_safe(address instr_addr, address code_buffer);
   static void verify();
 };

src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp

@@ -1877,7 +1877,7 @@ nmethod* SharedRuntime::generate_native_wrapper(MacroAssembler* masm,
   // Check for safepoint operation in progress and/or pending suspend requests.
   {
     // No need for acquire as Java threads always disarm themselves.
-    __ safepoint_poll(safepoint_in_progress, true /* at_return */, false /* acquire */, false /* in_nmethod */);
+    __ safepoint_poll(safepoint_in_progress, true /* at_return */, false /* in_nmethod */);
     __ ldrw(rscratch1, Address(rthread, JavaThread::suspend_flags_offset()));
     __ cbnzw(rscratch1, safepoint_in_progress);
     __ bind(safepoint_in_progress_done);

src/hotspot/cpu/aarch64/stubDeclarations_aarch64.hpp

@@ -26,6 +26,13 @@
 #ifndef CPU_AARCH64_STUBDECLARATIONS_HPP
 #define CPU_AARCH64_STUBDECLARATIONS_HPP
 
+#define STUBGEN_PREUNIVERSE_BLOBS_ARCH_DO(do_stub,                      \
+                                          do_arch_blob,                 \
+                                          do_arch_entry,                \
+                                          do_arch_entry_init)           \
+  do_arch_blob(preuniverse, 0)                                          \
+
+
 #define STUBGEN_INITIAL_BLOBS_ARCH_DO(do_stub,                          \
                                       do_arch_blob,                     \
                                       do_arch_entry,                    \

src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp

@@ -11653,6 +11653,10 @@ class StubGenerator: public StubCodeGenerator {
   };
 
   // Initialization
+  void generate_preuniverse_stubs() {
+    // preuniverse stubs are not needed for aarch64
+  }
+
   void generate_initial_stubs() {
     // Generate initial stubs and initializes the entry points
 
@@ -11898,6 +11902,9 @@ class StubGenerator: public StubCodeGenerator {
  public:
   StubGenerator(CodeBuffer* code, StubGenBlobId blob_id) : StubCodeGenerator(code, blob_id) {
     switch(blob_id) {
+    case preuniverse_id:
+      generate_preuniverse_stubs();
+      break;
     case initial_id:
       generate_initial_stubs();
       break;

src/hotspot/cpu/aarch64/templateInterpreterGenerator_aarch64.cpp

@@ -1018,7 +1018,7 @@ address TemplateInterpreterGenerator::generate_CRC32_update_entry() {
 
   Label slow_path;
   // If we need a safepoint check, generate full interpreter entry.
-  __ safepoint_poll(slow_path, false /* at_return */, false /* acquire */, false /* in_nmethod */);
+  __ safepoint_poll(slow_path, false /* at_return */, false /* in_nmethod */);
 
   // We don't generate local frame and don't align stack because
   // we call stub code and there is no safepoint on this path.
@@ -1065,7 +1065,7 @@ address TemplateInterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractI
 
   Label slow_path;
   // If we need a safepoint check, generate full interpreter entry.
-  __ safepoint_poll(slow_path, false /* at_return */, false /* acquire */, false /* in_nmethod */);
+  __ safepoint_poll(slow_path, false /* at_return */, false /* in_nmethod */);
 
   // We don't generate local frame and don't align stack because
   // we call stub code and there is no safepoint on this path.
@@ -1455,7 +1455,7 @@ address TemplateInterpreterGenerator::generate_native_entry(bool synchronized) {
     Label L, Continue;
 
     // No need for acquire as Java threads always disarm themselves.
-    __ safepoint_poll(L, true /* at_return */, false /* acquire */, false /* in_nmethod */);
+    __ safepoint_poll(L, true /* at_return */, false /* in_nmethod */);
     __ ldrw(rscratch2, Address(rthread, JavaThread::suspend_flags_offset()));
     __ cbz(rscratch2, Continue);
     __ bind(L);
@@ -1608,7 +1608,7 @@ address TemplateInterpreterGenerator::generate_native_entry(bool synchronized) {
 
   Label slow_path;
   Label fast_path;
-  __ safepoint_poll(slow_path, true /* at_return */, false /* acquire */, false /* in_nmethod */);
+  __ safepoint_poll(slow_path, true /* at_return */, false /* in_nmethod */);
   __ br(Assembler::AL, fast_path);
   __ bind(slow_path);
   __ push(dtos);

src/hotspot/cpu/arm/c1_globals_arm.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -51,7 +51,7 @@ define_pd_global(size_t, ProfiledCodeHeapSize,       14*M );
 define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M  );
 define_pd_global(bool, ProfileInterpreter,           false);
 define_pd_global(size_t, CodeCacheExpansionSize,     32*K );
-define_pd_global(uintx, CodeCacheMinBlockLength,     1);
+define_pd_global(size_t, CodeCacheMinBlockLength,    1);
 define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 define_pd_global(bool, NeverActAsServerClassMachine, true);
 define_pd_global(uint64_t, MaxRAM,                   1ULL*G);

src/hotspot/cpu/arm/c2_globals_arm.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -94,7 +94,7 @@ define_pd_global(size_t, CodeCacheExpansionSize,     32*K);
 // Ergonomics related flags
 define_pd_global(uint64_t, MaxRAM,                   4ULL*G);
 #endif
-define_pd_global(uintx, CodeCacheMinBlockLength,     6);
+define_pd_global(size_t, CodeCacheMinBlockLength,    6);
 define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 
 define_pd_global(bool,  TrapBasedRangeChecks,        false); // Not needed

src/hotspot/cpu/arm/globals_arm.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -36,9 +36,9 @@ define_pd_global(bool,  TrapBasedNullChecks,      false); // Not needed
 
 define_pd_global(bool,  DelayCompilerStubsGeneration, false); // No need - only few compiler's stubs
 
-define_pd_global(uintx, CodeCacheSegmentSize,     64);
-define_pd_global(intx,  CodeEntryAlignment,       16);
-define_pd_global(intx,  OptoLoopAlignment,        16);
+define_pd_global(size_t, CodeCacheSegmentSize,     64);
+define_pd_global(intx,   CodeEntryAlignment,       16);
+define_pd_global(intx,   OptoLoopAlignment,        16);
 
 #define DEFAULT_STACK_YELLOW_PAGES (2)
 #define DEFAULT_STACK_RED_PAGES (1)

src/hotspot/cpu/arm/stubDeclarations_arm.hpp

@@ -26,6 +26,13 @@
 #ifndef CPU_ARM_STUBDECLARATIONS_HPP
 #define CPU_ARM_STUBDECLARATIONS_HPP
 
+#define STUBGEN_PREUNIVERSE_BLOBS_ARCH_DO(do_stub,                      \
+                                          do_arch_blob,                 \
+                                          do_arch_entry,                \
+                                          do_arch_entry_init)           \
+  do_arch_blob(preuniverse, 0)                                          \
+
+
 #define STUBGEN_INITIAL_BLOBS_ARCH_DO(do_stub,                          \
                                       do_arch_blob,                     \
                                       do_arch_entry,                    \

src/hotspot/cpu/arm/stubGenerator_arm.cpp

@@ -3126,6 +3126,10 @@ class StubGenerator: public StubCodeGenerator {
   //---------------------------------------------------------------------------
   // Initialization
 
+  void generate_preuniverse_stubs() {
+    // preuniverse stubs are not needed for arm
+  }
+
   void generate_initial_stubs() {
     // Generates all stubs and initializes the entry points
 
@@ -3201,6 +3205,9 @@ class StubGenerator: public StubCodeGenerator {
  public:
   StubGenerator(CodeBuffer* code, StubGenBlobId blob_id) : StubCodeGenerator(code, blob_id) {
     switch(blob_id) {
+    case preuniverse_id:
+      generate_preuniverse_stubs();
+      break;
     case initial_id:
       generate_initial_stubs();
       break;

src/hotspot/cpu/ppc/c1_globals_ppc.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2019 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -44,17 +44,17 @@ define_pd_global(intx,     CompileThreshold,             1000);
 
 define_pd_global(intx,     OnStackReplacePercentage,     1400);
 define_pd_global(bool,     ProfileInterpreter,           false);
-define_pd_global(uintx,    ReservedCodeCacheSize,        32*M);
-define_pd_global(uintx,    NonProfiledCodeHeapSize,      13*M );
-define_pd_global(uintx,    ProfiledCodeHeapSize,         14*M );
-define_pd_global(uintx,    NonNMethodCodeHeapSize,       5*M );
-define_pd_global(uintx,    CodeCacheExpansionSize,       32*K);
-define_pd_global(uintx,    CodeCacheMinBlockLength,      1);
-define_pd_global(uintx,    CodeCacheMinimumUseSpace,     400*K);
+define_pd_global(size_t,   ReservedCodeCacheSize,        32*M);
+define_pd_global(size_t,   NonProfiledCodeHeapSize,      13*M );
+define_pd_global(size_t,   ProfiledCodeHeapSize,         14*M );
+define_pd_global(size_t,   NonNMethodCodeHeapSize,       5*M );
+define_pd_global(size_t,   CodeCacheExpansionSize,       32*K);
+define_pd_global(size_t,   CodeCacheMinBlockLength,      1);
+define_pd_global(size_t,   CodeCacheMinimumUseSpace,     400*K);
 define_pd_global(bool,     NeverActAsServerClassMachine, true);
 define_pd_global(size_t,   NewSizeThreadIncrease,        16*K);
 define_pd_global(uint64_t, MaxRAM,                       1ULL*G);
-define_pd_global(uintx,    InitialCodeCacheSize,         160*K);
+define_pd_global(size_t,   InitialCodeCacheSize,         160*K);
 #endif // !COMPILER2
 
 define_pd_global(bool,     UseTypeProfile,               false);

src/hotspot/cpu/ppc/c2_globals_ppc.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2019 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -78,17 +78,17 @@ define_pd_global(uint, SuperWordStoreToLoadForwardingFailureDetection, 16);
 define_pd_global(bool,     OptoScheduling,               false);
 define_pd_global(bool,     IdealizeClearArrayNode,       true);
 
-define_pd_global(uintx,    InitialCodeCacheSize,         2048*K); // Integral multiple of CodeCacheExpansionSize
-define_pd_global(uintx,    ReservedCodeCacheSize,        48*M);
-define_pd_global(uintx,    NonProfiledCodeHeapSize,      21*M);
-define_pd_global(uintx,    ProfiledCodeHeapSize,         22*M);
-define_pd_global(uintx,    NonNMethodCodeHeapSize,       5*M  );
-define_pd_global(uintx,    CodeCacheExpansionSize,       64*K);
+define_pd_global(size_t,   InitialCodeCacheSize,         2048*K); // Integral multiple of CodeCacheExpansionSize
+define_pd_global(size_t,   ReservedCodeCacheSize,        48*M);
+define_pd_global(size_t,   NonProfiledCodeHeapSize,      21*M);
+define_pd_global(size_t,   ProfiledCodeHeapSize,         22*M);
+define_pd_global(size_t,   NonNMethodCodeHeapSize,       5*M  );
+define_pd_global(size_t,   CodeCacheExpansionSize,       64*K);
 
 // Ergonomics related flags
 define_pd_global(uint64_t, MaxRAM,                       128ULL*G);
-define_pd_global(uintx,    CodeCacheMinBlockLength,      6);
-define_pd_global(uintx,    CodeCacheMinimumUseSpace,     400*K);
+define_pd_global(size_t,   CodeCacheMinBlockLength,      6);
+define_pd_global(size_t,   CodeCacheMinimumUseSpace,     400*K);
 
 define_pd_global(bool,     TrapBasedRangeChecks,          true);
 

src/hotspot/cpu/ppc/gc/shared/barrierSetAssembler_ppc.cpp

@@ -333,9 +333,9 @@ int SaveLiveRegisters::iterate_over_register_mask(IterationAction action, int of
       }
     } else if (vm_reg->is_ConditionRegister()) {
       // NOP. Conditions registers are covered by save_LR_CR
-    } else if (vm_reg->is_VectorSRegister()) {
+    } else if (vm_reg->is_VectorRegister()) {
       assert(SuperwordUseVSX, "or should not reach here");
-      VectorSRegister vs_reg = vm_reg->as_VectorSRegister();
+      VectorSRegister vs_reg = (vm_reg->as_VectorRegister()).to_vsr();
       if (vs_reg->encoding() >= VSR32->encoding() && vs_reg->encoding() <= VSR51->encoding()) {
         reg_save_index += (2 + (reg_save_index & 1)); // 2 slots + alignment if needed
 

src/hotspot/cpu/ppc/gc/z/z_ppc.ad

@@ -141,6 +141,7 @@ instruct zLoadP(iRegPdst dst, memoryAlg4 mem, flagsRegCR0 cr0)
 %{
   match(Set dst (LoadP mem));
   effect(TEMP_DEF dst, KILL cr0);
+  ins_is_late_expanded_null_check_candidate(true);
   ins_cost(MEMORY_REF_COST);
 
   predicate((UseZGC && n->as_Load()->barrier_data() != 0)
@@ -160,6 +161,7 @@ instruct zLoadP_acq(iRegPdst dst, memoryAlg4 mem, flagsRegCR0 cr0)
 %{
   match(Set dst (LoadP mem));
   effect(TEMP_DEF dst, KILL cr0);
+  ins_is_late_expanded_null_check_candidate(true);
   ins_cost(3 * MEMORY_REF_COST);
 
   // Predicate on instruction order is implicitly present due to the predicate of the cheaper zLoadP operation

src/hotspot/cpu/ppc/globals_ppc.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2024 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -59,10 +59,10 @@ define_pd_global(intx, StackReservedPages,    DEFAULT_STACK_RESERVED_PAGES);
 define_pd_global(bool,  VMContinuations, true);
 
 // Use large code-entry alignment.
-define_pd_global(uintx, CodeCacheSegmentSize,  128);
-define_pd_global(intx,  CodeEntryAlignment,    64);
-define_pd_global(intx,  OptoLoopAlignment,     16);
-define_pd_global(intx,  InlineSmallCode,       1500);
+define_pd_global(size_t, CodeCacheSegmentSize,  128);
+define_pd_global(intx,   CodeEntryAlignment,    64);
+define_pd_global(intx,   OptoLoopAlignment,     16);
+define_pd_global(intx,   InlineSmallCode,       1500);
 
 // Flags for template interpreter.
 define_pd_global(bool, RewriteBytecodes,      true);

src/hotspot/cpu/ppc/register_ppc.hpp

@@ -321,6 +321,7 @@ class VectorRegister {
 
   // accessors
   constexpr int encoding() const { assert(is_valid(), "invalid register"); return _encoding; }
+  inline VMReg as_VMReg() const;
 
   // testers
   constexpr bool is_valid() const { return (0 <= _encoding && _encoding < number_of_registers); }
@@ -392,7 +393,6 @@ class VectorSRegister {
 
   // accessors
   constexpr int encoding() const { assert(is_valid(), "invalid register"); return _encoding; }
-  inline VMReg as_VMReg() const;
   VectorSRegister successor() const { return VectorSRegister(encoding() + 1); }
 
   // testers
@@ -484,8 +484,8 @@ class ConcreteRegisterImpl : public AbstractRegisterImpl {
   enum {
     max_gpr = Register::number_of_registers * 2,
     max_fpr = max_gpr + FloatRegister::number_of_registers * 2,
-    max_vsr = max_fpr + VectorSRegister::number_of_registers * 4,
-    max_cnd = max_vsr + ConditionRegister::number_of_registers,
+    max_vr  = max_fpr + VectorRegister::number_of_registers * 4,
+    max_cnd = max_vr  + ConditionRegister::number_of_registers,
     max_spr = max_cnd + SpecialRegister::number_of_registers,
     // This number must be large enough to cover REG_COUNT (defined by c2) registers.
     // There is no requirement that any ordering here matches any ordering c2 gives

src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp

@@ -111,13 +111,13 @@ class RegisterSaver {
     int_reg,
     float_reg,
     special_reg,
-    vs_reg
+    vec_reg
   } RegisterType;
 
   typedef enum {
     reg_size          = 8,
     half_reg_size     = reg_size / 2,
-    vs_reg_size       = 16
+    vec_reg_size      = 16
   } RegisterConstants;
 
   typedef struct {
@@ -137,8 +137,8 @@ class RegisterSaver {
 #define RegisterSaver_LiveSpecialReg(regname) \
   { RegisterSaver::special_reg, regname->encoding(), regname->as_VMReg() }
 
-#define RegisterSaver_LiveVSReg(regname) \
-  { RegisterSaver::vs_reg,      regname->encoding(), regname->as_VMReg() }
+#define RegisterSaver_LiveVecReg(regname) \
+  { RegisterSaver::vec_reg,      regname->encoding(), regname->as_VMReg() }
 
 static const RegisterSaver::LiveRegType RegisterSaver_LiveRegs[] = {
   // Live registers which get spilled to the stack. Register
@@ -220,42 +220,42 @@ static const RegisterSaver::LiveRegType RegisterSaver_LiveRegs[] = {
   RegisterSaver_LiveIntReg(   R31 )  // must be the last register (see save/restore functions below)
 };
 
-static const RegisterSaver::LiveRegType RegisterSaver_LiveVSRegs[] = {
+static const RegisterSaver::LiveRegType RegisterSaver_LiveVecRegs[] = {
   //
-  // live vector scalar registers (optional, only these ones are used by C2):
+  // live vector registers (optional, only these ones are used by C2):
   //
-  RegisterSaver_LiveVSReg( VSR32 ),
-  RegisterSaver_LiveVSReg( VSR33 ),
-  RegisterSaver_LiveVSReg( VSR34 ),
-  RegisterSaver_LiveVSReg( VSR35 ),
-  RegisterSaver_LiveVSReg( VSR36 ),
-  RegisterSaver_LiveVSReg( VSR37 ),
-  RegisterSaver_LiveVSReg( VSR38 ),
-  RegisterSaver_LiveVSReg( VSR39 ),
-  RegisterSaver_LiveVSReg( VSR40 ),
-  RegisterSaver_LiveVSReg( VSR41 ),
-  RegisterSaver_LiveVSReg( VSR42 ),
-  RegisterSaver_LiveVSReg( VSR43 ),
-  RegisterSaver_LiveVSReg( VSR44 ),
-  RegisterSaver_LiveVSReg( VSR45 ),
-  RegisterSaver_LiveVSReg( VSR46 ),
-  RegisterSaver_LiveVSReg( VSR47 ),
-  RegisterSaver_LiveVSReg( VSR48 ),
-  RegisterSaver_LiveVSReg( VSR49 ),
-  RegisterSaver_LiveVSReg( VSR50 ),
-  RegisterSaver_LiveVSReg( VSR51 ),
-  RegisterSaver_LiveVSReg( VSR52 ),
-  RegisterSaver_LiveVSReg( VSR53 ),
-  RegisterSaver_LiveVSReg( VSR54 ),
-  RegisterSaver_LiveVSReg( VSR55 ),
-  RegisterSaver_LiveVSReg( VSR56 ),
-  RegisterSaver_LiveVSReg( VSR57 ),
-  RegisterSaver_LiveVSReg( VSR58 ),
-  RegisterSaver_LiveVSReg( VSR59 ),
-  RegisterSaver_LiveVSReg( VSR60 ),
-  RegisterSaver_LiveVSReg( VSR61 ),
-  RegisterSaver_LiveVSReg( VSR62 ),
-  RegisterSaver_LiveVSReg( VSR63 )
+  RegisterSaver_LiveVecReg( VR0 ),
+  RegisterSaver_LiveVecReg( VR1 ),
+  RegisterSaver_LiveVecReg( VR2 ),
+  RegisterSaver_LiveVecReg( VR3 ),
+  RegisterSaver_LiveVecReg( VR4 ),
+  RegisterSaver_LiveVecReg( VR5 ),
+  RegisterSaver_LiveVecReg( VR6 ),
+  RegisterSaver_LiveVecReg( VR7 ),
+  RegisterSaver_LiveVecReg( VR8 ),
+  RegisterSaver_LiveVecReg( VR9 ),
+  RegisterSaver_LiveVecReg( VR10 ),
+  RegisterSaver_LiveVecReg( VR11 ),
+  RegisterSaver_LiveVecReg( VR12 ),
+  RegisterSaver_LiveVecReg( VR13 ),
+  RegisterSaver_LiveVecReg( VR14 ),
+  RegisterSaver_LiveVecReg( VR15 ),
+  RegisterSaver_LiveVecReg( VR16 ),
+  RegisterSaver_LiveVecReg( VR17 ),
+  RegisterSaver_LiveVecReg( VR18 ),
+  RegisterSaver_LiveVecReg( VR19 ),
+  RegisterSaver_LiveVecReg( VR20 ),
+  RegisterSaver_LiveVecReg( VR21 ),
+  RegisterSaver_LiveVecReg( VR22 ),
+  RegisterSaver_LiveVecReg( VR23 ),
+  RegisterSaver_LiveVecReg( VR24 ),
+  RegisterSaver_LiveVecReg( VR25 ),
+  RegisterSaver_LiveVecReg( VR26 ),
+  RegisterSaver_LiveVecReg( VR27 ),
+  RegisterSaver_LiveVecReg( VR28 ),
+  RegisterSaver_LiveVecReg( VR29 ),
+  RegisterSaver_LiveVecReg( VR30 ),
+  RegisterSaver_LiveVecReg( VR31 )
 };
 
 
@@ -277,10 +277,10 @@ OopMap* RegisterSaver::push_frame_reg_args_and_save_live_registers(MacroAssemble
   // calculate frame size
   const int regstosave_num       = sizeof(RegisterSaver_LiveRegs) /
                                    sizeof(RegisterSaver::LiveRegType);
-  const int vsregstosave_num     = save_vectors ? (sizeof(RegisterSaver_LiveVSRegs) /
+  const int vecregstosave_num    = save_vectors ? (sizeof(RegisterSaver_LiveVecRegs) /
                                                    sizeof(RegisterSaver::LiveRegType))
                                                 : 0;
-  const int register_save_size   = regstosave_num * reg_size + vsregstosave_num * vs_reg_size;
+  const int register_save_size   = regstosave_num * reg_size + vecregstosave_num * vec_reg_size;
   const int frame_size_in_bytes  = align_up(register_save_size, frame::alignment_in_bytes)
                                    + frame::native_abi_reg_args_size;
 
@@ -298,8 +298,8 @@ OopMap* RegisterSaver::push_frame_reg_args_and_save_live_registers(MacroAssemble
 
   // Save some registers in the last (non-vector) slots of the new frame so we
   // can use them as scratch regs or to determine the return pc.
-  __ std(R31, frame_size_in_bytes -   reg_size - vsregstosave_num * vs_reg_size, R1_SP);
-  __ std(R30, frame_size_in_bytes - 2*reg_size - vsregstosave_num * vs_reg_size, R1_SP);
+  __ std(R31, frame_size_in_bytes -   reg_size - vecregstosave_num * vec_reg_size, R1_SP);
+  __ std(R30, frame_size_in_bytes - 2*reg_size - vecregstosave_num * vec_reg_size, R1_SP);
 
   // save the flags
   // Do the save_LR by hand and adjust the return pc if requested.
@@ -360,37 +360,37 @@ OopMap* RegisterSaver::push_frame_reg_args_and_save_live_registers(MacroAssemble
   // the utilized instructions (PowerArchitecturePPC64).
   assert(is_aligned(offset, StackAlignmentInBytes), "should be");
   if (PowerArchitecturePPC64 >= 10) {
-    assert(is_even(vsregstosave_num), "expectation");
-    for (int i = 0; i < vsregstosave_num; i += 2) {
-      int reg_num = RegisterSaver_LiveVSRegs[i].reg_num;
-      assert(RegisterSaver_LiveVSRegs[i + 1].reg_num == reg_num + 1, "or use other instructions!");
+    assert(is_even(vecregstosave_num), "expectation");
+    for (int i = 0; i < vecregstosave_num; i += 2) {
+      int reg_num = RegisterSaver_LiveVecRegs[i].reg_num;
+      assert(RegisterSaver_LiveVecRegs[i + 1].reg_num == reg_num + 1, "or use other instructions!");
 
-      __ stxvp(as_VectorSRegister(reg_num), offset, R1_SP);
+      __ stxvp(as_VectorRegister(reg_num).to_vsr(), offset, R1_SP);
       // Note: The contents were read in the same order (see loadV16_Power9 node in ppc.ad).
       if (generate_oop_map) {
         map->set_callee_saved(VMRegImpl::stack2reg(offset >> 2),
-                              RegisterSaver_LiveVSRegs[i LITTLE_ENDIAN_ONLY(+1) ].vmreg);
-        map->set_callee_saved(VMRegImpl::stack2reg((offset + vs_reg_size) >> 2),
-                              RegisterSaver_LiveVSRegs[i BIG_ENDIAN_ONLY(+1) ].vmreg);
+                              RegisterSaver_LiveVecRegs[i LITTLE_ENDIAN_ONLY(+1) ].vmreg);
+        map->set_callee_saved(VMRegImpl::stack2reg((offset + vec_reg_size) >> 2),
+                              RegisterSaver_LiveVecRegs[i BIG_ENDIAN_ONLY(+1) ].vmreg);
       }
-      offset += (2 * vs_reg_size);
+      offset += (2 * vec_reg_size);
     }
   } else {
-    for (int i = 0; i < vsregstosave_num; i++) {
-      int reg_num = RegisterSaver_LiveVSRegs[i].reg_num;
+    for (int i = 0; i < vecregstosave_num; i++) {
+      int reg_num = RegisterSaver_LiveVecRegs[i].reg_num;
 
       if (PowerArchitecturePPC64 >= 9) {
-        __ stxv(as_VectorSRegister(reg_num), offset, R1_SP);
+        __ stxv(as_VectorRegister(reg_num)->to_vsr(), offset, R1_SP);
       } else {
         __ li(R31, offset);
-        __ stxvd2x(as_VectorSRegister(reg_num), R31, R1_SP);
+        __ stxvd2x(as_VectorRegister(reg_num)->to_vsr(), R31, R1_SP);
       }
       // Note: The contents were read in the same order (see loadV16_Power8 / loadV16_Power9 node in ppc.ad).
       if (generate_oop_map) {
-        VMReg vsr = RegisterSaver_LiveVSRegs[i].vmreg;
+        VMReg vsr = RegisterSaver_LiveVecRegs[i].vmreg;
         map->set_callee_saved(VMRegImpl::stack2reg(offset >> 2), vsr);
       }
-      offset += vs_reg_size;
+      offset += vec_reg_size;
     }
   }
 
@@ -411,10 +411,10 @@ void RegisterSaver::restore_live_registers_and_pop_frame(MacroAssembler* masm,
                                                          bool save_vectors) {
   const int regstosave_num       = sizeof(RegisterSaver_LiveRegs) /
                                    sizeof(RegisterSaver::LiveRegType);
-  const int vsregstosave_num     = save_vectors ? (sizeof(RegisterSaver_LiveVSRegs) /
+  const int vecregstosave_num    = save_vectors ? (sizeof(RegisterSaver_LiveVecRegs) /
                                                    sizeof(RegisterSaver::LiveRegType))
                                                 : 0;
-  const int register_save_size   = regstosave_num * reg_size + vsregstosave_num * vs_reg_size;
+  const int register_save_size   = regstosave_num * reg_size + vecregstosave_num * vec_reg_size;
 
   const int register_save_offset = frame_size_in_bytes - register_save_size;
 
@@ -456,26 +456,26 @@ void RegisterSaver::restore_live_registers_and_pop_frame(MacroAssembler* masm,
 
   assert(is_aligned(offset, StackAlignmentInBytes), "should be");
   if (PowerArchitecturePPC64 >= 10) {
-    for (int i = 0; i < vsregstosave_num; i += 2) {
-      int reg_num  = RegisterSaver_LiveVSRegs[i].reg_num;
-      assert(RegisterSaver_LiveVSRegs[i + 1].reg_num == reg_num + 1, "or use other instructions!");
+    for (int i = 0; i < vecregstosave_num; i += 2) {
+      int reg_num  = RegisterSaver_LiveVecRegs[i].reg_num;
+      assert(RegisterSaver_LiveVecRegs[i + 1].reg_num == reg_num + 1, "or use other instructions!");
 
-      __ lxvp(as_VectorSRegister(reg_num), offset, R1_SP);
+      __ lxvp(as_VectorRegister(reg_num).to_vsr(), offset, R1_SP);
 
-      offset += (2 * vs_reg_size);
+      offset += (2 * vec_reg_size);
     }
   } else {
-    for (int i = 0; i < vsregstosave_num; i++) {
-      int reg_num  = RegisterSaver_LiveVSRegs[i].reg_num;
+    for (int i = 0; i < vecregstosave_num; i++) {
+      int reg_num  = RegisterSaver_LiveVecRegs[i].reg_num;
 
       if (PowerArchitecturePPC64 >= 9) {
-        __ lxv(as_VectorSRegister(reg_num), offset, R1_SP);
+        __ lxv(as_VectorRegister(reg_num).to_vsr(), offset, R1_SP);
       } else {
         __ li(R31, offset);
-        __ lxvd2x(as_VectorSRegister(reg_num), R31, R1_SP);
+        __ lxvd2x(as_VectorRegister(reg_num).to_vsr(), R31, R1_SP);
       }
 
-      offset += vs_reg_size;
+      offset += vec_reg_size;
     }
   }
 
@@ -486,7 +486,7 @@ void RegisterSaver::restore_live_registers_and_pop_frame(MacroAssembler* masm,
   __ mtlr(R31);
 
   // restore scratch register's value
-  __ ld(R31, frame_size_in_bytes - reg_size - vsregstosave_num * vs_reg_size, R1_SP);
+  __ ld(R31, frame_size_in_bytes - reg_size - vecregstosave_num * vec_reg_size, R1_SP);
 
   // pop the frame
   __ addi(R1_SP, R1_SP, frame_size_in_bytes);

src/hotspot/cpu/ppc/stubDeclarations_ppc.hpp

@@ -26,6 +26,13 @@
 #ifndef CPU_PPC_STUBDECLARATIONS_HPP
 #define CPU_PPC_STUBDECLARATIONS_HPP
 
+#define STUBGEN_PREUNIVERSE_BLOBS_ARCH_DO(do_stub,                      \
+                                          do_arch_blob,                 \
+                                          do_arch_entry,                \
+                                          do_arch_entry_init)           \
+  do_arch_blob(preuniverse, 0)                                          \
+
+
 #define STUBGEN_INITIAL_BLOBS_ARCH_DO(do_stub,                          \
                                       do_arch_blob,                     \
                                       do_arch_entry,                    \

src/hotspot/cpu/ppc/stubGenerator_ppc.cpp

@@ -4938,6 +4938,10 @@ void generate_lookup_secondary_supers_table_stub() {
   }
 
   // Initialization
+  void generate_preuniverse_stubs() {
+    // preuniverse stubs are not needed for ppc
+  }
+
   void generate_initial_stubs() {
     // Generates all stubs and initializes the entry points
 
@@ -5067,6 +5071,9 @@ void generate_lookup_secondary_supers_table_stub() {
  public:
   StubGenerator(CodeBuffer* code, StubGenBlobId blob_id) : StubCodeGenerator(code, blob_id) {
     switch(blob_id) {
+    case preuniverse_id:
+      generate_preuniverse_stubs();
+      break;
     case initial_id:
       generate_initial_stubs();
       break;

src/hotspot/cpu/ppc/vmreg_ppc.cpp

@@ -47,7 +47,7 @@ void VMRegImpl::set_regName() {
   }
 
   VectorSRegister vsreg = ::as_VectorSRegister(0);
-  for ( ; i < ConcreteRegisterImpl::max_vsr; ) {
+  for ( ; i < ConcreteRegisterImpl::max_vr; ) {
     regName[i++] = vsreg->name();
     regName[i++] = vsreg->name();
     regName[i++] = vsreg->name();

src/hotspot/cpu/ppc/vmreg_ppc.hpp

@@ -35,13 +35,13 @@ inline bool is_FloatRegister() {
          value() < ConcreteRegisterImpl::max_fpr;
 }
 
-inline bool is_VectorSRegister() {
+inline bool is_VectorRegister() {
   return value() >= ConcreteRegisterImpl::max_fpr &&
-         value() < ConcreteRegisterImpl::max_vsr;
+         value() < ConcreteRegisterImpl::max_vr;
 }
 
 inline bool is_ConditionRegister() {
-  return value() >= ConcreteRegisterImpl::max_vsr &&
+  return value() >= ConcreteRegisterImpl::max_vr &&
          value() < ConcreteRegisterImpl::max_cnd;
 }
 
@@ -60,15 +60,15 @@ inline FloatRegister as_FloatRegister() {
   return ::as_FloatRegister((value() - ConcreteRegisterImpl::max_gpr) >> 1);
 }
 
-inline VectorSRegister as_VectorSRegister() {
-  assert(is_VectorSRegister(), "must be");
-  return ::as_VectorSRegister((value() - ConcreteRegisterImpl::max_fpr) >> 2);
+inline VectorRegister as_VectorRegister() {
+  assert(is_VectorRegister(), "must be");
+  return ::as_VectorRegister((value() - ConcreteRegisterImpl::max_fpr) >> 2);
 }
 
 inline bool is_concrete() {
   assert(is_reg(), "must be");
   if (is_Register() || is_FloatRegister()) return is_even(value());
-  if (is_VectorSRegister()) {
+  if (is_VectorRegister()) {
     int base = value() - ConcreteRegisterImpl::max_fpr;
     return (base & 3) == 0;
   }

src/hotspot/cpu/ppc/vmreg_ppc.inline.hpp

@@ -40,13 +40,13 @@ inline VMReg FloatRegister::as_VMReg() const {
   return VMRegImpl::as_VMReg((encoding() << 1) + ConcreteRegisterImpl::max_gpr);
 }
 
-inline VMReg VectorSRegister::as_VMReg() const {
+inline VMReg VectorRegister::as_VMReg() const {
   // Four halves, multiply by 4.
   return VMRegImpl::as_VMReg((encoding() << 2) + ConcreteRegisterImpl::max_fpr);
 }
 
 inline VMReg ConditionRegister::as_VMReg() const {
-  return VMRegImpl::as_VMReg((encoding()) + ConcreteRegisterImpl::max_vsr);
+  return VMRegImpl::as_VMReg((encoding()) + ConcreteRegisterImpl::max_vr);
 }
 
 inline VMReg SpecialRegister::as_VMReg() const {

src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp

@@ -401,7 +401,7 @@ void LIR_Assembler::return_op(LIR_Opr result, C1SafepointPollStub* code_stub) {
 
   code_stub->set_safepoint_offset(__ offset());
   __ relocate(relocInfo::poll_return_type);
-  __ safepoint_poll(*code_stub->entry(), true /* at_return */, false /* acquire */, true /* in_nmethod */);
+  __ safepoint_poll(*code_stub->entry(), true /* at_return */, true /* in_nmethod */);
   __ ret();
 }
 

src/hotspot/cpu/riscv/c1_globals_riscv.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2020, 2022, Huawei Technologies Co., Ltd. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -43,15 +43,15 @@ define_pd_global(intx, CompileThreshold,             1500 );
 
 define_pd_global(intx, OnStackReplacePercentage,     933  );
 define_pd_global(intx, NewSizeThreadIncrease,        4*K  );
-define_pd_global(intx, InitialCodeCacheSize,         160*K);
-define_pd_global(intx, ReservedCodeCacheSize,        32*M );
-define_pd_global(intx, NonProfiledCodeHeapSize,      13*M );
-define_pd_global(intx, ProfiledCodeHeapSize,         14*M );
-define_pd_global(intx, NonNMethodCodeHeapSize,       5*M  );
+define_pd_global(size_t, InitialCodeCacheSize,       160*K);
+define_pd_global(size_t, ReservedCodeCacheSize,      32*M );
+define_pd_global(size_t, NonProfiledCodeHeapSize,    13*M );
+define_pd_global(size_t, ProfiledCodeHeapSize,       14*M );
+define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M  );
 define_pd_global(bool, ProfileInterpreter,           false);
-define_pd_global(intx, CodeCacheExpansionSize,       32*K );
-define_pd_global(uintx, CodeCacheMinBlockLength,     1);
-define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
+define_pd_global(size_t, CodeCacheExpansionSize,     32*K );
+define_pd_global(size_t, CodeCacheMinBlockLength,    1);
+define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 define_pd_global(bool, NeverActAsServerClassMachine, true );
 define_pd_global(uint64_t, MaxRAM,                  1ULL*G);
 define_pd_global(bool, CICompileOSR,                 true );

src/hotspot/cpu/riscv/c2_MacroAssembler_riscv.cpp

@@ -2170,15 +2170,13 @@ void C2_MacroAssembler::enc_cmove_cmp_fp(int cmpFlag, FloatRegister op1, FloatRe
       cmov_cmp_fp_le(op1, op2, dst, src, is_single);
       break;
     case BoolTest::ge:
-      assert(false, "Should go to BoolTest::le case");
-      ShouldNotReachHere();
+      cmov_cmp_fp_ge(op1, op2, dst, src, is_single);
       break;
     case BoolTest::lt:
       cmov_cmp_fp_lt(op1, op2, dst, src, is_single);
       break;
     case BoolTest::gt:
-      assert(false, "Should go to BoolTest::lt case");
-      ShouldNotReachHere();
+      cmov_cmp_fp_gt(op1, op2, dst, src, is_single);
       break;
     default:
       assert(false, "unsupported compare condition");

src/hotspot/cpu/riscv/c2_globals_riscv.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2020, 2022, Huawei Technologies Co., Ltd. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -51,8 +51,8 @@ define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
 define_pd_global(intx, LoopUnrollLimit,              60);
 define_pd_global(intx, LoopPercentProfileLimit,      10);
 // InitialCodeCacheSize derived from specjbb2000 run.
-define_pd_global(intx, InitialCodeCacheSize,         2496*K); // Integral multiple of CodeCacheExpansionSize
-define_pd_global(intx, CodeCacheExpansionSize,       64*K);
+define_pd_global(size_t, InitialCodeCacheSize,       2496*K); // Integral multiple of CodeCacheExpansionSize
+define_pd_global(size_t, CodeCacheExpansionSize,     64*K);
 
 // Ergonomics related flags
 define_pd_global(uint64_t,MaxRAM,                    128ULL*G);
@@ -69,12 +69,12 @@ define_pd_global(bool, SuperWordLoopUnrollAnalysis,  true);
 define_pd_global(uint, SuperWordStoreToLoadForwardingFailureDetection, 16);
 define_pd_global(bool, IdealizeClearArrayNode,       true);
 
-define_pd_global(intx, ReservedCodeCacheSize,        48*M);
-define_pd_global(intx, NonProfiledCodeHeapSize,      21*M);
-define_pd_global(intx, ProfiledCodeHeapSize,         22*M);
-define_pd_global(intx, NonNMethodCodeHeapSize,       5*M );
-define_pd_global(uintx, CodeCacheMinBlockLength,     6);
-define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
+define_pd_global(size_t, ReservedCodeCacheSize,      48*M);
+define_pd_global(size_t, NonProfiledCodeHeapSize,    21*M);
+define_pd_global(size_t, ProfiledCodeHeapSize,       22*M);
+define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M );
+define_pd_global(size_t, CodeCacheMinBlockLength,    6);
+define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 
 // Ergonomics related flags
 define_pd_global(bool, NeverActAsServerClassMachine, false);

src/hotspot/cpu/riscv/downcallLinker_riscv.cpp

@@ -287,7 +287,7 @@ void DowncallLinker::StubGenerator::generate() {
       __ membar(MacroAssembler::AnyAny);
     }
 
-    __ safepoint_poll(L_safepoint_poll_slow_path, true /* at_return */, true /* acquire */, false /* in_nmethod */);
+    __ safepoint_poll(L_safepoint_poll_slow_path, true /* at_return */, false /* in_nmethod */);
     __ lwu(t0, Address(xthread, JavaThread::suspend_flags_offset()));
     __ bnez(t0, L_safepoint_poll_slow_path);
 

src/hotspot/cpu/riscv/gc/z/z_riscv.ad

@@ -96,6 +96,7 @@ instruct zLoadP(iRegPNoSp dst, memory mem, iRegPNoSp tmp, rFlagsReg cr)
   match(Set dst (LoadP mem));
   predicate(UseZGC && n->as_Load()->barrier_data() != 0);
   effect(TEMP dst, TEMP tmp, KILL cr);
+  ins_is_late_expanded_null_check_candidate(true);
 
   ins_cost(4 * DEFAULT_COST);
 

src/hotspot/cpu/riscv/globals_riscv.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2020, 2023, Huawei Technologies Co., Ltd. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -38,7 +38,7 @@ define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap nulls
 
 define_pd_global(bool, DelayCompilerStubsGeneration, COMPILER2_OR_JVMCI);
 
-define_pd_global(uintx, CodeCacheSegmentSize,    64 COMPILER1_AND_COMPILER2_PRESENT(+64)); // Tiered compilation has large code-entry alignment.
+define_pd_global(size_t, CodeCacheSegmentSize,   64 COMPILER1_AND_COMPILER2_PRESENT(+64)); // Tiered compilation has large code-entry alignment.
 define_pd_global(intx, CodeEntryAlignment,       64);
 define_pd_global(intx, OptoLoopAlignment,        16);
 

src/hotspot/cpu/riscv/interp_masm_riscv.cpp

@@ -645,7 +645,7 @@ void InterpreterMacroAssembler::remove_activation(TosState state,
   // the stack, will call InterpreterRuntime::at_unwind.
   Label slow_path;
   Label fast_path;
-  safepoint_poll(slow_path, true /* at_return */, false /* acquire */, false /* in_nmethod */);
+  safepoint_poll(slow_path, true /* at_return */, false /* in_nmethod */);
   j(fast_path);
 
   bind(slow_path);

src/hotspot/cpu/riscv/macroAssembler_riscv.cpp

@@ -1268,12 +1268,19 @@ void MacroAssembler::cmov_gtu(Register cmp1, Register cmp2, Register dst, Regist
 }
 
 // ----------- cmove, compare float -----------
+//
+// For CmpF/D + CMoveI/L, ordered ones are quite straight and simple,
+// so, just list behaviour of unordered ones as follow.
+//
+// Set dst (CMoveI (Binary cop (CmpF/D op1 op2)) (Binary dst src))
+// (If one or both inputs to the compare are NaN, then)
+//    1. (op1 lt op2) => true  => CMove: dst = src
+//    2. (op1 le op2) => true  => CMove: dst = src
+//    3. (op1 gt op2) => false => CMove: dst = dst
+//    4. (op1 ge op2) => false => CMove: dst = dst
+//    5. (op1 eq op2) => false => CMove: dst = dst
+//    6. (op1 ne op2) => true  => CMove: dst = src
 
-// Move src to dst only if cmp1 == cmp2,
-// otherwise leave dst unchanged, including the case where one of them is NaN.
-// Clarification:
-//   java code      :  cmp1 != cmp2 ? dst : src
-//   transformed to :  CMove dst, (cmp1 eq cmp2), dst, src
 void MacroAssembler::cmov_cmp_fp_eq(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single) {
   if (UseZicond) {
     if (is_single) {
@@ -1289,7 +1296,7 @@ void MacroAssembler::cmov_cmp_fp_eq(FloatRegister cmp1, FloatRegister cmp2, Regi
   Label no_set;
   if (is_single) {
     // jump if cmp1 != cmp2, including the case of NaN
-    // not jump (i.e. move src to dst) if cmp1 == cmp2
+    // fallthrough (i.e. move src to dst) if cmp1 == cmp2
     float_bne(cmp1, cmp2, no_set);
   } else {
     double_bne(cmp1, cmp2, no_set);
@@ -1298,11 +1305,6 @@ void MacroAssembler::cmov_cmp_fp_eq(FloatRegister cmp1, FloatRegister cmp2, Regi
   bind(no_set);
 }
 
-// Keep dst unchanged only if cmp1 == cmp2,
-// otherwise move src to dst, including the case where one of them is NaN.
-// Clarification:
-//   java code      :  cmp1 == cmp2 ? dst : src
-//   transformed to :  CMove dst, (cmp1 ne cmp2), dst, src
 void MacroAssembler::cmov_cmp_fp_ne(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single) {
   if (UseZicond) {
     if (is_single) {
@@ -1318,7 +1320,7 @@ void MacroAssembler::cmov_cmp_fp_ne(FloatRegister cmp1, FloatRegister cmp2, Regi
   Label no_set;
   if (is_single) {
     // jump if cmp1 == cmp2
-    // not jump (i.e. move src to dst) if cmp1 != cmp2, including the case of NaN
+    // fallthrough (i.e. move src to dst) if cmp1 != cmp2, including the case of NaN
     float_beq(cmp1, cmp2, no_set);
   } else {
     double_beq(cmp1, cmp2, no_set);
@@ -1327,14 +1329,6 @@ void MacroAssembler::cmov_cmp_fp_ne(FloatRegister cmp1, FloatRegister cmp2, Regi
   bind(no_set);
 }
 
-// When cmp1 <= cmp2 or any of them is NaN then dst = src, otherwise, dst = dst
-// Clarification
-//   scenario 1:
-//     java code      :  cmp2 < cmp1 ? dst : src
-//     transformed to :  CMove dst, (cmp1 le cmp2), dst, src
-//   scenario 2:
-//     java code      :  cmp1 > cmp2 ? dst : src
-//     transformed to :  CMove dst, (cmp1 le cmp2), dst, src
 void MacroAssembler::cmov_cmp_fp_le(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single) {
   if (UseZicond) {
     if (is_single) {
@@ -1350,7 +1344,7 @@ void MacroAssembler::cmov_cmp_fp_le(FloatRegister cmp1, FloatRegister cmp2, Regi
   Label no_set;
   if (is_single) {
     // jump if cmp1 > cmp2
-    // not jump (i.e. move src to dst) if cmp1 <= cmp2 or either is NaN
+    // fallthrough (i.e. move src to dst) if cmp1 <= cmp2 or either is NaN
     float_bgt(cmp1, cmp2, no_set);
   } else {
     double_bgt(cmp1, cmp2, no_set);
@@ -1359,14 +1353,30 @@ void MacroAssembler::cmov_cmp_fp_le(FloatRegister cmp1, FloatRegister cmp2, Regi
   bind(no_set);
 }
 
-// When cmp1 < cmp2 or any of them is NaN then dst = src, otherwise, dst = dst
-// Clarification
-//   scenario 1:
-//     java code      :  cmp2 <= cmp1 ? dst : src
-//     transformed to :  CMove dst, (cmp1 lt cmp2), dst, src
-//   scenario 2:
-//     java code      :  cmp1 >= cmp2 ? dst : src
-//     transformed to :  CMove dst, (cmp1 lt cmp2), dst, src
+void MacroAssembler::cmov_cmp_fp_ge(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single) {
+  if (UseZicond) {
+    if (is_single) {
+      fle_s(t0, cmp2, cmp1);
+    } else {
+      fle_d(t0, cmp2, cmp1);
+    }
+    czero_nez(dst, dst, t0);
+    czero_eqz(t0 , src, t0);
+    orr(dst, dst, t0);
+    return;
+  }
+  Label no_set;
+  if (is_single) {
+    // jump if cmp1 < cmp2 or either is NaN
+    // fallthrough (i.e. move src to dst) if cmp1 >= cmp2
+    float_blt(cmp1, cmp2, no_set, false, true);
+  } else {
+    double_blt(cmp1, cmp2, no_set, false, true);
+  }
+  mv(dst, src);
+  bind(no_set);
+}
+
 void MacroAssembler::cmov_cmp_fp_lt(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single) {
   if (UseZicond) {
     if (is_single) {
@@ -1382,7 +1392,7 @@ void MacroAssembler::cmov_cmp_fp_lt(FloatRegister cmp1, FloatRegister cmp2, Regi
   Label no_set;
   if (is_single) {
     // jump if cmp1 >= cmp2
-    // not jump (i.e. move src to dst) if cmp1 < cmp2 or either is NaN
+    // fallthrough (i.e. move src to dst) if cmp1 < cmp2 or either is NaN
     float_bge(cmp1, cmp2, no_set);
   } else {
     double_bge(cmp1, cmp2, no_set);
@@ -1391,6 +1401,30 @@ void MacroAssembler::cmov_cmp_fp_lt(FloatRegister cmp1, FloatRegister cmp2, Regi
   bind(no_set);
 }
 
+void MacroAssembler::cmov_cmp_fp_gt(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single) {
+  if (UseZicond) {
+    if (is_single) {
+      flt_s(t0, cmp2, cmp1);
+    } else {
+      flt_d(t0, cmp2, cmp1);
+    }
+    czero_nez(dst, dst, t0);
+    czero_eqz(t0 , src, t0);
+    orr(dst, dst, t0);
+    return;
+  }
+  Label no_set;
+  if (is_single) {
+    // jump if cmp1 <= cmp2 or either is NaN
+    // fallthrough (i.e. move src to dst) if cmp1 > cmp2
+    float_ble(cmp1, cmp2, no_set, false, true);
+  } else {
+    double_ble(cmp1, cmp2, no_set, false, true);
+  }
+  mv(dst, src);
+  bind(no_set);
+}
+
 // Float compare branch instructions
 
 #define INSN(NAME, FLOATCMP, BRANCH)                                                                                    \
@@ -3739,11 +3773,8 @@ void MacroAssembler::check_klass_subtype(Register sub_klass,
   bind(L_failure);
 }
 
-void MacroAssembler::safepoint_poll(Label& slow_path, bool at_return, bool acquire, bool in_nmethod, Register tmp_reg) {
+void MacroAssembler::safepoint_poll(Label& slow_path, bool at_return, bool in_nmethod, Register tmp_reg) {
   ld(tmp_reg, Address(xthread, JavaThread::polling_word_offset()));
-  if (acquire) {
-    membar(MacroAssembler::LoadLoad | MacroAssembler::LoadStore);
-  }
   if (at_return) {
     bgtu(in_nmethod ? sp : fp, tmp_reg, slow_path, /* is_far */ true);
   } else {

src/hotspot/cpu/riscv/macroAssembler_riscv.hpp

@@ -44,7 +44,7 @@ class MacroAssembler: public Assembler {
 
   MacroAssembler(CodeBuffer* code) : Assembler(code) {}
 
-  void safepoint_poll(Label& slow_path, bool at_return, bool acquire, bool in_nmethod, Register tmp_reg = t0);
+  void safepoint_poll(Label& slow_path, bool at_return, bool in_nmethod, Register tmp_reg = t0);
 
   // Alignment
   int align(int modulus, int extra_offset = 0);
@@ -660,7 +660,9 @@ class MacroAssembler: public Assembler {
   void cmov_cmp_fp_eq(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single);
   void cmov_cmp_fp_ne(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single);
   void cmov_cmp_fp_le(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single);
+  void cmov_cmp_fp_ge(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single);
   void cmov_cmp_fp_lt(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single);
+  void cmov_cmp_fp_gt(FloatRegister cmp1, FloatRegister cmp2, Register dst, Register src, bool is_single);
 
  public:
   // We try to follow risc-v asm menomics.

src/hotspot/cpu/riscv/riscv.ad

@@ -1493,7 +1493,7 @@ void MachEpilogNode::emit(C2_MacroAssembler *masm, PhaseRegAlloc *ra_) const {
       code_stub = &stub->entry();
     }
     __ relocate(relocInfo::poll_return_type);
-    __ safepoint_poll(*code_stub, true /* at_return */, false /* acquire */, true /* in_nmethod */);
+    __ safepoint_poll(*code_stub, true /* at_return */, true /* in_nmethod */);
   }
 }
 
@@ -2619,6 +2619,10 @@ ins_attrib ins_alignment(4);    // Required alignment attribute (must
                                 // compute_padding() function must be
                                 // provided for the instruction
 
+// Whether this node is expanded during code emission into a sequence of
+// instructions and the first instruction can perform an implicit null check.
+ins_attrib ins_is_late_expanded_null_check_candidate(false);
+
 //----------OPERANDS-----------------------------------------------------------
 // Operand definitions must precede instruction definitions for correct parsing
 // in the ADLC because operands constitute user defined types which are used in

src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp

@@ -1777,15 +1777,7 @@ nmethod* SharedRuntime::generate_native_wrapper(MacroAssembler* masm,
 
   // check for safepoint operation in progress and/or pending suspend requests
   {
-    // We need an acquire here to ensure that any subsequent load of the
-    // global SafepointSynchronize::_state flag is ordered after this load
-    // of the thread-local polling word. We don't want this poll to
-    // return false (i.e. not safepointing) and a later poll of the global
-    // SafepointSynchronize::_state spuriously to return true.
-    // This is to avoid a race when we're in a native->Java transition
-    // racing the code which wakes up from a safepoint.
-
-    __ safepoint_poll(safepoint_in_progress, true /* at_return */, true /* acquire */, false /* in_nmethod */);
+    __ safepoint_poll(safepoint_in_progress, true /* at_return */, false /* in_nmethod */);
     __ lwu(t0, Address(xthread, JavaThread::suspend_flags_offset()));
     __ bnez(t0, safepoint_in_progress);
     __ bind(safepoint_in_progress_done);

src/hotspot/cpu/riscv/stubDeclarations_riscv.hpp

@@ -26,6 +26,13 @@
 #ifndef CPU_RISCV_STUBDECLARATIONS_HPP
 #define CPU_RISCV_STUBDECLARATIONS_HPP
 
+#define STUBGEN_PREUNIVERSE_BLOBS_ARCH_DO(do_stub,                      \
+                                          do_arch_blob,                 \
+                                          do_arch_entry,                \
+                                          do_arch_entry_init)           \
+  do_arch_blob(preuniverse, 0)                                          \
+
+
 #define STUBGEN_INITIAL_BLOBS_ARCH_DO(do_stub,                          \
                                       do_arch_blob,                     \
                                       do_arch_entry,                    \

src/hotspot/cpu/riscv/stubGenerator_riscv.cpp

@@ -6660,6 +6660,10 @@ static const int64_t right_3_bits = right_n_bits(3);
 #undef __
 
   // Initialization
+  void generate_preuniverse_stubs() {
+    // preuniverse stubs are not needed for riscv
+  }
+
   void generate_initial_stubs() {
     // Generate initial stubs and initializes the entry points
 
@@ -6815,6 +6819,9 @@ static const int64_t right_3_bits = right_n_bits(3);
  public:
   StubGenerator(CodeBuffer* code, StubGenBlobId blob_id) : StubCodeGenerator(code, blob_id) {
     switch(blob_id) {
+    case preuniverse_id:
+      generate_preuniverse_stubs();
+      break;
     case initial_id:
       generate_initial_stubs();
       break;

src/hotspot/cpu/riscv/templateInterpreterGenerator_riscv.cpp

@@ -1229,15 +1229,7 @@ address TemplateInterpreterGenerator::generate_native_entry(bool synchronized) {
   {
     Label L, Continue;
 
-    // We need an acquire here to ensure that any subsequent load of the
-    // global SafepointSynchronize::_state flag is ordered after this load
-    // of the thread-local polling word. We don't want this poll to
-    // return false (i.e. not safepointing) and a later poll of the global
-    // SafepointSynchronize::_state spuriously to return true.
-    //
-    // This is to avoid a race when we're in a native->Java transition
-    // racing the code which wakes up from a safepoint.
-    __ safepoint_poll(L, true /* at_return */, true /* acquire */, false /* in_nmethod */);
+    __ safepoint_poll(L, true /* at_return */, false /* in_nmethod */);
     __ lwu(t1, Address(xthread, JavaThread::suspend_flags_offset()));
     __ beqz(t1, Continue);
     __ bind(L);
@@ -1388,7 +1380,7 @@ address TemplateInterpreterGenerator::generate_native_entry(bool synchronized) {
 
   Label slow_path;
   Label fast_path;
-  __ safepoint_poll(slow_path, true /* at_return */, false /* acquire */, false /* in_nmethod */);
+  __ safepoint_poll(slow_path, true /* at_return */, false /* in_nmethod */);
   __ j(fast_path);
 
   __ bind(slow_path);

src/hotspot/cpu/riscv/vm_version_riscv.cpp

@@ -203,15 +203,15 @@ void VM_Version::common_initialize() {
     }
   }
 
-  // Misc Intrinsics could depend on RVV
+  // Misc Intrinsics that could depend on RVV.
 
-  if (UseZba || UseRVV) {
+  if (!AvoidUnalignedAccesses && (UseZba || UseRVV)) {
     if (FLAG_IS_DEFAULT(UseCRC32Intrinsics)) {
       FLAG_SET_DEFAULT(UseCRC32Intrinsics, true);
     }
   } else {
     if (!FLAG_IS_DEFAULT(UseCRC32Intrinsics)) {
-      warning("CRC32 intrinsic requires Zba or RVV instructions (not available on this CPU)");
+      warning("CRC32 intrinsic are not available on this CPU.");
     }
     FLAG_SET_DEFAULT(UseCRC32Intrinsics, false);
   }

src/hotspot/cpu/s390/c1_globals_s390.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2016, 2018 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -44,17 +44,17 @@ define_pd_global(intx,     CompileThreshold,             1000);
 
 define_pd_global(intx,     OnStackReplacePercentage,     1400);
 define_pd_global(bool,     ProfileInterpreter,           false);
-define_pd_global(uintx,    ReservedCodeCacheSize,        32*M);
-define_pd_global(uintx,    NonProfiledCodeHeapSize,      13*M);
-define_pd_global(uintx,    ProfiledCodeHeapSize,         14*M);
-define_pd_global(uintx,    NonNMethodCodeHeapSize,       5*M);
-define_pd_global(uintx,    CodeCacheExpansionSize,       32*K);
-define_pd_global(uintx,    CodeCacheMinBlockLength,      1);
-define_pd_global(uintx,    CodeCacheMinimumUseSpace,     400*K);
+define_pd_global(size_t,   ReservedCodeCacheSize,        32*M);
+define_pd_global(size_t,   NonProfiledCodeHeapSize,      13*M);
+define_pd_global(size_t,   ProfiledCodeHeapSize,         14*M);
+define_pd_global(size_t,   NonNMethodCodeHeapSize,       5*M);
+define_pd_global(size_t,   CodeCacheExpansionSize,       32*K);
+define_pd_global(size_t,   CodeCacheMinBlockLength,      1);
+define_pd_global(size_t,   CodeCacheMinimumUseSpace,     400*K);
 define_pd_global(bool,     NeverActAsServerClassMachine, true);
 define_pd_global(size_t,   NewSizeThreadIncrease,        16*K);
 define_pd_global(uint64_t, MaxRAM,                       1ULL*G);
-define_pd_global(uintx,    InitialCodeCacheSize,         160*K);
+define_pd_global(size_t,   InitialCodeCacheSize,         160*K);
 #endif // !COMPILER2
 
 define_pd_global(bool,     UseTypeProfile,               false);

src/hotspot/cpu/s390/c2_globals_s390.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2016, 2018 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -67,17 +67,17 @@ define_pd_global(uint, SuperWordStoreToLoadForwardingFailureDetection, 16);
 define_pd_global(bool, IdealizeClearArrayNode,       false);
 
 // InitialCodeCacheSize derived from specjbb2000 run.
-define_pd_global(uintx, InitialCodeCacheSize,        2048*K); // Integral multiple of CodeCacheExpansionSize
-define_pd_global(uintx, ReservedCodeCacheSize,       48*M);
-define_pd_global(uintx, NonProfiledCodeHeapSize,     21*M);
-define_pd_global(uintx, ProfiledCodeHeapSize,        22*M);
-define_pd_global(uintx, NonNMethodCodeHeapSize,      5*M);
-define_pd_global(uintx, CodeCacheExpansionSize,      64*K);
+define_pd_global(size_t, InitialCodeCacheSize,       2048*K); // Integral multiple of CodeCacheExpansionSize
+define_pd_global(size_t, ReservedCodeCacheSize,      48*M);
+define_pd_global(size_t, NonProfiledCodeHeapSize,    21*M);
+define_pd_global(size_t, ProfiledCodeHeapSize,       22*M);
+define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M);
+define_pd_global(size_t, CodeCacheExpansionSize,     64*K);
 
 // Ergonomics related flags
 define_pd_global(uint64_t, MaxRAM,                   128ULL*G);
-define_pd_global(uintx, CodeCacheMinBlockLength,     4);
-define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
+define_pd_global(size_t, CodeCacheMinBlockLength,    4);
+define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 
 define_pd_global(bool,  TrapBasedRangeChecks,        false); // Not needed on z/Architecture.
 

src/hotspot/cpu/s390/frame_s390.hpp

@@ -410,7 +410,7 @@
 
   // C2I adapter frames:
   //
-  // STACK (interpreted called from compiled, on entry to frame manager):
+  // STACK (interpreted called from compiled, on entry to template interpreter):
   //
   //       [TOP_C2I_FRAME]
   //       [JIT_FRAME]

src/hotspot/cpu/s390/globals_s390.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2016, 2018 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -38,7 +38,7 @@ define_pd_global(bool,  UncommonNullCast,            true);  // Uncommon-trap nu
 
 define_pd_global(bool,  DelayCompilerStubsGeneration, COMPILER2_OR_JVMCI);
 
-define_pd_global(uintx, CodeCacheSegmentSize,        256);
+define_pd_global(size_t, CodeCacheSegmentSize,       256);
 // This shall be at least 32 for proper branch target alignment.
 // Ideally, this is 256 (cache line size). This keeps code end data
 // on separate lines. But we reduced it to 64 since 256 increased

src/hotspot/cpu/s390/register_s390.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2016, 2023 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -414,7 +414,7 @@ constexpr FloatRegister  Z_FARG2   = Z_F2;
 constexpr FloatRegister  Z_FARG3   = Z_F4;
 constexpr FloatRegister  Z_FARG4   = Z_F6;
 
-// Register declarations to be used in frame manager assembly code.
+// Register declarations to be used in template interpreter assembly code.
 // Use only non-volatile registers in order to keep values across C-calls.
 
 // Register to cache the integer value on top of the operand stack.
@@ -439,7 +439,7 @@ constexpr Register      Z_bcp          = Z_R13;
 // Bytecode which is dispatched (short lived!).
 constexpr Register      Z_bytecode     = Z_R14;
 
-// Temporary registers to be used within frame manager. We can use
+// Temporary registers to be used within template interpreter. We can use
 // the nonvolatile ones because the call stub has saved them.
 // Use only non-volatile registers in order to keep values across C-calls.
 constexpr Register Z_tmp_1 =  Z_R10;

src/hotspot/cpu/s390/runtime_s390.cpp

@@ -118,7 +118,7 @@ ExceptionBlob* OptoRuntime::generate_exception_blob() {
   __ z_lgr(Z_SP, saved_sp);
 
   // [Z_RET] isn't null was possible in hotspot5 but not in sapjvm6.
-  // C2I adapter extensions are now removed by a resize in the frame manager
+  // C2I adapter extensions are now removed by a resize in the template interpreter
   // (unwind_initial_activation_pending_exception).
 #ifdef ASSERT
   __ z_ltgr(handle_exception, handle_exception);

src/hotspot/cpu/s390/sharedRuntime_s390.cpp

@@ -2139,7 +2139,7 @@ static address gen_c2i_adapter(MacroAssembler  *masm,
   Register  value       = Z_R12;
 
   // Remember the senderSP so we can pop the interpreter arguments off of the stack.
-  // In addition, frame manager expects initial_caller_sp in Z_R10.
+  // In addition, template interpreter expects initial_caller_sp in Z_R10.
   __ z_lgr(sender_SP, Z_SP);
 
   // This should always fit in 14 bit immediate.

src/hotspot/cpu/s390/stubDeclarations_s390.hpp

@@ -26,6 +26,13 @@
 #ifndef CPU_S390_STUBDECLARATIONS_HPP
 #define CPU_S390_STUBDECLARATIONS_HPP
 
+#define STUBGEN_PREUNIVERSE_BLOBS_ARCH_DO(do_stub,                      \
+                                          do_arch_blob,                 \
+                                          do_arch_entry,                \
+                                          do_arch_entry_init)           \
+  do_arch_blob(preuniverse, 0)                                          \
+
+
 #define STUBGEN_INITIAL_BLOBS_ARCH_DO(do_stub,                          \
                                       do_arch_blob,                     \
                                       do_arch_entry,                    \

src/hotspot/cpu/s390/stubGenerator_s390.cpp

@@ -115,7 +115,7 @@ class StubGenerator: public StubCodeGenerator {
   //   [SP+176]  - thread                   : Thread*
   //
   address generate_call_stub(address& return_address) {
-    // Set up a new C frame, copy Java arguments, call frame manager
+    // Set up a new C frame, copy Java arguments, call template interpreter
     // or native_entry, and process result.
 
     StubGenStubId stub_id = StubGenStubId::call_stub_id;
@@ -272,10 +272,10 @@ class StubGenerator: public StubCodeGenerator {
 
     BLOCK_COMMENT("call {");
     {
-      // Call frame manager or native entry.
+      // Call template interpreter or native entry.
 
       //
-      // Register state on entry to frame manager / native entry:
+      // Register state on entry to template interpreter / native entry:
       //
       //   Z_ARG1 = r_top_of_arguments_addr  - intptr_t *sender tos (prepushed)
       //                                       Lesp = (SP) + copied_arguments_offset - 8
@@ -290,7 +290,7 @@ class StubGenerator: public StubCodeGenerator {
       __ z_lgr(Z_esp, r_top_of_arguments_addr);
 
       //
-      // Stack on entry to frame manager / native entry:
+      // Stack on entry to template interpreter / native entry:
       //
       //     F0      [TOP_IJAVA_FRAME_ABI]
       //             [outgoing Java arguments]
@@ -300,7 +300,7 @@ class StubGenerator: public StubCodeGenerator {
       //
 
       // Do a light-weight C-call here, r_new_arg_entry holds the address
-      // of the interpreter entry point (frame manager or native entry)
+      // of the interpreter entry point (template interpreter or native entry)
       // and save runtime-value of return_pc in return_address
       // (call by reference argument).
       return_address = __ call_stub(r_new_arg_entry);
@@ -309,11 +309,11 @@ class StubGenerator: public StubCodeGenerator {
 
     {
       BLOCK_COMMENT("restore registers {");
-      // Returned from frame manager or native entry.
+      // Returned from template interpreter or native entry.
       // Now pop frame, process result, and return to caller.
 
       //
-      // Stack on exit from frame manager / native entry:
+      // Stack on exit from template interpreter / native entry:
       //
       //     F0      [ABI]
       //             ...
@@ -330,7 +330,7 @@ class StubGenerator: public StubCodeGenerator {
       __ pop_frame();
 
       // Reload some volatile registers which we've spilled before the call
-      // to frame manager / native entry.
+      // to template interpreter / native entry.
       // Access all locals via frame pointer, because we know nothing about
       // the topmost frame's size.
       __ z_lg(r_arg_result_addr, result_address_offset, r_entryframe_fp);
@@ -3283,6 +3283,10 @@ class StubGenerator: public StubCodeGenerator {
     return start;
   }
 
+  void generate_preuniverse_stubs() {
+    // preuniverse stubs are not needed for s390
+  }
+
   void generate_initial_stubs() {
     // Generates all stubs and initializes the entry points.
 
@@ -3418,6 +3422,9 @@ class StubGenerator: public StubCodeGenerator {
  public:
   StubGenerator(CodeBuffer* code, StubGenBlobId blob_id) : StubCodeGenerator(code, blob_id) {
     switch(blob_id) {
+    case preuniverse_id:
+      generate_preuniverse_stubs();
+      break;
     case initial_id:
       generate_initial_stubs();
       break;

src/hotspot/cpu/s390/templateInterpreterGenerator_s390.cpp

@@ -1217,7 +1217,7 @@ void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) {
 
 // Various method entries
 
-// Math function, frame manager must set up an interpreter state, etc.
+// Math function, template interpreter must set up an interpreter state, etc.
 address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) {
 
   // Decide what to do: Use same platform specific instructions and runtime calls as compilers.

src/hotspot/cpu/x86/c1_globals_x86.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -42,15 +42,15 @@ define_pd_global(intx, CompileThreshold,               1500 );
 
 define_pd_global(intx,   OnStackReplacePercentage,     933  );
 define_pd_global(size_t, NewSizeThreadIncrease,        4*K  );
-define_pd_global(uintx,  InitialCodeCacheSize,         160*K);
-define_pd_global(uintx,  ReservedCodeCacheSize,        32*M );
-define_pd_global(uintx,  NonProfiledCodeHeapSize,      13*M );
-define_pd_global(uintx,  ProfiledCodeHeapSize,         14*M );
-define_pd_global(uintx,  NonNMethodCodeHeapSize,       5*M  );
+define_pd_global(size_t, InitialCodeCacheSize,         160*K);
+define_pd_global(size_t, ReservedCodeCacheSize,        32*M );
+define_pd_global(size_t, NonProfiledCodeHeapSize,      13*M );
+define_pd_global(size_t, ProfiledCodeHeapSize,         14*M );
+define_pd_global(size_t, NonNMethodCodeHeapSize,       5*M  );
 define_pd_global(bool,   ProfileInterpreter,           false);
-define_pd_global(uintx,  CodeCacheExpansionSize,       32*K );
-define_pd_global(uintx,  CodeCacheMinBlockLength,      1    );
-define_pd_global(uintx,  CodeCacheMinimumUseSpace,     400*K);
+define_pd_global(size_t, CodeCacheExpansionSize,       32*K );
+define_pd_global(size_t, CodeCacheMinBlockLength,      1    );
+define_pd_global(size_t, CodeCacheMinimumUseSpace,     400*K);
 define_pd_global(bool,   NeverActAsServerClassMachine, true );
 define_pd_global(uint64_t, MaxRAM,                    1ULL*G);
 define_pd_global(bool,   CICompileOSR,                 true );

src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp

@@ -4655,6 +4655,7 @@ static void convertF2I_slowpath(C2_MacroAssembler& masm, C2GeneralStub<Register,
   __ subptr(rsp, 8);
   __ movdbl(Address(rsp), src);
   __ call(RuntimeAddress(target));
+  // APX REX2 encoding for pop(dst) increases the stub size by 1 byte.
   __ pop(dst);
   __ jmp(stub.continuation());
 #undef __
@@ -4687,7 +4688,9 @@ void C2_MacroAssembler::convertF2I(BasicType dst_bt, BasicType src_bt, Register
     }
   }
 
-  auto stub = C2CodeStub::make<Register, XMMRegister, address>(dst, src, slowpath_target, 23, convertF2I_slowpath);
+  // Using the APX extended general purpose registers increases the instruction encoding size by 1 byte.
+  int max_size = 23 + (UseAPX ? 1 : 0);
+  auto stub = C2CodeStub::make<Register, XMMRegister, address>(dst, src, slowpath_target, max_size, convertF2I_slowpath);
   jcc(Assembler::equal, stub->entry());
   bind(stub->continuation());
 }

src/hotspot/cpu/x86/c2_globals_x86.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -50,8 +50,8 @@ define_pd_global(intx,  InteriorEntryAlignment,      16);
 define_pd_global(size_t, NewSizeThreadIncrease,     ScaleForWordSize(4*K));
 define_pd_global(intx,  LoopUnrollLimit,             60);
 // InitialCodeCacheSize derived from specjbb2000 run.
-define_pd_global(uintx, InitialCodeCacheSize,        2496*K); // Integral multiple of CodeCacheExpansionSize
-define_pd_global(uintx, CodeCacheExpansionSize,      64*K);
+define_pd_global(size_t, InitialCodeCacheSize,       2496*K); // Integral multiple of CodeCacheExpansionSize
+define_pd_global(size_t, CodeCacheExpansionSize,     64*K);
 
 // Ergonomics related flags
 define_pd_global(uint64_t, MaxRAM,                   128ULL*G);
@@ -60,8 +60,8 @@ define_pd_global(intx,  InteriorEntryAlignment,      4);
 define_pd_global(size_t, NewSizeThreadIncrease,      4*K);
 define_pd_global(intx,  LoopUnrollLimit,             50);     // Design center runs on 1.3.1
 // InitialCodeCacheSize derived from specjbb2000 run.
-define_pd_global(uintx, InitialCodeCacheSize,        2304*K); // Integral multiple of CodeCacheExpansionSize
-define_pd_global(uintx, CodeCacheExpansionSize,      32*K);
+define_pd_global(size_t, InitialCodeCacheSize,       2304*K); // Integral multiple of CodeCacheExpansionSize
+define_pd_global(size_t, CodeCacheExpansionSize,     32*K);
 
 // Ergonomics related flags
 define_pd_global(uint64_t, MaxRAM,                   4ULL*G);
@@ -79,12 +79,12 @@ define_pd_global(bool, SuperWordLoopUnrollAnalysis,  true);
 define_pd_global(uint, SuperWordStoreToLoadForwardingFailureDetection, 16);
 define_pd_global(bool, IdealizeClearArrayNode,       true);
 
-define_pd_global(uintx, ReservedCodeCacheSize,       48*M);
-define_pd_global(uintx, NonProfiledCodeHeapSize,     21*M);
-define_pd_global(uintx, ProfiledCodeHeapSize,        22*M);
-define_pd_global(uintx, NonNMethodCodeHeapSize,      5*M );
-define_pd_global(uintx, CodeCacheMinBlockLength,     6);
-define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
+define_pd_global(size_t, ReservedCodeCacheSize,      48*M);
+define_pd_global(size_t, NonProfiledCodeHeapSize,    21*M);
+define_pd_global(size_t, ProfiledCodeHeapSize,       22*M);
+define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M );
+define_pd_global(size_t, CodeCacheMinBlockLength,    6);
+define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
 
 define_pd_global(bool,  TrapBasedRangeChecks,        false); // Not needed on x86.
 

src/hotspot/cpu/x86/gc/z/z_x86_64.ad

@@ -118,6 +118,10 @@ instruct zLoadP(rRegP dst, memory mem, rFlagsReg cr)
   predicate(UseZGC && n->as_Load()->barrier_data() != 0);
   match(Set dst (LoadP mem));
   effect(TEMP dst, KILL cr);
+  // The main load is a candidate to implement implicit null checks. The
+  // barrier's slow path includes an identical reload, which does not need to be
+  // registered in the exception table because it is dominated by the main one.
+  ins_is_late_expanded_null_check_candidate(true);
 
   ins_cost(125);
 

src/hotspot/cpu/x86/globals_x86.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -37,7 +37,7 @@ define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap nulls
 
 define_pd_global(bool, DelayCompilerStubsGeneration, COMPILER2_OR_JVMCI);
 
-define_pd_global(uintx, CodeCacheSegmentSize,    64 COMPILER1_AND_COMPILER2_PRESENT(+64)); // Tiered compilation has large code-entry alignment.
+define_pd_global(size_t, CodeCacheSegmentSize,   64 COMPILER1_AND_COMPILER2_PRESENT(+64)); // Tiered compilation has large code-entry alignment.
 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
 // assign a different value for C2 without touching a number of files. Use
 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.

src/hotspot/cpu/x86/stubDeclarations_x86.hpp

@@ -26,6 +26,13 @@
 #ifndef CPU_X86_STUBDECLARATIONS_HPP
 #define CPU_X86_STUBDECLARATIONS_HPP
 
+#define STUBGEN_PREUNIVERSE_BLOBS_ARCH_DO(do_stub,                      \
+                                          do_arch_blob,                 \
+                                          do_arch_entry,                \
+                                          do_arch_entry_init)           \
+  do_arch_blob(preuniverse, 500)                                        \
+
+
 #define STUBGEN_INITIAL_BLOBS_ARCH_DO(do_stub,                          \
                                       do_arch_blob,                     \
                                       do_arch_entry,                    \
@@ -239,7 +246,7 @@
                                     do_arch_blob,                       \
                                     do_arch_entry,                      \
                                     do_arch_entry_init)                 \
-  do_arch_blob(final, 31000                                             \
+  do_arch_blob(final, 33000                                             \
                WINDOWS_ONLY(+22000) ZGC_ONLY(+20000))                   \
 
 #endif // CPU_X86_STUBDECLARATIONS_HPP

src/hotspot/cpu/x86/stubGenerator_x86_64.cpp

@@ -4049,6 +4049,11 @@ void StubGenerator::create_control_words() {
 }
 
 // Initialization
+void StubGenerator::generate_preuniverse_stubs() {
+  // atomic calls
+  StubRoutines::_fence_entry                = generate_orderaccess_fence();
+}
+
 void StubGenerator::generate_initial_stubs() {
   // Generates all stubs and initializes the entry points
 
@@ -4074,9 +4079,6 @@ void StubGenerator::generate_initial_stubs() {
   // is referenced by megamorphic call
   StubRoutines::_catch_exception_entry = generate_catch_exception();
 
-  // atomic calls
-  StubRoutines::_fence_entry                = generate_orderaccess_fence();
-
   // platform dependent
   StubRoutines::x86::_get_previous_sp_entry = generate_get_previous_sp();
 
@@ -4344,6 +4346,9 @@ void StubGenerator::generate_compiler_stubs() {
 
 StubGenerator::StubGenerator(CodeBuffer* code, StubGenBlobId blob_id) : StubCodeGenerator(code, blob_id) {
   switch(blob_id) {
+  case preuniverse_id:
+    generate_preuniverse_stubs();
+    break;
   case initial_id:
     generate_initial_stubs();
     break;

src/hotspot/cpu/x86/stubGenerator_x86_64.hpp

@@ -634,6 +634,7 @@ class StubGenerator: public StubCodeGenerator {
   void create_control_words();
 
   // Initialization
+  void generate_preuniverse_stubs();
   void generate_initial_stubs();
   void generate_continuation_stubs();
   void generate_compiler_stubs();

src/hotspot/cpu/x86/templateInterpreterGenerator_x86_64.cpp

@@ -465,13 +465,19 @@ address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::M
       __ call_VM_leaf0(CAST_FROM_FN_PTR(address, SharedRuntime::dtan));
     }
   } else if (kind == Interpreter::java_lang_math_tanh) {
-      assert(StubRoutines::dtanh() != nullptr, "not initialized");
+    if (StubRoutines::dtanh() != nullptr) {
       __ movdbl(xmm0, Address(rsp, wordSize));
       __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dtanh())));
+    } else {
+      return nullptr; // Fallback to default implementation
+    }
   } else if (kind == Interpreter::java_lang_math_cbrt) {
-    assert(StubRoutines::dcbrt() != nullptr, "not initialized");
-    __ movdbl(xmm0, Address(rsp, wordSize));
-    __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dcbrt())));
+    if (StubRoutines::dcbrt() != nullptr) {
+      __ movdbl(xmm0, Address(rsp, wordSize));
+      __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dcbrt())));
+    } else {
+      return nullptr; // Fallback to default implementation
+    }
   } else if (kind == Interpreter::java_lang_math_abs) {
     assert(StubRoutines::x86::double_sign_mask() != nullptr, "not initialized");
     __ movdbl(xmm0, Address(rsp, wordSize));

src/hotspot/cpu/x86/vm_version_x86.cpp

@@ -2111,7 +2111,7 @@ bool VM_Version::is_intel_cascade_lake() {
 // has improved implementation of 64-byte load/stores and so the default
 // threshold is set to 0 for these platforms.
 int VM_Version::avx3_threshold() {
-  return (is_intel_family_core() &&
+  return (is_intel_server_family() &&
           supports_serialize() &&
           FLAG_IS_DEFAULT(AVX3Threshold)) ? 0 : AVX3Threshold;
 }

src/hotspot/cpu/x86/x86_64.ad

@@ -2055,6 +2055,10 @@ ins_attrib ins_alignment(1);    // Required alignment attribute (must
                                 // compute_padding() function must be
                                 // provided for the instruction
 
+// Whether this node is expanded during code emission into a sequence of
+// instructions and the first instruction can perform an implicit null check.
+ins_attrib ins_is_late_expanded_null_check_candidate(false);
+
 //----------OPERANDS-----------------------------------------------------------
 // Operand definitions must precede instruction definitions for correct parsing
 // in the ADLC because operands constitute user defined types which are used in
@@ -10527,7 +10531,8 @@ instruct xorI_rReg_im1_ndd(rRegI dst, rRegI src, immI_M1 imm)
 // Xor Register with Immediate
 instruct xorI_rReg_imm(rRegI dst, immI src, rFlagsReg cr)
 %{
-  predicate(!UseAPX);
+  // Strict predicate check to make selection of xorI_rReg_im1 cost agnostic if immI src is -1.
+  predicate(!UseAPX && n->in(2)->bottom_type()->is_int()->get_con() != -1);
   match(Set dst (XorI dst src));
   effect(KILL cr);
   flag(PD::Flag_sets_sign_flag, PD::Flag_sets_zero_flag, PD::Flag_sets_parity_flag, PD::Flag_clears_overflow_flag, PD::Flag_clears_carry_flag);
@@ -10541,7 +10546,8 @@ instruct xorI_rReg_imm(rRegI dst, immI src, rFlagsReg cr)
 
 instruct xorI_rReg_rReg_imm_ndd(rRegI dst, rRegI src1, immI src2, rFlagsReg cr)
 %{
-  predicate(UseAPX);
+  // Strict predicate check to make selection of xorI_rReg_im1_ndd cost agnostic if immI src2 is -1.
+  predicate(UseAPX && n->in(2)->bottom_type()->is_int()->get_con() != -1);
   match(Set dst (XorI src1 src2));
   effect(KILL cr);
   flag(PD::Flag_sets_sign_flag, PD::Flag_sets_zero_flag, PD::Flag_sets_parity_flag, PD::Flag_clears_overflow_flag, PD::Flag_clears_carry_flag);
@@ -10559,6 +10565,7 @@ instruct xorI_rReg_mem_imm_ndd(rRegI dst, memory src1, immI src2, rFlagsReg cr)
   predicate(UseAPX);
   match(Set dst (XorI (LoadI src1) src2));
   effect(KILL cr);
+  ins_cost(150);
   flag(PD::Flag_sets_sign_flag, PD::Flag_sets_zero_flag, PD::Flag_sets_parity_flag, PD::Flag_clears_overflow_flag, PD::Flag_clears_carry_flag);
 
   format %{ "exorl    $dst, $src1, $src2\t# int ndd" %}
@@ -11201,7 +11208,8 @@ instruct xorL_rReg_im1_ndd(rRegL dst,rRegL src, immL_M1 imm)
 // Xor Register with Immediate
 instruct xorL_rReg_imm(rRegL dst, immL32 src, rFlagsReg cr)
 %{
-  predicate(!UseAPX);
+  // Strict predicate check to make selection of xorL_rReg_im1 cost agnostic if immL32 src is -1.
+  predicate(!UseAPX && n->in(2)->bottom_type()->is_long()->get_con() != -1L);
   match(Set dst (XorL dst src));
   effect(KILL cr);
   flag(PD::Flag_sets_sign_flag, PD::Flag_sets_zero_flag, PD::Flag_sets_parity_flag, PD::Flag_clears_overflow_flag, PD::Flag_clears_carry_flag);
@@ -11215,7 +11223,8 @@ instruct xorL_rReg_imm(rRegL dst, immL32 src, rFlagsReg cr)
 
 instruct xorL_rReg_rReg_imm(rRegL dst, rRegL src1, immL32 src2, rFlagsReg cr)
 %{
-  predicate(UseAPX);
+  // Strict predicate check to make selection of xorL_rReg_im1_ndd cost agnostic if immL32 src2 is -1.
+  predicate(UseAPX && n->in(2)->bottom_type()->is_long()->get_con() != -1L);
   match(Set dst (XorL src1 src2));
   effect(KILL cr);
   flag(PD::Flag_sets_sign_flag, PD::Flag_sets_zero_flag, PD::Flag_sets_parity_flag, PD::Flag_clears_overflow_flag, PD::Flag_clears_carry_flag);
@@ -11234,6 +11243,7 @@ instruct xorL_rReg_mem_imm(rRegL dst, memory src1, immL32 src2, rFlagsReg cr)
   match(Set dst (XorL (LoadL src1) src2));
   effect(KILL cr);
   flag(PD::Flag_sets_sign_flag, PD::Flag_sets_zero_flag, PD::Flag_sets_parity_flag, PD::Flag_clears_overflow_flag, PD::Flag_clears_carry_flag);
+  ins_cost(150);
 
   format %{ "exorq    $dst, $src1, $src2\t# long ndd" %}
   ins_encode %{

src/hotspot/cpu/zero/globals_zero.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -38,10 +38,10 @@ define_pd_global(bool,  UncommonNullCast,     true);
 
 define_pd_global(bool,  DelayCompilerStubsGeneration, false); // Don't have compiler's stubs
 
-define_pd_global(uintx, CodeCacheSegmentSize, 64 COMPILER1_AND_COMPILER2_PRESENT(+64)); // Tiered compilation has large code-entry alignment.
-define_pd_global(intx,  CodeEntryAlignment,   32);
-define_pd_global(intx,  OptoLoopAlignment,    16);
-define_pd_global(intx,  InlineSmallCode,      1000);
+define_pd_global(size_t, CodeCacheSegmentSize, 64 COMPILER1_AND_COMPILER2_PRESENT(+64)); // Tiered compilation has large code-entry alignment.
+define_pd_global(intx,   CodeEntryAlignment,   32);
+define_pd_global(intx,   OptoLoopAlignment,    16);
+define_pd_global(intx,   InlineSmallCode,      1000);
 
 // not used, but must satisfy following constraints:
 // 1.) <VALUE> must be in the allowed range for intx *and*

src/hotspot/cpu/zero/stubDeclarations_zero.hpp

@@ -26,6 +26,13 @@
 #ifndef CPU_ZERO_STUBDECLARATIONS_HPP
 #define CPU_ZERO_STUBDECLARATIONS_HPP
 
+#define STUBGEN_PREUNIVERSE_BLOBS_ARCH_DO(do_stub,                      \
+                                          do_arch_blob,                 \
+                                          do_arch_entry,                \
+                                          do_arch_entry_init)           \
+  do_arch_blob(preuniverse, 0)                                          \
+
+
 #define STUBGEN_INITIAL_BLOBS_ARCH_DO(do_stub,                          \
                                       do_arch_blob,                     \
                                       do_arch_entry,                    \

src/hotspot/cpu/zero/stubGenerator_zero.cpp

@@ -178,6 +178,10 @@ class StubGenerator: public StubCodeGenerator {
       StubRoutines::_oop_arraycopy;
   }
 
+  void generate_preuniverse_stubs() {
+    StubRoutines::_fence_entry               = ShouldNotCallThisStub();
+  }
+
   void generate_initial_stubs() {
     // entry points that exist in all platforms Note: This is code
     // that could be shared among different platforms - however the
@@ -194,7 +198,6 @@ class StubGenerator: public StubCodeGenerator {
     StubRoutines::_atomic_cmpxchg_entry      = ShouldNotCallThisStub();
     StubRoutines::_atomic_cmpxchg_long_entry = ShouldNotCallThisStub();
     StubRoutines::_atomic_add_entry          = ShouldNotCallThisStub();
-    StubRoutines::_fence_entry               = ShouldNotCallThisStub();
   }
 
   void generate_continuation_stubs() {
@@ -214,6 +217,9 @@ class StubGenerator: public StubCodeGenerator {
  public:
   StubGenerator(CodeBuffer* code, StubGenBlobId blob_id) : StubCodeGenerator(code, blob_id) {
     switch(blob_id) {
+    case preuniverse_id:
+      generate_preuniverse_stubs();
+      break;
     case initial_id:
       generate_initial_stubs();
       break;

src/hotspot/os/aix/c1_globals_aix.hpp

@@ -1,37 +0,0 @@
-/*
- * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2015 SAP SE. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_AIX_C1_GLOBALS_AIX_HPP
-#define OS_AIX_C1_GLOBALS_AIX_HPP
-
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-
-//
-// Sets the default values for operating system dependent flags used by the
-// client compiler. (see c1_globals.hpp)
-//
-
-#endif // OS_AIX_C1_GLOBALS_AIX_HPP

src/hotspot/os/aix/c2_globals_aix.hpp

@@ -1,37 +0,0 @@
-/*
- * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2013 SAP SE. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_AIX_C2_GLOBALS_AIX_HPP
-#define OS_AIX_C2_GLOBALS_AIX_HPP
-
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-
-//
-// Sets the default values for operating system dependent flags used by the
-// server compiler. (see c2_globals.hpp)
-//
-
-#endif // OS_AIX_C2_GLOBALS_AIX_HPP

src/hotspot/os/aix/os_aix.cpp

@@ -1261,69 +1261,6 @@ void os::pd_print_cpu_info(outputStream* st, char* buf, size_t buflen) {
   // Nothing to do beyond of what os::print_cpu_info() does.
 }
 
-static char saved_jvm_path[MAXPATHLEN] = {0};
-
-// Find the full path to the current module, libjvm.so.
-void os::jvm_path(char *buf, jint buflen) {
-  // Error checking.
-  if (buflen < MAXPATHLEN) {
-    assert(false, "must use a large-enough buffer");
-    buf[0] = '\0';
-    return;
-  }
-  // Lazy resolve the path to current module.
-  if (saved_jvm_path[0] != 0) {
-    strcpy(buf, saved_jvm_path);
-    return;
-  }
-
-  Dl_info dlinfo;
-  int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo);
-  assert(ret != 0, "cannot locate libjvm");
-  char* rp = os::realpath((char *)dlinfo.dli_fname, buf, buflen);
-  assert(rp != nullptr, "error in realpath(): maybe the 'path' argument is too long?");
-
-  // If executing unit tests we require JAVA_HOME to point to the real JDK.
-  if (Arguments::executing_unit_tests()) {
-    // Look for JAVA_HOME in the environment.
-    char* java_home_var = ::getenv("JAVA_HOME");
-    if (java_home_var != nullptr && java_home_var[0] != 0) {
-
-      // Check the current module name "libjvm.so".
-      const char* p = strrchr(buf, '/');
-      if (p == nullptr) {
-        return;
-      }
-      assert(strstr(p, "/libjvm") == p, "invalid library name");
-
-      stringStream ss(buf, buflen);
-      rp = os::realpath(java_home_var, buf, buflen);
-      if (rp == nullptr) {
-        return;
-      }
-
-      assert((int)strlen(buf) < buflen, "Ran out of buffer room");
-      ss.print("%s/lib", buf);
-
-      if (0 == access(buf, F_OK)) {
-        // Use current module name "libjvm.so"
-        ss.print("/%s/libjvm%s", Abstract_VM_Version::vm_variant(), JNI_LIB_SUFFIX);
-        assert(strcmp(buf + strlen(buf) - strlen(JNI_LIB_SUFFIX), JNI_LIB_SUFFIX) == 0,
-               "buf has been truncated");
-      } else {
-        // Go back to path of .so
-        rp = os::realpath((char *)dlinfo.dli_fname, buf, buflen);
-        if (rp == nullptr) {
-          return;
-        }
-      }
-    }
-  }
-
-  strncpy(saved_jvm_path, buf, sizeof(saved_jvm_path));
-  saved_jvm_path[sizeof(saved_jvm_path) - 1] = '\0';
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Virtual Memory
 

src/hotspot/os/bsd/c1_globals_bsd.hpp

@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_BSD_C1_GLOBALS_BSD_HPP
-#define OS_BSD_C1_GLOBALS_BSD_HPP
-
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-
-//
-// Sets the default values for operating system dependent flags used by the
-// client compiler. (see c1_globals.hpp)
-//
-
-#endif // OS_BSD_C1_GLOBALS_BSD_HPP

src/hotspot/os/bsd/os_bsd.cpp

@@ -154,7 +154,8 @@ julong os::Bsd::available_memory() {
   assert(kerr == KERN_SUCCESS,
          "host_statistics64 failed - check mach_host_self() and count");
   if (kerr == KERN_SUCCESS) {
-    available = vmstat.free_count * os::vm_page_size();
+    // free_count is just a lowerbound, other page categories can be freed too and make memory available
+    available = (vmstat.free_count + vmstat.inactive_count + vmstat.purgeable_count) * os::vm_page_size();
   }
 #endif
   return available;
@@ -1482,83 +1483,6 @@ void os::print_memory_info(outputStream* st) {
   st->cr();
 }
 
-static char saved_jvm_path[MAXPATHLEN] = {0};
-
-// Find the full path to the current module, libjvm
-void os::jvm_path(char *buf, jint buflen) {
-  // Error checking.
-  if (buflen < MAXPATHLEN) {
-    assert(false, "must use a large-enough buffer");
-    buf[0] = '\0';
-    return;
-  }
-  // Lazy resolve the path to current module.
-  if (saved_jvm_path[0] != 0) {
-    strcpy(buf, saved_jvm_path);
-    return;
-  }
-
-  char dli_fname[MAXPATHLEN];
-  dli_fname[0] = '\0';
-  bool ret = dll_address_to_library_name(
-                                         CAST_FROM_FN_PTR(address, os::jvm_path),
-                                         dli_fname, sizeof(dli_fname), nullptr);
-  assert(ret, "cannot locate libjvm");
-  char *rp = nullptr;
-  if (ret && dli_fname[0] != '\0') {
-    rp = os::realpath(dli_fname, buf, buflen);
-  }
-  if (rp == nullptr) {
-    return;
-  }
-
-  // If executing unit tests we require JAVA_HOME to point to the real JDK.
-  if (Arguments::executing_unit_tests()) {
-    // Look for JAVA_HOME in the environment.
-    char* java_home_var = ::getenv("JAVA_HOME");
-    if (java_home_var != nullptr && java_home_var[0] != 0) {
-
-      // Check the current module name "libjvm"
-      const char* p = strrchr(buf, '/');
-      assert(strstr(p, "/libjvm") == p, "invalid library name");
-
-      stringStream ss(buf, buflen);
-      rp = os::realpath(java_home_var, buf, buflen);
-      if (rp == nullptr) {
-        return;
-      }
-
-      assert((int)strlen(buf) < buflen, "Ran out of buffer space");
-      // Add the appropriate library and JVM variant subdirs
-      ss.print("%s/lib/%s", buf, Abstract_VM_Version::vm_variant());
-
-      if (0 != access(buf, F_OK)) {
-        ss.reset();
-        ss.print("%s/lib", buf);
-      }
-
-      // If the path exists within JAVA_HOME, add the JVM library name
-      // to complete the path to JVM being overridden.  Otherwise fallback
-      // to the path to the current library.
-      if (0 == access(buf, F_OK)) {
-        // Use current module name "libjvm"
-        ss.print("/libjvm%s", JNI_LIB_SUFFIX);
-        assert(strcmp(buf + strlen(buf) - strlen(JNI_LIB_SUFFIX), JNI_LIB_SUFFIX) == 0,
-               "buf has been truncated");
-      } else {
-        // Fall back to path of current library
-        rp = os::realpath(dli_fname, buf, buflen);
-        if (rp == nullptr) {
-          return;
-        }
-      }
-    }
-  }
-
-  strncpy(saved_jvm_path, buf, MAXPATHLEN);
-  saved_jvm_path[MAXPATHLEN - 1] = '\0';
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Virtual Memory
 

src/hotspot/os/linux/c1_globals_linux.hpp

@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_LINUX_C1_GLOBALS_LINUX_HPP
-#define OS_LINUX_C1_GLOBALS_LINUX_HPP
-
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-
-//
-// Sets the default values for operating system dependent flags used by the
-// client compiler. (see c1_globals.hpp)
-//
-
-#endif // OS_LINUX_C1_GLOBALS_LINUX_HPP

src/hotspot/os/linux/c2_globals_linux.hpp

@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_LINUX_C2_GLOBALS_LINUX_HPP
-#define OS_LINUX_C2_GLOBALS_LINUX_HPP
-
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-
-//
-// Sets the default values for operating system dependent flags used by the
-// server compiler. (see c2_globals.hpp)
-//
-
-#endif // OS_LINUX_C2_GLOBALS_LINUX_HPP

src/hotspot/os/linux/globals_linux.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -35,9 +35,6 @@
                          range,                                         \
                          constraint)                                    \
                                                                         \
-  product(bool, UseOprofile, false,                                     \
-        "(Deprecated) enable support for Oprofile profiler")            \
-                                                                        \
   product(bool, UseTransparentHugePages, false,                         \
           "Use MADV_HUGEPAGE for large pages")                          \
                                                                         \

src/hotspot/os/linux/os_linux.cpp

@@ -2746,118 +2746,9 @@ void os::get_summary_cpu_info(char* cpuinfo, size_t length) {
 #endif
 }
 
-static char saved_jvm_path[MAXPATHLEN] = {0};
-
-// Find the full path to the current module, libjvm.so
-void os::jvm_path(char *buf, jint buflen) {
-  // Error checking.
-  if (buflen < MAXPATHLEN) {
-    assert(false, "must use a large-enough buffer");
-    buf[0] = '\0';
-    return;
-  }
-  // Lazy resolve the path to current module.
-  if (saved_jvm_path[0] != 0) {
-    strcpy(buf, saved_jvm_path);
-    return;
-  }
-
-  char dli_fname[MAXPATHLEN];
-  dli_fname[0] = '\0';
-  bool ret = dll_address_to_library_name(
-                                         CAST_FROM_FN_PTR(address, os::jvm_path),
-                                         dli_fname, sizeof(dli_fname), nullptr);
-  assert(ret, "cannot locate libjvm");
-  char *rp = nullptr;
-  if (ret && dli_fname[0] != '\0') {
-    rp = os::realpath(dli_fname, buf, buflen);
-  }
-  if (rp == nullptr) {
-    return;
-  }
-
-  // If executing unit tests we require JAVA_HOME to point to the real JDK.
-  if (Arguments::executing_unit_tests()) {
-    // Look for JAVA_HOME in the environment.
-    char* java_home_var = ::getenv("JAVA_HOME");
-    if (java_home_var != nullptr && java_home_var[0] != 0) {
-
-      // Check the current module name "libjvm.so".
-      const char* p = strrchr(buf, '/');
-      if (p == nullptr) {
-        return;
-      }
-      assert(strstr(p, "/libjvm") == p, "invalid library name");
-
-      stringStream ss(buf, buflen);
-      rp = os::realpath(java_home_var, buf, buflen);
-      if (rp == nullptr) {
-        return;
-      }
-
-      assert((int)strlen(buf) < buflen, "Ran out of buffer room");
-      ss.print("%s/lib", buf);
-
-      if (0 == access(buf, F_OK)) {
-        // Use current module name "libjvm.so"
-        ss.print("/%s/libjvm%s", Abstract_VM_Version::vm_variant(), JNI_LIB_SUFFIX);
-        assert(strcmp(buf + strlen(buf) - strlen(JNI_LIB_SUFFIX), JNI_LIB_SUFFIX) == 0,
-               "buf has been truncated");
-      } else {
-        // Go back to path of .so
-        rp = os::realpath(dli_fname, buf, buflen);
-        if (rp == nullptr) {
-          return;
-        }
-      }
-    }
-  }
-
-  strncpy(saved_jvm_path, buf, MAXPATHLEN);
-  saved_jvm_path[MAXPATHLEN - 1] = '\0';
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Virtual Memory
 
-// Rationale behind this function:
-//  current (Mon Apr 25 20:12:18 MSD 2005) oprofile drops samples without executable
-//  mapping for address (see lookup_dcookie() in the kernel module), thus we cannot get
-//  samples for JITted code. Here we create private executable mapping over the code cache
-//  and then we can use standard (well, almost, as mapping can change) way to provide
-//  info for the reporting script by storing timestamp and location of symbol
-void linux_wrap_code(char* base, size_t size) {
-  static volatile jint cnt = 0;
-
-  static_assert(sizeof(off_t) == 8, "Expected Large File Support in this file");
-
-  if (!UseOprofile) {
-    return;
-  }
-
-  char buf[PATH_MAX+1];
-  int num = Atomic::add(&cnt, 1);
-
-  snprintf(buf, sizeof(buf), "%s/hs-vm-%d-%d",
-           os::get_temp_directory(), os::current_process_id(), num);
-  unlink(buf);
-
-  int fd = ::open(buf, O_CREAT | O_RDWR, S_IRWXU);
-
-  if (fd != -1) {
-    off_t rv = ::lseek(fd, size-2, SEEK_SET);
-    if (rv != (off_t)-1) {
-      if (::write(fd, "", 1) == 1) {
-        mmap(base, size,
-             PROT_READ|PROT_WRITE|PROT_EXEC,
-             MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE, fd, 0);
-      }
-    }
-    ::close(fd);
-    unlink(buf);
-  }
-}
-
 static bool recoverable_mmap_error(int err) {
   // See if the error is one we can let the caller handle. This
   // list of errno values comes from JBS-6843484. I can't find a

src/hotspot/os/posix/os_posix.cpp

@@ -59,6 +59,7 @@
 #ifdef AIX
 #include "loadlib_aix.hpp"
 #include "os_aix.hpp"
+#include "porting_aix.hpp"
 #endif
 #ifdef LINUX
 #include "os_linux.hpp"
@@ -1060,6 +1061,95 @@ bool os::same_files(const char* file1, const char* file2) {
   return is_same;
 }
 
+static char saved_jvm_path[MAXPATHLEN] = {0};
+
+// Find the full path to the current module, libjvm.so
+void os::jvm_path(char *buf, jint buflen) {
+  // Error checking.
+  if (buflen < MAXPATHLEN) {
+    assert(false, "must use a large-enough buffer");
+    buf[0] = '\0';
+    return;
+  }
+  // Lazy resolve the path to current module.
+  if (saved_jvm_path[0] != 0) {
+    strcpy(buf, saved_jvm_path);
+    return;
+  }
+
+  const char* fname;
+#ifdef AIX
+  Dl_info dlinfo;
+  int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo);
+  assert(ret != 0, "cannot locate libjvm");
+  if (ret == 0) {
+    return;
+  }
+  fname = dlinfo.dli_fname;
+#else
+  char dli_fname[MAXPATHLEN];
+  dli_fname[0] = '\0';
+  bool ret = dll_address_to_library_name(
+                                         CAST_FROM_FN_PTR(address, os::jvm_path),
+                                         dli_fname, sizeof(dli_fname), nullptr);
+  assert(ret, "cannot locate libjvm");
+  if (!ret) {
+    return;
+  }
+  fname = dli_fname;
+#endif // AIX
+  char* rp = nullptr;
+  if (fname[0] != '\0') {
+    rp = os::realpath(fname, buf, buflen);
+  }
+  if (rp == nullptr) {
+    return;
+  }
+
+  // If executing unit tests we require JAVA_HOME to point to the real JDK.
+  if (Arguments::executing_unit_tests()) {
+    // Look for JAVA_HOME in the environment.
+    char* java_home_var = ::getenv("JAVA_HOME");
+    if (java_home_var != nullptr && java_home_var[0] != 0) {
+
+      // Check the current module name "libjvm.so".
+      const char* p = strrchr(buf, '/');
+      if (p == nullptr) {
+        return;
+      }
+      assert(strstr(p, "/libjvm") == p, "invalid library name");
+
+      stringStream ss(buf, buflen);
+      rp = os::realpath(java_home_var, buf, buflen);
+      if (rp == nullptr) {
+        return;
+      }
+
+      assert((int)strlen(buf) < buflen, "Ran out of buffer room");
+      ss.print("%s/lib", buf);
+
+      // If the path exists within JAVA_HOME, add the VM variant directory and JVM
+      // library name to complete the path to JVM being overridden.  Otherwise fallback
+      // to the path to the current library.
+      if (0 == access(buf, F_OK)) {
+        // Use current module name "libjvm.so"
+        ss.print("/%s/libjvm%s", Abstract_VM_Version::vm_variant(), JNI_LIB_SUFFIX);
+        assert(strcmp(buf + strlen(buf) - strlen(JNI_LIB_SUFFIX), JNI_LIB_SUFFIX) == 0,
+               "buf has been truncated");
+      } else {
+        // Go back to path of .so
+        rp = os::realpath(fname, buf, buflen);
+        if (rp == nullptr) {
+          return;
+        }
+      }
+    }
+  }
+
+  strncpy(saved_jvm_path, buf, MAXPATHLEN);
+  saved_jvm_path[MAXPATHLEN - 1] = '\0';
+}
+
 // Called when creating the thread.  The minimum stack sizes have already been calculated
 size_t os::Posix::get_initial_stack_size(ThreadType thr_type, size_t req_stack_size) {
   size_t stack_size;

src/hotspot/os/windows/c1_globals_windows.hpp

@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_WINDOWS_C1_GLOBALS_WINDOWS_HPP
-#define OS_WINDOWS_C1_GLOBALS_WINDOWS_HPP
-
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-
-//
-// Sets the default values for operating system dependent flags used by the
-// client compiler. (see c1_globals.hpp)
-//
-
-#endif // OS_WINDOWS_C1_GLOBALS_WINDOWS_HPP

src/hotspot/os/windows/c2_globals_windows.hpp

@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_WINDOWS_C2_GLOBALS_WINDOWS_HPP
-#define OS_WINDOWS_C2_GLOBALS_WINDOWS_HPP
-
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-
-//
-// Sets the default values for operating system dependent flags used by the
-// server compiler. (see c2_globals.hpp)
-//
-
-#endif // OS_WINDOWS_C2_GLOBALS_WINDOWS_HPP

src/hotspot/os_cpu/bsd_aarch64/os_bsd_aarch64.cpp

@@ -81,14 +81,12 @@
 #endif
 
 #define SPELL_REG_SP "sp"
-#define SPELL_REG_FP "fp"
 
 #ifdef __APPLE__
 // see darwin-xnu/osfmk/mach/arm/_structs.h
 
 // 10.5 UNIX03 member name prefixes
 #define DU3_PREFIX(s, m) __ ## s.__ ## m
-#endif
 
 #define context_x    uc_mcontext->DU3_PREFIX(ss,x)
 #define context_fp   uc_mcontext->DU3_PREFIX(ss,fp)
@@ -97,6 +95,31 @@
 #define context_pc   uc_mcontext->DU3_PREFIX(ss,pc)
 #define context_cpsr uc_mcontext->DU3_PREFIX(ss,cpsr)
 #define context_esr  uc_mcontext->DU3_PREFIX(es,esr)
+#endif
+
+#ifdef __FreeBSD__
+# define context_x  uc_mcontext.mc_gpregs.gp_x
+# define context_fp context_x[REG_FP]
+# define context_lr uc_mcontext.mc_gpregs.gp_lr
+# define context_sp uc_mcontext.mc_gpregs.gp_sp
+# define context_pc uc_mcontext.mc_gpregs.gp_elr
+#endif
+
+#ifdef __NetBSD__
+# define context_x  uc_mcontext.__gregs
+# define context_fp uc_mcontext.__gregs[_REG_FP]
+# define context_lr uc_mcontext.__gregs[_REG_LR]
+# define context_sp uc_mcontext.__gregs[_REG_SP]
+# define context_pc uc_mcontext.__gregs[_REG_ELR]
+#endif
+
+#ifdef __OpenBSD__
+# define context_x  sc_x
+# define context_fp sc_x[REG_FP]
+# define context_lr sc_lr
+# define context_sp sc_sp
+# define context_pc sc_elr
+#endif
 
 #define REG_BCP context_x[22]
 
@@ -497,9 +520,11 @@ int os::extra_bang_size_in_bytes() {
   return 0;
 }
 
+#ifdef __APPLE__
 void os::current_thread_enable_wx(WXMode mode) {
   pthread_jit_write_protect_np(mode == WXExec);
 }
+#endif
 
 static inline void atomic_copy64(const volatile void *src, volatile void *dst) {
   *(jlong *) dst = *(const jlong *) src;

src/hotspot/share/adlc/main.cpp

@@ -481,7 +481,3 @@ int get_legal_text(FileBuff &fbuf, char **legal_text)
   *legal_text = legal_start;
   return (int) (legal_end - legal_start);
 }
-
-void *operator new( size_t size, int, const char *, int ) throw() {
-  return ::operator new( size );
-}