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8352675: Support Intel AVX10 converged vector ISA feature detection #24329

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b95ac21
8352675: Support Intel AVX10 converged vector ISA feature detection
Apr 3, 2025
6a02fe9
dropping unneeded feature enabling/checks
Apr 17, 2025
5173ff4
Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8352675
Apr 22, 2025
5d09adb
Add dynamic sized feature vectors
Apr 23, 2025
862217b
Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8352675
Apr 24, 2025
f413e0e
Fix windows build
Apr 25, 2025
9d62427
Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8352675
May 1, 2025
a925817
Refactoring code to create a seperate VM_Features class
May 2, 2025
ccfa432
Review comments resolutions
May 5, 2025
7b414b8
Updating comment
May 5, 2025
b25cc77
Review comments resolutions
May 6, 2025
650e3d6
build fixes for non-x86 targets
May 6, 2025
35aeb88
cleanups & refactorings
iwanowww May 6, 2025
cfc09d0
Making _features_bitmap size configurable
May 7, 2025
8acbd7a
Reveiw suggestions incorporated
May 8, 2025
1a3bce9
Code re-factoring from Vladimir
May 8, 2025
c65f077
Addressing Yudi's comments
May 8, 2025
b4838d0
Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8352675
May 9, 2025
f583a52
Sandhya's review comments resoultion
May 9, 2025
b4654fa
Review comments resolutions
May 9, 2025
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4 changes: 3 additions & 1 deletion src/hotspot/cpu/x86/vm_version_x86.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -491,7 +491,7 @@ class VM_Version_StubGenerator: public StubCodeGenerator {
// If UseAVX is uninitialized or is set by the user to include EVEX
if (use_evex) {
// check _cpuid_info.sef_cpuid7_ebx.bits.avx512f
// OR check _cpuid_info.std_cpuid24_ebx.bits.avx10
// OR check _cpuid_info.sefsl1_cpuid7_edx.bits.avx10
__ lea(rsi, Address(rbp, in_bytes(VM_Version::sef_cpuid7_offset())));
__ movl(rax, 0x10000);
__ andl(rax, Address(rsi, 4));
Expand Down Expand Up @@ -1066,6 +1066,8 @@ void VM_Version::get_processor_features() {
_features.clear_feature(CPU_AVX512_IFMA);
_features.clear_feature(CPU_AVX_IFMA);
_features.clear_feature(CPU_AVX512_FP16);
_features.clear_feature(CPU_AVX10_1);
_features.clear_feature(CPU_AVX10_2);
}
}

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