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[FMV][AArch64] Add feature CSSC and detect on linux platform. #132727

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Merged
merged 5 commits into from
Mar 26, 2025
Merged

[FMV][AArch64] Add feature CSSC and detect on linux platform. #132727

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b61d23a
[FMV][AArch64] Add feature CSSC and detect on linux platform.
labrinea Mar 24, 2025
b248efb
Merge branch 'main' into fmv-add-feature-cssc
labrinea Mar 25, 2025
5ddbfa1
Merge branch 'main' into fmv-add-feature-cssc
labrinea Mar 25, 2025
aa00f44
Merge branch 'main' into fmv-add-feature-cssc
labrinea Mar 25, 2025
e8767f8
Merge branch 'main' into fmv-add-feature-cssc
labrinea Mar 26, 2025
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4 changes: 4 additions & 0 deletions clang/test/CodeGen/AArch64/fmv-dependencies.c
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,9 @@ __attribute__((target_version("sve2-sm4"))) int fmv(void) { return 0; }
// CHECK: define dso_local i32 @fmv._Mwfxt() #[[wfxt:[0-9]+]] {
__attribute__((target_version("wfxt"))) int fmv(void) { return 0; }

// CHECK: define dso_local i32 @fmv._Mcssc() #[[cssc:[0-9]+]] {
__attribute__((target_version("cssc"))) int fmv(void) { return 0; }

// CHECK-NOT: define dso_local i32 @fmv._M{{.*}}
__attribute__((target_version("non_existent_extension"))) int fmv(void);

Expand Down Expand Up @@ -188,3 +191,4 @@ int caller() {
// CHECK: attributes #[[sve2_sha3]] = { {{.*}} "target-features"="+fp-armv8,+fullfp16,+neon,+outline-atomics,+sha2,+sha3,+sve,+sve2,+sve2-sha3,+v8a"
// CHECK: attributes #[[sve2_sm4]] = { {{.*}} "target-features"="+fp-armv8,+fullfp16,+neon,+outline-atomics,+sm4,+sve,+sve2,+sve2-sm4,+v8a"
// CHECK: attributes #[[wfxt]] = { {{.*}} "target-features"="+fp-armv8,+neon,+outline-atomics,+v8a,+wfxt"
// CHECK: attributes #[[cssc]] = { {{.*}} "target-features"="+cssc,+fp-armv8,+neon,+outline-atomics,+v8a"
375 changes: 195 additions & 180 deletions clang/test/CodeGen/AArch64/fmv-detection.c
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2 changes: 1 addition & 1 deletion compiler-rt/lib/builtins/cpu_model/AArch64CPUFeatures.inc
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Expand Up @@ -33,7 +33,7 @@ enum CPUFeatures {
FEAT_FP,
FEAT_SIMD,
FEAT_CRC,
RESERVED_FEAT_SHA1, // previously used and now ABI legacy
FEAT_CSSC,
FEAT_SHA2,
FEAT_SHA3,
RESERVED_FEAT_AES, // previously used and now ABI legacy
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2 changes: 2 additions & 0 deletions compiler-rt/lib/builtins/cpu_model/aarch64/fmv/mrs.inc
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Expand Up @@ -81,6 +81,8 @@ static void __init_cpu_features_constructor(unsigned long hwcap,
setCPUFeature(FEAT_SME_F64);
if (hwcap2 & HWCAP2_MOPS)
setCPUFeature(FEAT_MOPS);
if (hwcap2 & HWCAP2_CSSC)
setCPUFeature(FEAT_CSSC);
if (hwcap & HWCAP_FP) {
setCPUFeature(FEAT_FP);
// FP and AdvSIMD fields have the same value
Expand Down
3 changes: 3 additions & 0 deletions compiler-rt/lib/builtins/cpu_model/aarch64/hwcap.inc
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Expand Up @@ -187,3 +187,6 @@
#ifndef HWCAP2_LRCPC3
#define HWCAP2_LRCPC3 (1UL << 46)
#endif
#ifndef HWCAP2_CSSC
#define HWCAP2_CSSC (1UL << 34)
#endif
2 changes: 1 addition & 1 deletion llvm/include/llvm/TargetParser/AArch64CPUFeatures.inc
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Expand Up @@ -33,7 +33,7 @@ enum CPUFeatures {
FEAT_FP,
FEAT_SIMD,
FEAT_CRC,
RESERVED_FEAT_SHA1, // previously used and now ABI legacy
FEAT_CSSC,
FEAT_SHA2,
FEAT_SHA3,
RESERVED_FEAT_AES, // previously used and now ABI legacy
Expand Down
5 changes: 2 additions & 3 deletions llvm/include/llvm/TargetParser/AArch64FeatPriorities.inc
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Expand Up @@ -52,15 +52,14 @@ enum FeatPriorities {
PRIOR_SME,
PRIOR_MEMTAG2,
PRIOR_SB,
PRIOR_PREDRES,
PRIOR_SSBS2,
PRIOR_BTI,
PRIOR_LS64_ACCDATA,
PRIOR_WFXT,
PRIOR_SME_F64,
PRIOR_SME_I64,
PRIOR_SME2,
PRIOR_MOPS
PRIOR_MOPS,
PRIOR_CSSC
};

#endif
1 change: 1 addition & 0 deletions llvm/lib/Target/AArch64/AArch64FMV.td
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Expand Up @@ -82,3 +82,4 @@ def : FMVExtension<"sve2-bitperm", "SVE_BITPERM">;
def : FMVExtension<"sve2-sha3", "SVE_SHA3">;
def : FMVExtension<"sve2-sm4", "SVE_SM4">;
def : FMVExtension<"wfxt", "WFXT">;
def : FMVExtension<"cssc", "CSSC">;