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[Clang] Remove AArch64TargetInfo::setArchFeatures #146107

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Merged
merged 1 commit into from
Jul 1, 2025
Merged

[Clang] Remove AArch64TargetInfo::setArchFeatures #146107

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74 changes: 0 additions & 74 deletions clang/lib/Basic/Targets/AArch64.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -125,79 +125,6 @@ static constexpr auto BuiltinAArch64Infos =
#include "clang/Basic/BuiltinsAArch64.def"
});

void AArch64TargetInfo::setArchFeatures() {
if (*ArchInfo == llvm::AArch64::ARMV8R) {
HasDotProd = true;
HasDIT = true;
HasFlagM = true;
HasRCPC = true;
FPU |= NeonMode;
HasCCPP = true;
HasCRC = true;
HasLSE = true;
HasRDM = true;
} else if (ArchInfo->Version.getMajor() == 8) {
if (ArchInfo->Version.getMinor() >= 7u) {
HasWFxT = true;
}
if (ArchInfo->Version.getMinor() >= 6u) {
HasBFloat16 = true;
HasMatMul = true;
}
if (ArchInfo->Version.getMinor() >= 5u) {
HasAlternativeNZCV = true;
HasFRInt3264 = true;
HasSSBS = true;
HasSB = true;
HasPredRes = true;
HasBTI = true;
}
if (ArchInfo->Version.getMinor() >= 4u) {
HasDotProd = true;
HasDIT = true;
HasFlagM = true;
}
if (ArchInfo->Version.getMinor() >= 3u) {
HasRCPC = true;
FPU |= NeonMode;
}
if (ArchInfo->Version.getMinor() >= 2u) {
HasCCPP = true;
}
if (ArchInfo->Version.getMinor() >= 1u) {
HasCRC = true;
HasLSE = true;
HasRDM = true;
}
} else if (ArchInfo->Version.getMajor() == 9) {
if (ArchInfo->Version.getMinor() >= 2u) {
HasWFxT = true;
}
if (ArchInfo->Version.getMinor() >= 1u) {
HasBFloat16 = true;
HasMatMul = true;
}
FPU |= SveMode;
HasSVE2 = true;
HasFullFP16 = true;
HasAlternativeNZCV = true;
HasFRInt3264 = true;
HasSSBS = true;
HasSB = true;
HasPredRes = true;
HasBTI = true;
HasDotProd = true;
HasDIT = true;
HasFlagM = true;
HasRCPC = true;
FPU |= NeonMode;
HasCCPP = true;
HasCRC = true;
HasLSE = true;
HasRDM = true;
}
}

AArch64TargetInfo::AArch64TargetInfo(const llvm::Triple &Triple,
const TargetOptions &Opts)
: TargetInfo(Triple), ABI("aapcs") {
Expand Down Expand Up @@ -1266,7 +1193,6 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
}

setDataLayout();
setArchFeatures();

if (HasNoFP) {
FPU &= ~FPUMode;
Expand Down
2 changes: 0 additions & 2 deletions clang/lib/Basic/Targets/AArch64.h
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Original file line number Diff line number Diff line change
Expand Up @@ -158,8 +158,6 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
return false;
}

void setArchFeatures();

void getTargetDefinesARMV81A(const LangOptions &Opts,
MacroBuilder &Builder) const;
void getTargetDefinesARMV82A(const LangOptions &Opts,
Expand Down
5 changes: 5 additions & 0 deletions clang/test/Preprocessor/arm-target-features.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1049,3 +1049,8 @@
// CHECK-NOSIMD-NOT: #define __ARM_NEON 1
// CHECK-NOSIMD-NOT: #define __ARM_NEON_FP 0x6
// CHECK-NOSIMD-NOT: #define __ARM_NEON__ 1

// Check that disabling SVE, as set by armv9-a, does not define __ARM_FEATURE_SVE* macros.
// RUN: %clang -target aarch64 -march=armv9-a+nosve -x c -E -dM -o - %s | FileCheck -check-prefix=CHECK-NOSVE %s
// CHECK-NOSVE-NOT: #define __ARM_FEATURE_SVE 1
// CHECK-NOSVE-NOT: #define __ARM_FEATURE_SVE2 1
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