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Add Macro for CSSC Feature #143148

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Merged
merged 1 commit into from
Jun 13, 2025
Merged

Add Macro for CSSC Feature #143148

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6 changes: 6 additions & 0 deletions clang/lib/Basic/Targets/AArch64.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -625,6 +625,9 @@ void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts,
if (HasCRC)
Builder.defineMacro("__ARM_FEATURE_CRC32", "1");

if (HasCSSC)
Builder.defineMacro("__ARM_FEATURE_CSSC", "1");

if (HasRCPC3)
Builder.defineMacro("__ARM_FEATURE_RCPC", "3");
else if (HasRCPC)
Expand Down Expand Up @@ -874,6 +877,7 @@ bool AArch64TargetInfo::hasFeature(StringRef Feature) const {
.Case("rdm", HasRDM)
.Case("lse", HasLSE)
.Case("crc", HasCRC)
.Case("cssc", HasCSSC)
.Case("sha2", HasSHA2)
.Case("sha3", HasSHA3)
.Cases("aes", "pmull", HasAES)
Expand Down Expand Up @@ -1249,6 +1253,8 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
HasPAuthLR = true;
HasPAuth = true;
}
if (Feature == "+cssc")
HasCSSC = true;
}

// Check features that are manually disabled by command line options.
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1 change: 1 addition & 0 deletions clang/lib/Basic/Targets/AArch64.h
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Expand Up @@ -66,6 +66,7 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {

unsigned FPU = FPUMode;
bool HasCRC = false;
bool HasCSSC = false;
bool HasAES = false;
bool HasSHA2 = false;
bool HasSHA3 = false;
Expand Down
5 changes: 4 additions & 1 deletion clang/test/Preprocessor/aarch64-target-features.c
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Expand Up @@ -744,7 +744,10 @@
// CHECK-SMEB16B16: __ARM_FEATURE_SME2 1
// CHECK-SMEB16B16: __ARM_FEATURE_SME_B16B16 1
// CHECK-SMEB16B16: __ARM_FEATURE_SVE_B16B16 1
//

// RUN: %clang --target=aarch64 -march=armv9-a+cssc -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-CSSC %s
// CHECK-CSSC: __ARM_FEATURE_CSSC 1

// RUN: %clang --target=aarch64 -march=armv9-a+fp8 -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-FP8 %s
// CHECK-FP8: __ARM_FEATURE_FP8 1

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