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[ARM64/AArch64] Hook up CRC32 subtarget feature to the driver 

llvm-svn: 207841
This commit is contained in:
Bradley Smith 2014-05-02 15:17:51 +00:00
parent d7360900a8
commit 418c5935f8
3 changed files with 28 additions and 0 deletions
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14
clang/lib/Basic/Targets.cpp
View File

@ -3399,6 +3399,7 @@ class AArch64TargetInfo : public TargetInfo {
};
unsigned FPU;
unsigned CRC;
unsigned Crypto;
static const Builtin::Info BuiltinInfo[];
@ -3475,6 +3476,9 @@ public:
Builder.defineMacro("__ARM_NEON_FP", "7");
}
if (CRC)
Builder.defineMacro("__ARM_FEATURE_CRC32");
if (Crypto) {
Builder.defineMacro("__ARM_FEATURE_CRYPTO");
}
@ -3498,10 +3502,13 @@ public:
bool handleTargetFeatures(std::vector<std::string> &Features,
DiagnosticsEngine &Diags) override {
FPU = FPUMode;
CRC = 0;
Crypto = 0;
for (unsigned i = 0, e = Features.size(); i != e; ++i) {
if (Features[i] == "+neon")
FPU = NeonMode;
if (Features[i] == "+crc")
CRC = 1;
if (Features[i] == "+crypto")
Crypto = 1;
}
@ -4492,6 +4499,7 @@ class ARM64TargetInfo : public TargetInfo {
};
unsigned FPU;
unsigned CRC;
unsigned Crypto;
static const Builtin::Info BuiltinInfo[];
@ -4589,6 +4597,9 @@ public:
Builder.defineMacro("__ARM_NEON_FP", "7");
}
if (CRC)
Builder.defineMacro("__ARM_FEATURE_CRC32");
if (Crypto)
Builder.defineMacro("__ARM_FEATURE_CRYPTO");
}
@ -4608,10 +4619,13 @@ public:
bool handleTargetFeatures(std::vector<std::string> &Features,
DiagnosticsEngine &Diags) override {
FPU = FPUMode;
CRC = 0;
Crypto = 0;
for (unsigned i = 0, e = Features.size(); i != e; ++i) {
if (Features[i] == "+neon")
FPU = NeonMode;
if (Features[i] == "+crc")
CRC = 1;
if (Features[i] == "+crypto")
Crypto = 1;
}

9
clang/lib/Driver/Tools.cpp
View File

@ -1540,6 +1540,15 @@ static void getAArch64TargetFeatures(const Driver &D, const ArgList &Args,
Features.push_back("-crypto");
Features.push_back("-neon");
}
// En/disable crc
if (Arg *A = Args.getLastArg(options::OPT_mcrc,
options::OPT_mnocrc)) {
if (A->getOption().matches(options::OPT_mcrc))
Features.push_back("+crc");
else
Features.push_back("-crc");
}
}
static void getTargetFeatures(const Driver &D, const llvm::Triple &Triple,

5
clang/test/Preprocessor/aarch64-target-features.c
View File

@ -10,6 +10,7 @@
// CHECK: __ARM_ARCH_PROFILE 'A'
// CHECK-NOT: __ARM_FEATURE_BIG_ENDIAN
// CHECK: __ARM_FEATURE_CLZ 1
// CHECK-NOT: __ARM_FEATURE_CRC32 1
// CHECK-NOT: __ARM_FEATURE_CRYPTO 1
// CHECK: __ARM_FEATURE_DIV 1
// CHECK: __ARM_FEATURE_FMA 1
@ -27,6 +28,10 @@
// RUN: %clang -target aarch64-none-linux-gnu -mfpu=crypto-neon-fp-armv8 -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-CRYPTO %s
// CHECK-CRYPTO: __ARM_FEATURE_CRYPTO 1
// RUN: %clang -target aarch64-none-linux-gnu -mcrc -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-CRC32 %s
// RUN: %clang -target arm64-none-linux-gnu -mcrc -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-CRC32 %s
// CHECK-CRC32: __ARM_FEATURE_CRC32 1
// RUN: %clang -target aarch64-none-linux-gnu -ffast-math -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-FASTMATH %s
// CHECK-FASTMATH: __ARM_FP_FAST 1