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Allow case-insensitive values for -mcpu for AArch64 target in line with GCC. 

GCC allows case-insensitive values for -mcpu, -march and -mtune options.
This patch implements the same behaviour for the -mcpu option for the AArch64 target.

llvm-svn: 239619
This commit is contained in:
Gabor Ballabas 2015-06-12 17:33:37 +00:00
parent c74ac023d8
commit 726ce7fc57
3 changed files with 23 additions and 3 deletions
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8
clang/lib/Driver/Tools.cpp
View File

@ -850,7 +850,7 @@ static std::string getAArch64TargetCPU(const ArgList &Args) {
CPU = A->getValue();
} else if ((A = Args.getLastArg(options::OPT_mcpu_EQ))) {
StringRef Mcpu = A->getValue();
CPU = Mcpu.split("+").first;
CPU = Mcpu.split("+").first.lower();
}
// Handle CPU name is 'native'.
@ -1893,7 +1893,8 @@ getAArch64ArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu,
const ArgList &Args,
std::vector<const char *> &Features) {
StringRef CPU;
if (!DecodeAArch64Mcpu(D, Mcpu, CPU, Features))
std::string McpuLowerCase = Mcpu.lower();
if (!DecodeAArch64Mcpu(D, McpuLowerCase, CPU, Features))
return false;
return true;
@ -1919,7 +1920,8 @@ getAArch64MicroArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu,
std::vector<const char *> &Features) {
StringRef CPU;
std::vector<const char *> DecodedFeature;
if (!DecodeAArch64Mcpu(D, Mcpu, CPU, DecodedFeature))
std::string McpuLowerCase = Mcpu.lower();
if (!DecodeAArch64Mcpu(D, McpuLowerCase, CPU, DecodedFeature))
return false;
return getAArch64MicroArchFeaturesFromMtune(D, CPU, Args, Features);

12
clang/test/Driver/aarch64-cpus.c
View File

@ -111,3 +111,15 @@
// RUN: %clang -target aarch64_be -mbig-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
// GENERICV81A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.1a"
// ================== Check whether -mcpu accepts mixed-case values.
// RUN: %clang -target aarch64 -mcpu=Cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA53 %s
// CASE-INSENSITIVE-CA53: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a53"
// RUN: %clang -target arm64 -mcpu=cortex-A53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA53 %s
// CASE-INSENSITIVE-ARM64-CA53: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a53"
// RUN: %clang -target aarch64 -mcpu=CORTEX-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA57 %s
// CASE-INSENSITIVE-CA57: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a57"
// RUN: %clang -target arm64 -mcpu=Cortex-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA57 %s
// CASE-INSENSITIVE-ARM64-CA57: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a57"

6
clang/test/Preprocessor/aarch64-target-features.c
View File

@ -92,6 +92,12 @@
// RUN: %clang -target aarch64 -mcpu=generic+crc -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-2 %s
// RUN: %clang -target aarch64 -mcpu=generic+nocrc+crc -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-2 %s
// RUN: %clang -target aarch64 -mcpu=cortex-a53+nosimd -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-3 %s
// ================== Check whether -mcpu accepts mixed-case features.
// RUN: %clang -target aarch64 -mcpu=cyclone+NOCRYPTO -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-1 %s
// RUN: %clang -target aarch64 -mcpu=cyclone+CRYPTO+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-1 %s
// RUN: %clang -target aarch64 -mcpu=generic+Crc -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-2 %s
// RUN: %clang -target aarch64 -mcpu=GENERIC+nocrc+CRC -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-2 %s
// RUN: %clang -target aarch64 -mcpu=cortex-a53+noSIMD -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-3 %s
// CHECK-MCPU-1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "-crypto" "-target-feature" "+zcm" "-target-feature" "+zcz"
// CHECK-MCPU-2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc"
// CHECK-MCPU-3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "-neon"