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[AArch64] Add command-line options for Statistical Profiling Extension 

This adds the "+profile" and +noprofile" suffixes for the -march and
-mcpu options, to allow enabling or disabling the options Statistical
Profiling Extension to ARMv8.2-A.

Differential Revision: http://reviews.llvm.org/D15023

llvm-svn: 254161
This commit is contained in:
Oliver Stannard 2015-11-26 15:38:54 +00:00
parent 76afca7617
commit 4cc70802c7
2 changed files with 8 additions and 0 deletions
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2
clang/lib/Driver/Tools.cpp
View File

@ -2032,11 +2032,13 @@ static bool DecodeAArch64Features(const Driver &D, StringRef text,
.Case("crc", "+crc")
.Case("crypto", "+crypto")
.Case("fp16", "+fullfp16")
.Case("profile", "+spe")
.Case("nofp", "-fp-armv8")
.Case("nosimd", "-neon")
.Case("nocrc", "-crc")
.Case("nocrypto", "-crypto")
.Case("nofp16", "-fullfp16")
.Case("noprofile", "-spe")
.Default(nullptr);
if (result)
Features.push_back(result);

6
clang/test/Driver/aarch64-cpus.c
View File

@ -126,6 +126,12 @@
// RUN: %clang -target aarch64 -march=armv8.2-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16 %s
// GENERICV82A-FP16: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+fullfp16"
// RUN: %clang -target aarch64 -march=armv8.2-a+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-SPE %s
// GENERICV82A-SPE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+spe"
//
// RUN: %clang -target aarch64 -march=armv8.2-a+fp16+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-SPE %s
// GENERICV82A-FP16-SPE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+fullfp16" "-target-feature" "+spe"
// ================== Check whether -march accepts mixed-case values.
// RUN: %clang -target aarch64_be -march=ARMV8.1A -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
// RUN: %clang -target aarch64_be -march=ARMV8.1-A -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s