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[AArch64] Disable __ARM_FEATURE_SVE without ACLE. 

The Arm C Language Extensions for SVE document specifies that 
__ARM_FEATURE_SVE should be set when the compiler supports SVE and
implements all the extensions described in the document.

This is currently not yet the case, so the feature should be disabled
until the compiler can provide all the extensions as described.

Reviewers: c-rhodes, rengolin, rovka, ktkachov

Reviewed By: rengolin

Differential Revision: https://reviews.llvm.org/D65404

llvm-svn: 367301
This commit is contained in:
Sander de Smalen 2019-07-30 10:14:39 +00:00
parent 5c43ffd614
commit 405c999d97
2 changed files with 1 additions and 4 deletions
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3
clang/lib/Basic/Targets/AArch64.cpp
View File

@ -196,9 +196,6 @@ void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts,
Builder.defineMacro("__ARM_NEON_FP", "0xE");
}
if (FPU & SveMode)
Builder.defineMacro("__ARM_FEATURE_SVE", "1");
if (HasCRC)
Builder.defineMacro("__ARM_FEATURE_CRC32", "1");

2
clang/test/Preprocessor/aarch64-target-features.c
View File

@ -88,7 +88,7 @@
// RUN: %clang -target aarch64 -mtune=cyclone -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MTUNE-CYCLONE %s
// RUN: %clang -target aarch64-none-linux-gnu -march=armv8-a+sve -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-SVE %s
// CHECK-SVE: __ARM_FEATURE_SVE 1
// CHECK-SVE-NOT: __ARM_FEATURE_SVE 1
// RUN: %clang -target aarch64-none-linux-gnu -march=armv8.2a+dotprod -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-DOTPROD %s
// CHECK-DOTPROD: __ARM_FEATURE_DOTPROD 1