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[ARM] Set __ARM_FEATURE_SIMD32 for +dsp cores 

ARM_FEATURE_DSP is already set for targets with the +dsp feature. In
the backend, this target feature is also used to represent the
availability of the of the instructions that the ACLE guard through
the __ARM_FEATURE_SIMD32 macro. We don't have any cores that
implement one and not the other, so set this macro for cores later
than V6 or for Cortex-M cores that the target parser, or user, reports
that the 'dsp' instructions are supported.

Differential Revision: https://reviews.llvm.org/D51093

llvm-svn: 340911
This commit is contained in:
Sam Parker 2018-08-29 10:39:03 +00:00
parent 39715e3a66
commit 96d4872899
2 changed files with 8 additions and 4 deletions
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2
clang/lib/Basic/Targets/ARM.cpp
View File

@ -661,7 +661,7 @@ void ARMTargetInfo::getTargetDefines(const LangOptions &Opts,
}
// ACLE 6.4.9 32-bit SIMD instructions
if (ArchVersion >= 6 && (CPUProfile != "M" || CPUAttr == "7EM"))
if (ArchVersion >= 6 || (CPUProfile == "M" && DSP))
Builder.defineMacro("__ARM_FEATURE_SIMD32", "1");
// ACLE 6.4.10 Hardware Integer Divide

10
clang/test/Preprocessor/arm-acle-6.4.c
View File

@ -174,10 +174,14 @@
// CHECK-V7M: __ARM_FEATURE_SAT 1
// CHECK-V7M: __ARM_FEATURE_UNALIGNED 1
// RUN: %clang -target arm-none-linux-eabi -march=armv7e-m -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-V7EM
// RUN: %clang -target arm-none-linux-eabi -march=armv7e-m -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
// RUN: %clang --target=arm-arm-none-eabi -mcpu=cortex-m4 -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
// RUN: %clang --target=arm-arm-none-eabi -mcpu=cortex-m7 -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
// RUN: %clang --target=arm-arm-none-eabi -mcpu=cortex-m33 -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
// RUN: %clang --target=arm-arm-none-eabi -march=armv8m.main+dsp -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
// CHECK-V7EM: __ARM_FEATURE_DSP 1
// CHECK-V7EM: __ARM_FEATURE_SIMD32 1
// CHECK-M-DSP: __ARM_FEATURE_DSP 1
// CHECK-M-DSP: __ARM_FEATURE_SIMD32 1
// RUN: %clang -target arm-none-linux-eabi -march=armv8-a -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-V8A