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llvm-project/clang/test/CodeGen/target-builtin-error.c

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Add an error when calling a builtin that requires features that don't match the feature set of the function that they're being called from. This ensures that we can effectively diagnose some[1] code that would instead ICE in the backend with a failure to select message. Example: __m128d foo(__m128d a, __m128d b) { return __builtin_ia32_addsubps(b, a); } compiled for normal x86_64 via: clang -target x86_64-linux-gnu -c would fail to compile in the back end because the normal subtarget features for x86_64 only include sse2 and the builtin requires sse3. [1] We're still not erroring on: __m128i bar(__m128i const *p) { return _mm_lddqu_si128(p); } where we should fail and error on an always_inline function being inlined into a function that doesn't support the subtarget features required. llvm-svn: 250473
2015-10-16 07:47:11 +08:00
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o -
#define __MM_MALLOC_H
#include <x86intrin.h>
Fix reliance on lax vector conversions in tests for x86 intrinsics. llvm-svn: 372062
2019-09-17 11:56:28 +08:00
__m128 foo(__m128 a, __m128 b) {
Add an error when calling a builtin that requires features that don't match the feature set of the function that they're being called from. This ensures that we can effectively diagnose some[1] code that would instead ICE in the backend with a failure to select message. Example: __m128d foo(__m128d a, __m128d b) { return __builtin_ia32_addsubps(b, a); } compiled for normal x86_64 via: clang -target x86_64-linux-gnu -c would fail to compile in the back end because the normal subtarget features for x86_64 only include sse2 and the builtin requires sse3. [1] We're still not erroring on: __m128i bar(__m128i const *p) { return _mm_lddqu_si128(p); } where we should fail and error on an always_inline function being inlined into a function that doesn't support the subtarget features required. llvm-svn: 250473
2015-10-16 07:47:11 +08:00
return __builtin_ia32_addsubps(b, a); // expected-error {{'__builtin_ia32_addsubps' needs target feature sse3}}
}