Handle sse turning on mmx, but no -mmx not turning off SSE.
Rationale :
// sse3
__m128d test_mm_addsub_pd(__m128d A, __m128d B) {
return _mm_addsub_pd(A, B);
}
// mmx
void shift(__m64 a, __m64 b, int c) {
_mm_slli_pi16(a, c);
_mm_slli_pi32(a, c);
_mm_slli_si64(a, c);
_mm_srli_pi16(a, c);
_mm_srli_pi32(a, c);
_mm_srli_si64(a, c);
_mm_srai_pi16(a, c);
_mm_srai_pi32(a, c);
}
clang -msse3 -mno-mmx file.c -c
For this code we should be able to explicitly turn off MMX
without affecting the compilation of the SSE3 function and then
diagnose and error on compiling the MMX function.
This is a preparatory patch to the actual diagnosis code which is
coming in a future patch. This sets us up to have the correct information
where we need it and verifies that it's being emitted for the backend
to handle.
llvm-svn: 249733
2015-10-09 04:10:18 +08:00
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// RUN: %clang_cc1 -triple i386-linux-gnu -emit-llvm %s -o - | FileCheck %s
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// Picking a cpu that doesn't have mmx or sse by default so we can enable it later.
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#define __MM_MALLOC_H
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#include <x86intrin.h>
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// Verify that when we turn on sse that we also turn on mmx.
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void __attribute__((target("sse"))) shift(__m64 a, __m64 b, int c) {
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_mm_slli_pi16(a, c);
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_mm_slli_pi32(a, c);
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_mm_slli_si64(a, c);
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_mm_srli_pi16(a, c);
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_mm_srli_pi32(a, c);
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_mm_srli_si64(a, c);
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_mm_srai_pi16(a, c);
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_mm_srai_pi32(a, c);
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}
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2016-03-23 19:15:10 +08:00
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// CHECK: "target-features"="+mmx,+sse,+x87"
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