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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28787 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -664,3 +664,32 @@ e.g. SSE select using and, andnot, or. Various SSE compare translations.
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//===---------------------------------------------------------------------===//
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Add hooks to commute some CMPP operations.
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//===---------------------------------------------------------------------===//
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Implement some missing insert/extract element operations without going through
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the stack. Testcase here:
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CodeGen/X86/vec_ins_extract.ll
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corresponds to this C code:
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typedef float vectorfloat __attribute__((vector_size(16)));
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void test(vectorfloat *F, float f) {
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vectorfloat G = *F + *F;
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*((float*)&G) = f;
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*F = G + G;
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}
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void test2(vectorfloat *F, float f) {
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vectorfloat G = *F + *F;
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((float*)&G)[2] = f;
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*F = G + G;
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}
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void test3(vectorfloat *F, float *f) {
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vectorfloat G = *F + *F;
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*f = ((float*)&G)[2];
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}
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void test4(vectorfloat *F, float *f) {
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vectorfloat G = *F + *F;
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*f = *((float*)&G);
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}
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//===---------------------------------------------------------------------===//
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