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this is done

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32424 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-12-11 01:01:03 +00:00
parent a5546fbd10
commit b4115ac8f3
1 changed files with 0 additions and 27 deletions
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27
lib/Target/X86/README-SSE.txt
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@ -527,33 +527,6 @@ Add hooks to commute some CMPP operations.
//===---------------------------------------------------------------------===//
Implement some missing insert/extract element operations without going through
the stack. Testcase here:
CodeGen/X86/vec_ins_extract.ll
corresponds to this C code:
typedef float vectorfloat __attribute__((vector_size(16)));
void test(vectorfloat *F, float f) {
vectorfloat G = *F + *F;
*((float*)&G) = f;
*F = G + G;
}
void test2(vectorfloat *F, float f) {
vectorfloat G = *F + *F;
((float*)&G)[2] = f;
*F = G + G;
}
void test3(vectorfloat *F, float *f) {
vectorfloat G = *F + *F;
*f = ((float*)&G)[2];
}
void test4(vectorfloat *F, float *f) {
vectorfloat G = *F + *F;
*f = *((float*)&G);
}
//===---------------------------------------------------------------------===//
Apply the same transformation that merged four float into a single 128-bit load
to loads from constant pool.