Nate Begeman cbd88adea6 Fix a problem with DAGCombine on 64b targets where folding ... extracts + build_vector into a shuffle would fail, because the type of the new build_vector would not be legal. Try harder to create a legal build_vector type. Note: this will be totally irrelevant once vector_shuffle no longer takes a build_vector for shuffle mask. New: _foo: xorps %xmm0, %xmm0 xorps %xmm1, %xmm1 subps %xmm1, %xmm1 mulps %xmm0, %xmm1 addps %xmm0, %xmm1 movaps %xmm1, 0 Old: _foo: xorps %xmm0, %xmm0 movss %xmm0, %xmm1 xorps %xmm2, %xmm2 unpcklps %xmm1, %xmm2 pshufd $80, %xmm1, %xmm1 unpcklps %xmm1, %xmm2 pslldq $16, %xmm2 pshufd $57, %xmm2, %xmm1 subps %xmm0, %xmm1 mulps %xmm0, %xmm1 addps %xmm0, %xmm1 movaps %xmm1, 0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65791 91177308-0d34-0410-b5e6-96231b3b80d8		2009-03-01 23:44:07 +00:00
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Alpha
ARM	Last commit accidentially deleted this code.	2009-02-28 06:02:14 +00:00
CBackend
CellSPU	Used "-enable-unsafe-fp-math" to allow this transformation - (a * b -c) = c - a *b.	2009-01-31 06:50:54 +00:00
CPP
Generic	bug 3610: Test case.	2009-02-22 15:54:44 +00:00
IA64
Mips
PowerPC	Private linkage support for PPC / Darwin.	2009-01-25 06:32:01 +00:00
SPARC
X86	Fix a problem with DAGCombine on 64b targets where folding	2009-03-01 23:44:07 +00:00
XCore