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Reapply last harmless part of r112934, the pattern fragment to match X86Unpcklpd

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113009 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2010-09-03 20:44:26 +00:00
parent 2a4460606e
commit 190d0a54c1
1 changed files with 7 additions and 0 deletions
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7
lib/Target/X86/X86InstrSSE.td
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@ -5819,6 +5819,13 @@ def : Pat<(v2i64 (X86Movlhps VR128:$src1, VR128:$src2)),
def : Pat<(v2f64 (X86Movlhpd VR128:$src1,
(scalar_to_vector (loadf64 addr:$src2)))),
(MOVHPDrm VR128:$src1, addr:$src2)>;
// FIXME: Instead of X86Unpcklpd, there should be a X86Movlhpd here, the problem
// is during lowering, where it's not possible to recognize the load fold cause
// it has two uses through a bitcast. One use disappears at isel time and the
// fold opportunity reappears.
def : Pat<(v2f64 (X86Unpcklpd VR128:$src1,
(scalar_to_vector (loadf64 addr:$src2)))),
(MOVHPDrm VR128:$src1, addr:$src2)>;
// Shuffle with MOVSS
def : Pat<(v4f32 (X86Movss VR128:$src1, (scalar_to_vector FR32:$src2))),