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Use movlpd to: store lower f64 extracted from v2f64.

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Use movhpd to: store upper f64 extracted from v2f64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27382 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-04-03 22:30:54 +00:00
parent 4f91a4c497
commit 20e3ed102b
2 changed files with 10 additions and 6 deletions
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2
lib/Target/X86/X86ISelLowering.cpp
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@ -2712,6 +2712,8 @@ SDOperand X86TargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
return Op;
// UNPCKHPD the element to the lowest double word, then movsd.
// Note if the lower 64 bits of the result of the UNPCKHPD is then stored
// to a f64mem, the whole operation is folded into a single MOVHPDmr.
MVT::ValueType MaskVT = MVT::getIntVectorWithNumElements(4);
std::vector<SDOperand> IdxVec;
IdxVec.push_back(DAG.getConstant(1, MVT::getVectorBaseType(MaskVT)));

14
lib/Target/X86/X86InstrSSE.td
View File

@ -713,12 +713,18 @@ def MOVHPDrm : PDI<0x16, MRMSrcMem, (ops VR128:$dst, VR128:$src1, f64mem:$src2),
def MOVLPSmr : PSI<0x13, MRMDestMem, (ops f64mem:$dst, VR128:$src),
"movlps {$src, $dst|$dst, $src}", []>;
def MOVLPDmr : PDI<0x13, MRMDestMem, (ops f64mem:$dst, VR128:$src),
"movlpd {$src, $dst|$dst, $src}", []>;
"movlpd {$src, $dst|$dst, $src}",
[(store (f64 (vector_extract (v2f64 VR128:$src),
(i32 0))), addr:$dst)]>;
def MOVHPSmr : PSI<0x17, MRMDestMem, (ops f64mem:$dst, VR128:$src),
"movhps {$src, $dst|$dst, $src}", []>;
def MOVHPDmr : PDI<0x17, MRMDestMem, (ops f64mem:$dst, VR128:$src),
"movhpd {$src, $dst|$dst, $src}", []>;
"movhpd {$src, $dst|$dst, $src}",
[(store (f64 (vector_extract
(v2f64 (vector_shuffle VR128:$src, (undef),
UNPCKH_shuffle_mask)), (i32 0))),
addr:$dst)]>;
let isTwoAddress = 1 in {
def MOVLHPSrr : PSI<0x16, MRMSrcReg, (ops VR128:$dst, VR128:$src1, VR128:$src2),
@ -1561,10 +1567,6 @@ def MOVPD2SDrr : SDI<0x10, MRMSrcReg, (ops FR64:$dst, VR128:$src),
"movsd {$src, $dst|$dst, $src}",
[(set FR64:$dst, (vector_extract (v2f64 VR128:$src),
(i32 0)))]>;
def MOVPD2SDmr : SDI<0x10, MRMDestMem, (ops f64mem:$dst, VR128:$src),
"movsd {$src, $dst|$dst, $src}",
[(store (f64 (vector_extract (v2f64 VR128:$src),
(i32 0))), addr:$dst)]>;
def MOVPDI2DIrr : PDI<0x7E, MRMSrcReg, (ops R32:$dst, VR128:$src),
"movd {$src, $dst|$dst, $src}",
[(set R32:$dst, (vector_extract (v4i32 VR128:$src),