diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 2 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 14 |
2 files changed, 10 insertions, 6 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 693189b676..87438d0b6b 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -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))); diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index 5fc0004d51..5fc0a238c3 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -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), |