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Use patterns to remove some duplicate instructions. 

llvm-svn: 198550
This commit is contained in:
Craig Topper 2014-01-05 06:55:48 +00:00
parent 8db6e7a972
commit d9e1669d1c
2 changed files with 7 additions and 11 deletions
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14
llvm/lib/Target/X86/X86InstrSSE.td
View File

@ -4879,14 +4879,12 @@ def MOVPQI2QImr : S2I<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src),
//===---------------------------------------------------------------------===//
// Store / copy lower 64-bits of a XMM register.
//
def VMOVLQ128mr : VS2I<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src),
"movq\t{$src, $dst|$dst, $src}",
[(int_x86_sse2_storel_dq addr:$dst, VR128:$src)]>, VEX,
Sched<[WriteStore]>;
def MOVLQ128mr : S2I<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src),
"movq\t{$src, $dst|$dst, $src}",
[(int_x86_sse2_storel_dq addr:$dst, VR128:$src)],
IIC_SSE_MOVDQ>, Sched<[WriteStore]>;
let Predicates = [UseAVX] in
def : Pat<(int_x86_sse2_storel_dq addr:$dst, VR128:$src),
(VMOVPQI2QImr addr:$dst, VR128:$src)>;
let Predicates = [UseSSE2] in
def : Pat<(int_x86_sse2_storel_dq addr:$dst, VR128:$src),
(MOVPQI2QImr addr:$dst, VR128:$src)>;
let isCodeGenOnly = 1, AddedComplexity = 20 in {
def VMOVZQI2PQIrm : I<0x7E, MRMSrcMem, (outs VR128:$dst), (ins i64mem:$src),

4
llvm/utils/TableGen/X86RecognizableInstr.cpp
View File

@ -509,9 +509,7 @@ RecognizableInstr::filter_ret RecognizableInstr::filter() const {
// Special cases.
if (Name == "MOVPQI2QImr" ||
Name == "VMOVPQI2QImr" ||
Name == "VMASKMOVDQU64")
if (Name == "VMASKMOVDQU64")
return FILTER_WEAK;
// XACQUIRE and XRELEASE reuse REPNE and REP respectively.