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Mark MOVZX16/MOVSX16 as neverHasSideEffects/mayLoad

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llvm-svn: 160953
This commit is contained in:
Craig Topper 2012-07-30 07:14:07 +00:00
parent 19fc5055ea
commit f374fd0e17
1 changed files with 6 additions and 0 deletions
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6
lib/Target/X86/X86InstrExtension.td
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@ -39,12 +39,15 @@ let neverHasSideEffects = 1 in {
// Sign/Zero extenders
let neverHasSideEffects = 1 in {
def MOVSX16rr8 : I<0xBE, MRMSrcReg, (outs GR16:$dst), (ins GR8:$src),
"movs{bw|x}\t{$src, $dst|$dst, $src}", [], IIC_MOVSX_R16_R8>,
TB, OpSize;
let mayLoad = 1 in
def MOVSX16rm8 : I<0xBE, MRMSrcMem, (outs GR16:$dst), (ins i8mem:$src),
"movs{bw|x}\t{$src, $dst|$dst, $src}", [], IIC_MOVSX_R16_M8>,
TB, OpSize;
} // neverHasSideEffects = 1
def MOVSX32rr8 : I<0xBE, MRMSrcReg, (outs GR32:$dst), (ins GR8:$src),
"movs{bl|x}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, (sext GR8:$src))], IIC_MOVSX>, TB;
@ -59,12 +62,15 @@ def MOVSX32rm16: I<0xBF, MRMSrcMem, (outs GR32:$dst), (ins i16mem:$src),
[(set GR32:$dst, (sextloadi32i16 addr:$src))], IIC_MOVSX>,
TB;
let neverHasSideEffects = 1 in {
def MOVZX16rr8 : I<0xB6, MRMSrcReg, (outs GR16:$dst), (ins GR8:$src),
"movz{bw|x}\t{$src, $dst|$dst, $src}", [], IIC_MOVZX_R16_R8>,
TB, OpSize;
let mayLoad = 1 in
def MOVZX16rm8 : I<0xB6, MRMSrcMem, (outs GR16:$dst), (ins i8mem:$src),
"movz{bw|x}\t{$src, $dst|$dst, $src}", [], IIC_MOVZX_R16_M8>,
TB, OpSize;
} // neverHasSideEffects = 1
def MOVZX32rr8 : I<0xB6, MRMSrcReg, (outs GR32:$dst), (ins GR8 :$src),
"movz{bl|x}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, (zext GR8:$src))], IIC_MOVZX>, TB;