From f374fd0e176539e9b7a536c65f0f1dbaf74bf44f Mon Sep 17 00:00:00 2001 From: Craig Topper Date: Mon, 30 Jul 2012 07:14:07 +0000 Subject: [PATCH] Mark MOVZX16/MOVSX16 as neverHasSideEffects/mayLoad llvm-svn: 160953 --- lib/Target/X86/X86InstrExtension.td | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/Target/X86/X86InstrExtension.td b/lib/Target/X86/X86InstrExtension.td index 776667177d4..2eb454ded21 100644 --- a/lib/Target/X86/X86InstrExtension.td +++ b/lib/Target/X86/X86InstrExtension.td @@ -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;