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[X86] Disable movsq/stosq/scasqcmpsq/lodsq parsing in 64-bit mode.

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llvm-svn: 322352
This commit is contained in:
Craig Topper 2018-01-12 05:38:14 +00:00
parent b7e38c5c8a
commit 2a983cee68
1 changed files with 10 additions and 5 deletions
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15
lib/Target/X86/X86InstrInfo.td
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@ -1376,7 +1376,8 @@ def MOVSW : I<0xA5, RawFrmDstSrc, (outs), (ins dstidx16:$dst, srcidx16:$src),
def MOVSL : I<0xA5, RawFrmDstSrc, (outs), (ins dstidx32:$dst, srcidx32:$src),
"movs{l|d}\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize32;
def MOVSQ : RI<0xA5, RawFrmDstSrc, (outs), (ins dstidx64:$dst, srcidx64:$src),
"movsq\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
"movsq\t{$src, $dst|$dst, $src}", [], IIC_MOVS>,
Requires<[In64BitMode]>;
}
// These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
@ -1391,7 +1392,8 @@ def STOSL : I<0xAB, RawFrmDst, (outs), (ins dstidx32:$dst),
"stos{l|d}\t{%eax, $dst|$dst, eax}", [], IIC_STOS>, OpSize32;
let Defs = [RDI], Uses = [RAX,RDI,EFLAGS] in
def STOSQ : RI<0xAB, RawFrmDst, (outs), (ins dstidx64:$dst),
"stosq\t{%rax, $dst|$dst, rax}", [], IIC_STOS>;
"stosq\t{%rax, $dst|$dst, rax}", [], IIC_STOS>,
Requires<[In64BitMode]>;
// These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
let Defs = [EDI,EFLAGS], Uses = [AL,EDI,EFLAGS] in
@ -1405,7 +1407,8 @@ def SCASL : I<0xAF, RawFrmDst, (outs), (ins dstidx32:$dst),
"scas{l|d}\t{$dst, %eax|eax, $dst}", [], IIC_SCAS>, OpSize32;
let Defs = [EDI,EFLAGS], Uses = [RAX,EDI,EFLAGS] in
def SCASQ : RI<0xAF, RawFrmDst, (outs), (ins dstidx64:$dst),
"scasq\t{$dst, %rax|rax, $dst}", [], IIC_SCAS>;
"scasq\t{$dst, %rax|rax, $dst}", [], IIC_SCAS>,
Requires<[In64BitMode]>;
// These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
let Defs = [EDI,ESI,EFLAGS], Uses = [EDI,ESI,EFLAGS] in {
@ -1416,7 +1419,8 @@ def CMPSW : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx16:$dst, srcidx16:$src),
def CMPSL : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx32:$dst, srcidx32:$src),
"cmps{l|d}\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize32;
def CMPSQ : RI<0xA7, RawFrmDstSrc, (outs), (ins dstidx64:$dst, srcidx64:$src),
"cmpsq\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
"cmpsq\t{$dst, $src|$src, $dst}", [], IIC_CMPS>,
Requires<[In64BitMode]>;
}
} // SchedRW
@ -2077,7 +2081,8 @@ def LODSL : I<0xAD, RawFrmSrc, (outs), (ins srcidx32:$src),
"lods{l|d}\t{$src, %eax|eax, $src}", [], IIC_LODS>, OpSize32;
let Defs = [RAX,ESI], Uses = [ESI,EFLAGS] in
def LODSQ : RI<0xAD, RawFrmSrc, (outs), (ins srcidx64:$src),
"lodsq\t{$src, %rax|rax, $src}", [], IIC_LODS>;
"lodsq\t{$src, %rax|rax, $src}", [], IIC_LODS>,
Requires<[In64BitMode]>;
}
let SchedRW = [WriteSystem] in {