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Explicitly don't let the asm printer use the clrb/w/l aliases for xor %reg, %reg.

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It only didn't use it before because it seems InstAlias handling in the asm printer fails to count tied operands so it tried to find an xor with 2 operands instead of the 3 it wfails to count tied.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186900 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2013-07-23 00:15:19 +00:00
parent 19159c1f4c
commit af1d08782b
1 changed files with 4 additions and 4 deletions
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8
lib/Target/X86/X86InstrInfo.td
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@ -1985,10 +1985,10 @@ def : InstAlias<"bt {$imm, $mem|$mem, $imm}",
(BT32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
// clr aliases.
def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg), 0>;
def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg), 0>;
def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg), 0>;
def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg), 0>;
// div and idiv aliases for explicit A register.
def : InstAlias<"div{b}\t{$src, %al|AL, $src}", (DIV8r GR8 :$src)>;