From 001582833af0cdcac7600ba94d8dd3e7bcdf14f4 Mon Sep 17 00:00:00 2001 From: Craig Topper Date: Tue, 23 Jul 2013 00:15:19 +0000 Subject: [PATCH] Explicitly don't let the asm printer use the clrb/w/l aliases for xor %reg, %reg. 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. llvm-svn: 186900 --- llvm/lib/Target/X86/X86InstrInfo.td | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td index 9eca151..6bc1235 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.td +++ b/llvm/lib/Target/X86/X86InstrInfo.td @@ -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)>; -- 2.7.4