[llvm-commits] [llvm] r80271 - /llvm/trunk/lib/Target/X86/X86InstrInfo.td

[Dan Gohman]

Author: djg
Date: Thu Aug 27 13:16:24 2009
New Revision: 80271

URL: http://llvm.org/viewvc/llvm-project?rev=80271&view=rev
Log:
Don't mark CMOV_GR8 as two-address, or commutable, since it's a pseudo.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.td

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=80271&r1=80270&r2=80271&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Thu Aug 27 13:16:24 2009
@@ -1034,19 +1034,19 @@
 
 // Conditional moves
 let Uses = [EFLAGS] in {
-let isCommutable = 1 in {
 
 // X86 doesn't have 8-bit conditional moves. Use a customDAGSchedInserter to
 // emit control flow. An alternative to this is to mark i8 SELECT as Promote,
 // however that requires promoting the operands, and can induce additional
 // i8 register pressure.
-let usesCustomDAGSchedInserter = 1 in
+let usesCustomDAGSchedInserter = 1, isTwoAddress = 0 in
 def CMOV_GR8 : I<0, Pseudo,
                  (outs GR8:$dst), (ins GR8:$src1, GR8:$src2, i8imm:$cond),
                  "#CMOV_GR8 PSEUDO!",
                  [(set GR8:$dst, (X86cmov GR8:$src1, GR8:$src2,
                                           imm:$cond, EFLAGS))]>;
 
+let isCommutable = 1 in {
 def CMOVB16rr : I<0x42, MRMSrcReg,       // if <u, GR16 = GR16
                   (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                   "cmovb\t{$src2, $dst|$dst, $src2}",