[llvm-commits] [llvm] r138278 - /llvm/trunk/lib/Target/ARM/ARMInstrThumb.td

[Jim Grosbach]

Author: grosbach
Date: Mon Aug 22 17:00:18 2011
New Revision: 138278

URL: http://llvm.org/viewvc/llvm-project?rev=138278&view=rev
Log:
Temporarilly mark tMUL as not commutable.

It's not playing nicely in the coalescer with the tied operand. Disable
commutability for now while we figure out the deeper fix.

Modified:
    llvm/trunk/lib/Target/ARM/ARMInstrThumb.td

Modified: llvm/trunk/lib/Target/ARM/ARMInstrThumb.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrThumb.td?rev=138278&r1=138277&r2=138278&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrThumb.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrThumb.td Mon Aug 22 17:00:18 2011
@@ -1047,7 +1047,7 @@
 } // neverHasSideEffects
 
 // Multiply register
-let isCommutable = 1 in
+//let isCommutable = 1 in
 def tMUL :                      // A8.6.105 T1
   Thumb1sI<(outs tGPR:$Rd), (ins tGPR:$Rn, tGPR:$Rm), AddrModeNone, 2,
            IIC_iMUL32, "mul", "\t$Rd, $Rn, $Rm", "$Rm = $Rd",