From: Jim Grosbach <grosbach@apple.com>
Date: Mon, 22 Aug 2011 22:00:18 +0000 (+0000)
Subject: Temporarilly mark tMUL as not commutable.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5e8701002bc53672a4e6a902e385810abe2cf911;p=oota-llvm.git

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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138278 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td
index f58cb34e600..cfc4a5528b0 100644
--- a/lib/Target/ARM/ARMInstrThumb.td
+++ b/lib/Target/ARM/ARMInstrThumb.td
@@ -1047,7 +1047,7 @@ def tMOVSr      : T1I<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iMOVr,
 } // 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",