From 9643ba8123ace3fd0744b1f0be868695ef96b46e Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Fri, 26 Jun 2009 00:19:07 +0000
Subject: [PATCH] tst is also commutable.

llvm-svn: 74236
---
 llvm/lib/Target/ARM/ARMInstrThumb.td | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/ARM/ARMInstrThumb.td b/llvm/lib/Target/ARM/ARMInstrThumb.td
index a4cafef0215c..4968b4a09790 100644
--- a/llvm/lib/Target/ARM/ARMInstrThumb.td
+++ b/llvm/lib/Target/ARM/ARMInstrThumb.td
@@ -548,7 +548,7 @@ def tSXTH  : T1I<(outs tGPR:$dst), (ins tGPR:$src),
                 Requires<[IsThumb, HasV6]>;
 
 // test
-let Defs = [CPSR] in
+let isCommutable = 1, Defs = [CPSR] in
 def tTST  : T1I<(outs), (ins tGPR:$lhs, tGPR:$rhs),
                "tst $lhs, $rhs",
                [(ARMcmpNZ (and tGPR:$lhs, tGPR:$rhs), 0)]>;