commit 870b80722f7ce3232dd45e95cff663d177e0acc0
author Evan Cheng <evan.cheng@apple.com> Sun Mar 01 02:03:43 2009 +0000
committer Evan Cheng <evan.cheng@apple.com> Sun Mar 01 02:03:43 2009 +0000
tree a0a428b5e0b242fc7933c68473a838892e767434
parent 890484984bd0d3a5f9d80808b0d251424c7ddf7a

Minor optimization:

Look for situations like this:                                                                                                                                                              
%reg1024<def> = MOV r1                                                                                                                                                                      
%reg1025<def> = MOV r0                                                                                                                                                                      
%reg1026<def> = ADD %reg1024, %reg1025                                                                                                                                                      
r0            = MOV %reg1026                                                                                                                                                                
Commute the ADD to hopefully eliminate an otherwise unavoidable copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65752 91177308-0d34-0410-b5e6-96231b3b80d8