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Commit 4b6fd48b authored by Jakob Stoklund Olesen's avatar Jakob Stoklund Olesen
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Teach RemoveCopyByCommutingDef to check all aliases, not just subregisters. 

This caused a miscompilation in WebKit where %RAX had conflicting defs when
RemoveCopyByCommutingDef was commuting a %EAX use.

llvm-svn: 112751
parent b92555c3
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