Dan Gohman 668a0ff5ef Fix a bug in x86's PreprocessForRMW logic that was exposed
by aggressive chain operand optimization. UpdateNodeOperands
does not modify the node in place if it would result in
a node identical to an existing node.

llvm-svn: 78297
2009-08-06 09:22:57 +00:00
..
2009-08-05 04:26:05 +00:00
2009-06-12 05:39:02 +00:00
2009-06-23 22:11:37 +00:00