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Commit 3ea90a7d authored by Owen Anderson's avatar Owen Anderson
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Use information already present in the ValueTable to fast-fail when we know... 

Use information already present in the ValueTable to fast-fail when we know there won't be a value number match.  This speeds up GVN on a case where there are very few redundancies by ~25%.

llvm-svn: 53108
parent 4cab581b
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