Lang Hames 551662bf5d During MachineCopyPropagation a register may be the source operand of multiple ...

copies being considered for removal. Make sure to track all of the copies,
rather than just the most recent encountered, by holding a DenseSet instead of
an unsigned in SrcMap.

No test case - couldn't reduce something with a sane size.

llvm-svn: 153487

2012-03-27 00:44:47 +00:00

11 KiB

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