Joseph Tremoulet 6f406d4f02 [InstCombine] Avoid iteration/mutation conflict ...

Summary:
When iterating users of a multiply in processUMulZExtIdiom, the
call to setOperand in the truncation case may replace the use
being visited; make sure the iterator has been advanced before
doing that replacement.

Reviewers: majnemer, davide

Reviewed By: davide

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D48192

llvm-svn: 334844

2018-06-15 16:52:40 +00:00

199 KiB

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