tree bca4dc8dcbaeda24c3c1384f395af00eab255bad
parent 7bafeda2847e5bc8a30b760e662f81b1dd754ee0
author alan-baker <alanbaker@google.com> 1564431643 -0400
committer GitHub <noreply@github.com> 1564431643 -0400
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Don't move debug or decorations when folding (#2772)

Fixes #2764

* Don't replace all uses when simplifying instructions, instead only
update non-debug, non-decoration uses
  * added a test
* Add a new version of RAUW that takes a predicate to decide whether to
replace the use or not
  * used in simplification pass