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Commit Graph

Author	SHA1	Message	Date
Eli Friedman	aac35b3fbb	PR9420; an instruction before an unreachable is guaranteed not to have any reachable uses, but there still might be uses in dead blocks. Use the standard solution of replacing all the uses with undef. This is a rare case because it's very sensitive to phase ordering in SimplifyCFG. llvm-svn: 127299	2011-03-09 00:48:33 +00:00

Author

SHA1

Message

Date

Eli Friedman

aac35b3fbb

PR9420; an instruction before an unreachable is guaranteed not to have any

reachable uses, but there still might be uses in dead blocks.  Use the
standard solution of replacing all the uses with undef.  This is
a rare case because it's very sensitive to phase ordering in SimplifyCFG.

llvm-svn: 127299

2011-03-09 00:48:33 +00:00

1 Commits