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Commit Graph

Author	SHA1	Message	Date
Andrew Trick	4442bfe559	Fix 12513: Loop unrolling breaks with indirect branches. Take this opportunity to generalize the indirectbr bailout logic for loop transformations. CFG transformations will never get indirectbr right, and there's no point trying. llvm-svn: 154386	2012-04-10 05:14:42 +00:00
Stepan Dyatkovskiy	f62ffeca88	Fast fix for PR12343: http://llvm.org/bugs/show_bug.cgi?id=12343 We have not trivial way for splitting edges that are goes from indirect branch. We can do it with some tricks, but it should be additionally discussed. And it is still dangerous due to difficulty of indirect branches controlling. Fix forbids this case for unswitching. llvm-svn: 153879	2012-04-02 17:16:45 +00:00

Author

SHA1

Message

Date

Andrew Trick

4442bfe559

Fix 12513: Loop unrolling breaks with indirect branches.

Take this opportunity to generalize the indirectbr bailout logic for
loop transformations. CFG transformations will never get indirectbr
right, and there's no point trying.

llvm-svn: 154386

2012-04-10 05:14:42 +00:00

Stepan Dyatkovskiy

f62ffeca88

Fast fix for PR12343:

http://llvm.org/bugs/show_bug.cgi?id=12343

We have not trivial way for splitting edges that are goes from indirect branch. We can do it with some tricks, but it should be additionally discussed. And it is still dangerous due to difficulty of indirect branches controlling.

Fix forbids this case for unswitching.

llvm-svn: 153879

2012-04-02 17:16:45 +00:00

2 Commits