maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
304,251 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

1 Commits

Author SHA1 Message Date
David Majnemer 6ee8d17bc6 ValueTracking: ComputeNumSignBits should tolerate misshapen phi nodes 
PHI nodes can have zero operands in the middle of a transform.  It is
expected that utilities in Analysis don't freak out when this happens.

Note that it is considered invalid to allow these misshapen phi nodes to
make it to another pass.

This fixes PR22086.

llvm-svn: 225126
 2015-01-04 07:06:53 +00:00