Evgeniy Stepanov df9dcaf1ee [safestack] Fix assertion failure in stack coloring.
This is a fix for PR30318.

Clang may generate IR where an alloca is already live when entering a
BB with lifetime.start. In this case, conservatively extend the
alloca lifetime all the way back to the block entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281784 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 22:04:10 +00:00
..
2016-06-29 20:37:43 +00:00