tree 795e1c7331514e6f5a7ce5e03405b011826c4bc4
parent 9fc5c83fb7b86862d4a29bf416842a4f1a0084d5
author Chandler Carruth <chandlerc@gmail.com> 1332923907 +0000
committer Chandler Carruth <chandlerc@gmail.com> 1332923907 +0000

Switch to WeakVHs in the value mapper, and aggressively prune dead basic
blocks in the function cloner. This removes the last case of trivially
dead code that I've been seeing in the wild getting inlined, analyzed,
re-inlined, optimized, only to be deleted. Nukes a FIXME from the
cleanup tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153572 91177308-0d34-0410-b5e6-96231b3b80d8