Transform code like:
authorChris Lattner <sabre@nondot.org>
Sat, 21 Oct 2006 05:43:30 +0000 (05:43 +0000)
committerChris Lattner <sabre@nondot.org>
Sat, 21 Oct 2006 05:43:30 +0000 (05:43 +0000)
commit2d47bd937c13556ace07b2b2daf4dfe75f4e1e90
tree8bdebeb4752dc6de96b466b78aeadb6727278ffc
parent879d09cf130f3760a08865913c04d9ff328fad5f
Transform code like:

  jle FOO
  jmp BAR
BAR:

into:

  jle FOO
BAR:

... whoa!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31098 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/BranchFolding.cpp