Rework dominator interfaces to handle changes in the post-dominance
authorChris Lattner <sabre@nondot.org>
Wed, 10 Sep 2003 20:37:51 +0000 (20:37 +0000)
committerChris Lattner <sabre@nondot.org>
Wed, 10 Sep 2003 20:37:51 +0000 (20:37 +0000)
commitb884f597d62e8596df0b3856e9ca1b2496f81361
tree4e7f11fd6dc480b86d8a28de6e3f259d295a4bf2
parent706e61ead9b7913098ff3fbf729263a36e01f1b9
Rework dominator interfaces to handle changes in the post-dominance
construction.  Now there may be multiple root blocks, and null is a
special node used to mark the "virtual" exit node of a CFG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8461 91177308-0d34-0410-b5e6-96231b3b80d8
lib/VMCore/Dominators.cpp