Switch ComputeTopDownOrdering over to using a densemap. This speeds up
authorChris Lattner <sabre@nondot.org>
Sat, 3 Feb 2007 01:12:36 +0000 (01:12 +0000)
committerChris Lattner <sabre@nondot.org>
Sat, 3 Feb 2007 01:12:36 +0000 (01:12 +0000)
commit7971514755a08ec156a1b9c0f7f05d67919c56b7
tree2f4d54b563005841782235a52658744df3d2ac67
parent865c6698db64c560f3f644507b925703a40ec6a4
Switch ComputeTopDownOrdering over to using a densemap.  This speeds up
isel as a whole by 3.3%.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33809 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp