Speed up cycle checking significantly by caching results.
authorDavid Greene <greened@obbligato.org>
Tue, 23 Feb 2010 17:37:50 +0000 (17:37 +0000)
committerDavid Greene <greened@obbligato.org>
Tue, 23 Feb 2010 17:37:50 +0000 (17:37 +0000)
commite3d97c744772c075e11f372548cc8d848d555ee9
treee733d3f990e079ee34fb971aeb3090e4fd30aac1
parent21dc20cbd62e0b4617cad7df947318801eec81e6
Speed up cycle checking significantly by caching results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96956 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/SelectionDAG.cpp