From 3d8586eb6384f22984e8c519ea9742eac68c9724 Mon Sep 17 00:00:00 2001 From: Gabor Greif Date: Thu, 22 Jul 2010 11:07:46 +0000 Subject: [PATCH] cache dereferenced iterator git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109093 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/RegionInfo.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/lib/Analysis/RegionInfo.cpp b/lib/Analysis/RegionInfo.cpp index 589cc471def..4c07712abc4 100644 --- a/lib/Analysis/RegionInfo.cpp +++ b/lib/Analysis/RegionInfo.cpp @@ -315,10 +315,11 @@ void Region::clearNodeCache() { bool RegionInfo::isCommonDomFrontier(BasicBlock *BB, BasicBlock *entry, BasicBlock *exit) const { - for (pred_iterator PI = pred_begin(BB), PE = pred_end(BB); PI != PE; ++PI) - if (DT->dominates(entry, *PI) && !DT->dominates(exit, *PI)) + for (pred_iterator PI = pred_begin(BB), PE = pred_end(BB); PI != PE; ++PI) { + BasicBlock *P = *PI; + if (DT->dominates(entry, P) && !DT->dominates(exit, P)) return false; - + } return true; }