From 8f3359a4b396d3f1a7b2726e02f199be74c62e4c Mon Sep 17 00:00:00 2001 From: Hal Finkel Date: Mon, 11 Feb 2013 23:02:09 +0000 Subject: BBVectorize: Omit unnecessary entries in PairableInstUsers This map is queried only for instructions in pairs of pairable instructions; so make sure that only pairs of pairable instructions are added to the map. This gives a 3.5% speedup on the csa.ll test case from PR15222. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174914 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Vectorize/BBVectorize.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/Transforms/Vectorize/BBVectorize.cpp b/lib/Transforms/Vectorize/BBVectorize.cpp index bf8fca0..b14d91d 100644 --- a/lib/Transforms/Vectorize/BBVectorize.cpp +++ b/lib/Transforms/Vectorize/BBVectorize.cpp @@ -1390,8 +1390,10 @@ namespace { (void) trackUsesOfI(Users, WriteSet, I, J); for (DenseSet::iterator U = Users.begin(), E = Users.end(); - U != E; ++U) + U != E; ++U) { + if (IsInPair.find(*U) == IsInPair.end()) continue; PairableInstUsers.insert(ValuePair(I, *U)); + } } } -- cgit v1.1