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authorDale Johannesen <dalej@apple.com>2008-04-20 16:58:57 +0000
committerDale Johannesen <dalej@apple.com>2008-04-20 16:58:57 +0000
commita0c8fc6f28808a6b859d45c7e2d3391e3e8d2963 (patch)
tree90a5702b16c7a43b6c2c3fd1fe91c3c1d4e401e3
parent3eaee313937ea4794eb58cc4d286a57ef1727f3c (diff)
(re)fix handling of UGT. Pointed out by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49991 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Analysis/ScalarEvolution.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 32e9e96a6d..0a58f2b629 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -1980,7 +1980,8 @@ SCEVHandle ScalarEvolutionsImpl::ComputeIterationCount(const Loop *L) {
break;
}
case ICmpInst::ICMP_UGT: {
- SCEVHandle TC = HowFarToZero(SE.getMinusSCEV(LHS, RHS), L);
+ SCEVHandle TC = HowManyLessThans(SE.getNotSCEV(LHS),
+ SE.getNotSCEV(RHS), L, false);
if (!isa<SCEVCouldNotCompute>(TC)) return TC;
break;
}