From 6151f672854f59743aeb34019a6926259dec9933 Mon Sep 17 00:00:00 2001 From: Andreas Bolka Date: Thu, 6 Aug 2009 03:10:33 +0000 Subject: [PATCH] Simplify the ZIV tester to the max. As suggested by Nick Lewycky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78277 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/LoopDependenceAnalysis.cpp | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/lib/Analysis/LoopDependenceAnalysis.cpp b/lib/Analysis/LoopDependenceAnalysis.cpp index 10a6a8eb06f..eb8ea0ebdb0 100644 --- a/lib/Analysis/LoopDependenceAnalysis.cpp +++ b/lib/Analysis/LoopDependenceAnalysis.cpp @@ -144,9 +144,8 @@ LoopDependenceAnalysis::DependenceResult LoopDependenceAnalysis::analyseZIV(const SCEV *A, const SCEV *B, Subscript *S) const { - assert(isZIVPair(A, B)); - const SCEV *diff = SE->getMinusSCEV(A, B); - return diff->isZero() ? Dependent : Independent; + assert(isZIVPair(A, B) && "Attempted to ZIV-test non-ZIV SCEVs!"); + return A == B ? Dependent : Independent; } LoopDependenceAnalysis::DependenceResult