From f21a2f15aa967f16c2b8c71da3009c583890a059 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 12 Feb 2010 11:08:26 +0000 Subject: [PATCH] Reverse the order for collecting the parts of an addrec. The order doesn't matter, except that ScalarEvolution tends to need less time to fold the results this way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95979 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/LoopStrengthReduce.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 73d3f9db896..ccb00f14bc8 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -1902,10 +1902,10 @@ static void CollectSubexprs(const SCEV *S, const SCEVConstant *C, } else if (const SCEVAddRecExpr *AR = dyn_cast(S)) { // Split a non-zero base out of an addrec. if (!AR->getStart()->isZero()) { - CollectSubexprs(AR->getStart(), C, Ops, SE); CollectSubexprs(SE.getAddRecExpr(SE.getIntegerSCEV(0, AR->getType()), AR->getStepRecurrence(SE), AR->getLoop()), C, Ops, SE); + CollectSubexprs(AR->getStart(), C, Ops, SE); return; } } else if (const SCEVMulExpr *Mul = dyn_cast(S)) { -- 2.34.1