From e059ee832ca36d65a5fb87b0ac5bcdb0490b15cb Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Tue, 23 Mar 2010 21:53:22 +0000 Subject: [PATCH] Don't back past debug info intrinsics; SCEVExpander's strategy for ignoring debug info intrinsics everywhere else is to advance past them, and it needs to be consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99332 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/ScalarEvolutionExpander.cpp | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp index 138cdc64cd0..2e18ceac525 100644 --- a/lib/Analysis/ScalarEvolutionExpander.cpp +++ b/lib/Analysis/ScalarEvolutionExpander.cpp @@ -1268,19 +1268,8 @@ Value *SCEVExpander::expand(const SCEV *S) { L = L->getParentLoop()) if (S->isLoopInvariant(L)) { if (!L) break; - if (BasicBlock *Preheader = L->getLoopPreheader()) { + if (BasicBlock *Preheader = L->getLoopPreheader()) InsertPt = Preheader->getTerminator(); - BasicBlock::iterator IP = InsertPt; - // Back past any debug info instructions. Sometimes we inserted - // something earlier before debug info but after any real instructions. - // This should behave the same as if debug info was not present. - while (IP != Preheader->begin()) { - --IP; - if (!isa(IP)) - break; - InsertPt = IP; - } - } } else { // If the SCEV is computable at this level, insert it into the header // after the PHIs (and after any other instructions that we've inserted -- 2.34.1