From a77d588c752bbf5d339f674af50733c10b113d0a Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Mon, 14 Dec 2009 17:10:44 +0000 Subject: [PATCH] Don't bother cleaning up if there's nothing to clean up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91288 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/LoopStrengthReduce.cpp | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 12bb87a77dc..51cb3d66932 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -2754,15 +2754,15 @@ bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) { // After all sharing is done, see if we can adjust the loop to test against // zero instead of counting up to a maximum. This is usually faster. OptimizeLoopCountIV(L); + + // We're done analyzing this loop; release all the state we built up for it. + IVsByStride.clear(); + + // Clean up after ourselves + if (!DeadInsts.empty()) + DeleteTriviallyDeadInstructions(); } - // We're done analyzing this loop; release all the state we built up for it. - IVsByStride.clear(); - - // Clean up after ourselves - if (!DeadInsts.empty()) - DeleteTriviallyDeadInstructions(); - // At this point, it is worth checking to see if any recurrence PHIs are also // dead, so that we can remove them as well. DeleteDeadPHIs(L->getHeader());