From f31eba649422082783a19bb6b373f31f10f55de9 Mon Sep 17 00:00:00 2001 From: Alina Sbirlea Date: Wed, 8 May 2019 17:05:36 +0000 Subject: [MemorySSA] Teach LoopSimplify to preserve MemorySSA. Summary: Preserve MemorySSA in LoopSimplify, in the old pass manager, if the analysis is available. Do not preserve it in the new pass manager. Update tests. Subscribers: nemanjai, jlebar, javed.absar, Prazek, kbarton, zzheng, jsji, llvm-commits, george.burgess.iv, chandlerc Tags: #llvm Differential Revision: https://reviews.llvm.org/D60833 llvm-svn: 360270 --- llvm/lib/Transforms/Utils/LoopUnroll.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'llvm/lib/Transforms/Utils/LoopUnroll.cpp') diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp index 9a3c917..d8ac42b 100644 --- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp +++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp @@ -884,11 +884,11 @@ LoopUnrollResult llvm::UnrollLoop(Loop *L, UnrollLoopOptions ULO, LoopInfo *LI, // TODO: That potentially might be compile-time expensive. We should try // to fix the loop-simplified form incrementally. - simplifyLoop(OuterL, DT, LI, SE, AC, PreserveLCSSA); + simplifyLoop(OuterL, DT, LI, SE, AC, nullptr, PreserveLCSSA); } else { // Simplify loops for which we might've broken loop-simplify form. for (Loop *SubLoop : LoopsToSimplify) - simplifyLoop(SubLoop, DT, LI, SE, AC, PreserveLCSSA); + simplifyLoop(SubLoop, DT, LI, SE, AC, nullptr, PreserveLCSSA); } } -- cgit v1.1