diff options
Diffstat (limited to 'contrib/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp')
| -rw-r--r-- | contrib/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/contrib/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp b/contrib/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp index e26762639c13..ff49d83f25c5 100644 --- a/contrib/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp +++ b/contrib/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp @@ -1,9 +1,8 @@ //===-- LoopUnrollAndJam.cpp - Loop unrolling utilities -------------------===// // -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // @@ -198,8 +197,8 @@ LoopUnrollResult llvm::UnrollAndJamLoop( if (TripMultiple == 1 || TripMultiple % Count != 0) { if (!UnrollRuntimeLoopRemainder(L, Count, /*AllowExpensiveTripCount*/ false, /*UseEpilogRemainder*/ true, - UnrollRemainder, LI, SE, DT, AC, true, - EpilogueLoop)) { + UnrollRemainder, /*ForgetAllSCEV*/ false, + LI, SE, DT, AC, true, EpilogueLoop)) { LLVM_DEBUG(dbgs() << "Won't unroll-and-jam; remainder loop could not be " "generated when assuming runtime trip count\n"); return LoopUnrollResult::Unmodified; @@ -301,7 +300,7 @@ LoopUnrollResult llvm::UnrollAndJamLoop( for (Instruction &I : *BB) if (!isa<DbgInfoIntrinsic>(&I)) if (const DILocation *DIL = I.getDebugLoc()) { - auto NewDIL = DIL->cloneWithDuplicationFactor(Count); + auto NewDIL = DIL->cloneByMultiplyingDuplicationFactor(Count); if (NewDIL) I.setDebugLoc(NewDIL.getValue()); else @@ -539,12 +538,14 @@ LoopUnrollResult llvm::UnrollAndJamLoop( MergeBlocks.insert(ForeBlocksLast.begin(), ForeBlocksLast.end()); MergeBlocks.insert(SubLoopBlocksLast.begin(), SubLoopBlocksLast.end()); MergeBlocks.insert(AftBlocksLast.begin(), AftBlocksLast.end()); + DomTreeUpdater DTU(DT, DomTreeUpdater::UpdateStrategy::Eager); while (!MergeBlocks.empty()) { BasicBlock *BB = *MergeBlocks.begin(); BranchInst *Term = dyn_cast<BranchInst>(BB->getTerminator()); if (Term && Term->isUnconditional() && L->contains(Term->getSuccessor(0))) { BasicBlock *Dest = Term->getSuccessor(0); - if (BasicBlock *Fold = foldBlockIntoPredecessor(Dest, LI, SE, DT)) { + BasicBlock *Fold = Dest->getUniquePredecessor(); + if (MergeBlockIntoPredecessor(Dest, &DTU, LI)) { // Don't remove BB and add Fold as they are the same BB assert(Fold == BB); (void)Fold; |