diff options
Diffstat (limited to 'lib/Transforms/Scalar/TailDuplication.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/TailDuplication.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/TailDuplication.cpp b/lib/Transforms/Scalar/TailDuplication.cpp index 684b0963..6d05fdf 100644 --- a/lib/Transforms/Scalar/TailDuplication.cpp +++ b/lib/Transforms/Scalar/TailDuplication.cpp @@ -258,7 +258,8 @@ void TailDup::eliminateUnconditionalBranch(BranchInst *Branch) { while (!isa<TerminatorInst>(BBI)) { Instruction *I = BBI++; - bool CanHoist = !I->isTrapping() && !I->mayHaveSideEffects(); + bool CanHoist = I->isSafeToSpeculativelyExecute() && + !I->mayReadFromMemory(); if (CanHoist) { for (unsigned op = 0, e = I->getNumOperands(); op != e; ++op) if (Instruction *OpI = dyn_cast<Instruction>(I->getOperand(op))) |