diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolutionExpander.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolutionExpander.cpp b/llvm/lib/Analysis/ScalarEvolutionExpander.cpp index 69507beeaae..e7fe672ad31 100644 --- a/llvm/lib/Analysis/ScalarEvolutionExpander.cpp +++ b/llvm/lib/Analysis/ScalarEvolutionExpander.cpp @@ -955,7 +955,8 @@ bool SCEVExpander::hoistIVInc(Instruction *IncV, Instruction *InsertPos) { // InsertPos must itself dominate IncV so that IncV's new position satisfies // its existing users. - if (!SE.DT->dominates(InsertPos->getParent(), IncV->getParent())) + if (isa<PHINode>(InsertPos) + || !SE.DT->dominates(InsertPos->getParent(), IncV->getParent())) return false; // Check that the chain of IV operands leading back to Phi can be hoisted. |
