diff options
Diffstat (limited to 'llvm/lib/Analysis/IVUsers.cpp')
| -rw-r--r-- | llvm/lib/Analysis/IVUsers.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/lib/Analysis/IVUsers.cpp b/llvm/lib/Analysis/IVUsers.cpp index ecb7df80cf1..543e017fc9d 100644 --- a/llvm/lib/Analysis/IVUsers.cpp +++ b/llvm/lib/Analysis/IVUsers.cpp @@ -121,11 +121,11 @@ static bool getSCEVStartAndStride(const SCEV *&SH, Loop *L, Loop *UseLoop, Start = SE->getAddExpr(Start, AddRecStart); - // If stride is an instruction, make sure it dominates the loop preheader. + // If stride is an instruction, make sure it properly dominates the header. // Otherwise we could end up with a use before def situation. if (!isa<SCEVConstant>(AddRecStride)) { - BasicBlock *Preheader = L->getLoopPreheader(); - if (!AddRecStride->dominates(Preheader, DT)) + BasicBlock *Header = L->getHeader(); + if (!AddRecStride->properlyDominates(Header, DT)) return false; DEBUG(errs() << "[" << L->getHeader()->getName() |
