LSR, one of the new Cost::isLoser() checks did not get merged in the previous checkin.
llvm-svn: 140583
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 1e5b56b..0ad9fc3 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -745,9 +745,13 @@
// Add the step value register, if it needs one.
// TODO: The non-affine case isn't precisely modeled here.
- if (!AR->isAffine() || !isa<SCEVConstant>(AR->getOperand(1)))
- if (!Regs.count(AR->getOperand(1)))
+ if (!AR->isAffine() || !isa<SCEVConstant>(AR->getOperand(1))) {
+ if (!Regs.count(AR->getOperand(1))) {
RateRegister(AR->getOperand(1), Regs, L, SE, DT);
+ if (isLoser())
+ return;
+ }
+ }
}
++NumRegs;