LoopUnrollPass: Use variable "Threshold" instead of "CurrentThreshold" when
reducing unroll count, otherwise the reduced unroll count is not taking
the "OptimizeForSize" attribute into account.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154007 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopUnrollPass.cpp b/lib/Transforms/Scalar/LoopUnrollPass.cpp
index 22dbfe3..09a186f 100644
--- a/lib/Transforms/Scalar/LoopUnrollPass.cpp
+++ b/lib/Transforms/Scalar/LoopUnrollPass.cpp
@@ -197,13 +197,13 @@
}
if (TripCount) {
// Reduce unroll count to be modulo of TripCount for partial unrolling
- Count = CurrentThreshold / LoopSize;
+ Count = Threshold / LoopSize;
while (Count != 0 && TripCount%Count != 0)
Count--;
}
else if (UnrollRuntime) {
// Reduce unroll count to be a lower power-of-two value
- while (Count != 0 && Size > CurrentThreshold) {
+ while (Count != 0 && Size > Threshold) {
Count >>= 1;
Size = LoopSize*Count;
}