rnk added a subscriber: rnk.
rnk accepted this revision.
rnk added a reviewer: rnk.
rnk added a comment.
This revision is now accepted and ready to land.
lgtm
To be clear, loop unrolling just lowers its size threshold when -Os is on:
// Apply size attributes
if (L->getHeader()->getParent()->optForSize()) {
UP.Threshold = UP.OptSizeThreshold;
UP.PartialThreshold = UP.PartialOptSizeThreshold;
}
So this does more than enabling loop unrolling when pragmas are present.
However, it that behavior is wrong then we should fix it in LLVM.
Repository:
rL LLVM
http://reviews.llvm.org/D19827
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