I wonder if this loop fusion pass further entrenches LLVM's C/ C++-style model where non-terminating, non-side-effecting loops are UB? https://reviews.llvm.org/rL358607 (my understanding is that this kind of optimization is the reason for that UB in the first place)
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Replying to @pcwalton @johnregehr
Honestly narrow set of cases in "general software" that are noticeably improved.
1 reply 0 retweets 1 like
Replying to @echristo @johnregehr
Yeah, I certainly believe that.
2:52 PM - 22 Apr 2019
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