[PATCH] D95125: [WebAssembly] Enable loop unrolling

[Alon Zakai via Phabricator via llvm-commits]

kripken added a comment.

In D95125#2516677 <https://reviews.llvm.org/D95125#2516677>, @tlively wrote:

> I'm inclined to merge this and leave it to users for whom the code size increase is unacceptable to use -Os/-Oz/-fno-unroll-loops to disable it.

Is it possible to do this in -O3 but not -O2 or -O1?

> I'd be curious to see the code size and perf impacts are on the Emscripten benchmark suite, too.

Good idea! Several real-world codebases there that are easy to measure for size and speed. Let me know if I can help.


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https://reviews.llvm.org/D95125