[PATCH] D120908: [FuncSpec] Enable function specialize for a constant range of arguments.

[Alexandros Lamprineas via Phabricator via llvm-commits]

labrinea added a comment.

My understanding is that function specialization of such constant arguments is controlled by the option `-function-specialization-for-literal-constant`. That is disabled by default as it increases compilation times. I measured how it affects instruction count using perf when compiling the llvm test suite. It was generally neutral except for the benchmark SPASS which was regressed by 4%.


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https://reviews.llvm.org/D120908