Sanjoy Das eda7a86d42 [BypassSlowDivision] Improve our handling of divisions by constants ...

Summary:
Don't bail out on constant divisors for divisions that can be narrowed without
introducing control flow .  This gives us a 32 bit multiply instead of an
emulated 64 bit multiply in the generated PTX assembly.

Reviewers: jlebar

Subscribers: jholewinski, mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D38265

llvm-svn: 314253

2017-09-26 21:54:27 +00:00

17 KiB

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