[PATCH] D28489: [CodeGen] Generalize MacroFusion for any instructions pair
Evandro Menezes via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jan 9 15:22:22 PST 2017
evandro added a comment.
In https://reviews.llvm.org/D28489#640575, @MatzeB wrote:
> Have you checked the effects for compiletime? This will check every edge in the schedule graph, I wonder if we shouldn't rather delegate the whole search to the target so it can restrict this to the actually interesting instructions instead of checking every edge.
At least on a rather fast x86 machine, any difference in the compile time was buried below the noise level.
Repository:
rL LLVM
https://reviews.llvm.org/D28489
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