[PATCH] D28489: [CodeGen] Generalize MacroFusion for any instructions pair

[Evandro Menezes via Phabricator via llvm-commits]

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