[PATCH] D10975: [x86] extend machine combiner reassociation optimization to SSE scalar adds

[Sanjay Patel]

spatel added reviewers: Gerolf, joker.eph, qcolombet.
spatel added a subscriber: llvm-commits.

This is (I hope) a nearly trivial patch to extend the reassociation optimization of http://reviews.llvm.org/rL240361 (D10460) to SSE scalar FP SP adds in addition to AVX scalar FP SP adds.

With the 'switch' in place, we can trivially add other opcodes and test cases in future patches.


http://reviews.llvm.org/D10975

Files:
  lib/Target/X86/X86InstrInfo.cpp
  test/CodeGen/X86/machine-combiner.ll

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