[PATCH] D48629: Do not sext i1 constants when selecting binary ops

[Dragan Mladjenovic via Phabricator via llvm-commits]

draganm created this revision.
draganm added a reviewer: mcrosier.
Herald added subscribers: arichardson, sdardis.

MipsFastISel comparison lowering relies on i1 values allways being 1 or 0 zero extended which can be broken by [X]OR binop. 
I chose to fix it here because it gives a slightly better codegen on MIPS.


Repository:
  rL LLVM

https://reviews.llvm.org/D48629

Files:
  lib/CodeGen/SelectionDAG/FastISel.cpp
  test/CodeGen/Mips/Fast-ISel/xori1.ll
  test/CodeGen/X86/avx512-fsel.ll
  test/CodeGen/X86/pr32256.ll
  test/CodeGen/X86/pr32284.ll

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