[PATCH] D22466: Avoid false dependencies of undef machine operands

[Marina Yatsina via llvm-commits]

myatsina updated this revision to Diff 67351.
myatsina added a comment.

1. Added a test for the case of true dependency.
2. Fixed a bug in my code exposed by Craig Topper's commit #276393 - some of my lit tests started to fail after his change because I was using the register class that was passed in ExeDepsFix's constructor instead of using the register class of the actual machine instruction operand I want to replace.
3. Fixed additional tests that were added I the meantime.


Repository:
  rL LLVM

https://reviews.llvm.org/D22466

Files:
  lib/CodeGen/ExecutionDepsFix.cpp
  lib/Target/X86/X86InstrInfo.cpp
  test/CodeGen/X86/avx512-cvt.ll
  test/CodeGen/X86/break-false-dep.ll
  test/CodeGen/X86/copy-propagation.ll
  test/CodeGen/X86/half.ll
  test/CodeGen/X86/sse-fsignum.ll
  test/CodeGen/X86/vec_int_to_fp.ll

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