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

[Marina Yatsina via llvm-commits]

myatsina updated this revision to Diff 66280.
myatsina added a comment.

Update code using clearance > Pref..
Updated Pref to 128. My runs show it's slightly better than 64.


Repository:
  rL LLVM

https://reviews.llvm.org/D22466

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

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