Pull in r322325 from upstream llvm trunk (by Matthias Braun):

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PeepholeOpt cleanup/refactor; NFC

  - Less unnecessary use of `auto`
  - Add early `using RegSubRegPair(AndIdx) =` to avoid countless
    `TargetInstrInfo::` qualifications.
  - Use references instead of pointers where possible.
  - Remove unused parameters.
  - Rewrite the CopyRewriter class hierarchy:
     - Pull out uncoalescable copy rewriting functionality into
       PeepholeOptimizer class.
     - Use an abstract base class to make it clear that rewriters are
       independent.
  - Remove unnecessary \brief in doxygen comments.
  - Remove unused constructor and method from ValueTracker.
  - Replace UseAdvancedTracking of ValueTracker with DisableAdvCopyOpt
    use.

Even though upstream marked this as "No Functional Change", it does
contain some functional changes, and these fix a compiler hang for one
particular source file in the devel/godot port.

PR:		228261
MFC after:	3 days

...

This commit is contained in:

Dimitry Andric 2018-05-17 14:38:58 +00:00

parent 2db8dbe53a

commit 54f4b9a61f

Notes: svn2git 2020-12-20 02:59:44 +00:00

svn path=/head/; revision=333715

1 changed files with 370 additions and 440 deletions

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contrib/llvm/lib/CodeGen/PeepholeOptimizer.cpp

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