[PATCH] D86519: [SystemZ] New pass for domain reassignment from integer to vector.

[Jonas Paulsson via Phabricator via llvm-commits]

jonpa updated this revision to Diff 297819.
jonpa added a comment.
Herald added a subscriber: pengfei.

Latest improvements (still in progress):

- VirtRegLiveness: A simple MRI-based class for tracking liveness of virtual registers

- LiveClosuresTracker: A class to use when iterating over the function that keeps track of which of the potentially convertible closures are live at the current point.

- Pre scan a closure to see if it spans across a call, in which case it is deemed non-profitable as vector registers are always call-clobbered.

- Run EarlyMachineLICM again afterwards. It would perhaps be possible to adjust insertion points instead when loading immediates.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86519/new/

https://reviews.llvm.org/D86519

Files:
  llvm/lib/Target/SystemZ/CMakeLists.txt
  llvm/lib/Target/SystemZ/SystemZ.h
  llvm/lib/Target/SystemZ/SystemZDomainReassignment.cpp
  llvm/lib/Target/SystemZ/SystemZInstrInfo.cpp
  llvm/lib/Target/SystemZ/SystemZInstrInfo.h
  llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
  llvm/test/CodeGen/SystemZ/buildvector-00.ll
  llvm/test/CodeGen/SystemZ/dag-combine-01.ll
  llvm/test/CodeGen/SystemZ/dag-combine-03.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-01.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-02.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-03.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-04.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-05.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-06.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-07.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-08.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-09.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-10.mir
  llvm/test/CodeGen/SystemZ/domain-reassignment-11.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-12.ll
  llvm/test/CodeGen/SystemZ/domain-reassignment-13.ll
  llvm/test/CodeGen/SystemZ/knownbits.ll
  llvm/test/CodeGen/SystemZ/stack-clash-protection.ll
  llvm/test/CodeGen/SystemZ/subregliveness-04.ll
  llvm/test/CodeGen/SystemZ/tls-08.ll

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