[PATCH] D142458: [SPARC] Implement hooks for conditional branch relaxation

[Koakuma via Phabricator via llvm-commits]

koakuma created this revision.
koakuma added reviewers: jrtc27, dcederman, ro, brad, arsenm, MaskRay.
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Integrate the BranchRelaxation pass to help with relaxing out-of-range conditional branches.

This is mostly of concern for SPARCv9, which uses conditional branches with much smaller range than its v8 counterparts.
(Some large autogenerated code, such as the ones generated by TableGen, already hits this limitation when building in Release)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142458

Files:
  llvm/lib/Target/Sparc/MCTargetDesc/SparcInstPrinter.cpp
  llvm/lib/Target/Sparc/SparcInstrInfo.cpp
  llvm/lib/Target/Sparc/SparcInstrInfo.h
  llvm/lib/Target/Sparc/SparcInstrInfo.td
  llvm/lib/Target/Sparc/SparcMCInstLower.cpp
  llvm/lib/Target/Sparc/SparcTargetMachine.cpp
  llvm/test/CodeGen/SPARC/branches-relax.ll
  llvm/test/CodeGen/SPARC/branches-v9.ll

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