[PATCH] D128393: [RISCV] Add macrofusion infrastructure and one example usage.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
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This adds the macrofusion plumbing and support fusing LUI+ADDI(W).

This is similar to D73643 <https://reviews.llvm.org/D73643>, but handles a different case. Other cases
can be added in the future.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D128393

Files:
  llvm/lib/Target/RISCV/CMakeLists.txt
  llvm/lib/Target/RISCV/RISCV.td
  llvm/lib/Target/RISCV/RISCVMacroFusion.cpp
  llvm/lib/Target/RISCV/RISCVMacroFusion.h
  llvm/lib/Target/RISCV/RISCVSubtarget.cpp
  llvm/lib/Target/RISCV/RISCVSubtarget.h
  llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
  llvm/test/CodeGen/RISCV/macro-fusion-lui-addi.ll

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