[all-commits] [llvm/llvm-project] bab2cf: [RISCV][GISel] Promote s32 constant shift amounts ...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bab2cf2d01490b3c77daa188ecfa9fd7fd0e7125
      https://github.com/llvm/llvm-project/commit/bab2cf2d01490b3c77daa188ecfa9fd7fd0e7125
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2023-11-10 (Fri, 10 Nov 2023)

  Changed paths:
    M llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
    M llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h
    M llvm/lib/Target/RISCV/RISCVGISel.td
    M llvm/lib/Target/RISCV/RISCVInstrInfoZb.td
    M llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/alu-rv64.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/zba-rv64.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-abs.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-ashr.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-bitreverse.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-bswap.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-div.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-itofp.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-load.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-rem.mir
    M llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-store.mir
    M llvm/test/CodeGen/RISCV/rv64-legal-i32/rv64zba.ll

  Log Message:
  -----------
  [RISCV][GISel] Promote s32 constant shift amounts to s64 on RV64.

This allows us to reuse isel patterns from SelectionDAG.

This is similar to what is done on AArch64.