[all-commits] [llvm/llvm-project] b6c4ad: [RISCV] Remove x7 from fastcc list. (#96729)

[Yeting Kuo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b6c4ad700b0f5851313f18df89b9da2c27ba3185
      https://github.com/llvm/llvm-project/commit/b6c4ad700b0f5851313f18df89b9da2c27ba3185
  Author: Yeting Kuo <46629943+yetingk at users.noreply.github.com>
  Date:   2024-07-17 (Wed, 17 Jul 2024)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/test/CodeGen/RISCV/fastcc-int.ll
    M llvm/test/CodeGen/RISCV/fastcc-without-f-reg.ll
    M llvm/test/CodeGen/RISCV/rvv/calling-conv-fastcc.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-calling-conv-fastcc.ll

  Log Message:
  -----------
  [RISCV] Remove x7 from fastcc list. (#96729)

Like #93321, this patch also tries to solve the conflict usage of x7 for
fastcc and Zicfilp. But this patch removes x7 from fastcc directly. Its
purpose is to reduce the code complexity of #93321, and we also found
that it at most increase 0.02% instruction count for most benchmarks and
it might be benefit for benchmarks.



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