[all-commits] [llvm/llvm-project] d490ce: [RISCV] Use mask undisturbed policy when silencing...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d490ce22e93db2e9d57985bc50915e383327911f
      https://github.com/llvm/llvm-project/commit/d490ce22e93db2e9d57985bc50915e383327911f
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-05-28 (Tue, 28 May 2024)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/test/CodeGen/RISCV/rvv/fceil-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/ffloor-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fceil-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-ffloor-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fnearbyint-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fround-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-froundeven-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-ftrunc-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fnearbyint-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fround-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/froundeven-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/ftrunc-constrained-sdnode.ll

  Log Message:
  -----------
  [RISCV] Use mask undisturbed policy when silencing sNans for strict rounding ops. (#93356)

The elements that aren't sNans need to get passed through this fadd
instruction unchanged. With the agnostic mask policy they might be
forced to all ones.



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