[all-commits] [llvm/llvm-project] ecbe4d: [IR] Allow fast math flags on fptrunc and fpext (#...

[John Brawn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ecbe4d1e360e25c0634a3a62fbd01e8df5bb0c1b
      https://github.com/llvm/llvm-project/commit/ecbe4d1e360e25c0634a3a62fbd01e8df5bb0c1b
  Author: John Brawn <john.brawn at arm.com>
  Date:   2024-12-04 (Wed, 04 Dec 2024)

  Changed paths:
    M clang/test/CodeGen/X86/cx-complex-range.c
    M clang/test/CodeGen/cx-complex-range.c
    M clang/test/CodeGen/matrix-type-operators-fast-math.c
    M clang/test/CodeGen/nofpclass.c
    M clang/test/CodeGenCUDA/amdgpu-atomic-ops.cu
    M clang/test/CodeGenHIP/printf_nonhostcall.cpp
    M clang/test/Headers/__clang_hip_math_ocml_rounded_ops.hip
    M llvm/docs/LangRef.rst
    M llvm/docs/ReleaseNotes.md
    M llvm/include/llvm/IR/IRBuilder.h
    M llvm/include/llvm/IR/Operator.h
    M llvm/lib/AsmParser/LLParser.cpp
    M llvm/lib/Bitcode/Reader/BitcodeReader.cpp
    M llvm/test/Assembler/fast-math-flags.ll
    M llvm/test/Bitcode/compatibility.ll
    M llvm/test/Transforms/InstCombine/fpcast.ll

  Log Message:
  -----------
  [IR] Allow fast math flags on fptrunc and fpext (#115894)

This consists of:
 * Make these instructions part of FPMathOperator.
* Adjust bitcode/ir readers/writers to expect fast math flags on these
instructions.
 * Make IRBuilder set the fast math flags on these instructions.
 * Update langref and release notes.
* Update a bunch of tests. Some of these are due to InstCombineCasts
incorrectly adding fast math flags to fptrunc, which will be fixed in a
later patch.



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