[all-commits] [llvm/llvm-project] a77346: [IRBuilder] Refactor FMF interface (#121657)

[Yingwei Zheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a77346bad0d80a7f7e184f3d6e12c7f532101136
      https://github.com/llvm/llvm-project/commit/a77346bad0d80a7f7e184f3d6e12c7f532101136
  Author: Yingwei Zheng <dtcxzyw2333 at gmail.com>
  Date:   2025-01-06 (Mon, 06 Jan 2025)

  Changed paths:
    M llvm/include/llvm/IR/IRBuilder.h
    M llvm/lib/IR/IRBuilder.cpp
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    M llvm/lib/Transforms/AggressiveInstCombine/AggressiveInstCombine.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
    M llvm/lib/Transforms/Utils/SimplifyCFG.cpp
    M llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp

  Log Message:
  -----------
  [IRBuilder] Refactor FMF interface (#121657)

Up to now, the only way to set specified FMF flags in IRBuilder is to
use `FastMathFlagGuard`. It makes the code ugly and hard to maintain.

This patch introduces a helper class `FMFSource` to replace the original
parameter `Instruction *FMFSource` in IRBuilder. To maximize the
compatibility, it accepts an instruction or a specified FMF.
This patch also removes the use of `FastMathFlagGuard` in some simple
cases.

Compile-time impact:
https://llvm-compile-time-tracker.com/compare.php?from=f87a9db8322643ccbc324e317a75b55903129b55&to=9397e712f6010be15ccf62f12740e9b4a67de2f4&stat=instructions%3Au



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