[all-commits] [llvm/llvm-project] ab33f1: [IROutliner] Add TTI Hook for Propagating Attribut...

[Sam Elliott via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ab33f1e427f7757a180e77ebeb67faded5b5b3d3
      https://github.com/llvm/llvm-project/commit/ab33f1e427f7757a180e77ebeb67faded5b5b3d3
  Author: Sam Elliott <aelliott at qti.qualcomm.com>
  Date:   2026-02-10 (Tue, 10 Feb 2026)

  Changed paths:
    M llvm/include/llvm/Analysis/TargetTransformInfo.h
    M llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
    M llvm/include/llvm/Transforms/IPO/IROutliner.h
    M llvm/lib/Analysis/TargetTransformInfo.cpp
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
    M llvm/lib/Transforms/IPO/IROutliner.cpp
    A llvm/test/Transforms/IROutliner/outlining-compatible-and-never-transfer-riscv.ll

  Log Message:
  -----------
  [IROutliner] Add TTI Hook for Propagating Attributes (#153985)

On RISC-V, the interrupt attribute relates only to the prolog and epilog
of the attributed function (and has specific restrictions on the
function's signature). It does not change how that function calls other
functions, and when outlining, the outlined function must not have this
attribute.

This adds a target-independent hook to TTI so targets can choose which
attributes to propagate (by default all are propagated).

Fixes #149969



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