[all-commits] [llvm/llvm-project] dd4844: [SelectionDAG] Add generic implementation for @llv...

[antangelo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dd4844722d98a97edd180e20abd4e65e1e2dd9d7
      https://github.com/llvm/llvm-project/commit/dd4844722d98a97edd180e20abd4e65e1e2dd9d7
  Author: antangelo <contact at antangelo.com>
  Date:   2024-11-26 (Tue, 26 Nov 2024)

  Changed paths:
    M llvm/lib/CodeGen/IntrinsicLowering.cpp
    M llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    A llvm/test/CodeGen/Generic/builtin-expect-with-probability.ll

  Log Message:
  -----------
  [SelectionDAG] Add generic implementation for @llvm.expect.with.probability when optimizations are disabled (#117459)

Handle \@llvm.expect.with.probability in SelectionDAGBuilder, FastISel,
and IntrinsicLowering in the same way \@llvm.expect is handled, where
the value is passed through as-is. This can be reached if the intrinsic
is used without optimizations, where it would otherwise be properly
transformed out.

Fixes #115411 for SelectionDAG. A similar patch is likely needed for
GlobalISel.



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