[all-commits] [llvm/llvm-project] 1df2e0: [clang codegen] Emit int TBAA metadata on FP math ...

[Allen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1df2e0c344f0ddf7e09a9c89eba6bbee52142344
      https://github.com/llvm/llvm-project/commit/1df2e0c344f0ddf7e09a9c89eba6bbee52142344
  Author: Allen <zhongyunde at huawei.com>
  Date:   2024-07-19 (Fri, 19 Jul 2024)

  Changed paths:
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/test/CodeGen/math-libcalls-tbaa.cpp

  Log Message:
  -----------
  [clang codegen] Emit int TBAA metadata on FP math libcall expf (#96025)

Base on the discussion
https://discourse.llvm.org/t/fp-can-we-add-pure-attribute-for-math-library-functions-default/79459,
math libcalls set errno, so it should emit "int" TBAA metadata on FP
libcalls to solve the alias issue.

Note: Only add support for expf in this PR

Fix https://github.com/llvm/llvm-project/issues/86635



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