[all-commits] [llvm/llvm-project] 28ad00: [ThinLTO] Don't mark calloc function dead (#72673)

[eleviant via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 28ad007927a4126e12b7aec7daa7f10bc1e29ae1
      https://github.com/llvm/llvm-project/commit/28ad007927a4126e12b7aec7daa7f10bc1e29ae1
  Author: eleviant <56861949+eleviant at users.noreply.github.com>
  Date:   2023-11-30 (Thu, 30 Nov 2023)

  Changed paths:
    M lld/test/ELF/lto/libcall-archive-calloc.ll
    M llvm/include/llvm/IR/RuntimeLibcalls.def
    M llvm/test/ThinLTO/X86/builtin-nostrip.ll

  Log Message:
  -----------
  [ThinLTO] Don't mark calloc function dead (#72673)

Dead store elimination pass may fold malloc + memset calls into a single
call to calloc. If calloc is not preserved and is not being called
it can be marked dead which results in link error.