[all-commits] [llvm/llvm-project] 8dd817: [LangRef] Disallow accessing byval arguments from ...

[Oliver Stannard via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8dd817b25ae8b666aef839d36ffe028c01d411b5
      https://github.com/llvm/llvm-project/commit/8dd817b25ae8b666aef839d36ffe028c01d411b5
  Author: Oliver Stannard <oliver.stannard at arm.com>
  Date:   2024-09-27 (Fri, 27 Sep 2024)

  Changed paths:
    M llvm/docs/LangRef.rst
    M llvm/test/CodeGen/ARM/struct_byval.ll

  Log Message:
  -----------
  [LangRef] Disallow accessing byval arguments from tail-called functions (#110093)

We already disallow accessing the callee's allocas from a tail-called
function, because their stack memory will have been de-allocated before
the tail call. I think this should apply to byval arguments too, as they
also occupy space in the caller's stack frame.

This was originally part of #109943, spilt out for separate review.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications