[all-commits] [llvm/llvm-project] 6fa1a2: [X86] Fix callee side of receiving byval args on t...

[Hans via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6fa1a2c084ea877c782987169649cac111c3d463
      https://github.com/llvm/llvm-project/commit/6fa1a2c084ea877c782987169649cac111c3d463
  Author: Hans Wennborg <hans at chromium.org>
  Date:   2023-06-16 (Fri, 16 Jun 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/win64-byval.ll

  Log Message:
  -----------
  [X86] Fix callee side of receiving byval args on the stack

See the discussion in
https://discourse.llvm.org/t/generic-llvm-ir-windows-x64-argument-passing-issue-in-llvm-11-0-0-and-later/71350

D51842 implemented byval lowering for Win64. D83175 made the call
lowering honor the "from now on treat this as a regular pointer" comment
also when the argument gets passed on the stack. However, it didn't
update the callee side.

Differential revision: https://reviews.llvm.org/D153020