[all-commits] [llvm/llvm-project] 9c6a9f: [CodeGen][ARM64EC] Copy first four arguments to FP...

[Jacek Caban via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9c6a9f5fa37ffc21d4561301772bc600bd344d4c
      https://github.com/llvm/llvm-project/commit/9c6a9f5fa37ffc21d4561301772bc600bd344d4c
  Author: Jacek Caban <jacek at codeweavers.com>
  Date:   2026-07-16 (Thu, 16 Jul 2026)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/arm64ec-exit-thunks.ll

  Log Message:
  -----------
  [CodeGen][ARM64EC] Copy first four arguments to FP registers in vararg exit thunks (#209581)

ARM64EC vararg functions receive all types of the first four arguments
in x0-x3. Because x86_64 expects floating-point arguments in FP
registers, always copy x0-x3 to d0-d3 in the exit thunks, matching
MSVC's behavior.



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