[all-commits] [llvm/llvm-project] 99c9e5: [Hexagon] Fix signed constant creation in EmitVAAr...

[Brian Cain via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 99c9e5ebd6c7c5564190133b3171b53f17b7f3f8
      https://github.com/llvm/llvm-project/commit/99c9e5ebd6c7c5564190133b3171b53f17b7f3f8
  Author: Brian Cain <brian.cain at oss.qualcomm.com>
  Date:   2026-02-11 (Wed, 11 Feb 2026)

  Changed paths:
    M clang/lib/CodeGen/Targets/Hexagon.cpp
    M clang/test/CodeGen/hexagon-linux-vararg.c

  Log Message:
  -----------
  [Hexagon] Fix signed constant creation in EmitVAArgFromMemory (#180385)

Use ConstantInt::getSigned instead of ConstantInt::get when creating a
negative alignment mask in EmitVAArgFromMemory. This is the same fix as
commit 8546294db95d (PR #176115) which addressed the issue in
EmitVAArgForHexagonLinux.

Added a test case that exercises the EmitVAArgFromMemory alignment path
using a struct that is both >8 bytes (to trigger EmitVAArgFromMemory)
and has 8-byte alignment (to trigger the alignment masking code).



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