[all-commits] [llvm/llvm-project] bb78a0: [CIR] Fix __builtin_va_start handling (#184654)

[Andy Kaylor via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bb78a0a47083b55147176e878a2363a41c0cd3cc
      https://github.com/llvm/llvm-project/commit/bb78a0a47083b55147176e878a2363a41c0cd3cc
  Author: Andy Kaylor <akaylor at nvidia.com>
  Date:   2026-03-04 (Wed, 04 Mar 2026)

  Changed paths:
    M clang/include/clang/CIR/Dialect/IR/CIROps.td
    M clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
    M clang/lib/CIR/CodeGen/CIRGenFunction.h
    M clang/test/CIR/CodeGen/var-arg-aggregate.c
    M clang/test/CIR/CodeGen/var_arg.c

  Log Message:
  -----------
  [CIR] Fix __builtin_va_start handling (#184654)

We were attempting to capture a `count` argument for __builtin_va_start
but the builtin doesn't actually have that as a defined argument. This
change removes the errant handling.



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