llvm/test/CodeGen/X86/win64_vararg.ll
Anton Korobeynikov e7beda183d va_args support for Win64.
Patch by Cameron!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-03 22:52:07 +00:00

21 lines
648 B
LLVM

; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s
; Verify that the var arg parameters which are passed in registers are stored
; in home stack slots allocated by the caller and that AP is correctly
; calculated.
define void @average_va(i32 %count, ...) nounwind {
entry:
; CHECK: subq $40, %rsp
; CHECK: movq %r9, 72(%rsp)
; CHECK: movq %r8, 64(%rsp)
; CHECK: movq %rdx, 56(%rsp)
; CHECK: leaq 56(%rsp), %rax
%ap = alloca i8*, align 8 ; <i8**> [#uses=1]
%ap1 = bitcast i8** %ap to i8* ; <i8*> [#uses=1]
call void @llvm.va_start(i8* %ap1)
ret void
}
declare void @llvm.va_start(i8*) nounwind