llvm-6502/test/CodeGen/X86/win64_vararg.ll
Bill Wendling 17678da4db Fix Win64 va_arg.
--- Merging r127328 into '.':
U    test/CodeGen/X86/win64_vararg.ll
U    lib/Target/X86/X86ISelLowering.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_29@128044 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 00:19:46 +00:00

54 lines
1.3 KiB
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: pushq
; CHECK: movq %r9, 40(%rsp)
; CHECK: movq %r8, 32(%rsp)
; CHECK: movq %rdx, 24(%rsp)
; CHECK: leaq 24(%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
; CHECK: f5:
; CHECK: pushq
; CHECK: leaq 56(%rsp),
define i8* @f5(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, ...) nounwind {
entry:
%ap = alloca i8*, align 8
%ap1 = bitcast i8** %ap to i8*
call void @llvm.va_start(i8* %ap1)
ret i8* %ap1
}
; CHECK: f4:
; CHECK: pushq
; CHECK: leaq 48(%rsp),
define i8* @f4(i64 %a0, i64 %a1, i64 %a2, i64 %a3, ...) nounwind {
entry:
%ap = alloca i8*, align 8
%ap1 = bitcast i8** %ap to i8*
call void @llvm.va_start(i8* %ap1)
ret i8* %ap1
}
; CHECK: f3:
; CHECK: pushq
; CHECK: leaq 40(%rsp),
define i8* @f3(i64 %a0, i64 %a1, i64 %a2, ...) nounwind {
entry:
%ap = alloca i8*, align 8
%ap1 = bitcast i8** %ap to i8*
call void @llvm.va_start(i8* %ap1)
ret i8* %ap1
}