blob: 70c1ce4811127c168935cda14a69ce6c3cbce8b0 [file] [log] [blame]
; RUN: llvm-as < %s | llvm-dis > %t1.ll
; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
; RUN: diff %t1.ll %t2.ll
; Demonstrate all of the variable argument handling intrinsic functions plus
; the va_arg instruction.
declare void @llvm.va_start(ptr)
declare void @llvm.va_copy(ptr, ptr)
declare void @llvm.va_end(ptr)
define i32 @test(i32 %X, ...) {
; Allocate two va_list items. On this target, va_list is of type sbyte*
%ap = alloca ptr ; <ptr> [#uses=4]
%aq = alloca ptr ; <ptr> [#uses=2]
; Initialize variable argument processing
call void @llvm.va_start( ptr %ap )
; Read a single integer argument
%tmp = va_arg ptr %ap, i32 ; <i32> [#uses=1]
; Demonstrate usage of llvm.va_copy and llvm_va_end
%apv = load ptr, ptr %ap ; <ptr> [#uses=1]
call void @llvm.va_copy( ptr %aq, ptr %apv )
call void @llvm.va_end( ptr %aq )
; Stop processing of arguments.
call void @llvm.va_end( ptr %ap )
ret i32 %tmp