1; RUN: llvm-as < %s | llvm-dis > %t1.ll 2; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll 3; RUN: diff %t1.ll %t2.ll 4 5; Demonstrate all of the variable argument handling intrinsic functions plus 6; the va_arg instruction. 7 8declare void @llvm.va_start(ptr) 9 10declare void @llvm.va_copy(ptr, ptr) 11 12declare void @llvm.va_end(ptr) 13 14define i32 @test(i32 %X, ...) { 15 %ap = alloca ptr ; <ptr> [#uses=4] 16 call void @llvm.va_start( ptr %ap ) 17 %tmp = va_arg ptr %ap, i32 ; <i32> [#uses=1] 18 %aq = alloca ptr ; <ptr> [#uses=2] 19 call void @llvm.va_copy( ptr %aq, ptr %ap ) 20 call void @llvm.va_end( ptr %aq ) 21 call void @llvm.va_end( ptr %ap ) 22 ret i32 %tmp 23} 24 25