1 // RUN: %clang_cc1 -Wno-error=non-pod-varargs -triple i686-pc-win32 -fms-compatibility -emit-llvm -o - %s | FileCheck %s -check-prefix=X86 -check-prefix=CHECK
2 // RUN: %clang_cc1 -Wno-error=non-pod-varargs -triple x86_64-pc-win32 -fms-compatibility -emit-llvm -o - %s | FileCheck %s -check-prefix=X64 -check-prefix=CHECK
3
4 struct X {
5 X();
6 ~X();
7 int data;
8 };
9
10 void vararg(...);
11
test(X x)12 void test(X x) {
13 // CHECK-LABEL: define void @"\01?test@@YAXUX@@@Z"
14
15 // X86: %[[argmem:[^ ]*]] = alloca inalloca <{ %struct.X }>
16 // X86: call void (<{ %struct.X }>*, ...) bitcast (void (...)* @"\01?vararg@@YAXZZ" to void (<{ %struct.X }>*, ...)*)(<{ %struct.X }>* inalloca %[[argmem]])
17
18 // X64: alloca %struct.X
19
20 // X64: %[[agg:[^ ]*]] = alloca %struct.X
21 // X64: %[[valptr:[^ ]*]] = getelementptr inbounds %struct.X, %struct.X* %[[agg]], i32 0, i32 0
22 // X64: %[[val:[^ ]*]] = load i32, i32* %[[valptr]]
23 // X64: call void (...) @"\01?vararg@@YAXZZ"(i32 %[[val]])
24
25 // CHECK-NOT: llvm.trap
26 vararg(x);
27 // CHECK: ret void
28 }
29