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// RUN: %clang_cc1 -no-opaque-pointers -Wno-non-pod-varargs -emit-llvm %s -o - -triple=i686-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck %s
#include <stdarg.h>
struct A {
A(int a) : a(a) {}
A(const A &o) : a(o.a) {}
~A() {}
int a;
};
int foo(A a, ...) {
va_list ap;
va_start(ap, a);
int sum = 0;
for (int i = 0; i < a.a; ++i)
sum += va_arg(ap, int);
va_end(ap);
return sum;
}
// CHECK-LABEL: define dso_local noundef i32 @"?foo@@YAHUA@@ZZ"(<{ %struct.A }>* inalloca(<{ %struct.A }>) %0, ...)
int main() {
return foo(A(3), 1, 2, 3);
}
// CHECK-LABEL: define dso_local noundef i32 @main()
// CHECK: %[[argmem:[^ ]*]] = alloca inalloca <{ %struct.A, i32, i32, i32 }>
// CHECK: call noundef i32 {{.*bitcast.*}}@"?foo@@YAHUA@@ZZ"{{.*}}(<{ %struct.A, i32, i32, i32 }>* inalloca(<{ %struct.A, i32, i32, i32 }>) %[[argmem]])
void varargs_zero(...);
void varargs_one(int, ...);
void varargs_two(int, int, ...);
void varargs_three(int, int, int, ...);
void call_var_args() {
A x(3);
varargs_zero(x);
varargs_one(1, x);
varargs_two(1, 2, x);
varargs_three(1, 2, 3, x);
}
// CHECK-LABEL: define dso_local void @"?call_var_args@@YAXXZ"()
// CHECK: call void {{.*bitcast.*varargs_zero.*}}(<{ %struct.A }>* inalloca(<{ %struct.A }>) %{{.*}})
// CHECK: call void {{.*bitcast.*varargs_one.*}}(<{ i32, %struct.A }>* inalloca(<{ i32, %struct.A }>) %{{.*}})
// CHECK: call void {{.*bitcast.*varargs_two.*}}(<{ i32, i32, %struct.A }>* inalloca(<{ i32, i32, %struct.A }>) %{{.*}})
// CHECK: call void {{.*bitcast.*varargs_three.*}}(<{ i32, i32, i32, %struct.A }>* inalloca(<{ i32, i32, i32, %struct.A }>) %{{.*}})
// CHECK-LABEL: declare dso_local void @"?varargs_zero@@YAXZZ"(...)
// CHECK-LABEL: declare dso_local void @"?varargs_one@@YAXHZZ"(i32 noundef, ...)
// CHECK-LABEL: declare dso_local void @"?varargs_two@@YAXHHZZ"(i32 noundef, i32 noundef, ...)
// CHECK-LABEL: declare dso_local void @"?varargs_three@@YAXHHHZZ"(i32 noundef, i32 noundef, i32 noundef, ...)
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