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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
// rdar://7309675
// PR4678
namespace test0 {
// test1 should be compmiled to be a varargs function in the IR even
// though there is no way to do a va_begin. Otherwise, the optimizer
// will warn about 'dropped arguments' at the call site.
// CHECK-LABEL: define i32 @_ZN5test05test1Ez(...)
int test1(...) {
return -1;
}
// CHECK: call i32 (...)* @_ZN5test05test1Ez(i32 0)
void test() {
test1(0);
}
}
namespace test1 {
struct A {
int x;
int y;
};
void foo(...);
void test() {
A x;
foo(x);
}
// CHECK-LABEL: define void @_ZN5test14testEv()
// CHECK: [[X:%.*]] = alloca [[A:%.*]], align 4
// CHECK-NEXT: [[TMP:%.*]] = alloca [[A]], align 4
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[TMP]] to i8*
// CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[X]] to i8*
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[T0]], i8* [[T1]], i64 8, i32 4, i1 false)
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[TMP]] to i64*
// CHECK-NEXT: [[T1:%.*]] = load i64* [[T0]], align 1
// CHECK-NEXT: call void (...)* @_ZN5test13fooEz(i64 [[T1]])
// CHECK-NEXT: ret void
}
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