| // RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm < %s | FileCheck %s |
| // RUN: %clang_cc1 -triple x86_64-pc-cygwin -emit-llvm < %s | FileCheck %s |
| |
| struct foo { |
| int x; |
| float y; |
| char z; |
| }; |
| // CHECK: %[[STRUCT_FOO:.*]] = type { i32, float, i8 } |
| |
| void f(int a, ...) { |
| // CHECK-LABEL: define dso_local void @f |
| __builtin_va_list ap; |
| __builtin_va_start(ap, a); |
| // CHECK: %[[AP:.*]] = alloca ptr |
| // CHECK: call void @llvm.va_start |
| int b = __builtin_va_arg(ap, int); |
| // CHECK: %[[AP_CUR:.*]] = load ptr, ptr %[[AP]] |
| // CHECK-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, ptr %[[AP_CUR]], i64 8 |
| // CHECK-NEXT: store ptr %[[AP_NEXT]], ptr %[[AP]] |
| double _Complex c = __builtin_va_arg(ap, double _Complex); |
| // CHECK: %[[AP_CUR2:.*]] = load ptr, ptr %[[AP]] |
| // CHECK-NEXT: %[[AP_NEXT2:.*]] = getelementptr inbounds i8, ptr %[[AP_CUR2]], i64 8 |
| // CHECK-NEXT: store ptr %[[AP_NEXT2]], ptr %[[AP]] |
| // CHECK-NEXT: load ptr, ptr %[[AP_CUR2]] |
| struct foo d = __builtin_va_arg(ap, struct foo); |
| // CHECK: %[[AP_CUR3:.*]] = load ptr, ptr %[[AP]] |
| // CHECK-NEXT: %[[AP_NEXT3:.*]] = getelementptr inbounds i8, ptr %[[AP_CUR3]], i64 8 |
| // CHECK-NEXT: store ptr %[[AP_NEXT3]], ptr %[[AP]] |
| __builtin_va_list ap2; |
| __builtin_va_copy(ap2, ap); |
| // CHECK: call void @llvm.va_copy |
| __builtin_va_end(ap); |
| // CHECK: call void @llvm.va_end |
| } |
