Benjamin Kramer | 6cacae8 | 2012-09-30 12:43:37 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin12 -emit-llvm -o - -std=c++11 %s -DPOD | FileCheck %s -check-prefix=CHECK-POD |
| 2 | // RUN: %clang_cc1 -triple x86_64-apple-darwin12 -emit-llvm -o - -std=c++11 %s | FileCheck %s -check-prefix=CHECK-NONPOD |
| 3 | |
| 4 | // Declare the reserved placement operators. |
| 5 | typedef __typeof__(sizeof(0)) size_t; |
| 6 | void *operator new(size_t, void*) throw(); |
| 7 | void operator delete(void*, void*) throw(); |
| 8 | void *operator new[](size_t, void*) throw(); |
| 9 | void operator delete[](void*, void*) throw(); |
| 10 | template<typename T> T &&move(T&); |
| 11 | |
| 12 | struct foo { |
| 13 | #ifndef POD |
| 14 | foo() {} // non-POD |
| 15 | #endif |
| 16 | void *a, *b; |
| 17 | bool c; |
| 18 | }; |
| 19 | |
| 20 | // It is not legal to copy the tail padding in all cases, but if it is it can |
| 21 | // yield better codegen. |
| 22 | |
| 23 | foo *test1(void *f, const foo &x) { |
| 24 | return new (f) foo(x); |
| 25 | // CHECK-POD: test1 |
| 26 | // CHECK-POD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 27 | |
| 28 | // CHECK-NONPOD: test1 |
| 29 | // CHECK-NONPOD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 30 | } |
| 31 | |
| 32 | foo *test2(const foo &x) { |
| 33 | return new foo(x); |
| 34 | // CHECK-POD: test2 |
| 35 | // CHECK-POD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 36 | |
| 37 | // CHECK-NONPOD: test2 |
| 38 | // CHECK-NONPOD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 39 | } |
| 40 | |
| 41 | foo test3(const foo &x) { |
| 42 | foo f = x; |
| 43 | return f; |
| 44 | // CHECK-POD: test3 |
| 45 | // CHECK-POD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 46 | |
| 47 | // CHECK-NONPOD: test3 |
| 48 | // CHECK-NONPOD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 49 | } |
| 50 | |
| 51 | foo *test4(foo &&x) { |
| 52 | return new foo(x); |
| 53 | // CHECK-POD: test4 |
| 54 | // CHECK-POD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 55 | |
| 56 | // CHECK-NONPOD: test4 |
| 57 | // CHECK-NONPOD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 58 | } |
| 59 | |
| 60 | void test5(foo &f, const foo &x) { |
| 61 | f = x; |
| 62 | // CHECK-POD: test5 |
| 63 | // CHECK-POD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 64 | |
| 65 | // CHECK-NONPOD: test5 |
| 66 | // CHECK-NONPOD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 17, i32 8 |
| 67 | } |
| 68 | |
| 69 | extern foo globtest; |
| 70 | |
| 71 | void test6(foo &&x) { |
| 72 | globtest = move(x); |
| 73 | // CHECK-POD: test6 |
| 74 | // CHECK-POD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 75 | |
| 76 | // CHECK-NONPOD: test6 |
| 77 | // CHECK-NONPOD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 17, i32 8 |
| 78 | } |
| 79 | |
| 80 | void byval(foo f); |
| 81 | |
| 82 | void test7(const foo &x) { |
| 83 | byval(x); |
| 84 | // CHECK-POD: test7 |
| 85 | // CHECK-POD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 86 | |
| 87 | // CHECK-NONPOD: test7 |
| 88 | // CHECK-NONPOD: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}i64 24, i32 8 |
| 89 | } |