| Richard Smith | b5a317f | 2018-05-07 06:43:30 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsyntax-only -fclang-abi-compat=6 -triple x86_64-linux-gnu -fdump-record-layouts %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V6 |
| 2 | // RUN: %clang_cc1 -fsyntax-only -fclang-abi-compat=7 -triple x86_64-linux-gnu -fdump-record-layouts %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V7 |
| 3 | |
| 4 | // In Clang 6 and before, we determined that Nonempty was empty, so we |
| 5 | // applied EBO to it. |
| 6 | struct Nonempty { int : 4; }; |
| 7 | struct A : Nonempty { int n; }; |
| 8 | int k = sizeof(A); |
| 9 | |
| 10 | // CHECK:*** Dumping AST Record Layout |
| 11 | // CHECK: 0 | struct A |
| 12 | // CHECK-V6-NEXT: 0 | struct Nonempty (base) (empty) |
| 13 | // CHECK-V7-NEXT: 0 | struct Nonempty (base){{$}} |
| 14 | // CHECK-NEXT: 0:0-3 | int |
| 15 | // CHECK-V6-NEXT: 0 | int n |
| 16 | // CHECK-V7-NEXT: 4 | int n |
| 17 | // CHECK-V6-NEXT: | [sizeof=4, dsize=4, align=4, |
| 18 | // CHECK-V6-NEXT: | nvsize=4, nvalign=4] |
| 19 | // CHECK-V7-NEXT: | [sizeof=8, dsize=8, align=4, |
| 20 | // CHECK-V7-NEXT: | nvsize=8, nvalign=4] |