| Manman Ren | 5d7a96c | 2013-04-22 22:50:27 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - -O1 %s | FileCheck %s |
| Dan Gohman | b22c7dc | 2012-09-28 21:58:29 +0000 | [diff] [blame] | 2 | // |
| 3 | // Check that we generate !tbaa.struct metadata for struct copies. |
| 4 | struct A { |
| 5 | short s; |
| 6 | int i; |
| 7 | char c; |
| 8 | int j; |
| 9 | }; |
| 10 | |
| 11 | void copy(struct A *a, struct A *b) { |
| 12 | *a = *b; |
| 13 | } |
| 14 | |
| NAKAMURA Takumi | 436e825 | 2012-09-29 02:00:04 +0000 | [diff] [blame] | 15 | // CHECK: target datalayout = "{{.*}}p:[[P:64|32]] |
| 16 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 16, i32 4, i1 false), !tbaa.struct [[TS:!.*]] |
| Manman Ren | b79f589 | 2013-03-21 00:09:50 +0000 | [diff] [blame] | 17 | |
| 18 | struct B { |
| 19 | char c1; |
| 20 | struct A a; |
| 21 | int ii; |
| 22 | }; |
| 23 | |
| 24 | void copy2(struct B *a, struct B *b) { |
| 25 | *a = *b; |
| 26 | } |
| 27 | |
| 28 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 24, i32 4, i1 false), !tbaa.struct [[TS2:!.*]] |
| 29 | |
| 30 | typedef _Complex int T2; |
| 31 | typedef _Complex char T5; |
| 32 | typedef _Complex int T7; |
| 33 | typedef struct T4 { T5 field0; T7 field1; } T4; |
| 34 | typedef union T1 { T2 field0; T4 field1; } T1; |
| 35 | |
| 36 | void copy3 (T1 *a, T1 *b) { |
| 37 | *a = *b; |
| 38 | } |
| 39 | |
| 40 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 12, i32 4, i1 false), !tbaa.struct [[TS3:!.*]] |
| 41 | |
| Manman Ren | c7f2bfb | 2013-04-22 19:50:07 +0000 | [diff] [blame] | 42 | // Make sure that zero-length bitfield works. |
| 43 | #define ATTR __attribute__ ((ms_struct)) |
| 44 | struct five { |
| 45 | char a; |
| 46 | int :0; /* ignored; prior field is not a bitfield. */ |
| 47 | char b; |
| 48 | char c; |
| 49 | } ATTR; |
| 50 | void copy4(struct five *a, struct five *b) { |
| 51 | *a = *b; |
| 52 | } |
| 53 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 3, i32 1, i1 false), !tbaa.struct [[TS4:!.*]] |
| 54 | |
| 55 | struct six { |
| 56 | char a; |
| 57 | int :0; |
| 58 | char b; |
| 59 | char c; |
| 60 | }; |
| 61 | void copy5(struct six *a, struct six *b) { |
| 62 | *a = *b; |
| 63 | } |
| 64 | // CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 6, i32 1, i1 false), !tbaa.struct [[TS5:!.*]] |
| 65 | |
| Dan Gohman | b22c7dc | 2012-09-28 21:58:29 +0000 | [diff] [blame] | 66 | // CHECK: [[TS]] = metadata !{i64 0, i64 2, metadata !{{.*}}, i64 4, i64 4, metadata !{{.*}}, i64 8, i64 1, metadata !{{.*}}, i64 12, i64 4, metadata !{{.*}}} |
| Manman Ren | c7f2bfb | 2013-04-22 19:50:07 +0000 | [diff] [blame] | 67 | // CHECK: [[CHAR:!.*]] = metadata !{metadata !"omnipotent char", metadata !{{.*}}} |
| 68 | // CHECK: [[INT:!.*]] = metadata !{metadata !"int", metadata [[CHAR]]} |
| Manman Ren | b79f589 | 2013-03-21 00:09:50 +0000 | [diff] [blame] | 69 | // (offset, size) = (0,1) char; (4,2) short; (8,4) int; (12,1) char; (16,4) int; (20,4) int |
| 70 | // CHECK: [[TS2]] = metadata !{i64 0, i64 1, metadata !{{.*}}, i64 4, i64 2, metadata !{{.*}}, i64 8, i64 4, metadata !{{.*}}, i64 12, i64 1, metadata !{{.*}}, i64 16, i64 4, metadata {{.*}}, i64 20, i64 4, metadata {{.*}}} |
| 71 | // (offset, size) = (0,8) char; (0,2) char; (4,8) char |
| 72 | // CHECK: [[TS3]] = metadata !{i64 0, i64 8, metadata !{{.*}}, i64 0, i64 2, metadata !{{.*}}, i64 4, i64 8, metadata !{{.*}}} |
| Manman Ren | c7f2bfb | 2013-04-22 19:50:07 +0000 | [diff] [blame] | 73 | // CHECK: [[TS4]] = metadata !{i64 0, i64 1, metadata [[CHAR]], i64 1, i64 1, metadata [[CHAR]], i64 2, i64 1, metadata [[CHAR]]} |
| 74 | // CHECK: [[TS5]] = metadata !{i64 0, i64 1, metadata [[CHAR]], i64 4, i64 4, metadata [[INT]], i64 4, i64 1, metadata [[CHAR]], i64 5, i64 1, metadata [[CHAR]]} |