diff options
| author | Manman Ren <manman.ren@gmail.com> | 2013-10-08 00:08:49 +0000 |
|---|---|---|
| committer | Manman Ren <manman.ren@gmail.com> | 2013-10-08 00:08:49 +0000 |
| commit | feba9f2bdc5711894e452dfc67c9679482fbf897 (patch) | |
| tree | 660d41e858c1f03e8f89d43b4a205c7cac4a5952 /test/CodeGen/tbaa-struct.cpp | |
| parent | aeb87e7ef327905ba1abba879076e9577a2090c4 (diff) | |
TBAA: use the same format for scalar TBAA and struct-path aware TBAA.
An updated version of r191586 with bug fix.
Struct-path aware TBAA generates tags to specify the access path,
while scalar TBAA only generates tags to scalar types.
We should not generate a TBAA tag with null being the first field. When
a TBAA type node is null, the tag should be null too. Make sure we
don't decorate an instruction with a null TBAA tag.
Added a testing case for the bug reported by Richard with -relaxed-aliasing
and -fsanitizer=thread.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192145 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/tbaa-struct.cpp')
| -rw-r--r-- | test/CodeGen/tbaa-struct.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/test/CodeGen/tbaa-struct.cpp b/test/CodeGen/tbaa-struct.cpp index 9320a8375c..f8bd1245ce 100644 --- a/test/CodeGen/tbaa-struct.cpp +++ b/test/CodeGen/tbaa-struct.cpp @@ -65,10 +65,12 @@ void copy5(struct six *a, struct six *b) { // CHECK: [[TS]] = metadata !{i64 0, i64 2, metadata !{{.*}}, i64 4, i64 4, metadata !{{.*}}, i64 8, i64 1, metadata !{{.*}}, i64 12, i64 4, metadata !{{.*}}} // CHECK: [[CHAR:!.*]] = metadata !{metadata !"omnipotent char", metadata !{{.*}}} -// CHECK: [[INT:!.*]] = metadata !{metadata !"int", metadata [[CHAR]]} +// CHECK: [[TAG_INT:!.*]] = metadata !{metadata [[INT:!.*]], metadata [[INT]], i64 0} +// CHECK: [[INT]] = metadata !{metadata !"int", metadata [[CHAR]] +// CHECK: [[TAG_CHAR:!.*]] = metadata !{metadata [[CHAR]], metadata [[CHAR]], i64 0} // (offset, size) = (0,1) char; (4,2) short; (8,4) int; (12,1) char; (16,4) int; (20,4) int // 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 {{.*}}} // (offset, size) = (0,8) char; (0,2) char; (4,8) char // CHECK: [[TS3]] = metadata !{i64 0, i64 8, metadata !{{.*}}, i64 0, i64 2, metadata !{{.*}}, i64 4, i64 8, metadata !{{.*}}} -// CHECK: [[TS4]] = metadata !{i64 0, i64 1, metadata [[CHAR]], i64 1, i64 4, metadata [[INT]], i64 1, i64 1, metadata [[CHAR]], i64 2, i64 1, metadata [[CHAR]]} -// 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]]} +// CHECK: [[TS4]] = metadata !{i64 0, i64 1, metadata [[TAG_CHAR]], i64 1, i64 4, metadata [[TAG_INT]], i64 1, i64 1, metadata [[TAG_CHAR]], i64 2, i64 1, metadata [[TAG_CHAR]]} +// CHECK: [[TS5]] = metadata !{i64 0, i64 1, metadata [[TAG_CHAR]], i64 4, i64 4, metadata [[TAG_INT]], i64 4, i64 1, metadata [[TAG_CHAR]], i64 5, i64 1, metadata [[TAG_CHAR]]} |