diff options
| author | Adrian Prantl <aprantl@apple.com> | 2015-04-29 16:52:31 +0000 |
|---|---|---|
| committer | Adrian Prantl <aprantl@apple.com> | 2015-04-29 16:52:31 +0000 |
| commit | 00820abf0271dcbe03231b832d603ad6a1e7dc9b (patch) | |
| tree | ce6918965a5f7dc1e394f679839228646966a3e5 /clang/test | |
| parent | ba6ec4b70bc49bf8b65b59f64b43df4df3fe786e (diff) | |
| download | bcm5719-llvm-00820abf0271dcbe03231b832d603ad6a1e7dc9b.tar.gz bcm5719-llvm-00820abf0271dcbe03231b832d603ad6a1e7dc9b.zip | |
Debug Info: Represent local anonymous unions as anonymous unions
and as artificial local variables in the debug info.
This is a follow-up to r236059. We can't get rid of the local variables
entirely because the gdb buildbot depends on them, but we can mark them
as artificial while still emitting the correct debug info. As I learned
from review comments other compilers also follow this model.
A paired commit in LLVM temporarily relaxes the debug info verifier to
not check the integrity of DW_OP_bit_pieces of artificial variables.
rdar://problem/20730771
llvm-svn: 236125
Diffstat (limited to 'clang/test')
| -rw-r--r-- | clang/test/CodeGenCXX/debug-info-anon-union-vars.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/debug-info-anon-union-vars.cpp b/clang/test/CodeGenCXX/debug-info-anon-union-vars.cpp index cfc7bc8fbfe..ad3b6d4c623 100644 --- a/clang/test/CodeGenCXX/debug-info-anon-union-vars.cpp +++ b/clang/test/CodeGenCXX/debug-info-anon-union-vars.cpp @@ -21,8 +21,26 @@ int test_it() { return (c == 1); } +void foo() { + union { + int i; + char c; + }; + i = 8; +} + // CHECK: [[FILE:.*]] = !DIFile(filename: "{{.*}}debug-info-anon-union-vars.cpp", // CHECK: !DIGlobalVariable(name: "c",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true // CHECK: !DIGlobalVariable(name: "d",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true // CHECK: !DIGlobalVariable(name: "a",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true // CHECK: !DIGlobalVariable(name: "b",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true +// CHECK: !DILocalVariable(tag: DW_TAG_auto_variable, name: "i", {{.*}}, flags: DIFlagArtificial +// CHECK: !DILocalVariable(tag: DW_TAG_auto_variable, name: "c", {{.*}}, flags: DIFlagArtificial +// CHECK: !DILocalVariable( +// CHECK-NOT: name: +// CHECK: type: ![[UNION:[0-9]+]] +// CHECK: ![[UNION]] = !DICompositeType(tag: DW_TAG_union_type, +// CHECK-NOT: name: +// CHECK: elements +// CHECK: !DIDerivedType(tag: DW_TAG_member, name: "i", scope: ![[UNION]], +// CHECK: !DIDerivedType(tag: DW_TAG_member, name: "c", scope: ![[UNION]], |
