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| author | Akira Hatanaka <ahatanaka@apple.com> | 2018-02-05 20:23:22 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@apple.com> | 2018-02-05 20:23:22 +0000 |
| commit | 02914dc1278cf9b472e9cd4357d641b5dd3f5834 (patch) | |
| tree | ea2b88bc4177716dd38b8cacae2c87d7d90567ff /clang/test/Misc/pragma-attribute-supported-attributes-list.test | |
| parent | 02f6845095ee1ea0e54824a650a8f4c5d0ffd156 (diff) | |
| download | bcm5719-llvm-02914dc1278cf9b472e9cd4357d641b5dd3f5834.tar.gz bcm5719-llvm-02914dc1278cf9b472e9cd4357d641b5dd3f5834.zip | |
Add support for attribute 'trivial_abi'.
The 'trivial_abi' attribute can be applied to a C++ class, struct, or
union. It makes special functions of the annotated class (the destructor
and copy/move constructors) to be trivial for the purpose of calls and,
as a result, enables the annotated class or containing classes to be
passed or returned using the C ABI for the underlying type.
When a type that is considered trivial for the purpose of calls despite
having a non-trivial destructor (which happens only when the class type
or one of its subobjects is a 'trivial_abi' class) is passed to a
function, the callee is responsible for destroying the object.
For more background, see the discussions that took place on the mailing
list:
http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html
http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043
rdar://problem/35204524
Differential Revision: https://reviews.llvm.org/D41039
llvm-svn: 324269
Diffstat (limited to 'clang/test/Misc/pragma-attribute-supported-attributes-list.test')
| -rw-r--r-- | clang/test/Misc/pragma-attribute-supported-attributes-list.test | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/clang/test/Misc/pragma-attribute-supported-attributes-list.test b/clang/test/Misc/pragma-attribute-supported-attributes-list.test index 1171a2d3709..1004459e9a1 100644 --- a/clang/test/Misc/pragma-attribute-supported-attributes-list.test +++ b/clang/test/Misc/pragma-attribute-supported-attributes-list.test @@ -2,7 +2,7 @@ // The number of supported attributes should never go down! -// CHECK: #pragma clang attribute supports 66 attributes: +// CHECK: #pragma clang attribute supports 67 attributes: // CHECK-NEXT: AMDGPUFlatWorkGroupSize (SubjectMatchRule_function) // CHECK-NEXT: AMDGPUNumSGPR (SubjectMatchRule_function) // CHECK-NEXT: AMDGPUNumVGPR (SubjectMatchRule_function) @@ -66,6 +66,7 @@ // CHECK-NEXT: TLSModel (SubjectMatchRule_variable_is_thread_local) // CHECK-NEXT: Target (SubjectMatchRule_function) // CHECK-NEXT: TestTypestate (SubjectMatchRule_function_is_member) +// CHECK-NEXT: TrivialABI (SubjectMatchRule_record) // CHECK-NEXT: WarnUnusedResult (SubjectMatchRule_objc_method, SubjectMatchRule_enum, SubjectMatchRule_record, SubjectMatchRule_hasType_functionType) // CHECK-NEXT: XRayInstrument (SubjectMatchRule_function, SubjectMatchRule_objc_method) // CHECK-NEXT: XRayLogArgs (SubjectMatchRule_function, SubjectMatchRule_objc_method) |
