================
@@ -4920,6 +4920,116 @@ If no address spaces names are provided, all address
spaces are fenced.
__builtin_amdgcn_fence(__ATOMIC_SEQ_CST, "workgroup", "local")
__builtin_amdgcn_fence(__ATOMIC_SEQ_CST, "workgroup", "local", "global")
+__builtin_amdgcn_processor_is and __builtin_amdgcn_is_invocable
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+``__builtin_amdgcn_processor_is`` and ``__builtin_amdgcn_is_invocable`` provide
+a functional mechanism for programatically querying:
+
+* the identity of the current target processor;
+* the capability of the current target processor to invoke a particular
builtin.
+
+**Syntax**:
+
+.. code-block:: c
+
+ // When used as the predicate for a control structure
+ bool __builtin_amdgcn_processor_is(const char*);
+ bool __builtin_amdgcn_is_invocable(builtin_name);
+ // Otherwise
----------------
erichkeane wrote:
Also, what is the type in an unevaluated context? So what is
`decltype(__builtin_amd_gcn_processor_is("gfx1201"))`?
https://github.com/llvm/llvm-project/pull/134016
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