================
@@ -0,0 +1,42 @@
+// RUN: %clang_cc1 -Oz -triple x86_64-unknown-linux-gnu -fexceptions -o -
-emit-llvm %s | FileCheck %s
+
+typedef __UINT64_TYPE__ uint64_t;
+
+void abort(void) __attribute__((__noreturn__));
+
+typedef enum _Unwind_Reason_Code _Unwind_Reason_Code;
+typedef enum _Unwind_Action _Unwind_Action;
+
+struct _Unwind_Exception;
+struct _Unwind_Context;
+
+_Unwind_Reason_Code __swift_personality_v0(int version, _Unwind_Action action,
uint64_t exception_class, struct _Unwind_Exception *exception, struct
_Unwind_Context *context);
+
+void function(void);
+
+void __attribute__((__personality__(__swift_personality_v0)))
function_with_custom_personality(void) {
+}
+
+static void cleanup_int(int *p) {
+ *p = 0;
+}
+
+void function_without_custom_personality(void) {
+ int variable __attribute__((__cleanup__(cleanup_int))) = 1;
+ function();
+}
+
+int __undeclared_personality_v0(void) { return 0; }
----------------
compnerd wrote:
That is not possible, the parameter type handling for `__personality__`
requires the declaration to precede the use, which means that you either define
it before the use or you don't define it. A declaration followed by the use and
a mismatched definition would just be a mismatched definition.
What do you mean it is called before the use as a personality? The
personalities would never be called - they are not regular functions.
https://github.com/llvm/llvm-project/pull/185225
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