[clang] [Parser][BoundsSafety] Print attribute as macro if it's system defined (PR #107619)

[Aaron Ballman via cfe-commits]

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@@ -0,0 +1,22 @@
+// RUN: %clang_cc1 -I%S/Inputs -fsyntax-only -triple x86_64-linux-gnu %s 2>&1 | FileCheck %s
+
+#include <macro_defined_type.h>
+
+// The diagnostic message is hard-coded as 'noderef' so using a system macro doesn't change the behavior
+void Func_system_macro() {
+  int _SYS_NODEREF i; // expected-warning{{'noderef' can only be used on an array or pointer type}}
+  // CHECK: :[[@LINE-1]]:{{.*}} warning: 'noderef' can only be used on an array or pointer type
+
+  int _SYS_NODEREF *i_ptr;
+
+  auto _SYS_NODEREF *auto_i_ptr2 = i_ptr;
+  auto _SYS_NODEREF auto_i2 = i; // expected-warning{{'noderef' can only be used on an array or pointer type}}
+}
+
+struct A_system_macro {
+  _SYS_LIBCPP_FLOAT_ABI int operator()() throw();
+  // CHECK: :[[@LINE-1]]:{{.*}} warning: '_SYS_LIBCPP_FLOAT_ABI' calling convention is not supported for this target
+  // CHECK: {{.*}}macro_defined_type.h:{{.*}}:{{.*}}: note: expanded from macro '_SYS_LIBCPP_FLOAT_ABI'
+  // CHECK:  4 | #define _SYS_LIBCPP_FLOAT_ABI __attribute__((pcs("aapcs")))
+  // CHECK:    |                                              ^
+};
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AaronBallman wrote:

Please add a newline to the end of the file (same below).

https://github.com/llvm/llvm-project/pull/107619