[clang] [PAC] Add support for __ptrauth type qualifier (PR #100830)

[Aaron Ballman via cfe-commits]

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@@ -0,0 +1,86 @@
+// RUN: %clang_cc1 -triple arm64-apple-ios -fsyntax-only -verify -fptrauth-intrinsics %s
+// RUN: %clang_cc1 -triple aarch64-linux-gnu -fsyntax-only -verify -fptrauth-intrinsics %s
+
+#if __has_feature(ptrauth_qualifier)
+#warning __ptrauth qualifier enabled!
+// expected-warning at -1 {{__ptrauth qualifier enabled!}}
+#endif
+
+#if __aarch64__
+#define VALID_CODE_KEY 0
+#define VALID_DATA_KEY 2
+#define INVALID_KEY 200
+#else
+#error Provide these constants if you port this test
+#endif
+
+int * __ptrauth(VALID_DATA_KEY) valid0;
+
+typedef int *intp;
+
+int nonConstantGlobal = 5;
+
+__ptrauth int invalid0; // expected-error{{expected '('}}
+__ptrauth() int invalid1; // expected-error{{expected expression}}
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AaronBallman wrote:

You should add the parsing tests in `clang/test/Parser` instead of here in `Sema`.

https://github.com/llvm/llvm-project/pull/100830