[clang] [OpenCL] Add warning for reserved 'long long' type (PR #196002)

[Wenju He via cfe-commits]

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@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 %s -cl-std=CL1.0 -verify -fsyntax-only
+// RUN: %clang_cc1 %s -cl-std=CL1.2 -verify -fsyntax-only
+// RUN: %clang_cc1 %s -cl-std=CL2.0 -verify -fsyntax-only
+// RUN: %clang_cc1 %s -cl-std=CL3.0 -verify -fsyntax-only
+
+void kernel test_longlong() {
+  long long x = 0;          // expected-warning{{'long long' is a reserved data type in OpenCL C}}
+  unsigned long long y = 0; // expected-warning{{'long long' is a reserved data type in OpenCL C}}
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wenju-he wrote:

done

https://github.com/llvm/llvm-project/pull/196002