[clang] [SYCL] The sycl_kernel_entry_point attribute. (PR #111389)

[Tom Honermann via cfe-commits]

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+// Tests without serialization:
+// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown -fsycl-is-device \
+// RUN:   -ast-dump %s \
+// RUN:   | FileCheck --match-full-lines %s
+// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown -fsycl-is-host \
+// RUN:   -ast-dump %s \
+// RUN:   | FileCheck --match-full-lines %s
+//
+// Tests with serialization:
+// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown -fsycl-is-device \
+// RUN:   -emit-pch -o %t %s
+// RUN: %clang_cc1 -x c++ -std=c++17 -triple x86_64-unknown-unknown -fsycl-is-device \
+// RUN:   -include-pch %t -ast-dump-all /dev/null \
+// RUN:   | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
+// RUN:   | FileCheck --match-full-lines %s
+// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown -fsycl-is-host \
+// RUN:   -emit-pch -o %t %s
+// RUN: %clang_cc1 -x c++ -std=c++17 -triple x86_64-unknown-unknown -fsycl-is-host \
+// RUN:   -include-pch %t -ast-dump-all /dev/null \
+// RUN:   | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
+// RUN:   | FileCheck --match-full-lines %s
+
+// These tests validate the AST produced for functions declared with the
+// sycl_kernel_entry_point attribute.
+
+// CHECK: TranslationUnitDecl {{.*}}
+
+// A unique kernel name type is required for each declared kernel entry point.
+template<int, int=0> struct KN;
+
+__attribute__((sycl_kernel_entry_point(KN<1>)))
+void skep1() {
+}
+// CHECK: |-FunctionDecl {{.*}} skep1 'void ()'
+// CHECK: | `-SYCLKernelEntryPointAttr {{.*}} KN<1>
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tahonermann wrote:

That is probably right. I'll take a closer look and update as appropriate.

https://github.com/llvm/llvm-project/pull/111389