[clang] [SYCL] Disable RTTI for SYCL device code (PR #68020)

[via cfe-commits]

https://github.com/elizabethandrews created https://github.com/llvm/llvm-project/pull/68020

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>From d15c78fbce7b00de68fa65976ad86278492c07ed Mon Sep 17 00:00:00 2001
From: Elizabeth Andrews <elizabeth.andrews at intel.com>
Date: Mon, 2 Oct 2023 09:36:35 -0700
Subject: [PATCH] [SYCL] Disable RTTI for SYCL device code

---
 clang/lib/CodeGen/CodeGenModule.h           |  1 +
 clang/test/CodeGenSYCL/virtual-function.cpp | 24 +++++++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 clang/test/CodeGenSYCL/virtual-function.cpp

diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 073b471c6e3cc11..06aa78ba493ae19 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -935,6 +935,7 @@ class CodeGenModule : public CodeGenTypeCache {
   // Return whether RTTI information should be emitted for this target.
   bool shouldEmitRTTI(bool ForEH = false) {
     return (ForEH || getLangOpts().RTTI) && !getLangOpts().CUDAIsDevice &&
+           !getLangOpts().SYCLIsDevice &&
            !(getLangOpts().OpenMP && getLangOpts().OpenMPIsTargetDevice &&
              getTriple().isNVPTX());
   }
diff --git a/clang/test/CodeGenSYCL/virtual-function.cpp b/clang/test/CodeGenSYCL/virtual-function.cpp
new file mode 100644
index 000000000000000..5549f49f397c2be
--- /dev/null
+++ b/clang/test/CodeGenSYCL/virtual-function.cpp
@@ -0,0 +1,24 @@
+// RUN: %clang_cc1 -fsycl-is-device -triple spir64 -disable-llvm-passes -emit-llvm %s -o - | FileCheck %s
+
+// Test verifying that RTTI information is not emitted
+// during SYCL device compilation.
+
+// CHECK-NOT: @_ZTI6Struct
+ 
+template <typename name, typename Func>
+__attribute__((sycl_kernel)) void kernel_single_task(const Func &kernelFunc) {
+  kernelFunc();
+}
+
+struct Struct {
+  virtual void foo() {}
+  void bar() {}
+
+};
+
+int main() {
+  kernel_single_task<class kernel_function>([]() {
+                                            Struct S;
+                                            S.bar(); });
+  return 0;
+}