[llvm] [Offload] Store kernel name in GenericKernelTy (PR #142799)

[Joseph Huber via llvm-commits]

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@@ -256,7 +256,12 @@ class DeviceImageTy {
 struct GenericKernelTy {
   /// Construct a kernel with a name and a execution mode.
   GenericKernelTy(const char *Name)
-      : Name(Name), PreferredNumThreads(0), MaxNumThreads(0) {}
+      : Name(Name), PreferredNumThreads(0), MaxNumThreads(0) {
+    // Ensure that the name is null terminated so getName() can just return the
+    // pointer
+    this->Name.push_back('\0');
+    this->Name.pop_back();
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jhuber6 wrote:

For that I'd just make a variant that returns a string ref with the correct size, if it's a private variable it's reasonable to hide some details from users. You can use a `std::string` if you want, up to you.

https://github.com/llvm/llvm-project/pull/142799