[clang] [Clang][SPIRV] Add __spirv_event_t builtin type (PR #207077)

[Tom Honermann via cfe-commits]

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@@ -1141,6 +1141,15 @@ llvm::DIType *CGDebugInfo::CreateType(const BuiltinType *BT) {
     return SingletonId;                                                        \
   }
 #include "clang/Basic/AMDGPUTypes.def"
+#define SPIRV_TYPE(Name, Id, SingletonId)                                      \
+  case BuiltinType::Id: {                                                      \
+    if (!SingletonId)                                                          \
+      SingletonId =                                                            \
+          DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_structure_type, Name, \
+                                     TheCU, TheCU->getFile(), 0);              \
+    return SingletonId;                                                        \
+  }
+#include "clang/Basic/SPIRVTypes.def"
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tahonermann wrote:

Perhaps this can call `getOrCreateStructPtrType()` as is done for `EXT_OPAQUE_TYPE`? That would build a pointer to the opaque structure instead of just the opaque structure type.

https://github.com/llvm/llvm-project/pull/207077