[clang] [clang][CodeGen] Added SanitizerHandler mapping, trap messages in debug info, and corresponding test cases. (PR #143758)

[via cfe-commits]

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@@ -4051,6 +4144,14 @@ void CodeGenFunction::EmitTrapCheck(llvm::Value *Checked,
 
   llvm::BasicBlock *&TrapBB = TrapBBs[CheckHandlerID];
 
+  llvm::DILocation *TrapLocation = Builder.getCurrentDebugLocation();
+  llvm::StringRef Category = GetTrapMessageForHandler(CheckHandlerID);
+
+  if (getDebugInfo() && !Category.empty()) {
+    TrapLocation = getDebugInfo()->CreateTrapFailureMessageFor(
+        TrapLocation, Category, TrapMessage);
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anthonyhatran wrote:

Yes, you are correct on that. I didn't initially intend on having the `TrapMessage `part there at all until I examined `CreateTrapFailureMessageFor `which required it, which was why I left it like so. I think a possible approach could be to put the `SanitizerHandler`'s name as the category, and have the `GetTrapMessageForHandler `deal with the `TrapMessage`, but let me know if it would be preferable to have it more general with "`UBSan Trap`" instead

https://github.com/llvm/llvm-project/pull/143758