[clang] [Clang][CodeGen] Emit “trap reasons” on UBSan traps (PR #145967)

[Thurston Dang via cfe-commits]

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@@ -2595,6 +2595,16 @@ def fsanitize_undefined_trap_on_error
 def fno_sanitize_undefined_trap_on_error
     : Flag<["-"], "fno-sanitize-undefined-trap-on-error">, Group<f_clang_Group>,
       Alias<fno_sanitize_trap_EQ>, AliasArgs<["undefined"]>;
+defm sanitize_annotate_debug_info_traps
+    : BoolFOption<
+          "sanitize-annotate-debug-info-traps",
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thurstond wrote:

`-fsanitize-annotate-debug-info-traps` could be confusing: it sounds like a subset of `-fsanitize-annotate-debug-info` (i.e., the functionality of `-fsanitize-annotate-debug-info` but only for UBSan trap mode), rather than complementary.


https://github.com/llvm/llvm-project/pull/145967