[PATCH] [Patch] UBsan: Type-based blacklisting

[Alexey Samsonov]

LGTM modulo nit below. Let me know if I should commit this for you. Test in Clang is fine, but I would also add an "end-to-end" test case in compiler-rt ubsan lit test-suite. This can of course be done separately. Thanks!

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Comment at: test/CodeGen/ubsan-type-blacklist.cpp:20
@@ +19,3 @@
+// DEFAULT: call void @__ubsan_handle_dynamic_type_cache_miss({{.*}} (%class.Bar* @bar to
+// TYPE-NOT: call void @__ubsan_handle_dynamic_type_cache_miss({{.*}} (%class.Bar* @bar to
+  Foo* foo = static_cast<Foo*>(&bar); // down-casting
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I'd use less restrictive pattern for TYPE-NOT, smth. like
  TYPE-NOT: @__ubsan_handle_dynamic_type_cache_miss

http://reviews.llvm.org/D4407