[PATCH] D38861: [CodeGen] Error on unsupported checked multiplies early

[John McCall via Phabricator via cfe-commits]

rjmccall added inline comments.


================
Comment at: lib/CodeGen/CGBuiltin.cpp:2263
+      }
+    }
+
----------------
Is there a reason this only fails on x86?  If LLVM doesn't have generic wide-operation lowering, this probably needs to be a target whitelist rather than a blacklist.


https://reviews.llvm.org/D38861