erichkeane added inline comments.

================
Comment at: clang/lib/AST/ExprConstant.cpp:2915
   case BO_EQ:
-    Result = (LHSValue == RHSValue);
+    Result = -(LHSValue == RHSValue);
     break;
----------------
efriedma wrote:
> Using "operator=" to assign an int to an APInt is going to lead to 
> weird/confusing results.  For example, I think this produces the wrong result 
> if you have an int128_t vector.
Can you clarify your comment? The result type of one of these compare-ops is 
either an i8 or an i32 I think, so I would expect it to 'just work', right?  

What problem of operator= on an APInt gives the wrong result?  I guess I've 
never seen/don't know how to repro what you mean.

I DID try to get a test wtih a 'compare op' on an __int128 vector, but that 
ends up asserting in GetSignedVectorType


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D115670/new/

https://reviews.llvm.org/D115670

_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to