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Re: [Bug tree-optimization/32461] [4.3 Regression] Segmentation fault in build_classic_dist_vector_1() at tree-data-ref.c:2700

On 6/24/07, Eric Botcazou <ebotcazou@libertysurf.fr> wrote:
Why are the operands of different type at that point? 

Because there is a STRIP_NOPS in fold_binary and then we look at
BIT_NOT_EXPR's operand which is a NOP_EXPR.  Maybe we should fold
~(int)unsigned_var into (int)~unsigned_var and that would fix the
issue all the time.

As an aside note, I see we might have a type issue with BIT_NOT_EXPR:

     else if (TREE_CODE (arg0) == BIT_NOT_EXPR)
       return TREE_OPERAND (arg0, 0);

if we have ~(int)~unsigned_int, we will get the incorrect type returned.

Thanks,
Andrew Pinski

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