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Re: SIZE_TYPE


Aurelien Buhrig <aurelien.buhrig.gcc@gmail.com> writes:

> Thanks, but when I do so, gcc ICE in build2_stat, at tree.c:3112,
> while compiling libgcc2 (__gcc_bcmp) during ivopt pass.
> __gcc_bcmp uses a size_t as loop iv.
>
> Here is the failed assert:
>   if ((code == MINUS_EXPR || code == PLUS_EXPR || code == MULT_EXPR)
>       && arg0 && arg1 && tt && POINTER_TYPE_P (tt))
>     gcc_assert (TREE_CODE (arg0) == INTEGER_CST && TREE_CODE (arg1) ==
> INTEGER_CST);
>
> while I have
> code == PLUS_EXPR,
> TREE_CODE (arg0) = SSA_NAME and TREE_CODE(arg1) == NOP_EXPR.
>
>
> I have no such pb when I define size_t as an unsigned int (HImode),
> which is different from my Pmode=PSI mode (32bits).
>
> Any idea where it may come from ? Bad macro definition in my target.h ?

You would have to look at the caller of build2_stat to see what is
happening here.  It seems a bit odd that changing the size of SIZE_TYPE
causes something to be POINTER_TYPE_P.

Ian


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