------- Comment #4 from ebotcazou at gcc dot gnu dot org  2010-03-26 10:54 
-------
> There is a mismatch in a guard expression.  Following patch fixes ICE for me
> (I'm not sure if it makes any sense, though):

No, it isn't correct, because:

/* Return 1 if T is an INTEGER_CST that can be manipulated efficiently on
   the host.  If POS is zero, the value can be represented in a single
   HOST_WIDE_INT.  If POS is nonzero, the value must be non-negative and can
   be represented in a single unsigned HOST_WIDE_INT.  */

int
host_integerp (const_tree t, int pos)


If you pass 1 to host_integerp/tree_low_cst, you must use unsigned HWI.


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43528

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