Re: c/10083: alpha: ICE while building swi-prolog-packages

[Falk Hueffner <falk dot hueffner at student dot uni-tuebingen dot de>]

The following reply was made to PR c/10083; it has been noted by GNATS.

From: Falk Hueffner <falk dot hueffner at student dot uni-tuebingen dot de>
To: gcc-gnats at gcc dot gnu dot org
Cc: 184749 at bugs dot debian dot org, gcc-bugs at gcc dot gnu dot org, rmurray at debian dot org
Subject: Re: c/10083: alpha: ICE while building swi-prolog-packages
Date: 16 Mar 2003 15:56:47 +0100

 Falk Hueffner <falk dot hueffner at student dot uni-tuebingen dot de> writes:
 
 > a slightly smaller test case is:
 > 
 > static unsigned long getTimeEvent(unsigned long time)
 > {
 >     return time % ((1UL << 62) - 1);
 > }
 
 The problem is that expand_divmod generates a zero extension of a
 constant, which is VOIDmode:
 
 (insn 11 10 12
       (nil)
       (set (reg:DI 72)
 	   (truncate:DI (lshiftrt:TI (mult:TI (zero_extend:TI (reg/v:DI 70 [time]))
 					      (zero_extend:TI (const_int 65 [0x41])))
 				     (const_int 64 [0x40])))) -1 (nil)
 				     (nil))
 
 Should expand_divmod not generate this, or should
 simplify_unary_operation be able to handle it?
 
 -- 
 	Falk