Bug in gcc-2.1 for VAX

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1 total messages Started by Tony Hosking Mon, 13 Apr 1992 13:12

#380

Author: Tony Hosking
Date: Mon, 13 Apr 1992 13:12

31 lines
1332 bytes

There seems to be a pattern missing from the vax.md machine description in
gcc-2.1 to dealing with indexed indirect jumps.  The program:

extern void *table[];

void try (int i) {
  goto *table[i];
}

gives the following error message when compiled with gcc-2.1 on a VAX running
Ultrix 4.1:

try.c: In function `test':
try.c:5: internal error--unrecognizable insn:
(jump_insn 8 7 9 (set (pc)
       (mem/s:SI (plus:SI (mult:SI (reg:SI 20)
                   (const_int 4))
               (symbol_ref:SI ("table"))))) -1 (nil)
   (nil))
gcc: Internal compiler error: program cc1 got fatal signal 4

I'd appreciate any help in updating the machine description.

Thanks,

		Tony Hosking
Papernet:	Dept. of Computer Science
		University of Massachusetts			 _--_|\
		Amherst, MA 01003				/      \
Voicenet:	(413) 545-0256					\_.--._/    )
Internet:	hosking@cs.umass.edu				      v    /

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