[Bug bootstrap/13722] New: [3.4/3.5 regression] [ia64] Ada bootstrap failure

["schwab at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>]

Triggered by this change: 
 
2004-01-15  Zack Weinberg  <zack@codesourcery.com> 
 
	* config/ia64/ia64.md (*movti_internal): C output template 
	extracted to ia64.c. 
	(*movti_internal_reg): Delete. 
	(reload_inti, reload_outti): Use the correct mode on operand 2 
	in the first place, don't fix it up in the output template. 
	(movtf, reload_ointf, reload_outtf): New expanders. 
	(*movtf_internal): New define_insn_and_split. 
	* config/ia64/ia64.c (ia64_split_timode): Rename to ia64_split_tmode; 
	make static; do not hand TFmode CONST_DOUBLEs to split_double. 
	(ia64_split_tmode_move): New function, body mostly pulled 
	from ia64.md:*movti_internal. 
	(ia64_function_arg_words): New function, extracted common 
	logic from ia64_function_arg et seq. 
	(ia64_function_arg_offset): Likewise.  Handle correctly the 
	case of a scalar quantity 16 bytes wide with only 8-byte alignment. 
	(ia64_function_arg, ia64_function_arg_partial_nregs) 
	(ia64_function_arg_advance): Use ia64_function_arg_words and 
	ia64_function_arg_offset. 
	(ia64_function_value): TCmode does not go in float regs. 
	(ia64_secondary_reload_class): Also handle TFmode. 
	* config/ia64/ia64-protos.h: Remove prototype for 
	ia64_split_timode; add prototype for ia64_split_tmode_move. 
 
stage1/xgcc -Bstage1/ -B/usr/local/ia64-suse-linux/bin/ -c -g -O2      -gnatpg 
-gnata -I- -I. -Iada -I../../gcc/ada ../../gcc/ada/a-elchha.adb -o 
ada/a-elchha.o 
+===========================GNAT BUG DETECTED==============================+ 
| 3.5.0 20040117 (experimental) (ia64-suse-linux-gnu) GCC error:           | 
| in push_secondary_reload, at reload.c:427                                | 
| Error detected at a-elchha.adb:104:8                                     | 
 
(gdb) r 
Starting program: /tmp/cvs/gcc-test-2004011604/Build/gcc/stage1/gnat1 -I- -I. 
-Iada -I../../gcc/ada -quiet -dumpbase a-elchha.adb -g -gnatpg -gnata -O2 
-gnatO ada/a-elchha.o ../../gcc/ada/a-elchha.adb 
 
Breakpoint 1, fancy_abort (file=0x40000000013999a0 "../../gcc/reload.c",  
    line=427, function=0x40000000013999b8 "push_secondary_reload") 
    at ../../gcc/diagnostic.c:584 
584       internal_error ("in %s, at %s:%d", function, trim_filename (file), 
line); 
(gdb) up 
#1  0x4000000000e06a70 in push_secondary_reload (in_p=1, x=0x2000000000582da0,  
    opnum=1, optional=0, reload_class=GR_REGS, reload_mode=TImode,  
    type=RELOAD_FOR_INPUT_ADDRESS, picode=0x60000fffffff6ed8) 
    at ../../gcc/reload.c:427 
427         abort (); 
(gdb) l 
422          Allow this when a reload_in/out pattern is being used.  I.e. 
assume 
423          that the generated code handles this case.  */ 
424 
425       if (in_p && class == reload_class && icode == CODE_FOR_nothing 
426           && t_icode == CODE_FOR_nothing) 
427         abort (); 
428 
429       /* If we need a tertiary reload, see if we have one we can reuse or 
else 
430          make a new one.  */ 
431 
(gdb) p class 
$1 = GR_REGS 
(gdb) p x 
$2 = 0x2000000000582da0 
(gdb) pr 
(mem:TI (plus:DI (reg/f:DI 12 r12) 
        (const_int 736 [0x2e0])) [17 buff+0 S16 A128])

-- 
           Summary: [3.4/3.5 regression] [ia64] Ada bootstrap failure
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Keywords: build
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: zack at codesourcery dot com
        ReportedBy: schwab at suse dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: ia64-linux
  GCC host triplet: ia64-linux
GCC target triplet: ia64-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13722