/gcc/abuild/rguenther/obj/stage1-gcc/gnat1 -quiet -dumpbase g-os_lib.adb -O2 -W
-Wall -fPIC -g -mno-minimal-toc -gnatpg -gnatO g-os_lib.o g-os_lib.adb -o
/dev/null
+===========================GNAT BUG DETECTED==============================+
| 4.2.0 20060601 (experimental) (powerpc64-suse-linux-gnu) GCC error: |
| in change_address_1, at emit-rtl.c:1784 |
| Error detected at g-os_lib.adb:2603:1 |
gcc_assert (memory_address_p (mode, addr));
(gdb) up
#1 0x10564304 in change_address_1 (memref=0x4040ac70, mode=BLKmode,
addr=0x4053f2a0, validate=1) at ../../trunk/gcc/emit-rtl.c:1784
1784 gcc_assert (memory_address_p (mode, addr));
(gdb) print mode
$1 = BLKmode
(gdb) call debug_rtx (addr)
(symbol_ref:SI ("*.LANCHOR1") [flags 0x182])
#1 0x10564304 in change_address_1 (memref=0x4040ac70, mode=BLKmode,
addr=0x4053f2a0, validate=1) at ../../trunk/gcc/emit-rtl.c:1784
#2 0x10565a5c in replace_equiv_address (memref=0x4040ac70, addr=0x4053f2a0)
at ../../trunk/gcc/emit-rtl.c:1965
#3 0x1057c9e4 in use_anchored_address (x=0x4040ac70)
at ../../trunk/gcc/explow.c:592
#4 0x105b2f90 in expand_expr_real_1 (exp=0x400e4ee0, target=0x0,
tmode=SImode, modifier=EXPAND_CONST_ADDRESS, alt_rtl=0x0)
at ../../trunk/gcc/expr.c:6883
...
#11 0x1057a120 in expand_normal (exp=0x40119600) at expr.h:499
#12 0x105771f4 in output_ttype (type=0x40119600, tt_format=155,
tt_format_size=4) at ../../trunk/gcc/except.c:3591
#13 0x10577dc8 in output_function_exception_table ()
at ../../trunk/gcc/except.c:3787
#14 0x105d4d48 in rest_of_handle_final () at ../../trunk/gcc/final.c:3929
#15 0x108f3dbc in execute_one_pass (pass=0x10df2374)
at ../../trunk/gcc/passes.c:864
in expanding of gnat__os_lib__copy_file.
Which breaks bootstrap with Ada on ppc. Maybe related to 21307.
--
Summary: ICE in change_address_1, at emit-rtl.c:1784
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
GCC target triplet: powerpc64-linux-gnu
BugsThisDependsOn: 21307
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27862
