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* [Bug c/14338] New: internal compiler error dp-bits.c line 412 (thumb)
@ 2004-02-29 0:17 duane_ellis at franklin dot com
2004-02-29 0:20 ` [Bug c/14338] " duane_ellis at franklin dot com
2004-02-29 0:23 ` [Bug target/14338] " pinskia at gcc dot gnu dot org
0 siblings, 2 replies; 3+ messages in thread
From: duane_ellis at franklin dot com @ 2004-02-29 0:17 UTC (permalink / raw)
To: gcc-bugs
Internal compiler error in the soft-float library when building the THUMB
version (Multilib)
------
GCC was configured with: (From gcc/config.status)
# ./configure --host=i686-pc-linux-gnu --target=arm-elf
--prefix=/proj/ua/duane/install --exec-prefix=/proj/ua/duane/install/i686
--with-gcc-version-trigger=/proj/ua/duane/gcc-3.3.3/gcc/version.c --with-newlib
--with-local-prefix=/proj/ua/duane/install/i686/sys-root --without-headers
--enable-threads=no --enable-symvers=gnu --enable-__cxa_atexit
--enable-languages=c --disable-nls --disable-shared --cache-file=../config.cache
------
It dies during a the multi-lib build with this message:
./xgcc -B./ -B/proj/ua/duane/install/i686/arm-elf/bin/ -isystem
/proj/ua/duane/install/i686/arm-elf/include -isystem
/proj/ua/duane/install/i686/arm-elf/sys-include -O2 -DIN_GCC -DCROSS_COMPILE
-W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem
./include -Dinhibit_libc -fno-inline -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
-Dinhibit_libc -I. -I. -I. -I./. -I./config -I./../include
-DFINE_GRAINED_LIBRARIES -mthumb -DL_pack_df -c dp-bit.c -o libgcc/thumb/_pack_df.o
dp-bit.c: In function `__pack_d':
dp-bit.c:411: error: insn does not satisfy its constraints:
(insn:HI 333 331 561 0x401b5ec8 (set (reg:HI 3 r3 [109])
(mem:HI (label_ref 584) [0 S2 A16])) 169 {*thumb_movhi_insn}
(insn_list:REG_DEP_ANTI 330 (insn_list:REG_DEP_OUTPUT 329 (nil)))
(expr_list:REG_EQUIV (const_int 2047 [0x7ff])
(nil)))
dp-bit.c:411: internal compiler error: in extract_constrain_insn_cached, at
recog.c:2090
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[1]: *** [libgcc/thumb/_pack_df.o] Error 1
make[1]: Leaving directory `/proj/ua/duane/gcc-3.3.3/gcc'
make: *** [stmp-multilib] Error 2
--------
I reduced the orginal 'gcc/dp-bits.c' to a *MUCH* smaller file, see below:
typedef float DFtype __attribute__ ((mode (DF)));
typedef unsigned int UDItype __attribute__ ((mode (DI)));
typedef UDItype fractype;
typedef DFtype FLO_type;
typedef struct
{
int normal_exp;
} fp_number_type;
typedef union
{
FLO_type value;
struct
{
fractype fraction:52 __attribute__ ((packed));
unsigned int exp:11 __attribute__ ((packed));
}
bits;
}
FLO_union_type;
extern FLO_type __pack_d ( fp_number_type * );
FLO_type
__pack_d ( fp_number_type * src)
{
FLO_union_type dst;
dst.bits.exp = src->normal_exp + 1023;
return dst.value;
}
-----------------
Compiling it with this greatly reduced cc1 command line:
/proj/ua/duane/gcc-3.3.3/gcc/cc1 -mthumb -g -O2 -o /tmp/ccpl5DQK.s foo2.i
Will reproduce the bug.
------------------
If you remove the -O2 option it works.
Thanks.
--
Summary: internal compiler error dp-bits.c line 412 (thumb)
Product: gcc
Version: 3.3.3
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: duane_ellis at franklin dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: arm-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14338
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c/14338] internal compiler error dp-bits.c line 412 (thumb)
2004-02-29 0:17 [Bug c/14338] New: internal compiler error dp-bits.c line 412 (thumb) duane_ellis at franklin dot com
@ 2004-02-29 0:20 ` duane_ellis at franklin dot com
2004-02-29 0:23 ` [Bug target/14338] " pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: duane_ellis at franklin dot com @ 2004-02-29 0:20 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From duane_ellis at franklin dot com 2004-02-29 00:20 -------
Created an attachment (id=5818)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5818&action=view)
the reduced pre-processed example
Not sure the inlined comment will be usable - so I'm attaching the offending
files.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14338
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug target/14338] internal compiler error dp-bits.c line 412 (thumb)
2004-02-29 0:17 [Bug c/14338] New: internal compiler error dp-bits.c line 412 (thumb) duane_ellis at franklin dot com
2004-02-29 0:20 ` [Bug c/14338] " duane_ellis at franklin dot com
@ 2004-02-29 0:23 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-02-29 0:23 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-02-29 00:23 -------
This is a dup of bug 14166 which is fixed for 3.3.4 (this time is I did not get it wrong).
*** This bug has been marked as a duplicate of 14166 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Component|c |target
Resolution| |DUPLICATE
Target Milestone|--- |3.3.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14338
^ permalink raw reply [flat|nested] 3+ messages in thread
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2004-02-29 0:17 [Bug c/14338] New: internal compiler error dp-bits.c line 412 (thumb) duane_ellis at franklin dot com
2004-02-29 0:20 ` [Bug c/14338] " duane_ellis at franklin dot com
2004-02-29 0:23 ` [Bug target/14338] " pinskia at gcc dot gnu dot org
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