This is the mail archive of the
gcc-prs@gcc.gnu.org
mailing list for the GCC project.
optimization/3712: abort in gen_umulsi3_highpart
- To: gcc-gnats at gcc dot gnu dot org
- Subject: optimization/3712: abort in gen_umulsi3_highpart
- From: Andreas Schwab <schwab at suse dot de>
- Date: Tue, 17 Jul 2001 18:25:26 +0200
>Number: 3712
>Category: optimization
>Synopsis: abort in gen_umulsi3_highpart
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: ice-on-legal-code
>Submitter-Id: net
>Arrival-Date: Tue Jul 17 09:26:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:
>Release: 3.1 20010717 (experimental)
>Organization:
>Environment:
System: Linux sykes 2.4.4-SMP #1 SMP Fri Jun 8 09:14:46 GMT 2001 ia64 unknown
Architecture: ia64
host: ia64-unknown-linux-gnu
build: ia64-unknown-linux-gnu
target: m68k-unknown-linux-gnu
configured with: /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) : (reconfigured) : (reconfigured) : (reconfigured) : (reconfigured) : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as --disable-shared
>Description:
Compiler is aborting in gen_umulsi3_highpart because
const_uint32_operand returns false. Looks like a sign extension
bug, due to host being 64bit. Offending rtx is (const_int
-858993459 [0xffffffffcccccccd]).
>How-To-Repeat:
$ cat x.i
char *
_itoa_word (unsigned long value, char *buflim,
unsigned int base, int upper_case)
{
extern const char _itoa_upper_digits[], _itoa_lower_digits[];
const char *digits = upper_case ? _itoa_upper_digits : _itoa_lower_digits;
char *bp = buflim;
switch (base)
{
case 10: do *--bp = digits[value % 10]; while ((value /= 10) != 0); break;
case 16: do *--bp = digits[value % 16]; while ((value /= 16) != 0); break;
case 8: do *--bp = digits[value % 8]; while ((value /= 8) != 0); break;
default:
do
*--bp = digits[value % base];
while ((value /= base) != 0);
}
return bp;
}
$ m68k-linux-gcc x.i -S -v
Reading specs from /usr/local/m68k-linux/lib/gcc-lib/m68k-linux/3.1/specs
Configured with: /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) : (reconfigured) : (reconfigured) : (reconfigured) : (reconfigured) : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --enable-shared --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as : (reconfigured) /cvs/gcc/configure --target=m68k-linux --prefix=/usr/local/m68k-linux --enable-languages=c++ --with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld --with-as=/usr/local/m68k-linux/m68k-linux/bin/as --disable-shared
Thread model: single
gcc version 3.1 20010717 (experimental)
/usr/local/m68k-linux/lib/gcc-lib/m68k-linux/3.1/cc1 -fpreprocessed x.i -quiet -dumpbase x.i -version -o x.s
GNU CPP version 3.1 20010717 (experimental) (cpplib) (68k GNU/Linux with ELF)
GNU C version 3.1 20010717 (experimental) (m68k-linux)
compiled by GNU C version 2.96-ia64-000717 snap 001117.
x.i: In function `_itoa_word':
x.i:11: Internal compiler error in gen_umulsi3_highpart, at insn-emit.c:3021
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: