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Article #6195gcc-2.7.2 DEC-Alpha optimizer bug
From: Stephan Muehlstrasser
Date: Tue, 09 Jan 1996 00:00
Date: Tue, 09 Jan 1996 00:00
54 lines
1815 bytes
1815 bytes
Hi,
with the attached nonsense C-fragment gcc-2.7.2 on DEC Alpha dies
with signal 6 when optimization is turned on.
Output of Session follows (long lines broken up):
Richard$1 uname -a
OSF1 Richard V3.2 214 alpha
Richard$1 gcc -O2 -v -c foo.i
Reading specs from /usr/local/lib/gcc-lib/alpha-dec-osf3.2/2.7.2/specs
gcc version 2.7.2
/usr/local/lib/gcc-lib/alpha-dec-osf3.2/2.7.2/cc1 foo.i -quiet -O2
-version -o /tmp/ccaatlxa.s
GNU C version 2.7.2 compiled by GNU C version 2.7.2.
gcc: Internal compiler error: program cc1 got fatal signal 6
-------------------------------- file foo.i ---------------------------
typedef struct _A
{
unsigned short int a;
unsigned short int b;
} A, *PA;
typedef struct _B
{
short int c;
short int d;
} B, *PB;
typedef struct _C
{
unsigned char e;
} C, *PC;
int x(f)
PC f;
{
PA g;
short int h;
if (g->a)
{
ICcltdb (&h , f);
}
if (!(h & 0x0010 && g->b) && (!(h & 0x0020 ) || !(h & 0x0040 )))
{
}
return 0;
}
-------------------------------- file foo.i ---------------------------
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Stephan Muehlstrasser
InterFace Connection GmbH, 82008 Unterhaching, Leipziger Str. 16
Tel.: +49-89-61049220, Fax: +49-89-6104985
email: sm@ifconnection.de
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 113d02,40c3ea5f6045c286,start X-Google-Attributes: gid113d02,public From: stephan@ifconnection.DE (Stephan Muehlstrasser) Subject: gcc-2.7.2 DEC-Alpha optimizer bug Date: 1996/01/09 Message-ID: <m0tZhRM-000DbVC@Freddie.ifconnection.de> X-Deja-AN: 134573126 distribution: gnu sender: daemon@cis.ohio-state.edu organization: GNUs Not Usenet newsgroups: gnu.gcc.bug