🚀 go-pugleaf

Compiling this cut down example program with "gcc -O file.c":

main() {
	int dev = 0;
	if (((dev + 1) & 1) || ((dev + 1) & 2)) ;
}

gives:
gcc: Internal compiler error: program cc1 got fatal signal 6

Change -O to -O0 and the problem goes away.

The problem occurs both in a gcc 2.7.2 I built for i386-sco3.2v5 and in
one built by robertl@arnet.com (who mailed the patches necessary to host
and target on SCO OpenServer 5 to bug-gcc on Nov 17 1995). For the latter
"gcc -v -O file.c" shows:

Reading specs from /usr/cygnus/progressive-95q4/H-i486-unknown-sco3.2v5.0.0/lib/gcc-lib/i486-unknown-sco3.2v5.0.0/2.7-95q4/specs
gcc version 2.7-95q4
 /usr/cygnus/progressive-95q4/H-i486-unknown-sco3.2v5.0.0/lib/gcc-lib/i486-unkno
wn-sco3.2v5.0.0/2.7-95q4/cpp -lang-c -v -undef -D__GNUC__=2 -D__GNUC_MINOR__=7 -
Asystem(__unix) -Acpu(__i386) -Amachine(__i386) -D__OPTIMIZE__ -D_M_COFF -D_SCO_
COFF -D__i386 -D_SCO_DS=1 -D__unix -D_M_I386 -D_M_XENIX -D_M_UNIX -D_SCO_C_DIALE
CT=1 -D_STRICT_NAMES -D_SCO_XPG_VERS=4 -I/usr/include -D_M_BITFIELDS -D_M_INTERN
AT -D_M_SYSV -D_M_SYS5 -D_M_SYSIII -D_M_WORDSWAP -Di386 -Dunix -DM_I386 -DM_UNIX
 -DM_XENIX -D_M_I86 -D_M_I86SM -D_M_SDATA -D_M_STEXT file.c /usr/tmp/cca004uE.i
GNU CPP version 2.7-95q4 (80386, ATT syntax)
#include "..." search starts here:
#include <...> search starts here:
 /usr/include
 /usr/cygnus/progressive-95q4/H-i486-unknown-sco3.2v5.0.0/lib/gcc-lib/i486-unknown-sco3.2v5.0.0/2.7-95q4/../../../../../include
 /usr/cygnus/progressive-95q4/H-i486-unknown-sco3.2v5.0.0/lib/gcc-lib/i486-unknown-sco3.2v5.0.0/2.7-95q4/../../../../i486-unknown-sco3.2v5.0.0/include
 /usr/cygnus/progressive-95q4/H-i486-unknown-sco3.2v5.0.0/lib/gcc-lib/i486-unknown-sco3.2v5.0.0/2.7-95q4/include
 /usr/include
End of search list.
 /usr/cygnus/progressive-95q4/H-i486-unknown-sco3.2v5.0.0/lib/gcc-lib/i486-unknown-sco3.2v5.0.0/2.7-95q4/cc1 /usr/tmp/cca004uE.i -quiet -dumpbase file.c -O -version -o /usr/tmp/cca004uE.s
GNU C version 2.7-95q4 (80386, ATT syntax) compiled by CC.
gcc: Internal compiler error: program cc1 got fatal signal 6


Disclaimer:  The opinions expressed are mine and not
	     those of The Santa Cruz Operation, Inc.