🚀 go-pugleaf

The following program causes the 2.2.2 compiler (mips-dec-ultrix) to abort
with a signal 11.  For the compiler to abort both the -g flag and one of
-funroll-loops or -funroll-all-loops must be specified.

In the program the macro FrequencY usually inserts some accounting code
into the my programs.  Here I have removed all of that stuff and just made
it null.  If you were to remove the ";" from "({;})" the compiler would not
abort.

Thanks

	Dan

Here are the full command lines and the gdb traceback:
------------------------------------------------------
Reading specs from /homes/gws/drk/vlsi-mount/gcc-2.2.2/specs
gcc version 2.2.2
 /homes/gws/drk/vlsi-mount/gcc-2.2.2/cpp -lang-c -v -undef -D__GNUC__=2 -D__ANSI_COMPAT -DMIPSEL -DR3000 -DSYSTYPE_BSD -D_SYSTYPE_BSD -Dbsd4_2 -Dhost_mips -Dmips -Dultrix -Dunix -D__ANSI_COMPAT -D__MIPSEL__ -D__R3000__ -D__SYSTYPE_BSD__ -D___SYSTYPE_BSD__ -D__bsd4_2__ -D__host_mips__ -D__mips__ -D__ultrix__ -D__unix__ -D__ANSI_COMPAT -D__MIPSEL -D__R3000 -D__SYSTYPE_BSD -D___SYSTYPE_BSD -D__bsd4_2 -D__host_mips -D__mips -D__ultrix -D__unix -D__OPTIMIZE__ -g -D__LANGUAGE_C__ -D__LANGUAGE_C -DLANGUAGE_C mts.
e.d.c mts.e.d.i
GNU CPP version 2.2.2 [AL 1.1, MM 19] DECstation running ultrix
 /homes/gws/drk/vlsi-mount/gcc-2.2.2/cc1 mts.e.d.i -mgpopt -quiet -dumpbase mts.e.d.c -g -O2 -version -funroll-loops -o mts.e.d.s
GNU C version 2.2.2 [AL 1.1, MM 19] DECstation running ultrix compiled by CC.
/homes/gws/drk/vlsi-mount/gcc-2.2.2/gcc: Internal compiler error: program cc1 got fatal signal 11

% gdb /homes/gws/drk/vlsi-mount/gcc-2.2.2/cc1
GDB 3.5, Copyright (C) 1989 Free Software Foundation, Inc.
There is ABSOLUTELY NO WARRANTY for GDB; type "info warranty" for details.
GDB is free software and you are welcome to distribute copies of it
 under certain conditions; type "info copying" to see the conditions.
Reading symbol data from /homes/gws/drk/vlsi-mount/gcc-2.2.2/cc1...done.
Type "help" for a list of commands.
(gdb) run mts.e.d.i -mgpopt -quiet -dumpbase mts.e.d.c -g -O2 -version -funroll-loops -o mts.e.d.s
Starting program: /homes/gws/drk/vlsi-mount/gcc-2.2.2/cc1 mts.e.d.i -mgpopt -quiet -dumpbase mts.e.d.c -g -O2 -version -funroll-loops -o mts.e.d.s
GNU C version 2.2.2 [AL 1.1, MM 19] DECstation running ultrix compiled by CC.

Program received signal 11, Segmentation fault
0x453af0 in find_loop_tree_blocks (f=(struct rtx_def *) 0x1003a198) (stmt.c line 4610)
stmt.c: No such file or directory.
(gdb) where
#0  0x453af0 in find_loop_tree_blocks (f=(struct rtx_def *) 0x1003a198) (stmt.c line 4610)
#1  0x4b6120 in loop_optimize (f=(struct rtx_def *) 0x1003a198, dumpfile=(struct _iobuf *) 0x0) (loop.c line 441)
#2  0x4289d4 in rest_of_compilation (decl=(union tree_node *) 0x1004f410) (toplev.c line 2168)
#3  0x41412c in finish_function (nested=0) (c-decl.c line 5684)
#4  0x400a2c in yyparse () (bison.simple line 329)
#5  0x427470 in compile_file (name=(char *) 0x7fffbc18 "mts.e.d.i") (toplev.c line 1638)
#6  0x42ab00 in main (argc=12, argv=(char **) 0x7fffbb64, envp=(char **) 0x7fffbb98) (toplev.c line 3055)
(gdb) 


Program follows:
----------------
#define FrequencY(x) ({;})

typedef long int 	integer;
typedef float 	real;
typedef double 	doublereal;

real  sig0[100];

int finit4_bv(dt,wb,cell,facm,ipfl)
real dt,wb,cell,facm;
integer ipfl;
{
  doublereal phit[16];

  doublereal p0[16];

  integer ks;

  extern int matmlt_bv4x4();

  doublereal tm1[16];

  integer ksm;

  for ((FrequencY(1),(ks = 1));(FrequencY(16),(ks<=15));(FrequencY(15),(++ks)))
    {
      if ((FrequencY(15),(ks==1)))
	{
	  (FrequencY(1),(matmlt_4x4bv(p0,phit,tm1)));
	}
    }
}