gcc/testsuite/g77.f-torture/compile/980310-2.f

   1 C unable to confirm this bug on egcs 1.0.1 for i586-pc-sco3.2v5.0.4 robertl
   2 C
   3 C Date: Sat, 23 Aug 1997 00:47:53 -0400 (EDT)
   4 C From: David Bristow <dbristow@lynx.dac.neu.edu>
   5 C To: egcs-bugs@cygnus.com
   6 C Subject: g77 crashes compiling Dungeon
   7 C Message-ID: <Pine.OSF.3.91.970823003521.11281A-100000@lynx.dac.neu.edu>
   8 C
   9 C The following small segment of Dungeon (the adventure that became the
  10 C commercial hit Zork) causes an internal error in f771.  The platform is
  11 C i586-pc-linux-gnulibc1, the compiler is egcs-ss-970821 (g77-GNU Fortran
  12 C 0.5.21-19970811)
  13 C
  14 C --cut here--cut here--cut here--cut here--cut here--cut here--
  15 C g77 --verbose -fugly -fvxt -c subr_.f
  16 C g77 version 0.5.21-19970811
  17 C  gcc --verbose -fugly -fvxt -xf77 subr_.f -xnone -lf2c -lm
  18 C Reading specs from /usr/lib/gcc-lib/i586-pc-linux-gnulibc1/egcs-2.90.01/specs
  19 C gcc version egcs-2.90.01 970821 (gcc2-970802 experimental)
  20 C  /usr/lib/gcc-lib/i586-pc-linux-gnulibc1/egcs-2.90.01/f771 subr_.f -fset-g77-defaults -quiet -dumpbase subr_.f -version -fversion -fugly -fvxt -o /tmp/cca23974.s
  21 C f771: warning: -fugly is overloaded with meanings and likely to be removed;
  22 C f771: warning: use only the specific -fugly-* options you need
  23 C GNU F77 version egcs-2.90.01 970821 (gcc2-970802 experimental) (i586-pc-linux-gnulibc1) compiled by GNU C version egcs-2.90.01 970821 (gcc2-970802 experimental).
  24 C GNU Fortran Front End version 0.5.21-19970811
  25 C f/com.c:941: failed assertion `TYPE_PRECISION (type) <= TYPE_PRECISION (TREE_TYPE (e))'
  26 C gcc: Internal compiler error: program f771 got fatal signal 6
  27 C --cut here--cut here--cut here--cut here--cut here--cut here--
  28 C
  29 C Here's the FORTRAN code, it's basically a single subroutine from subr.f
  30 C in the Dungeon source, slightly altered (the original calls RAN(), which
  31 C doesn't exist in the g77 runtime)
  32 C
  33 C RND - Return a random integer mod n
  34 C
  35         INTEGER FUNCTION RND (N)
  36         IMPLICIT INTEGER (A-Z)
  37         REAL RAND
  38         COMMON /SEED/ RNSEED
  39
  40         RND = RAND(RNSEED)*FLOAT(N)
  41         RETURN
  42
  43         END