[Bug fortran/23323] New: Internal compiler error with CHARACTER functions and -fdefault-integer-8

[georg dot denk at infineon dot com]

When compiling the following subroutine test.F:

--- snip ----
      SUBROUTINE BUG(ID,PARNAM)

      IMPLICIT NONE

C     .. Scalar Arguments ..
      CHARACTER *8 PARNAM
      INTEGER      ID

C     .. External Functions ..
      CHARACTER *8 PANAME
      EXTERNAL     PANAME
C
      PARNAM = PANAME(ID)
C
      RETURN
      END
--- snap ----

using 

gfortran -v -save-temps -fdefault-integer-8 -c test.F

gives an internal compiler error:

Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../../gcc-4.0.1/configure --prefix=/tmp2/denk/GCC4.0.1 --exec-p
refix=/tmp2/denk/GCC4.0.1/LINUXAMD64 --enable-languages=c,c++,f95,java --with-gm
p=/tmp2/denk/GCC4.0.1/LINUXAMD64 --with-mpfr=/tmp2/denk/GCC4.0.1
Thread model: posix
gcc version 4.0.1
 /share/kruemel/tmp2/denk/GCC4.0.1/LINUXAMD64/bin/../libexec/gcc/x86_64-unknown-
linux-gnu/4.0.1/cc1 -E -traditional-cpp -D_LANGUAGE_FORTRAN -quiet -v -iprefix /
share/kruemel/tmp2/denk/GCC4.0.1/LINUXAMD64/bin/../lib/gcc/x86_64-unknown-linux-
gnu/4.0.1/ test.F -mtune=k8 -fdefault-integer-8 -fpch-preprocess -o test.f
cc1: warning: command line option "-fdefault-integer-8" is valid for F95 but not
 for C
ignoring nonexistent directory "/share/kruemel/tmp2/denk/GCC4.0.1/LINUXAMD64/bin
/../lib/gcc/x86_64-unknown-linux-gnu/4.0.1/../../../../x86_64-unknown-linux-gnu/
include"
ignoring duplicate directory "/tmp2/denk/GCC4.0.1/LINUXAMD64/lib/gcc/x86_64-unkn
own-linux-gnu/4.0.1/include"
ignoring nonexistent directory "/tmp2/denk/GCC4.0.1/LINUXAMD64/lib/gcc/x86_64-un
known-linux-gnu/4.0.1/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /share/kruemel/tmp2/denk/GCC4.0.1/LINUXAMD64/bin/../lib/gcc/x86_64-unknown-linu
x-gnu/4.0.1/include
 /usr/local/include
 /tmp2/denk/GCC4.0.1/include
 /usr/include
End of search list.
 /share/kruemel/tmp2/denk/GCC4.0.1/LINUXAMD64/bin/../libexec/gcc/x86_64-unknown-
linux-gnu/4.0.1/f951 test.f -ffixed-form -quiet -dumpbase test.F -mtune=k8 -auxb
ase test -version -fdefault-integer-8 -o test.s
GNU F95 version 4.0.1 (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.0.1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
test.F: In function 'bug':
test.F:1: internal compiler error: in gfc_conv_string_tmp, at fortran/trans-expr
.c:782


Removing the option -fdefault-integer-8 gives a sucessful compile.

-- 
           Summary: Internal compiler error with CHARACTER functions and -
                    fdefault-integer-8
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: georg dot denk at infineon dot com
                CC: gcc-bugs at gcc dot gnu dot org,georg dot denk at
                    infineon dot com
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: Linux kruemel 2.4.21-32.0.1.ELsmp #1 SMP Tue Jun 7
                    12:33:30 MEST
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23323