[Bug fortran/36652] Internal compiler error: in gfc_conv_expr

[j dot wookey at bristol dot ac dot uk]

--- Comment #2 from j dot wookey at bristol dot ac dot uk  2008-07-28 11:02 
---
Updating gfortran to 4.4.0 (20080728) on i386-apple-darwin9.4.0 fixes problem.

Thanks for looking at it!


-- 

j dot wookey at bristol dot ac dot uk changed:

   What|Removed |Added

 Status|WAITING |RESOLVED
 Resolution||FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36652

[Bug fortran/36652] New: Internal compiler error: in gfc_conv_expr

[j dot wookey at bristol dot ac dot uk]

When compiling the code (taken and simplified from FoX, the FORTRAN XML
library):

module charset
 implicit none
 private

 character(len=1), parameter :: SPACE = achar(32)
 character(len=1), parameter :: NEWLINE = achar(10)
 character(len=1), parameter :: CARRIAGE_RETURN = achar(13)
 character(len=1), parameter :: TAB = achar(9)

!  ** taking the last one or two items out of the concatenation allows
compilation 
 character(len=*), parameter :: whitespace =
SPACE//NEWLINE//CARRIAGE_RETURN//TAB

 public :: whitespace

 public :: allowed_encoding

contains

 function allowed_encoding(encoding) result(p)
 character(len=*), intent(in) :: encoding
  logical :: p

  character(len=100) :: enc

  logical :: utf8, usascii, iso88591

!  ** restoring the next line allows compilation
!  utf8 = .false.
  p = utf8.or.usascii.or.iso88591

stop
   end function allowed_encoding 
end module charset

with the command: gfortran -v -save-temps -c testbug.f90
I get an Internal Error:

Using built-in specs.
Target: i386-apple-darwin9.2.0
Configured with: ../gcc-4.4-20080509/configure --enable-languages=fortran
Thread model: posix
gcc version 4.4.0 20080509 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.5.3' '-v' '-save-temps' '-c'
'-mtune=generic'
 /usr/local/libexec/gcc/i386-apple-darwin9.2.0/4.4.0/f951 testbug.f90 -fPIC
-quiet -dumpbase testbug.f90 -mmacosx-version-min=10.5.3 -mtune=generic
-auxbase testbug -version -fintrinsic-modules-path
/usr/local/lib/gcc/i386-apple-darwin9.2.0/4.4.0/finclude -o testbug.s
GNU Fortran (GCC) version 4.4.0 20080509 (experimental)
(i386-apple-darwin9.2.0)
compiled by GNU C version 4.4.0 20080509 (experimental), GMP version
4.2.1, MPFR version 2.2.1.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
testbug.f90: In function ‘allowed_encoding’:
testbug.f90:19: internal compiler error: in gfc_conv_expr, at
fortran/trans-expr.c:3589
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
   Summary: Internal compiler error: in gfc_conv_expr
   Product: gcc
   Version: 4.4.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
    ReportedBy: j dot wookey at bristol dot ac dot uk
 GCC build triplet:  ../gcc-4.4-20080509/configure --enable-
languages=fortran
GCC target triplet: i386-apple-darwin9.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36652

[Bug fortran/34153] New: Unable to debug code compiled with gfortran on MacOSX 10.4.11

[j dot wookey at bristol dot ac dot uk]

Hi,

I'm having a problem using gdb to debug code compiled with gfortran (v 4.3.0).
The code:

  program test
  i = 1
C Breakpoint here
  end

when compiled with "gfortran -gstabs -o prog prog.f", debugged with "gdb prog"
demonstrates the error. 

The commands:

(gdb) break 3
(gdb) run

produces the output:

> Starting program: /private/tmp/prog 
> Reading symbols for shared libraries .++ done
> 
> Breakpoint 1, main (argc=1, argv=0xbfffe9b8) at 
> ../../../gcc-4.3-20070810/libgfortran/fmain.c:12
> 12  ../../../gcc-4.3-20070810/libgfortran/fmain.c: No such file or 
> directory.
>   in ../../../gcc-4.3-20070810/libgfortran/fmain.c

At this point commands to examine symbols fail:

(gdb) display i
No symbol "i" in current context.

The problem is the same on a PowerPC machine also.


-- 
   Summary: Unable to debug code compiled with gfortran on MacOSX
10.4.11
   Product: gcc
   Version: 4.3.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: j dot wookey at bristol dot ac dot uk
  GCC host triplet: i386-apple-darwin


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34153