[Bug fortran/30979] New: internal compiler error -ff2c

[tim dot bevan at 1spatial dot com]

gcc version 4.1.0 (SUSE Linux)

Trivial file fails to compile with -ff2c:

gcc orient.f -ff2c -c -O -Wall -o orient.o
orient.f: In function 'angnrm':
orient.f:1: internal compiler error: in emit_move_insn, at expr.c:3158
Please submit a full bug report,
with preprocessed source if appropriate.

Omitting the -ff2c compiles the file. 

A different machine compiles this fine:
gcc version 4.0.2 20050901 (prerelease) (SUSE Linux)
- although the output code differs depending on the -ff2c option.


-- 
   Summary: internal compiler error -ff2c
   Product: gcc
   Version: 4.1.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tim dot bevan at 1spatial dot com
  GCC host triplet: i586-suse-linux
GCC target triplet: i586-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30979

[Bug fortran/30979] internal compiler error -ff2c

[tim dot bevan at 1spatial dot com]

--- Comment #1 from tim dot bevan at 1spatial dot com  2007-02-27 12:21 
---
Created an attachment (id=13119)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13119action=view)
trimmed down source file

Just the ont function that provokes the problem.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30979

[Bug fortran/30979] internal compiler error -ff2c

[tim dot bevan at 1spatial dot com]

--- Comment #3 from tim dot bevan at 1spatial dot com  2007-02-27 13:51 
---
Unfortunately it is not possible to test that here at the moment. This is not
critical as I can avoid needing this code. Not sure if we do actually need to
specify the -ff2c flag anyway, I have a report that we needed it to compile
other code with the earlier compiler. 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30979

[Bug fortran/30979] internal compiler error -ff2c

[tim dot bevan at 1spatial dot com]

--- Comment #4 from tim dot bevan at 1spatial dot com  2007-02-27 15:03 
---
Having got gcc 4.1.3 (which supplied 4.1.2 prerelease) and some newer version
of the GMP library installed.

gcc --version
gcc (GCC) 4.1.2 20061115 (prerelease) (SUSE Linux)

The problem still occurs 

gcc orient.f -ff2c -c -O -Wall -o orient.o
orient.f: In function 'angnrm':
orient.f:1: internal compiler error: in emit_move_insn, at expr.c:3162
Please submit a full bug report,
with preprocessed source if appropriate.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30979