Bug 163376

Summary: gfortran internal compiler error: Segmentation fault
Product: [Fedora] Fedora Reporter: Orion Poplawski <orion>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: CLOSED RAWHIDE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 4CC: jvdelisle
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OS: Linux   
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Fixed In Version: 4.1.0-0.15 Doc Type: Bug Fix
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Last Closed: 2006-01-18 08:18:05 UTC Type: ---
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Fortran source for the above compile none

Description Orion Poplawski 2005-07-15 17:27:17 UTC 
Description of problem:

This is trying to compile NCAR Graphics 4.4.1 with gfortran:

$ gfortran -c gesc.f
gesc.f: In function 'gesc':
gesc.f:237: internal compiler error: Segmentation fault


Version-Release number of selected component (if applicable):
gcc-gfortran-4.0.0-8


How reproducible:
everytime
Comment 1 Orion Poplawski 2005-07-15 17:27:17 UTC 
Created attachment 116812 [details]
Fortran source for the above compile
Comment 2 Orion Poplawski 2005-07-15 17:31:41 UTC 
This appears to be in the GCC bugzilla: 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21406 , duplicate of:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15966
Comment 3 Jakub Jelinek 2005-07-18 08:29:26 UTC 
Then it is also fixed in gcc-gfortran-4.0.1-3 in rawhide.
Comment 4 Orion Poplawski 2005-07-18 22:36:28 UTC 
Any chance we'll see an update that fixes this for FC4?
Comment 5 Orion Poplawski 2005-07-28 16:48:55 UTC 
Well, not completely fixed.  With gcc-gfortran-4.0.1-4.fc4 I get:

$ gfortran -c gesc.f
gesc.f: In function 'gesc':
gesc.f:237: internal compiler error: in gfc_convert_array_to_string, at
fortran/trans-io.c:414
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugzilla.redhat.com/bugzilla> for instructions.

Perhaps not all of the fixes in pr15966 are in, or this is a new bug?  Don't see
the exact message in the gcc bugzilla, but obviously this is still related.
Comment 6 Jakub Jelinek 2005-08-21 18:26:36 UTC 
Minimal testcase is:
subroutine foo(x,y)
integer x, z
character*(*) y(x)
read(y,500) z
return
500 format(I10)
end subroutine
Comment 7 Jerry 2005-09-03 07:44:42 UTC 
The testcase given in Comment #6 does not give me an error with 4.1 build with
patches for array I/O incorporated.  Evidently its fixed.  Soon as we submit
these patches for review this can be confirmed by others.
Comment 8 Jakub Jelinek 2006-01-18 08:18:05 UTC 
Yeah, fix verified with gcc-gfortran-4.1.0-0.15 in rawhide.
WONTFIX for gcc 4.0.x.