From: "Tobias Schlüter" <tobias.schlueter@physik.uni-muenchen.de>
To: "Tobias Schlüter" <tobias.schlueter@physik.uni-muenchen.de>
Cc: Richard Henderson <rth@redhat.com>,
gcc@gcc.gnu.org, GCC Fortran mailing list <fortran@gcc.gnu.org>
Subject: Re: Your patch causes regression in the Fortran frontend
Date: Thu, 23 Sep 2004 16:31:00 -0000 [thread overview]
Message-ID: <4152E765.1060702@physik.uni-muenchen.de> (raw)
In-Reply-To: <41505234.2070602@physik.uni-muenchen.de>
Tobias Schlüter wrote:
> The patch you submitted on Sept 13th,
> <http://gcc.gnu.org/ml/gcc-cvs/2004-09/msg00581.html>, with ChangeLog entry
>
> PR tree-opt/10528
> * tree-inline.c (copy_body_r): Recompute bits for ADDR_EXPR,
> after copying its argument.
>
> causes the following regressions in the Fortran frontend on i686-pc-linux:
...
> I.e. all of these disappear if the above change is backed out.
>
Minimal testcase which breaks with your patch, but works if your patch is removed:
-------------------
program main
call f
contains
subroutine f
external g
call g(5) ! changing 5 to i fixes ICE
end subroutine f
end program main
-----------------
The problem seems to be the call to an external function from a contained
function which is being inlined.
Error message (this is from yesterday's CVS, but I didn't see any related
changes on gcc-cvs):
[tobi@marktplatz tests]$ gfortran cont.f90 -O2
unhandled expression in get_expr_operands():
<const_decl 0xf6db9244
type <integer_type 0xf6e23488 int4 public SI
size <integer_cst 0xf6e20408 constant invariant 32>
unit size <integer_cst 0xf6e20138 constant invariant 4>
align 32 symtab 0 alias set -1 precision 32 min <integer_cst
0xf6e203d8 -2147483648> max <integer_cst 0xf6e203f0 2147483647>
pointer_to_this <pointer_type 0xf6e0f000>>
addressable VOID file cont.f90 line 6
align 1 context <function_decl 0xf6db90e8 f> initial <integer_cst
0xf6db8108 5>>
cont.f90: In function 'MAIN__':
cont.f90:2: internal compiler error: internal error
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
Hope this helps,
- Tobi
next prev parent reply other threads:[~2004-09-23 15:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-21 18:22 Tobias Schlüter
2004-09-23 16:31 ` Tobias Schlüter [this message]
2004-09-23 16:49 ` Graham Stott
2004-09-23 23:55 ` Richard Henderson
2004-09-23 18:12 Richard Kenner
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