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[Bug fortran/80255] Segfault from accessing class(*) component in an array of any-type-wrappers
- From: "dominiq at lps dot ens.fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 29 Mar 2017 17:53:12 +0000
- Subject: [Bug fortran/80255] Segfault from accessing class(*) component in an array of any-type-wrappers
- Auto-submitted: auto-generated
- References: <bug-80255-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80255
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2017-03-29
Ever confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The code compiles with gfortran configured with --enable-checking=release, but
segfault at run time. However if gfortran is configured with
--enable-checking=yes, I get
pr80255.f90:1:0:
program test
Error: conversion of register to a different size
VIEW_CONVERT_EXPR<struct __class__STAR_a>(_28);
MEM[(struct ftlany[0:] *)_29][_31].value = VIEW_CONVERT_EXPR<struct
__class__STAR_a>(_28);
pr80255.f90:1:0: Error: conversion of register to a different size
VIEW_CONVERT_EXPR<struct __class__STAR_a>(_32);
MEM[(struct ftlany[0:] *)_33][_35].value = VIEW_CONVERT_EXPR<struct
__class__STAR_a>(_32);
pr80255.f90:1:0: internal compiler error: verify_gimple failed
pr80255.f90:1:0: internal compiler error: Abort trap: 6
gfcc: internal compiler error: Abort trap: 6 (program f951)
Please submit a full bug report,
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I don't have the patience to look at the standard, but I am not sure the code
is valid.