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[Bug fortran/40472] Simplification of spread intrinsic takes a long time
- From: "burnus at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Jun 2009 11:51:34 -0000
- Subject: [Bug fortran/40472] Simplification of spread intrinsic takes a long time
- References: <bug-40472-17820@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from burnus at gcc dot gnu dot org 2009-06-22 11:51 -------
(In reply to comment #9)
> At revision 148777 (but not at r148732) [...] Segmentation fault
Does not segfault here, but I get with valgrind:
==23187== Use of uninitialised value of size 8
==23187== at 0x52A29C8: __gmpz_get_si (in /usr/lib64/libgmp.so.3.5.0)
==23187== by 0x5166F9: gfc_simplify_spread (simplify.c:5291)
==23187== by 0x4A3BB9: gfc_check_spread (check.c:2868)
==23187== by 0x5AE7397: ???
That's the following line:
if (mpz_get_si (size)*ncopies > gfc_option.flag_max_array_constructor)
where size is initialized using:
gfc_array_size (source, &size);
The problem is that SOURCE is 1 and not an array. gfc_array_size duly
returns FAILURE, but this is ignored.
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
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CC| |burnus at gcc dot gnu dot
| |org
Last reconfirmed|2009-06-20 09:58:13 |2009-06-22 11:51:34
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40472