public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "burnus at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/43796] [4.5/4.6 Regression] ICE in is_overflow_infinity (tree-vrp.c:184) with gfortran -fcheck=bounds -O2 Date: Mon, 19 Apr 2010 11:40:00 -0000 [thread overview] Message-ID: <20100419114001.26050.qmail@sourceware.org> (raw) In-Reply-To: <bug-43796-12935@http.gcc.gnu.org/bugzilla/> ------- Comment #2 from burnus at gcc dot gnu dot org 2010-04-19 11:39 ------- Confirm. It fails with 4.5 and 4.6 using the option -fbounds-check (== -fcheck-bounds), but only with -O2 and higher and for some reasons only with -m32 and not with -m64 on x86_64-unknown-linux-gnu. It works with GCC 4.1/4.2/4.3/4.4. Valgrind shows: ==2634== Invalid read of size 2 ==2634== at 0x9643CA: is_overflow_infinity (tree-vrp.c:184) ==2634== by 0x96447D: usable_range_p (tree-vrp.c:797) ==2634== by 0x96A3DD: compare_ranges (tree-vrp.c:3388) ==2634== by 0x96B083: vrp_evaluate_conditional_warnv_with_ops (tree-vrp.c:5669) ==2634== by 0x96B91F: vrp_evaluate_conditional (tree-vrp.c:5710) ==2634== by 0x9309DE: thread_across_edge (tree-ssa-threadedge.c:537) ==2634== by 0x9765ED: execute_vrp (tree-vrp.c:7214) ==2634== by 0x785B9A: execute_one_pass (passes.c:1569) ==2634== by 0x785E24: execute_pass_list (passes.c:1624) ==2634== by 0x785E36: execute_pass_list (passes.c:1625) ==2634== by 0x87AB34: tree_rest_of_compilation (tree-optimize.c:413) ==2634== by 0x9FCA60: cgraph_expand_function (cgraphunit.c:1548) ==2634== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==2634== test.f90: In function 'f06fkfn': test.f90:1:0: internal compiler error: Segmentation fault Please submit a full bug report, -- burnus at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |burnus at gcc dot gnu dot | |org Component|fortran |middle-end GCC target triplet| |i386-unknown-linux-gnu Keywords| |ice-on-valid-code Known to fail| |4.5.0 4.6.0 Known to work| |4.4.4 Summary|ICE with -fcheck=all |[4.5/4.6 Regression] ICE in | |is_overflow_infinity (tree- | |vrp.c:184) with gfortran - | |fcheck=bounds -O2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43796
next prev parent reply other threads:[~2010-04-19 11:40 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-04-19 10:11 [Bug fortran/43796] New: ICE with -fcheck=all mathewc at nag dot co dot uk 2010-04-19 10:56 ` [Bug fortran/43796] " dominiq at lps dot ens dot fr 2010-04-19 11:40 ` burnus at gcc dot gnu dot org [this message] 2010-04-19 12:26 ` [Bug middle-end/43796] [4.5/4.6 Regression] ICE in is_overflow_infinity (tree-vrp.c:184) with gfortran -fcheck=bounds -O2 rguenth at gcc dot gnu dot org 2010-04-19 15:17 ` rguenth at gcc dot gnu dot org 2010-04-19 15:21 ` [Bug middle-end/43796] [4.5 " rguenth at gcc dot gnu dot org 2010-04-20 9:04 ` rguenth at gcc dot gnu dot org 2010-04-20 9:06 ` rguenth at gcc dot gnu dot org
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20100419114001.26050.qmail@sourceware.org \ --to=gcc-bugzilla@gcc.gnu.org \ --cc=gcc-bugs@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).