public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug tree-optimization/63721] [5 Regression] IPA ICF cause atomic-comp-swap-release-acquire.c ICE on arm [not found] <bug-63721-4@http.gcc.gnu.org/bugzilla/> @ 2014-11-05 9:50 ` jiwang at gcc dot gnu.org 2014-11-05 11:31 ` thopre01 at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 4+ messages in thread From: jiwang at gcc dot gnu.org @ 2014-11-05 9:50 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63721 Jiong Wang <jiwang at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |arm-*-*, x86-64-*-* --- Comment #1 from Jiong Wang <jiwang at gcc dot gnu.org> --- the same ICE will happen on x86-64, if compile with -O2 -fPIC. the reason is for the following two functions, they are identical, so IPA-ICF pass try to transform the second function to call the first one directly. int atomic_compare_exchange_STRONG_RELEASE_ACQUIRE (int a, int b) { return __atomic_compare_exchange (&v, &a, &b, STRONG, __ATOMIC_RELEASE, __ATOMIC_ACQUIRE); } int atomic_compare_exchange_n_STRONG_RELEASE_ACQUIRE (int a, int b) { return __atomic_compare_exchange_n (&v, &a, b, STRONG, __ATOMIC_RELEASE, __ATOMIC_ACQUIRE); } while during this transformation, looks like there are something wrong with the function argument handling. take "a" for example, because later there are "&a", so it's marked as addressable. while after transformation, if we turn the second function into int atomic_compare_exchange_n_STRONG_RELEASE_ACQUIRE (int a, int b) { return atomic_compare_exchange_STRONG_RELEASE_ACQUIRE (a, b) } then argument a is no longer addressable. so, in cgraph_node::release_body, when making the wrapper, except clearing the function body, we should also clear the addressable flag for function args because they are decided by the function body which is cleared. I have a local patch under testing. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/63721] [5 Regression] IPA ICF cause atomic-comp-swap-release-acquire.c ICE on arm [not found] <bug-63721-4@http.gcc.gnu.org/bugzilla/> 2014-11-05 9:50 ` [Bug tree-optimization/63721] [5 Regression] IPA ICF cause atomic-comp-swap-release-acquire.c ICE on arm jiwang at gcc dot gnu.org @ 2014-11-05 11:31 ` thopre01 at gcc dot gnu.org 2014-11-05 11:33 ` jiwang at gcc dot gnu.org 2014-11-07 12:46 ` marxin at gcc dot gnu.org 3 siblings, 0 replies; 4+ messages in thread From: thopre01 at gcc dot gnu.org @ 2014-11-05 11:31 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63721 thopre01 at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |thopre01 at gcc dot gnu.org --- Comment #2 from thopre01 at gcc dot gnu.org --- Shouldn't this be merged with PR63747? ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/63721] [5 Regression] IPA ICF cause atomic-comp-swap-release-acquire.c ICE on arm [not found] <bug-63721-4@http.gcc.gnu.org/bugzilla/> 2014-11-05 9:50 ` [Bug tree-optimization/63721] [5 Regression] IPA ICF cause atomic-comp-swap-release-acquire.c ICE on arm jiwang at gcc dot gnu.org 2014-11-05 11:31 ` thopre01 at gcc dot gnu.org @ 2014-11-05 11:33 ` jiwang at gcc dot gnu.org 2014-11-07 12:46 ` marxin at gcc dot gnu.org 3 siblings, 0 replies; 4+ messages in thread From: jiwang at gcc dot gnu.org @ 2014-11-05 11:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63721 --- Comment #3 from Jiong Wang <jiwang at gcc dot gnu.org> --- (In reply to thopre01 from comment #2) > Shouldn't this be merged with PR63747? not sure, but looks like they are not the same issue. this failure happen on x86-64 also, and may happen on any target. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/63721] [5 Regression] IPA ICF cause atomic-comp-swap-release-acquire.c ICE on arm [not found] <bug-63721-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2014-11-05 11:33 ` jiwang at gcc dot gnu.org @ 2014-11-07 12:46 ` marxin at gcc dot gnu.org 3 siblings, 0 replies; 4+ messages in thread From: marxin at gcc dot gnu.org @ 2014-11-07 12:46 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63721 Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE --- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> --- Dup. *** This bug has been marked as a duplicate of bug 63580 *** >From gcc-bugs-return-465967-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Nov 07 12:46:44 2014 Return-Path: <gcc-bugs-return-465967-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org> Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 19369 invoked by alias); 7 Nov 2014 12:46:44 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: <gcc-bugs.gcc.gnu.org> List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/> List-Post: <mailto:gcc-bugs@gcc.gnu.org> List-Help: <mailto:gcc-bugs-help@gcc.gnu.org> Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 19043 invoked by uid 48); 7 Nov 2014 12:46:39 -0000 From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug ipa/63580] [5 Regression] ICE : error: invalid argument to gimple call Date: Fri, 07 Nov 2014 12:46:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: ipa X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: marxin at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: marxin at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: <bug-63580-4-7wgksdozSA@http.gcc.gnu.org/bugzilla/> In-Reply-To: <bug-63580-4@http.gcc.gnu.org/bugzilla/> References: <bug-63580-4@http.gcc.gnu.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-11/txt/msg00439.txt.bz2 Content-length: 450 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63580 Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jiwang at gcc dot gnu.org --- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> --- *** Bug 63721 has been marked as a duplicate of this bug. *** >From gcc-bugs-return-465968-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Nov 07 12:57:11 2014 Return-Path: <gcc-bugs-return-465968-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org> Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 31920 invoked by alias); 7 Nov 2014 12:57:10 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: <gcc-bugs.gcc.gnu.org> List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/> List-Post: <mailto:gcc-bugs@gcc.gnu.org> List-Help: <mailto:gcc-bugs-help@gcc.gnu.org> Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 31888 invoked by uid 48); 7 Nov 2014 12:57:06 -0000 From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/48956] -Wconversion should warn when a complex value is assigned to a real result Date: Fri, 07 Nov 2014 12:57:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.6.0 X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: enhancement X-Bugzilla-Who: manu at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status assigned_to Message-ID: <bug-48956-4-5SceR8GPJ1@http.gcc.gnu.org/bugzilla/> In-Reply-To: <bug-48956-4@http.gcc.gnu.org/bugzilla/> References: <bug-48956-4@http.gcc.gnu.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-11/txt/msg00440.txt.bz2 Content-length: 964 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48956 Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEW Assignee|stevenj at alum dot mit.edu |unassigned at gcc dot gnu.org --- Comment #10 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Paolo Carlini from comment #9) > Out of curiosity, what happened to this issue? (is still assigned to Steven) > Note that as far as I can see it's essentially a C issue, because the C++ > front-end rejects this kind of code with an hard error. I think it is safe to assume that anyone is welcome to follow up on this. See also comment #5. I personally would leave this as one of the EasyHacks for new contributors. It is easy to fix but not very important. >From gcc-bugs-return-465969-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Nov 07 13:26:41 2014 Return-Path: <gcc-bugs-return-465969-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org> Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 20871 invoked by alias); 7 Nov 2014 13:26:41 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: <gcc-bugs.gcc.gnu.org> List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/> List-Post: <mailto:gcc-bugs@gcc.gnu.org> List-Help: <mailto:gcc-bugs-help@gcc.gnu.org> Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 20832 invoked by uid 48); 7 Nov 2014 13:26:37 -0000 From: "enkovich.gnu at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/63766] [5 Regression] ICE: in gimple_predict_edge, at predict.c:578 Date: Fri, 07 Nov 2014 13:26:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: enkovich.gnu at gmail dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: <bug-63766-4-wYJZS3eVVO@http.gcc.gnu.org/bugzilla/> In-Reply-To: <bug-63766-4@http.gcc.gnu.org/bugzilla/> References: <bug-63766-4@http.gcc.gnu.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-11/txt/msg00441.txt.bz2 Content-length: 947 https://gcc.gnu.org/bugzilla/show_bug.cgi?idc766 Ilya Enkovich <enkovich.gnu at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |enkovich.gnu at gmail dot com --- Comment #4 from Ilya Enkovich <enkovich.gnu at gmail dot com> --- (In reply to Richard Biener from comment #3) > > That's quadratic in the number of nodes and thus a no-go. Why not delay > removing of unreachable nodes instead? If you go with the above then > you need to change that data-structure used. > Delaying removal of unreachable nodes would mean we perform all early optimization passes for node we will later remove. It should be much more expensive then having a hook iterating over nodes vector. I also may add order_idx field into cgraph_node structure or create a local hash to map nodes to indexes. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-11-07 12:46 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <bug-63721-4@http.gcc.gnu.org/bugzilla/>
2014-11-05 9:50 ` [Bug tree-optimization/63721] [5 Regression] IPA ICF cause atomic-comp-swap-release-acquire.c ICE on arm jiwang at gcc dot gnu.org
2014-11-05 11:31 ` thopre01 at gcc dot gnu.org
2014-11-05 11:33 ` jiwang at gcc dot gnu.org
2014-11-07 12:46 ` marxin at gcc dot gnu.org
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).