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see below code works with gcc-3.0 and gcc-3.3 snapshot also works with gcc-3.2 with -O1 Release: 3.2.3 20030210 (Debian prerelease) (Debian testing/unstable) Environment: System: Linux legolas 2.4.20-pa25 #115 Sun Feb 9 20:54:18 PST 2003 parisc unknown unknown GNU/Linux Architecture: parisc <machine, os, target, libraries (multiple lines)> host: hppa-unknown-linux-gnu build: hppa-unknown-linux-gnu target: hppa-unknown-linux-gnu configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux How-To-Repeat: -------8< cut here 8<--------- inline int fixfloor (long x) { if (x >= 0) return (x >> 16); else return ~((~x) >> 16); } inline int fixtoi (long x) { return fixfloor(x) + ((x & 0x8000) >> 15); } int foo(long x, long y) { return fixtoi(x*y); } -------8< cut here 8<--------- legolas% gcc-3.2 -O2 -c bug.i bug.i: In function `foo': bug.i:3: internal error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
Fix: unknown
State-Changed-From-To: open->analyzed State-Changed-Why: Confirmed on 3.2 branch. 3.3 (and probably mainline) is not affected.
From: Randolph Chung <randolph@tausq.org> To: ebotcazou@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org Cc: Subject: Re: optimization/9768: [3.2 regression] [HP-PA] ICE when optimizing inline code at -O2 Date: Thu, 20 Feb 2003 09:09:32 -0800 This patch "fixes" the problem, but I don't know if it's correct. 3.3 has a similar check legolas[9:08] gcc% diff -u bb-reorder.c.orig bb-reorder.c --- bb-reorder.c.orig 2003-02-20 09:04:47.000000000 -0800 +++ bb-reorder.c 2003-02-20 09:05:21.000000000 -0800 @@ -205,7 +205,7 @@ e_taken = e; } - next = (taken ? e_taken : e_fall)->dest; + next = ((taken && e_taken) ? e_taken : e_fall)->dest; } /* In the absence of a prediction, disturb things as little as possible -- Randolph Chung Debian GNU/Linux Developer, hppa/ia64 ports http://www.tausq.org/
From: Randolph Chung <randolph@tausq.org> To: Eric Botcazou <ebotcazou@libertysurf.fr> Cc: gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org Subject: Re: optimization/9768: [3.2 regression] [HP-PA] ICE when optimizing inline code at -O2 Date: Thu, 20 Feb 2003 10:09:22 -0800 > I've submitted the backport patch for approval on the 3.2 branch. thanks > P.S: does the testcase come from Allegro? yes :) randolph -- Randolph Chung Debian GNU/Linux Developer, hppa/ia64 ports http://www.tausq.org/
From: Eric Botcazou <ebotcazou@libertysurf.fr> To: Randolph Chung <randolph@tausq.org> Cc: gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org Subject: Re: optimization/9768: [3.2 regression] [HP-PA] ICE when optimizing inline code at -O2 Date: Thu, 20 Feb 2003 19:05:51 +0100 > This patch "fixes" the problem, but I don't know if it's correct. 3.3 > has a similar check I think it is. It comes from: 2002-03-21 DJ Delorie <dj@redhat.com> * bb-reorder.c (make_reorder_chain_1): Protect against when redundant edges are omitted. * predict.c (dump_prediction): Likewise. I've submitted the backport patch for approval on the 3.2 branch. P.S: does the testcase come from Allegro? -- Eric Botcazou
From: ebotcazou@gcc.gnu.org To: gcc-gnats@gcc.gnu.org Cc: Subject: optimization/9768 Date: 20 Feb 2003 20:11:05 -0000 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_2-branch Changes by: ebotcazou@gcc.gnu.org 2003-02-20 20:11:04 Modified files: gcc : ChangeLog bb-reorder.c predict.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/gcc.c-torture/compile: 20030220-1.c Log message: PR optimization/9768 Backport patch from mainline: 2002-03-21 DJ Delorie <dj@redhat.com> * bb-reorder.c (make_reorder_chain_1): Protect against when redundant edges are omitted. * predict.c (dump_prediction): Likewise. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.13152.2.657.2.230&r2=1.13152.2.657.2.231 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/bb-reorder.c.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.43.2.1&r2=1.43.2.1.2.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/predict.c.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.55.2.1&r2=1.55.2.1.4.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.1672.2.166.2.95&r2=1.1672.2.166.2.96 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20030220-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=NONE&r2=1.1.2.1
State-Changed-From-To: analyzed->closed State-Changed-Why: Fixed.