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From: Jan Hubicka <hubicka@ucw.cz> To: roger dot larsson at norran dot net <gcc-bugzilla@gcc.gnu.org> Cc: gcc-bugs@gcc.gnu.org Subject: Re: [Bug target/13685] Building KDE3.2 clock applet with -march=pentium3 -O1 gives SIGSEGV Date: Mon, 19 Jan 2004 10:42:00 -0000 [thread overview] Message-ID: <20040119104202.GE31365@atrey.karlin.mff.cuni.cz> (raw) In-Reply-To: <20040119081143.13693.qmail@sources.redhat.com> > > ------- Additional Comments From roger dot larsson at norran dot net 2004-01-19 08:11 ------- > This is the shortest code yet (matrix.cpp) I found that generates the > offending instruction (movaps) - but I have not yet succeeded in getting > the stack unaligned... [Do you need that too?] Roger, I am not able to reproduce it from your testcase, but sending the assembly file produces with g++ -O1 -march=pentium3 -dp -S will probably give me enough information to fix it. Thanks! Honza > > class RTime > { > public: > int minute() {} > }; > > void rotate(float x) > { > } > > int main() > { > RTime _time; > > // hour > float h_angle = _time.minute(); > rotate(-h_angle); > > // minute > float m_angle = _time.minute(); > rotate(-m_angle); > } > > I am pretty sure that Qt should be simple to > Compile with: > gcc -I/usr/src/kde/qt-copy/mkspecs/linux-g++ -I../../include -o matrix.o > -march=pentium3 -O1 matrix.cpp > > -- > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13685
next prev parent reply other threads:[~2004-01-19 10:42 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2004-01-14 18:28 [Bug c++/13685] New: " roger dot larsson at norran dot net 2004-01-14 18:33 ` [Bug c++/13685] " roger dot larsson at norran dot net 2004-01-14 18:34 ` [Bug target/13685] " pinskia at gcc dot gnu dot org 2004-01-14 19:51 ` roger dot larsson at norran dot net 2004-01-14 23:50 ` roger dot larsson at norran dot net 2004-01-16 16:00 ` thiagom at mail dot com 2004-01-18 18:07 ` dhazeghi at yahoo dot com 2004-01-19 6:38 ` roger dot larsson at norran dot net 2004-01-19 8:11 ` roger dot larsson at norran dot net 2004-01-19 10:42 ` Jan Hubicka [this message] 2004-01-19 10:42 ` hubicka at ucw dot cz 2004-01-19 12:48 ` roger dot larsson at norran dot net 2005-01-07 9:49 ` [Bug target/13685] Building simple test application with -march=pentium3 -Os gives SIGSEGV (unaligned sse instruction) roger dot larsson at norran dot net
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