Date: Sat, 25 May 2013 18:20:01 GMT From: Dimitry Andric <dim@FreeBSD.org> To: freebsd-x11@FreeBSD.org Subject: Re: ports/178977: x11-drivers/xf86-video-intel: Assertion failed: (TheLoop-> getLoopPreheader() Message-ID: <201305251820.r4PIK11G023167@freefall.freebsd.org>
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The following reply was made to PR ports/178977; it has been noted by GNATS. From: Dimitry Andric <dim@FreeBSD.org> To: bug-followup@FreeBSD.org, ohartman@zedat.fu-berlin.de Cc: Subject: Re: ports/178977: x11-drivers/xf86-video-intel: Assertion failed: (TheLoop->getLoopPreheader() Date: Sat, 25 May 2013 20:17:17 +0200 This looks like <http://llvm.org/bugs/show_bug.cgi?id=3D16139>, a bug in the vectorizer (which is enabled by default at -O3). Can you please post the /tmp/sna_accel-cXtZCu.c and /tmp/sna_accel-cXtZCu.sh files it has dropped? If you are feeling adventurous, apply the following patch to contrib/llvm: = <http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/L= oopVectorize.cpp?view=3Dpatch&r1=3D182656&r2=3D182655&pathrev=3D182656> and rebuild clang: cd /usr/src/lib/clang/libllvmvectorize && make cd /usr/src/usr.bin/clang/clang && make && sudo make install
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