Date: Mon, 26 Sep 2016 21:48:02 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-toolchain@FreeBSD.org Subject: [Bug 213008] [clang] Bad machine code: Using an undefined physical register Message-ID: <bug-213008-29464-7TECHRku3Q@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-213008-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-213008-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213008 Dimitry Andric <dim@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|freebsd-toolchain@FreeBSD.o |dim@FreeBSD.org |rg | Status|New |In Progress CC| |dim@FreeBSD.org, | |emaste@freebsd.org --- Comment #1 from Dimitry Andric <dim@FreeBSD.org> --- Yeah, this is clearly the infamous http://llvm.org/PR21903 striking again. There is a bug in llvm's processing of x87 status words, which is very old by now, and apparently very difficult to fix. You might be able to work around it by lowering the optimization level, selecting another CPU type, or otherwise just mark the port BROKEN for i386 for now. I do not expect this bug to get solved any time soon. -- You are receiving this mail because: You are the assignee for the bug.help
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