On 18 Nov 2014, at 17:39, Jeff Trawick <[email protected]> wrote: > On Tue, Nov 18, 2014 at 4:06 PM, olli hauer <[email protected]> wrote: >> A user found a possible issue in apr-1.5.1/file_io/unix/filestat.c. [1] >> >> It seems the following code snippet will could be an potential issue in >> case apr is build with clang35 and optimization level is above -O0 >> >> >> --- apr-1.5.1/file_io/unix/filestat.c >> +++ apr-1.5.1/file_io/unix/filestat.c >> @@ -297,7 +297,6 @@ APR_DECLARE(apr_status_t) apr_stat(apr_f >> finfo->pool = pool; >> finfo->fname = fname; >> fill_out_finfo(finfo, &info, wanted); >> - if (wanted & APR_FINFO_LINK) >> wanted &= ~APR_FINFO_LINK; >> return (wanted & ~finfo->valid) ? APR_INCOMPLETE : APR_SUCCESS; >> } >> >> Can someone from the APR team verify the findings ? >> >> >> [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193905 >> >> >> -- >> Regards, >> olli >> > > is there an easy way to install and use clang 3.5 on FreeBSD 10.1 without > touching the system compiler (clang 3.4.1)?
Hi, You could do that by installing the port, but you don't have to bother. It is a bug in one of the llvm optimization passes, introduced before 3.5.0 was released, unfortunately. The bad commit has been reverted here: http://llvm.org/viewvc/llvm-project?view=revision&revision=222856 I will pull this fix into FreeBSD's copy of clang when I import 3.5.0 into the base system. The clang 3.5.0 port will have to be fixed by its maintainer. LLVM upstream will probably also include this fix in 3.5.1. At least, I sincerely hope they do. :) -Dimitry
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