On 2013.12.30 at 18:47 +0000, Pádraig Brady wrote: > On 12/30/2013 12:32 PM, Markus Trippelsdorf wrote: > > coreutils-8.22 build with clang-3.4 doesn't copy permissions correctly: > > > > markus@x4 tmp % touch test1 > > markus@x4 tmp % chmod 600 test1 > > markus@x4 tmp % ls -al test1 > > -rw------- 1 markus markus 0 Dec 30 13:25 test1 > > markus@x4 tmp % /var/tmp/coreutils-8.22/src/cp test1 test2 > > markus@x4 tmp % ls -al test2 > > ---------- 1 markus markus 0 Dec 30 13:25 test2 > > markus@x4 tmp % > > Ouch. > > Note as part of the 8.22 release process > I did verify that `make check` passed with > clang-3.3-3.fc20.x86_64 > > I've again verified that clang-3.3 passes your test above. > > Can you pinpoint the erroneous code? > It does seem like a clang regression TBH.
Started with LLVM r192750 (Enable MI Sched for x86). I've opened a LLVM bug here: http://llvm.org/bugs/show_bug.cgi?id=18346 (I will try to come up with a testcase after the holidays) -- Markus
