On LTO branh, as of revision 149328 27_io/basic_filebuf/imbue/char/13171-2.cc hangs on Linux/ia64.
27_io/basic_filebuf/imbue/wchar_t/14975-2.cc also hangs.
Works on x86-64 in r149354. Can you still reproduce on ia64, HJ?
I still see them with revision 149365 on Linux/ia64.
Revision 147761 is bad: FAIL: 27_io/basic_filebuf/imbue/char/13171-2.cc execution test Revision 147732 is OK. On Linux/ia64, revision 147761 has extra 1180 failures vs. revision 147732.
The only change between revision 147732 and revision 147761 is r147738 | dnovillo | 2009-05-20 06:36:30 -0700 (Wed, 20 May 2009) | 5 lines * testsuite/lib/libstdc++.exp: Perform -flto test after support libraries are built.
I got 12309 ? S 0:00 ./13171-2.exe 18148 ? S 0:00 ./14975-2.exe [hjl@gnu-11 src-lto]$ strace -p 12309 Process 12309 attached - interrupt to quit open("tmp_fifo_13171-2", O_WRONLY|O_CREAT|O_TRUNC, 0666 <unfinished ...> Process 12309 detached [hjl@gnu-11 src-lto]$ strace -p 18148 Process 18148 attached - interrupt to quit open("tmp_14975-2", O_RDONLY <unfinished ...
Needs re-confirming.
It no longer hangs as of revision 152331: http://gcc.gnu.org/ml/gcc-testresults/2009-09/msg02788.html