------- Comment #10 from hjl dot tools at gmail dot com 2010-07-07 03:22 ------- My mistake. gcc.dg/pr39794.c failed with -m64 on Linux/x86-64, not on Linux/ia32. The testcase in comment #7 started to fail between revision 161671 and 161840. I am doing a binary search. It may be the real cause.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44838