g
ReportedBy: thomas at coware dot com
GCC build triplet: i686
GCC host triplet: i686
GCC target triplet: i686
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40987
--- Comment #2 from thomas at coware dot com 2009-08-06 15:26 ---
I can also build it like this and it fails:
gcc test.c -O1 -fno-tree-dce -o test
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40987
--- Comment #4 from thomas at coware dot com 2009-08-06 19:25 ---
By the way, I see the same failure also with gcc 4.1.2 and 4.2 without any fno-
options.
I thought it would be a good idea to hunt the problem down to a single
optimization mechanism, which seems to be if-conversion. I
--- Comment #7 from thomas at coware dot com 2009-08-07 07:37 ---
This is how function func looks after the if conversion (test.c.144r.ce1):
(note 4 0 2 2 [bb 2] NOTE_INSN_BASIC_BLOCK)
(insn 2 4 3 2 test.c:3 (set (reg/v:SI 63 [ arg ])
(mem/c/i:SI (reg/f:SI 16 argp) [0 arg+0 S4
