[Bug target/15445] spurious dependency-violation warnings

["tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #7 from tbm at cyrius dot com  2006-10-14 23:29 -------
Created an attachment (id=12433)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12433&action=view)
testcase

tbm@coconut0:~$ /usr/lib/gcc-snapshot/bin/gcc -c nethack-cmd.c
tbm@coconut0:~$ /usr/lib/gcc-snapshot/bin/gcc -c -O2 nethack-cmd.c
nethack-cmd.c: In function 'enlightenment':
nethack-cmd.c:44: warning: passing argument 1 of 'enlght_combatinc' makes
integer from pointer without a cast
/tmp/ccS5a0sQ.s: Assembler messages:
/tmp/ccS5a0sQ.s:228: Warning: Use of 'addl' may violate WAW dependency 'GR%, %
in 1 - 127' (impliedf), specific resource number is 33
/tmp/ccS5a0sQ.s:228: Warning: Only the first path encountering the conflict is
reported
/tmp/ccS5a0sQ.s:226: Warning: This is the location of the conflicting usage
/tmp/ccS5a0sQ.s:240: Warning: Use of 'ld8.mov' may violate RAW dependency 'GR%,
% in 1 - 127' (impliedf), specific resource number is 33
/tmp/ccS5a0sQ.s:239: Warning: This is the location of the conflicting usage
/tmp/ccS5a0sQ.s:240: Warning: Use of 'ld8.mov' may violate WAW dependency 'GR%,
% in 1 - 127' (impliedf), specific resource number is 33
/tmp/ccS5a0sQ.s:239: Warning: This is the location of the conflicting usage
tbm@coconut0:~$ gcc-3.4 -c -O2 nethack-cmd.c
In file included from nethack-cmd.c:44:
nethack-cmd.c: In function `enlightenment':
nethack-cmd.c:25: warning: passing arg 1 of `enlght_combatinc' makes integer
from pointer without a cast
tbm@coconut0:~$


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15445