[Bug middle-end/32044] udivdi3 counterproductive, unwarranted use

["malitzke at metronets dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #10 from malitzke at metronets dot com  2007-05-23 13:17 -------
Mr. Guenther!

The volatile fix would be fine, but (at least for me) does not work with the
kernel. There is that little message:

kernel/time.c:479: warning: passing argument 3 of 'div_long_rem_signed'
discards qualifiers from pointer target type.

and others like it, and, udivdi3 reappears.

Mr. Park!

The patch you kindly included in comment 3 presented two difficulties:

1. I Acould not extricate it cleanly enough from the html encoding apparently
standard with bugzilla. (this is a Mozilla Product)

2. After some editing patch just accepted 1 hunk and upon checking it turned
out that the svn derived tree-scalar.evolution.c did not match the enclosing
lines around the lines to be added. I added those lines by hand (possibly
imperfectly, enven on careful checking) the file compiled OK, but, runnign the
gcc check sequence I got a stream of error. These errors disappeared on using a
sequestered unpatched copy of the file. Hence, udivdi3 reappeared. If you see
fit for me to test this not only on the reduced test case but on the actual
kernel I suggest sending me a updated patch as a text attachment to my email.

Thanks to all for trying to help.




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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32044