------- Comment #7 from rguenth at gcc dot gnu dot org 2009-05-01 20:34 -------
We can't perform loop store sinking as in and res alias. And our other
store sinking pass is just too stupid for this case as we have a missed
CSE opportunity for the address stored to:
D.1243_8 = *D.1242_7;
if (D.1243_8 != 0)
goto <bb 4>;
else
goto <bb 5>;
<bb 4>:
D.1246_12 = res_11(D) + D.1241_5;
*D.1246_12 = 4660;
goto <bb 6>;
<bb 5>:
D.1246_15 = res_11(D) + D.1241_5;
*D.1246_15 = 39030;
but this is the usual missing code hoisting.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34849
