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mmitchel at gcc dot gnu dot org changed:
What|Removed |Added
Priority|P3 |P2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28868
--- Comment #6 from dberlin at gcc dot gnu dot org 2006-08-29 14:59 ---
SCCVN comes up with
Value numbers:
d_2 = c_1
c_7 = b_6
d_8 = b_6
c_10 = a_9
d_11 = a_9
where
# PRED: 3 (fallthru,exec) 4 (fallthru,exec)
# dD.1526_2 = PHI dD.1526_11(3), dD.1526_8(4);
# cD.1525_1 = PHI
--- Comment #7 from pinskia at gcc dot gnu dot org 2006-08-30 04:44 ---
(In reply to comment #6)
As a result, once integrated into PRE/FRE, it will eliminate uses of the d_2
phi with the c_1 phi, which is what you want.
Thanks, I was expecting that the new VN would fix this.
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