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[Bug tree-optimization/27799] adding unused char field inhibits optimization
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Mar 2008 21:22:28 -0000
- Subject: [Bug tree-optimization/27799] adding unused char field inhibits optimization
- References: <bug-27799-1008@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from rguenth at gcc dot gnu dot org 2008-03-04 21:22 -------
Actually RTL alias is just using the same routines. The IL difference is
# SMT.4_6 = VDEF <SMT.4_4(D)>
# SMT.5_7 = VDEF <SMT.5_5(D)>
x_1(D)->x = 0;
# SMT.5_8 = VDEF <SMT.5_7>
y_2(D)->y = 1;
vs.
# SMT.18_5 = VDEF <SMT.18_4(D)>
x_1(D)->x = 0;
# SMT.19_7 = VDEF <SMT.19_6(D)>
y_2(D)->y = 1;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27799