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[Bug tree-optimization/19790] equality not noticed when signedness differs.
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Feb 2005 16:12:51 -0000
- Subject: [Bug tree-optimization/19790] equality not noticed when signedness differs.
- References: <20050206132852.19790.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-06 16:12 -------
Confirmed but guess what my tree combiner fixes the problem:
# i_24 = PHI <i_9(1), 0(0)>;
<L0>:;
D.1165_26 = (unsigned int) i_24;
D.1166_25 = D.1165_26 + 1;
i_9 = (int) D.1166_25;
bar (i_9);
D.1121_5 = D.1165_26 >> 5;
D.1122_10 = D.1121_5 * 4;
D.1123_11 = (int *) D.1122_10;
D.1124_12 = array_8 + D.1123_11;
D.1125_13 = *D.1124_12;
D.1126_14 = (long unsigned int) D.1125_13;
D.1127_15 = i_24 & 31;
D.1128_16 = 1 << D.1127_15;
D.1129_17 = D.1126_14 | D.1128_16;
D.1130_18 = (int) D.1129_17;
*D.1124_12 = D.1130_18;
if (D.1166_25 != 11) goto <L0>; else goto <L2>;
Guess that means I need to work more on it.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
BugsThisDependsOn| |15459
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2005-02-06 16:12:50
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19790