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[Bug c/30564] ice for legal code with -O3
- 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: 23 Jan 2007 21:55:31 -0000
- Subject: [Bug c/30564] ice for legal code with -O3
- References: <bug-30564-9596@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from rguenth at gcc dot gnu dot org 2007-01-23 21:55 -------
Honza, we're not folding the comparison on inlining and later ICE in tree-vrp
because of this (from the einline dump):
# fp1_5 = PHI <fp1_7(5), fp1_4(8), fp1_4(9)>
<L7>:;
i_30 = fp0_6;
goto <bb 14> (<L10>);
<L18>:;
D.1689_35 = unicount[i_3];
D.1690_36 = D.1689_35 == 0;
D.1691_37 = i_3 != i_3;
D.1692_38 = D.1690_36 && D.1691_37;
if (D.1692_38) goto <L15>; else goto <L17>;
<L15>:;
RawOrEnc = 1;
look at the i_3 != i_3
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Component|tree-optimization |c
Ever Confirmed|0 |1
Keywords|ice-on-valid-code |
Last reconfirmed|0000-00-00 00:00:00 |2007-01-23 21:55:31
date| |
Summary|[4.3 Regression] ice for |ice for legal code with -O3
|legal code with -O3 |
Target Milestone|4.3.0 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30564