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[Bug tree-optimization/42916] [4.5 Regression] "-fcompare-debug failure" with "-O1 -funroll-loops -ftree-vectorize"
- 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: 19 Feb 2010 13:40:44 -0000
- Subject: [Bug tree-optimization/42916] [4.5 Regression] "-fcompare-debug failure" with "-O1 -funroll-loops -ftree-vectorize"
- References: <bug-42916-14164@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-02-19 13:40 -------
The difference is in alignment and some part of a patch of mine seems to
fix it ...
-(insn 230 229 231 3 t.i:5 (set (reg/v:SI 383 [ h ])
- (mem/c/i:SI (symbol_ref:DI ("seed") <var_decl 0x7ffff5aed000 seed>)
[0
seed+0 S4 A128])) -1 (nil))
+(insn 567 566 568 3 t.i:5 (set (reg/v:SI 383 [ h ])
+ (mem/c/i:SI (symbol_ref:DI ("seed") <var_decl 0x7ffff5af1000 seed>)
[0
seed+0 S4 A32])) -1 (nil))
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2010-02-07 20:37:17 |2010-02-19 13:40:44
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42916