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[Bug rtl-optimization/16052] strength reduction produces wrong code
- From: "ebotcazou at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Dec 2004 12:08:31 -0000
- Subject: [Bug rtl-optimization/16052] strength reduction produces wrong code
- References: <20040618102819.16052.yamt@mwd.biglobe.ne.jp>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-12-05 12:08 -------
> Fails on all ix86
Yeah, this is the classical problem with biv elimination to pointer givs. See
gcc.c-torture/execute/loop-2e.c, which is XFAILed on x86. Not a regression.
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|[3.4/4.0 Regression] |strength reduction produces
|strength reduction produces |wrong code
|wrong code |
Target Milestone|3.4.4 |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16052