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From: "ebotcazou at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/29631] [4.1 regression] bug with promoted induction variable
Date: Tue, 31 Oct 2006 23:34:00 -0000	[thread overview]
Message-ID: <20061031233414.6135.qmail@sourceware.org> (raw)
In-Reply-To: <bug-29631-2744@http.gcc.gnu.org/bugzilla/>



------- Comment #7 from ebotcazou at gcc dot gnu dot org  2006-10-31 23:34 -------
Subject: Bug 29631

Author: ebotcazou
Date: Tue Oct 31 23:34:05 2006
New Revision: 118346

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118346
Log:
        PR rtl-optimization/29631
        * loop.c (basic_induction_var): Add new parameter inner_mode.
        <PLUS>: If set, convert the increment to it before sign-extending.
        <CONST_INT>: Likewise.
        <SUBREG>: Set it.
        <ASHIFTRT>: Likewise.  Return 0 if flag_wrapv.


Added:
    branches/gcc-4_1-branch/gcc/testsuite/gcc.c-torture/execute/20061031-1.c
Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/loop.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29631


  parent reply	other threads:[~2006-10-31 23:34 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-28 23:02 [Bug tree-optimization/29631] New: [4.1 regression] Incorrect zero extension of signed short IV falk at debian dot org
2006-10-28 23:05 ` [Bug middle-end/29631] " pinskia at gcc dot gnu dot org
2006-10-28 23:13 ` falk at debian dot org
2006-10-28 23:19 ` [Bug rtl-optimization/29631] " pinskia at gcc dot gnu dot org
2006-10-29 11:35 ` ebotcazou at gcc dot gnu dot org
2006-10-29 11:35 ` ebotcazou at gcc dot gnu dot org
2006-10-29 21:40 ` ebotcazou at gcc dot gnu dot org
2006-10-31 23:34 ` ebotcazou at gcc dot gnu dot org [this message]
2006-10-31 23:38 ` [Bug rtl-optimization/29631] [4.1 regression] bug with promoted induction variable ebotcazou at gcc dot gnu dot org

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