[Bug tree-optimization/30858] [4.3 Regression] ice for legal code with -O2 -ftree-vectorize

[dorit at gcc dot gnu dot org]

------- Comment #10 from dorit at gcc dot gnu dot org  2007-02-22 08:16 -------
Subject: Bug 30858

Author: dorit
Date: Thu Feb 22 08:16:18 2007
New Revision: 122220

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122220
Log:
        PR tree-optimization/30858
        * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
        in the reduction cycle have a single use in the loop.
        * tree-vectorizer.h (relevant): Add documentation.


Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr30858.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vectorizer.c
    trunk/gcc/tree-vectorizer.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30858