[Bug tree-optimization/22230] [4.1 Regression] value range propagation error

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-07-14 
22:55 -------
Subject: Bug 22230

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     [EMAIL PROTECTED]       2005-07-14 22:54:43

Modified files:
        gcc            : ChangeLog tree-vrp.c 
        gcc/testsuite  : ChangeLog 
Added files:
        gcc/testsuite/gcc.dg/tree-ssa: pr22230.c 

Log message:
        PR tree-optimization/22230
        
        gcc/
        * tree-vrp.c (extract_range_from_binary_expr): Fix logics thinko in
        the computation of the four cross productions for "range op range".
        
        testsuite/
        * gcc.dg/tree-ssa/pr22230.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9446&r2=2.9447
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vrp.c.diff?cvsroot=gcc&r1=2.40&r2=2.41
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5769&r2=1.5770
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr22230.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22230