[Bug tree-optimization/17598] an extra addition when comparing address of &a->b and &c->b.

Tue, 26 Apr 2005 09:36:11 -0700 

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-04-26 
16:35 -------
Subject: Bug 17598

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     [EMAIL PROTECTED]       2005-04-26 16:35:32

Modified files:
        gcc            : ChangeLog fold-const.c 
        gcc/testsuite  : ChangeLog 
Added files:
        gcc/testsuite/gcc.dg/tree-ssa: pr17598.c 

Log message:
        2004-04-26  Richard Guenther  <[EMAIL PROTECTED]>
        
        PR tree-optimization/17598
        * fold-const.c (fold_binary): Fold comparisons of addresses
        of COMPONENT_REFs which reference the same field to
        comparisons of the addresses of the base objects.
        
        * gcc.dg/tree-ssa/pr17598.c: New testcase.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8465&r2=2.8466
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.571&r2=1.572
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5399&r2=1.5400
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr17598.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17598

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