[Bug tree-optimization/15255] [tree-ssa] a * 2 + a * 2 is not converted to a * 4

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2008-04-29 16:00 -------
Subject: Bug 15255

Author: rguenth
Date: Tue Apr 29 15:59:43 2008
New Revision: 134798

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=134798
Log:
2008-04-29  Richard Guenther  <[EMAIL PROTECTED]>

        PR middle-end/15255
        * fold-const.c (fold_binary): Fold (A + A) * C to A * 2*C.

        * gcc.dg/fold-plusmult.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/fold-plusmult.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15255