[Bug tree-optimization/29877] [4.0/4.1/4.2/4.3 Regression] out of SSA (TER) extends variable life of variable beyond original declared

[shinwell at gcc dot gnu dot org]

------- Comment #5 from shinwell at gcc dot gnu dot org  2007-01-08 08:33 
-------
Subject: Bug 29877

Author: shinwell
Date: Mon Jan  8 08:33:42 2007
New Revision: 120571

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=120571
Log:
        PR tree-optimization/29877
        gcc/
        * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
        a register variable on the RHS to not be replaceable.

        gcc/testsuite/
        * gcc.dg/pr16194.c: Skip test entirely if we don't know the
        name of a hard register for the target concerned.  Adjust dg-error
        directives to cope with new behaviour of TER.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/pr16194.c
    trunk/gcc/tree-ssa-ter.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29877