r132835 - in /trunk/gcc: ChangeLog tree-chrec.c...

[spop@gcc.gnu.org]

Author: spop
Date: Mon Mar  3 11:51:36 2008
New Revision: 132835

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132835
Log:
	* tree-scalar-evolution.c (instantiate_parameters_1): An SSA_NAME
	defined in a loop at depth 0 is invariant.
	* tree-chrec.c (evolution_function_is_invariant_rec_p): Ditto.
	* tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Should never
	be called at loop depth 0.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-chrec.c
    trunk/gcc/tree-scalar-evolution.c
    trunk/gcc/tree-ssa-loop-ivopts.c