r123908 - in /trunk/gcc: ChangeLog testsuite/Ch...

[ian@gcc.gnu.org]

Author: ian
Date: Tue Apr 17 06:33:38 2007
New Revision: 123908

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=123908
Log:
./:
	PR tree-optimization/31522
	* tree-vrp.c (vr_phi_edge_counts): New static variable.
	(vrp_initialize): Allocate vr_phi_edge_counts.
	(vrp_visit_phi_node): Don't push to infinity if we saw a new
	executable edge.  Drop test for all constants.
	(vrp_finalize): Free vrp_phi_edge_counts.
testsuite/:
	PR tree-optimization/31522
	* gcc.dg/Wstrict-overflow-16.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/Wstrict-overflow-16.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c