r167843 - in /trunk/gcc: ChangeLog testsuite/Ch...

[spop@gcc.gnu.org]

Author: spop
Date: Wed Dec 15 05:04:40 2010
New Revision: 167843

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167843
Log:
Fix PR46928: handle "A[p] == A[p]" in data dep analysis with p a parameter of the loop.

2010-12-14  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/46928
	* tree-data-ref.c (analyze_overlapping_iterations): Handle "A[p] == A[p]"
	in data dependence analysis with p a parameter of the loop.

	* gcc.dg/tree-ssa/ldist-17.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-17.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c