r169928 - in /trunk/gcc: ChangeLog graphite-ses...

[spop@gcc.gnu.org]

Author: spop
Date: Tue Feb  8 16:53:57 2011
New Revision: 169928

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169928
Log:
Fix PRs 46834, 46994, and 46995: only rewrite reductions not containing other computations.

2011-02-08  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/46834
	PR tree-optimization/46994
	PR tree-optimization/46995
	* graphite-sese-to-poly.c (used_outside_reduction): New.
	(detect_commutative_reduction): Call used_outside_reduction.
	(rewrite_commutative_reductions_out_of_ssa_close_phi): Call
	translate_scalar_reduction_to_array only when at least one
	loop-phi/close-phi tuple has been detected.

	* gcc.dg/graphite/id-pr46834.c: New.
	* gfortran.dg/graphite/id-pr46994.f90: New.
	* gfortran.dg/graphite/id-pr46995.f90: New.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/id-pr46834.c
    trunk/gcc/testsuite/gfortran.dg/graphite/id-pr46994.f90
    trunk/gcc/testsuite/gfortran.dg/graphite/id-pr46995.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-sese-to-poly.c
    trunk/gcc/testsuite/ChangeLog