re PR middle-end/33449 (ICE for fortran code with -O2 -ftree-vectorize)

	PR middle-end/33449
	* gfortran.dg/pr33449.f90: New test.

From-SVN: r128543

gcc/testsuite/ChangeLog

+2007-09-17  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
+	PR middle-end/33449
+	* gfortran.dg/pr33449.f90: New test.
+
 2007-09-17  Tobias Burnus  <burnus@net-b.de>
 
 	* gfortran.dg/interface_15.f90: Compile with -std=f95.

gcc/testsuite/gfortran.dg/pr33449.f90

+! { dg-do compile }
+! { dg-options "-O2 -ftree-vectorize" }
+!
+! Testcase for vectorization (see PR33449).
+!
+subroutine dlarre (w, iblock, work)
+  integer m, i, iblock(*)
+  double precision w(*), work(*)
+
+  m = 0
+  do jblk = 1, 10
+    do i = 1, 10
+      m = m + 1
+      w(m) = -work(i)
+      iblock(m) = 0
+    end do
+  end do
+end