re PR tree-optimization/36078 (gfortran fails to build cpu2006/465.tonto)

2008-04-29  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/36078
	* tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely):
	Update virtual SSA form after cleaning up the CFG.

	* gfortran.fortran-torture/compile/pr36078.f90: New testcase.

From-SVN: r134799

gcc/ChangeLog

 2008-04-29  Richard Guenther  <rguenther@suse.de>
 
+	PR tree-optimization/36078
+	* tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely):
+	Update virtual SSA form after cleaning up the CFG.
+
+2008-04-29  Richard Guenther  <rguenther@suse.de>
+
 	PR middle-end/15255
 	* fold-const.c (fold_binary): Fold (A + A) * C to A * 2*C.
 

gcc/testsuite/ChangeLog

 2008-04-29  Richard Guenther  <rguenther@suse.de>
 
+	PR tree-optimization/36078
+	* gfortran.fortran-torture/compile/pr36078.f90: New testcase.
+
+2008-04-29  Richard Guenther  <rguenther@suse.de>
+
 	PR middle-end/15255
 	* gcc.dg/fold-plusmult.c: New testcase.
 

gcc/testsuite/gfortran.fortran-torture/compile/pr36078.f90

+   subroutine foo(func,p,eval)
+      real(kind=kind(1.0d0)), dimension(3,0:4,0:4,0:4) :: p
+      logical(kind=kind(.true.)), dimension(5,5,5) :: eval
+      interface
+         subroutine func(values,pt)
+            real(kind=kind(1.0d0)), dimension(:), intent(out) :: values
+            real(kind=kind(1.0d0)), dimension(:,:), intent(in) :: pt
+         end subroutine
+      end interface
+      real(kind=kind(1.0d0)), dimension(125,3) :: pt
+      integer(kind=kind(1)) :: n_pt
+
+      n_pt = 1
+      pt(1:n_pt,:) = &
+         reshape( &
+            pack( &
+               transpose(reshape(p,(/3,125/))), &
+               spread(reshape(eval,(/125/)),dim=2,ncopies=3)), &
+            (/n_pt,3/))
+
+   end subroutine
+   end 

gcc/tree-ssa-loop-ivcanon.c

@@ -366,7 +366,8 @@ tree_unroll_loops_completely (bool may_increase_size, bool unroll_outer)
 	  /* This will take care of removing completely unrolled loops
 	     from the loop structures so we can continue unrolling now
 	     innermost loops.  */
-	  cleanup_tree_cfg ();
+	  if (cleanup_tree_cfg ())
+	    update_ssa (TODO_update_ssa_only_virtuals);
 
 	  /* Clean up the information about numbers of iterations, since
 	     complete unrolling might have invalidated it.  */