re PR debug/42186 ([graphite] internal compiler error: verify_ssa failed)

Fix PR42186.

2009-12-17  Sebastian Pop  <sebastian.pop@amd.com>

	PR middle-end/42186
	* testsuite/gfortran.dg/graphite/pr42186.f90: New.

From-SVN: r155420

gcc/ChangeLog.graphite

 2009-12-17  Sebastian Pop  <sebastian.pop@amd.com>
 
+	PR middle-end/42186
+	* testsuite/gfortran.dg/graphite/pr42186.f90: New.
+
+2009-12-17  Sebastian Pop  <sebastian.pop@amd.com>
+
 	PR middle-end/42205
 	* graphite-sese-to-poly.c (translate_scalar_reduction_to_array_for_stmt):
 	Insert the reduction copy in the same block as the phi node.

gcc/testsuite/gfortran.dg/graphite/pr42186.f90

+! { dg-options "-fgraphite-identity -g -O3 -ffast-math" }
+MODULE erf_fn
+CONTAINS
+  SUBROUTINE CALERF(ARG,RESULT,JINT)
+    DIMENSION A(5),B(4),C(9),D(8),P(6),Q(5)
+    IF (Y <= THRESH) THEN
+       DO I = 1, 3
+          XNUM = (XNUM + A(I)) * YSQ
+          XDEN = (XDEN + B(I)) * YSQ
+       END DO
+       RESULT = X * (XNUM + A(4)) / (XDEN + B(4))
+    END IF
+  END SUBROUTINE CALERF
+END MODULE erf_fn