[PATCH] Testcase for PR48329

[Richard Biener]

Committed.

Richard.

2014-04-30  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/48329
        * gfortran.dg/vect/pr48329.f90: New testcase.

Index: gcc/testsuite/gfortran.dg/vect/pr48329.f90
===================================================================
--- gcc/testsuite/gfortran.dg/vect/pr48329.f90  (revision 0)
+++ gcc/testsuite/gfortran.dg/vect/pr48329.f90  (working copy)
@@ -0,0 +1,29 @@
+! { dg-do compile }
+! { dg-require-effective-target vect_float }
+! { dg-require-effective-target vect_intfloat_cvt }
+! { dg-additional-options "-ffast-math" }
+
+program calcpi
+
+    implicit none
+    real(kind=4):: h,x,sum,pi
+    integer:: n,i
+    real(kind=4):: f
+
+   f(x) = 4.0/(1.0+x**2)
+
+   n = 2100000000
+
+   h= 1.0 / n
+   sum = 0.0
+  DO i=1, n
+     x = h * (i-0.5)
+     sum = sum + f(x)
+  END DO
+  pi = h * sum
+  write(*,*) 'Pi=',pi
+
+end program calcpi
+
+! { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } }
+! { dg-final { cleanup-tree-dump "vect" } }