* [PATCH] Testcase for PR48329
@ 2014-04-30 11:56 Richard Biener
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From: Richard Biener @ 2014-04-30 11:56 UTC (permalink / raw)
To: gcc-patches
Committed.
Richard.
2014-04-30 Richard Biener <rguenther@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" } }
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