From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 gcc/testsuite/gfortran.dg/array_memset_2.f90 | 38 ++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 gcc/testsuite/gfortran.dg/array_memset_2.f90

(limited to 'gcc/testsuite/gfortran.dg/array_memset_2.f90')

diff --git a/gcc/testsuite/gfortran.dg/array_memset_2.f90 b/gcc/testsuite/gfortran.dg/array_memset_2.f90
new file mode 100644
index 000000000..7805f7b94
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/array_memset_2.f90
@@ -0,0 +1,38 @@
+! { dg-do run }
+! { dg-options "-O2 -fdump-tree-original" }
+
+module foo
+contains
+  subroutine bar(a)
+    real, dimension(:,:) :: a
+    a(1,:) = 0.
+  end subroutine bar
+end module foo
+
+program test
+  use foo
+  implicit none
+  real, dimension (2,2) :: a, d, e
+  real, dimension (1,2) :: b
+  real, dimension (2) :: c
+  data a, d, e /12*1.0/
+  data b /2*1.0/
+  data c /2*1.0/
+
+  a(1,:) = 0.    ! This can't be optimized to a memset.
+  b(1,:) = 0.    ! This is optimized to = {}.
+  c = 0.         ! This is optimized to = {}.
+  d(:,1) = 0.    ! This can't be otimized to a memset.
+  call bar(e)
+
+  if (any(a /= reshape((/ 0.0, 1.0, 0.0, 1.0/), shape(a)))) call abort
+  if (any(b /= 0.)) call abort
+  if (any(c /= 0.)) call abort
+  if (any(d /= reshape((/ 0.0, 0.0, 1.0, 1.0/), shape(d)))) call abort
+  if (any(e /= reshape((/ 0.0, 1.0, 0.0, 1.0/), shape(e)))) call abort
+
+end program
+
+! { dg-final { scan-tree-dump-times "= {}" 2 "original" } }
+! { dg-final { cleanup-tree-dump "original" } }
+! { dg-final { cleanup-modules "foo" } }
-- 
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