1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/reassoc_1.f90 b/gcc/testsuite/gfortran.dg/reassoc_1.f90
new file mode 100644
index 000000000..3857dedf7
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/reassoc_1.f90
@@ -0,0 +1,13 @@
+! { dg-do compile }
+! { dg-options "-O3 -ffast-math -fdump-tree-optimized" }
+
+function test(b)
+  real a
+  a = (b + 5.) - 5.
+  test = a
+end
+
+! We need an explicit +5 and -5, and an intermediate ((bla)) expression
+! (the reassoc barrier).  Make use of "." matching lineends.
+! { dg-final { scan-tree-dump "\\\+ 5.*\\\)\\\).* - 5" "optimized" } }
+! { dg-final { cleanup-tree-dump "optimized" } }