1! { dg-do compile }
2! { dg-options "-O3 -ffast-math -fdump-tree-optimized" }
3
4! Make sure that FRE does not replace c with b in d = c - 5
5
6function test(a)
7  real a, b, c, d
8  b = a + 5.
9  c = (a + 5.)
10  d = c - 5.
11  call foo(b)
12  test = d
13end
14
15! { dg-final { scan-tree-dump "- 5" "optimized" } }
16