1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
! { dg-do compile }
! { dg-options "-ffrontend-optimize -Wfunction-elimination" }
! Check the -ffrontend-optimize (in the absence of -O) and
! -Wfunction-elimination options.
program main
implicit none
real, dimension(2,2) :: a, b, c, d
integer :: i
real :: x, z
character(60) :: line
real, external :: ext_func
interface
elemental function element(x)
real, intent(in) :: x
real :: elem
end function element
pure function mypure(x)
real, intent(in) :: x
integer :: mypure
end function mypure
elemental impure function elem_impure(x)
real, intent(in) :: x
real :: elem_impure
end function elem_impure
end interface
data a /2., 3., 5., 7./
data b /11., 13., 17., 23./
write (unit=line, fmt='(4F7.2)') matmul(a,b) & ! { dg-warning "Removing call to function 'matmul'" }
& + matmul(a,b)
z = sin(x) + 2.0 + sin(x) ! { dg-warning "Removing call to function 'sin'" }
print *,z
x = ext_func(a) + 23 + ext_func(a)
print *,d,x
z = element(x) + element(x) ! { dg-warning "Removing call to function 'element'" }
print *,z
i = mypure(x) - mypure(x) ! { dg-warning "Removing call to function 'mypure'" }
print *,i
z = elem_impure(x) - elem_impure(x)
print *,z
end program main
|
