1! { dg-do run } 2! { dg-options "-fdump-tree-original" } 3! 4! PR fortran/35681 5! Test the use of temporaries in case of elemental subroutines. 6 7PROGRAM main 8 IMPLICIT NONE 9 INTEGER, PARAMETER :: sz = 5 10 INTEGER :: i 11 INTEGER :: a(sz) = (/ (i, i=1,sz) /) 12 INTEGER :: b(sz) 13 14 b = a 15 CALL double(a(sz-b+1), a) ! { dg-warning "might interfere with actual" } 16 ! Don't check the result, as the above is invalid 17 ! and might produce unexpected results (overlapping vector subscripts). 18 19 20 b = a 21 CALL double (a, a) ! same range, no temporary 22 IF (ANY(a /= 2*b)) CALL abort 23 24 25 b = a 26 CALL double (a+1, a) ! same range, no temporary 27 IF (ANY(a /= 2*b+2)) CALL abort 28 29 30 b = a 31 CALL double ((a(1:sz)), a(1:sz)) ! same range, no temporary 32 IF (ANY(a /= 2*b)) CALL abort 33 34 35 b = a 36 CALL double(a(1:sz-1), a(2:sz)) ! { dg-warning "might interfere with actual" } 37 ! Don't check the result, as the above is invalid, 38 ! and might produce unexpected results (arguments overlap). 39 40 41 b = a 42 CALL double((a(1:sz-1)), a(2:sz)) ! paren expression, temporary created 43! { dg-final { scan-tree-dump-times "A\.16\\\[4\\\]" 1 "original" } } 44 45 IF (ANY(a /= (/ b(1), (2*b(i), i=1,sz-1) /))) CALL abort 46 47 48 b = a 49 CALL double(a(1:sz-1)+1, a(2:sz)) ! op expression, temporary created 50! { dg-final { scan-tree-dump-times "A\.25\\\[4\\\]" 1 "original" } } 51 52 IF (ANY(a /= (/ b(1), (2*b(i)+2, i=1,sz-1) /))) CALL abort 53 54 55 b = a 56 CALL double(self(a), a) ! same range, no temporary 57 IF (ANY(a /= 2*b)) CALL abort 58 59 60 b = a 61 CALL double(self(a(1:sz-1)), a(2:sz)) ! function expr, temporary created 62! { dg-final { scan-tree-dump-times "A\.37\\\[4\\\]" 1 "original" } } 63 64 IF (ANY(a /= (/ b(1), (2*b(i), i=1,sz-1) /))) CALL abort 65 66 67CONTAINS 68 ELEMENTAL SUBROUTINE double(a, b) 69 IMPLICIT NONE 70 INTEGER, INTENT(IN) :: a 71 INTEGER, INTENT(OUT) :: b 72 b = 2 * a 73 END SUBROUTINE double 74 ELEMENTAL FUNCTION self(a) 75 IMPLICIT NONE 76 INTEGER, INTENT(IN) :: a 77 INTEGER :: self 78 self = a 79 END FUNCTION self 80END PROGRAM main 81 82! { dg-final { scan-tree-dump-times "_gfortran_internal_unpack" 3 "original" } } 83! { dg-final { cleanup-tree-dump "original" } } 84