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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/bound_8.f90
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+! { dg-do run }
+! { dg-options "-Warray-temporaries -fall-intrinsics" }
+
+! Check that LBOUND/UBOUND/SIZE/SHAPE of array-expressions get simplified
+! in certain cases.
+! There should no array-temporaries warnings pop up, as this means that
+! the intrinsic call has not been properly simplified.
+
+! Contributed by Daniel Kraft, d@domob.eu.
+
+PROGRAM main
+ IMPLICIT NONE
+
+ ! Some explicitely shaped arrays and allocatable ones.
+ INTEGER :: a(2, 3), b(0:1, 4:6)
+ INTEGER, ALLOCATABLE :: x(:, :), y(:, :)
+
+ ! Allocate to matching sizes and initialize.
+ ALLOCATE (x(-1:0, -3:-1), y(11:12, 3))
+ a = 0
+ b = 1
+ x = 2
+ y = 3
+
+ ! Run the checks. This should be simplified without array temporaries,
+ ! and additionally correct (of course).
+
+ ! Shape of expressions known at compile-time.
+ IF (ANY (LBOUND (a + b) /= 1)) CALL abort ()
+ IF (ANY (UBOUND (2 * b) /= (/ 2, 3 /))) CALL abort ()
+ IF (ANY (SHAPE (- b) /= (/ 2, 3 /))) CALL abort ()
+ IF (SIZE (a ** 2) /= 6) CALL abort
+
+ ! Shape unknown at compile-time.
+ IF (ANY (LBOUND (x + y) /= 1)) CALL abort ()
+ IF (SIZE (x ** 2) /= 6) CALL abort ()
+
+ ! Unfortunately, the array-version of UBOUND and SHAPE keep generating
+ ! temporary arrays for their results (not for the operation). Thus we
+ ! can not check SHAPE in this case and do UBOUND in the single-dimension
+ ! version.
+ IF (UBOUND (2 * y, 1) /= 2 .OR. UBOUND (2 * y, 2) /= 3) CALL abort ()
+ !IF (ANY (SHAPE (- y) /= (/ 2, 3 /))) CALL abort ()
+END PROGRAM main