1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/alloc_comp_constructor_6.f90 b/gcc/testsuite/gfortran.dg/alloc_comp_constructor_6.f90
new file mode 100644
index 000000000..b2ac4f723
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/alloc_comp_constructor_6.f90
@@ -0,0 +1,38 @@
+! { dg-do run }
+! { dg-options "-fdefault-integer-8 -O2" }
+! Tests the fix for PR34143, where the implicit type
+! conversion in the derived type constructor would fail,
+! when 'yy' was not allocated.  The testscase is an
+! extract from alloc_comp_constructor.f90.
+!
+! Reported by Thomas Koenig <tkoenig@gcc.gnu.org>
+!
+Program test_constructor
+    implicit none
+    type :: thytype
+        integer(4) :: a(2,2)
+    end type thytype
+    type :: mytype
+        integer(4), allocatable :: a(:, :)
+        type(thytype), allocatable :: q(:)
+    end type mytype
+    integer, allocatable :: yy(:,:)
+    type (thytype), allocatable :: bar(:)
+    call non_alloc
+    call alloc
+contains
+    subroutine non_alloc
+      type (mytype) :: x
+      x = mytype(yy, bar)
+      if (allocated (x%a) .or. allocated (x%q)) call abort
+    end subroutine non_alloc
+    subroutine alloc
+      type (mytype) :: x
+      allocate (yy(2,2))
+      allocate (bar(2))
+      yy = reshape ([10,20,30,40],[2,2])
+      bar = thytype (reshape ([1,2,3,4],[2,2]))
+      x = mytype(yy, bar)
+      if (.not.allocated (x%a) .or. .not.allocated (x%q)) call abort
+    end subroutine alloc
+end program test_constructor