re PR fortran/67679 (-Wunitialized reports on compiler-generated variables)

2019-02-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/67679
    * gfortran.dg/warn_undefined_1.f90: New test.

From-SVN: r268747

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f7b9f0b..789f5ad 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-02-10  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+       PR fortran/67679
+       * gfortran.dg/warn_undefined_1.f90: New test.
+
 2019-02-10  Jakub Jelinek  <jakub@redhat.com>
 
        PR tree-optimization/89268

diff --git a/gcc/testsuite/gfortran.dg/warn_undefined_1.f90 b/gcc/testsuite/gfortran.dg/warn_undefined_1.f90
new file mode 100644 (file)
index 0000000..67f7ca9
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/warn_undefined_1.f90
@@ -0,0 +1,28 @@
+! { dg-do compile }
+! { dg-options "-O2 -Wuninitialized" }
+! PR 67679 - this used to cause an undefined warning for
+! variables generated by the compiler.
+
+subroutine s(h, Gmin, r)
+
+   implicit none
+   real, intent(in) ::  Gmin(3), h(3)
+   integer, intent(inout) :: r
+
+   integer :: x_min(3), x_max(3), k, iStat
+   logical, dimension(:), allocatable :: check
+
+   do k = 1,1
+      x_min(k) = int(Gmin(k)*h(k))
+      x_max(k) = int(Gmin(k)*h(k))
+   end do
+
+   allocate(check(x_min(1):x_max(1)),stat=iStat)
+
+   check(:) = .false.
+
+   do k = x_min(1),x_max(1)
+            r = r + 1
+   end do
+
+end