[gcc/devel/omp/gcc-12] openmp: Fix up get-mapped-ptr-1.{c,f90} tests

[Tobias Burnus]

https://gcc.gnu.org/g:11b4126ce10d1d708dc6866faa50f0bf4f546de8

commit 11b4126ce10d1d708dc6866faa50f0bf4f546de8
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Jul 5 11:27:03 2022 +0200

    openmp: Fix up get-mapped-ptr-1.{c,f90} tests
    
    On Tue, Jun 14, 2022 at 06:41:37PM +0200, Thomas Schwinge wrote:
    > In an offloading configuration, I'm seeing:
    >
    >     PASS: libgomp.fortran/get-mapped-ptr-1.f90   -O  (test for excess errors)
    >     [-PASS:-]{+FAIL:+} libgomp.fortran/get-mapped-ptr-1.f90   -O  execution test
    >
    > Does that one need similar treatment?
    
    I assume not just that but libgomp.c-c++-common/get-mapped-ptr-1.c too?
    
    It both needs the same treatment, and in the get-mapped-ptr-1.c
    case there is even UB, while the Fortran version was using c_loc (q)
    as the host pointer, in C/C++ it was using q which was value of
    uninitialized pointer.
    
    2022-06-15  Jakub Jelinek  <jakub@redhat.com>
    
            * testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c (main): Initialize
            q to ddress of an automatic variable.  Use -5 instead of -1 in
            omp_get_mapped_ptr call.  Add test with omp_initial_device.
            * testsuite/libgomp.fortran/get-mapped-ptr-1.f90 (main): Use -5 instead
            of -1 in omp_get_mapped_ptr call.  Add test with omp_initial_device.
            Renumber stop arguments afterwards.
    
    (cherry picked from commit 7bfb3f488a7ec58109a859c66bf4eddc6354065b)

Diff:
---
 libgomp/ChangeLog.omp                                     | 12 ++++++++++++
 libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c | 10 ++++++++--
 libgomp/testsuite/libgomp.fortran/get-mapped-ptr-1.f90    | 12 ++++++++----
 3 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/libgomp/ChangeLog.omp b/libgomp/ChangeLog.omp
index 6bc07725af1..cfb47039178 100644
--- a/libgomp/ChangeLog.omp
+++ b/libgomp/ChangeLog.omp
@@ -1,3 +1,15 @@
+2022-07-05  Tobias Burnus  <tobias@codesourcery.com>
+
+	Backport from mainline:
+	2022-06-15  Jakub Jelinek  <jakub@redhat.com>
+
+	* testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c (main): Initialize
+	q to ddress of an automatic variable.  Use -5 instead of -1 in
+	omp_get_mapped_ptr call.  Add test with omp_initial_device.
+	* testsuite/libgomp.fortran/get-mapped-ptr-1.f90 (main): Use -5 instead
+	of -1 in omp_get_mapped_ptr call.  Add test with omp_initial_device.
+	Renumber stop arguments afterwards.
+
 2022-07-05  Tobias Burnus  <tobias@codesourcery.com>
 
 	Backport from mainline:
diff --git a/libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c b/libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c
index 97a60ca9541..4708ae86bfe 100644
--- a/libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c
+++ b/libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c
@@ -6,7 +6,10 @@ main ()
 {
   int d = omp_get_default_device ();
   int id = omp_get_initial_device ();
-  void *p , *q;
+  int x;
+  void *p, *q;
+
+  q = (void *) &x;
 
   if (d < 0 || d >= omp_get_num_devices ())
     d = id;
@@ -18,7 +21,7 @@ main ()
   if (omp_target_associate_ptr (q, p, sizeof (int), 0, d) != 0)
     return 0;
 
-  if (omp_get_mapped_ptr (q, -1) != NULL)
+  if (omp_get_mapped_ptr (q, -5) != NULL)
     abort ();
 
   if (omp_get_mapped_ptr (q, omp_get_num_devices () + 1) != NULL)
@@ -27,6 +30,9 @@ main ()
   if (omp_get_mapped_ptr (q, id) != q)
     abort ();
 
+  if (omp_get_mapped_ptr (q, omp_initial_device) != q)
+    abort ();
+
   if (omp_get_mapped_ptr (q, d) != p)
     abort ();
 
diff --git a/libgomp/testsuite/libgomp.fortran/get-mapped-ptr-1.f90 b/libgomp/testsuite/libgomp.fortran/get-mapped-ptr-1.f90
index de05179ce9f..9b6334f50d8 100644
--- a/libgomp/testsuite/libgomp.fortran/get-mapped-ptr-1.f90
+++ b/libgomp/testsuite/libgomp.fortran/get-mapped-ptr-1.f90
@@ -19,7 +19,7 @@ program main
   if (omp_target_associate_ptr (c_loc (q), p, c_sizeof (q), &
                                 0_c_size_t, d) == 0) then
 
-    if(c_associated (omp_get_mapped_ptr (c_loc (q), -1))) &
+    if(c_associated (omp_get_mapped_ptr (c_loc (q), -5))) &
       stop 1
 
     if(c_associated (omp_get_mapped_ptr (c_loc (q), &
@@ -29,14 +29,18 @@ program main
     if(.not. c_associated (omp_get_mapped_ptr (c_loc (q), id), c_loc (q))) &
       stop 3
 
-    if(.not. c_associated (omp_get_mapped_ptr (c_loc (q), d), p)) &
+    if(.not. c_associated (omp_get_mapped_ptr (c_loc (q), omp_initial_device), &
+                           c_loc (q))) &
       stop 4
 
-    if (omp_target_disassociate_ptr (c_loc (q), d) /= 0) &
+    if(.not. c_associated (omp_get_mapped_ptr (c_loc (q), d), p)) &
       stop 5
 
-    if(c_associated (omp_get_mapped_ptr (c_loc (q), d))) &
+    if (omp_target_disassociate_ptr (c_loc (q), d) /= 0) &
       stop 6
+
+    if(c_associated (omp_get_mapped_ptr (c_loc (q), d))) &
+      stop 7
   end if
 
   call omp_target_free (p, d)