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* [gcc r13-5006] openmp: Fix up finish_omp_target_clauses [PR108286]
@ 2023-01-05 11:01 Jakub Jelinek
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From: Jakub Jelinek @ 2023-01-05 11:01 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:29c3218618ef6177dc33871b26c8fbd9b21eabe1
commit r13-5006-g29c3218618ef6177dc33871b26c8fbd9b21eabe1
Author: Jakub Jelinek <jakub@redhat.com>
Date: Thu Jan 5 11:57:30 2023 +0100
openmp: Fix up finish_omp_target_clauses [PR108286]
The comment in the loop says that we shouldn't add a map clause if such
a clause exists already, but the loop was actually using OMP_CLAUSE_DECL
on any clause. Target construct can have various clauses which don't
have OMP_CLAUSE_DECL at all (e.g. nowait, device or if) or clause
where it means something different (e.g. privatization clauses, allocate,
depend).
So, only check OMP_CLAUSE_DECL on OMP_CLAUSE_MAP clauses.
2023-01-05 Jakub Jelinek <jakub@redhat.com>
PR c++/108286
* semantics.cc (finish_omp_target_clauses): Ignore clauses other than
OMP_CLAUSE_MAP.
* testsuite/libgomp.c++/pr108286.C: New test.
Diff:
---
gcc/cp/semantics.cc | 4 +++-
libgomp/testsuite/libgomp.c++/pr108286.C | 29 +++++++++++++++++++++++++++++
2 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc
index ab52e56d6c1..ef5bf2430b1 100644
--- a/gcc/cp/semantics.cc
+++ b/gcc/cp/semantics.cc
@@ -9825,7 +9825,9 @@ finish_omp_target_clauses (location_t loc, tree body, tree *clauses_ptr)
for (tree c = *clauses_ptr; c; c = OMP_CLAUSE_CHAIN (c))
{
- /* If map(this->ptr[:N] already exists, avoid creating another
+ if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_MAP)
+ continue;
+ /* If map(this->ptr[:N]) already exists, avoid creating another
such map. */
tree decl = OMP_CLAUSE_DECL (c);
if ((TREE_CODE (decl) == INDIRECT_REF
diff --git a/libgomp/testsuite/libgomp.c++/pr108286.C b/libgomp/testsuite/libgomp.c++/pr108286.C
new file mode 100644
index 00000000000..ee88c2f9fd0
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c++/pr108286.C
@@ -0,0 +1,29 @@
+// PR c++/108286
+// { dg-do run }
+
+struct S {
+ int
+ foo ()
+ {
+ int res = 0;
+#pragma omp target map(size, ptr[:size], res) nowait
+ res = ptr[size - 1];
+#pragma omp taskwait
+ return res;
+ }
+
+ unsigned size;
+ int *ptr;
+};
+
+int
+main ()
+{
+ S s;
+ int buf[5];
+ s.size = 5;
+ s.ptr = buf;
+ buf[4] = 42;
+ if (s.foo () != 42)
+ __builtin_abort ();
+}
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