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* [gcc r12-7915] openmp: Ensure DECL_CONTEXT of OpenMP iterators in templates [PR105092]
@ 2022-03-30 7:41 Jakub Jelinek
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From: Jakub Jelinek @ 2022-03-30 7:41 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:410f39f56c14b195f066b9a18a3c6e8ffa03f848
commit r12-7915-g410f39f56c14b195f066b9a18a3c6e8ffa03f848
Author: Jakub Jelinek <jakub@redhat.com>
Date: Wed Mar 30 09:38:51 2022 +0200
openmp: Ensure DECL_CONTEXT of OpenMP iterators in templates [PR105092]
cp_parser_omp_iterators does:
DECL_ARTIFICIAL (iter_var) = 1;
DECL_CONTEXT (iter_var) = current_function_decl;
pushdecl (iter_var);
on the newly created iterator vars, but when we instantiate templates
containing them, we just tsubst_decl them (which apparently for
automatic vars clears DECL_CONTEXT with a comment that pushdecl should
be called on them later).
The result is that we have automatic vars in the IL which have NULL
DECL_CONTEXT and the analyzer is upset about those.
Fixed by setting DECL_CONTEXT and calling pushdecl during the instantiation.
2022-03-30 Jakub Jelinek <jakub@redhat.com>
PR c++/105092
* pt.cc (tsubst_omp_clause_decl): When handling iterators, set
DECL_CONTEXT of the iterator var to current_function_decl and
call pushdecl.
* g++.dg/gomp/pr105092.C: New test.
Diff:
---
gcc/cp/pt.cc | 2 ++
gcc/testsuite/g++.dg/gomp/pr105092.C | 26 ++++++++++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index ece839c22e3..bdba5cf3b85 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -17575,6 +17575,8 @@ tsubst_omp_clause_decl (tree decl, tree args, tsubst_flags_t complain,
*tp = copy_node (it);
TREE_VEC_ELT (*tp, 0)
= tsubst_decl (TREE_VEC_ELT (it, 0), args, complain);
+ DECL_CONTEXT (TREE_VEC_ELT (*tp, 0)) = current_function_decl;
+ pushdecl (TREE_VEC_ELT (*tp, 0));
TREE_VEC_ELT (*tp, 1)
= tsubst_expr (TREE_VEC_ELT (it, 1), args, complain, in_decl,
/*integral_constant_expression_p=*/false);
diff --git a/gcc/testsuite/g++.dg/gomp/pr105092.C b/gcc/testsuite/g++.dg/gomp/pr105092.C
new file mode 100644
index 00000000000..5f4e38aae40
--- /dev/null
+++ b/gcc/testsuite/g++.dg/gomp/pr105092.C
@@ -0,0 +1,26 @@
+// PR c++/105092
+// { dg-do compile { target analyzer } }
+// { dg-options "-fanalyzer -fopenmp" }
+
+struct S { S () {} };
+
+template <typename T>
+struct U {
+ T c[10];
+ U () {
+#pragma omp task affinity (iterator (i = 0 : 10 : 1): c[i])
+ ;
+ }
+};
+
+template <typename T>
+struct V {
+ T c[10];
+ V () {
+#pragma omp task depend (iterator (i = 0 : 10 : 1), inout: c[i])
+ ;
+ }
+};
+
+U<S> u;
+V<S> v;
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