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llvm-project/clang/test/OpenMP/requires_target_messages.cpp

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[OpenMP] Add checks for requires and target directives. Summary: The requires directive containing target related clauses must appear before any target region in the compilation unit. Reviewers: ABataev, AlexEichenberger, caomhin Reviewed By: ABataev Subscribers: guansong, jfb, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D60875 llvm-svn: 358709
2019-04-19 03:53:43 +08:00
// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s
void foo2() {
int a;
[OPENMP50]Full handling of atomic_default_mem_order in requires directive. According to OpenMP 5.0, The atomic_default_mem_order clause specifies the default memory ordering behavior for atomic constructs that must be provided by an implementation. If the default memory ordering is specified as seq_cst, all atomic constructs on which memory-order-clause is not specified behave as if the seq_cst clause appears. If the default memory ordering is specified as relaxed, all atomic constructs on which memory-order-clause is not specified behave as if the relaxed clause appears. If the default memory ordering is specified as acq_rel, atomic constructs on which memory-order-clause is not specified behave as if the release clause appears if the atomic write or atomic update operation is specified, as if the acquire clause appears if the atomic read operation is specified, and as if the acq_rel clause appears if the atomic captured update operation is specified.
2020-02-12 04:15:21 +08:00
#pragma omp target // expected-note 4 {{'target' previously encountered here}}
[OpenMP] Add checks for requires and target directives. Summary: The requires directive containing target related clauses must appear before any target region in the compilation unit. Reviewers: ABataev, AlexEichenberger, caomhin Reviewed By: ABataev Subscribers: guansong, jfb, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D60875 llvm-svn: 358709
2019-04-19 03:53:43 +08:00
{
a = a + 1;
}
}
#pragma omp requires atomic_default_mem_order(seq_cst)
[OPENMP50]Full handling of atomic_default_mem_order in requires directive. According to OpenMP 5.0, The atomic_default_mem_order clause specifies the default memory ordering behavior for atomic constructs that must be provided by an implementation. If the default memory ordering is specified as seq_cst, all atomic constructs on which memory-order-clause is not specified behave as if the seq_cst clause appears. If the default memory ordering is specified as relaxed, all atomic constructs on which memory-order-clause is not specified behave as if the relaxed clause appears. If the default memory ordering is specified as acq_rel, atomic constructs on which memory-order-clause is not specified behave as if the release clause appears if the atomic write or atomic update operation is specified, as if the acquire clause appears if the atomic read operation is specified, and as if the acq_rel clause appears if the atomic captured update operation is specified.
2020-02-12 04:15:21 +08:00
#pragma omp requires unified_address //expected-error {{'target' region encountered before requires directive with 'unified_address' clause}}
#pragma omp requires unified_shared_memory //expected-error {{'target' region encountered before requires directive with 'unified_shared_memory' clause}}
#pragma omp requires reverse_offload //expected-error {{'target' region encountered before requires directive with 'reverse_offload' clause}}
#pragma omp requires dynamic_allocators //expected-error {{'target' region encountered before requires directive with 'dynamic_allocators' clause}}