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llvm-project/clang/test/OpenMP/declare_mapper_ast_print.c

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[OpenMP 5.0] Parsing/sema support for "omp declare mapper" directive. This patch implements parsing and sema for "omp declare mapper" directive. User defined mapper, i.e., declare mapper directive, is a new feature in OpenMP 5.0. It is introduced to extend existing map clauses for the purpose of simplifying the copy of complex data structures between host and device (i.e., deep copy). An example is shown below: struct S { int len; int *d; }; #pragma omp declare mapper(struct S s) map(s, s.d[0:s.len]) // Memory region that d points to is also mapped using this mapper. Contributed-by: Lingda Li <lildmh@gmail.com> Differential Revision: https://reviews.llvm.org/D56326 llvm-svn: 352906
2019-02-02 04:25:04 +08:00
// RUN: %clang_cc1 -verify -fopenmp -ast-print %s | FileCheck %s
// RUN: %clang_cc1 -fopenmp -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp-simd -ast-print %s | FileCheck %s
// RUN: %clang_cc1 -fopenmp-simd -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp-simd -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
// CHECK: struct vec {
struct vec {
int len;
double *data;
};
// CHECK: };
// CHECK: struct dat {
struct dat {
int i;
double d;
#pragma omp declare mapper(id: struct vec v) map(v.len)
// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len){{$}}
};
// CHECK: };
#pragma omp declare mapper(id: struct vec v) map(v.len)
// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len){{$}}
#pragma omp declare mapper(default : struct vec kk) map(kk.len) map(kk.data[0:2])
// CHECK: #pragma omp declare mapper (default : struct vec kk) map(tofrom: kk.len) map(tofrom: kk.data[0:2]){{$}}
#pragma omp declare mapper(struct dat d) map(to: d.d)
// CHECK: #pragma omp declare mapper (default : struct dat d) map(to: d.d){{$}}
// CHECK: int main() {
int main() {
#pragma omp declare mapper(id: struct vec v) map(v.len)
// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len)
{
#pragma omp declare mapper(id: struct vec v) map(v.len)
// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len)
}
return 0;
}
// CHECK: }
#endif