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0336c75c36
This patch implements the parsing and sema support for the OpenMP
'from'-clause with potential user-defined mappers attached.
User-defined mappers are a new feature in OpenMP 5.0. A 'from'-clause
can have an explicit or implicit associated mapper, which instructs the
compiler to generate and use customized mapping functions. An example is
shown below:
struct S { int len; int *d; };
#pragma omp declare mapper(id: struct S s) map(s, s.d[0:s.len])
struct S ss;
#pragma omp target update from(mapper(id): ss) // use the mapper with name 'id' to map ss from device
Contributed-by: Lingda Li <lildmh@gmail.com>
Differential Revision: https://reviews.llvm.org/D58638
llvm-svn: 354817
59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
// RUN: %clang_cc1 -verify -fopenmp -ast-print %s | FileCheck %s
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// RUN: %clang_cc1 -fopenmp -emit-pch -o %t %s
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// RUN: %clang_cc1 -fopenmp -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
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// RUN: %clang_cc1 -verify -fopenmp-simd -ast-print %s | FileCheck %s
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// RUN: %clang_cc1 -fopenmp-simd -emit-pch -o %t %s
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// RUN: %clang_cc1 -fopenmp-simd -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
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// expected-no-diagnostics
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#ifndef HEADER
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#define HEADER
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// CHECK: struct vec {
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struct vec {
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int len;
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double *data;
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};
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// CHECK: };
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// CHECK: struct dat {
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struct dat {
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int i;
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double d;
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#pragma omp declare mapper(id: struct vec v) map(v.len)
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// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len){{$}}
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};
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// CHECK: };
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#pragma omp declare mapper(id: struct vec v) map(v.len)
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// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len){{$}}
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#pragma omp declare mapper(default : struct vec kk) map(kk.len) map(kk.data[0:2])
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// CHECK: #pragma omp declare mapper (default : struct vec kk) map(tofrom: kk.len) map(tofrom: kk.data[0:2]){{$}}
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#pragma omp declare mapper(struct dat d) map(to: d.d)
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// CHECK: #pragma omp declare mapper (default : struct dat d) map(to: d.d){{$}}
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// CHECK: int main() {
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int main() {
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#pragma omp declare mapper(id: struct vec v) map(v.len)
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// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len)
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{
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#pragma omp declare mapper(id: struct vec v) map(v.len)
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// CHECK: #pragma omp declare mapper (id : struct vec v) map(tofrom: v.len)
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struct vec vv;
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struct dat dd[10];
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#pragma omp target map(mapper(id) alloc: vv)
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// CHECK: #pragma omp target map(mapper(id),alloc: vv)
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{ vv.len++; }
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#pragma omp target map(mapper(default), from: dd[0:10])
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// CHECK: #pragma omp target map(mapper(default),from: dd[0:10])
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{ dd[0].i++; }
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#pragma omp target update to(mapper(id): vv) from(mapper(default): dd[0:10])
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// CHECK: #pragma omp target update to(mapper(id): vv) from(mapper(default): dd[0:10])
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}
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return 0;
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}
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// CHECK: }
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#endif
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