Files
clang-p2996/openmp/libomptarget/test/offloading/non_contiguous_update.cpp
Joachim Protze 24f836e8fd [OpenMP][libomptarget] Separate lit tests for different offloading targets (2/2)
This patch fuses the RUN lines for most libomptarget tests. The previous patch
D101315 created separate test targets for each supported offloading triple.

This patch updates the RUN lines in libomptarget tests to use a generic run
line independent of the offloading target selected for the lit instance.

In cases, where no RUN line was defined for a specific offloading target,
the corresponding target is declared as XFAIL. If it turns out that a test
actually supports the target, the XFAIL line can be removed.

Differential Revision: https://reviews.llvm.org/D101326
2021-04-27 15:54:32 +02:00

97 lines
2.8 KiB
C++

// RUN: %libomptarget-compile-generic && env LIBOMPTARGET_DEBUG=1 %libomptarget-run-generic 2>&1 | %fcheck-generic -allow-empty -check-prefix=DEBUG
// REQUIRES: libomptarget-debug
#include <cstdio>
#include <cstdlib>
#include <cassert>
// Data structure definitions copied from OpenMP RTL.
struct __tgt_target_non_contig {
int64_t offset;
int64_t width;
int64_t stride;
};
enum tgt_map_type {
OMP_TGT_MAPTYPE_NON_CONTIG = 0x100000000000
};
// OpenMP RTL interfaces
#ifdef __cplusplus
extern "C" {
#endif
void __tgt_target_data_update(int64_t device_id, int32_t arg_num,
void **args_base, void **args, int64_t *arg_sizes,
int64_t *arg_types);
#ifdef __cplusplus
}
#endif
int main() {
// case 1
// int arr[3][4][5][6];
// #pragma omp target update to(arr[0:2][1:3][1:2][:])
// set up descriptor
__tgt_target_non_contig non_contig[5] = {
{0, 2, 480}, {1, 3, 120}, {1, 2, 24}, {0, 6, 4}, {0, 1, 4}};
int64_t size = 4, type = OMP_TGT_MAPTYPE_NON_CONTIG;
void *base;
void *begin = &non_contig;
int64_t *sizes = &size;
int64_t *types = &type;
// The below diagram is the visualization of the non-contiguous transfer after
// optimization. Note that each element represent the innermost dimension
// (unit size = 24) since the stride * count of last dimension is equal to the
// stride of second last dimension.
//
// OOOOO OOOOO OOOOO
// OXXOO OXXOO OOOOO
// OXXOO OXXOO OOOOO
// OXXOO OXXOO OOOOO
__tgt_target_data_update(/*device_id*/ -1, /*arg_num*/ 1, &base, &begin,
sizes, types);
// DEBUG: offset 144
// DEBUG: offset 264
// DEBUG: offset 384
// DEBUG: offset 624
// DEBUG: offset 744
// DEBUG: offset 864
// case 2
// double darr[3][4][5];
// #pragma omp target update to(darr[0:2:2][2:2][:2:2])
// set up descriptor
__tgt_target_non_contig non_contig_2[4] = {
{0, 2, 320}, {2, 2, 40}, {0, 2, 16}, {0, 1, 8}};
int64_t size_2 = 4, type_2 = OMP_TGT_MAPTYPE_NON_CONTIG;
void *base_2;
void *begin_2 = &non_contig_2;
int64_t *sizes_2 = &size_2;
int64_t *types_2 = &type_2;
// The below diagram is the visualization of the non-contiguous transfer after
// optimization. Note that each element represent the innermost dimension
// (unit size = 24) since the stride * count of last dimension is equal to the
// stride of second last dimension.
//
// OOOOO OOOOO OOOOO
// OOOOO OOOOO OOOOO
// XOXOO OOOOO XOXOO
// XOXOO OOOOO XOXOO
__tgt_target_data_update(/*device_id*/ -1, /*arg_num*/ 1, &base_2, &begin_2,
sizes_2, types_2);
// DEBUG: offset 80
// DEBUG: offset 96
// DEBUG: offset 120
// DEBUG: offset 136
// DEBUG: offset 400
// DEBUG: offset 416
// DEBUG: offset 440
// DEBUG: offset 456
return 0;
}