330d8983d2
In a nutshell, this moves our libomptarget code to populate the offload subproject. With this commit, users need to enable the new LLVM/Offload subproject as a runtime in their cmake configuration. No further changes are expected for downstream code. Tests and other components still depend on OpenMP and have also not been renamed. The results below are for a build in which OpenMP and Offload are enabled runtimes. In addition to the pure `git mv`, we needed to adjust some CMake files. Nothing is intended to change semantics. ``` ninja check-offload ``` Works with the X86 and AMDGPU offload tests ``` ninja check-openmp ``` Still works but doesn't build offload tests anymore. ``` ls install/lib ``` Shows all expected libraries, incl. - `libomptarget.devicertl.a` - `libomptarget-nvptx-sm_90.bc` - `libomptarget.rtl.amdgpu.so` -> `libomptarget.rtl.amdgpu.so.18git` - `libomptarget.so` -> `libomptarget.so.18git` Fixes: https://github.com/llvm/llvm-project/issues/75124 --------- Co-authored-by: Saiyedul Islam <Saiyedul.Islam@amd.com>
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
//===-- OffloadPolicy.h - Configuration of offload behavior -----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Configuration for offload behavior, e.g., if offload is disabled, can be
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// disabled, is mandatory, etc.
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//
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//===----------------------------------------------------------------------===//
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#ifndef OMPTARGET_OFFLOAD_POLICY_H
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#define OMPTARGET_OFFLOAD_POLICY_H
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#include "PluginManager.h"
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enum kmp_target_offload_kind_t {
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tgt_disabled = 0,
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tgt_default = 1,
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tgt_mandatory = 2
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};
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extern "C" int __kmpc_get_target_offload(void) __attribute__((weak));
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class OffloadPolicy {
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OffloadPolicy(PluginManager &PM) {
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// TODO: Check for OpenMP.
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switch ((kmp_target_offload_kind_t)__kmpc_get_target_offload()) {
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case tgt_disabled:
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Kind = DISABLED;
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return;
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case tgt_mandatory:
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Kind = MANDATORY;
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return;
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default:
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if (PM.getNumDevices()) {
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DP("Default TARGET OFFLOAD policy is now mandatory "
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"(devices were found)\n");
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Kind = MANDATORY;
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} else {
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DP("Default TARGET OFFLOAD policy is now disabled "
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"(no devices were found)\n");
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Kind = DISABLED;
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}
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return;
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};
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}
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public:
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static const OffloadPolicy &get(PluginManager &PM) {
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static OffloadPolicy OP(PM);
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return OP;
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}
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enum OffloadPolicyKind { DISABLED, MANDATORY };
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OffloadPolicyKind Kind = MANDATORY;
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};
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#endif // OMPTARGET_OFFLOAD_POLICY_H
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