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| 1 | //===- offload_impl.hpp- Implementation helpers for the Offload library ---===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | #pragma once |
| 9 | |
| 10 | #include "PluginInterface.h" |
| 11 | #include <OffloadAPI.h> |
| 12 | #include <iostream> |
| 13 | #include <memory> |
| 14 | #include <optional> |
| 15 | #include <set> |
| 16 | #include <string> |
| 17 | #include <unordered_set> |
| 18 | #include <vector> |
| 19 | |
| 20 | #include "llvm/ADT/DenseSet.h" |
| 21 | #include "llvm/ADT/StringRef.h" |
| 22 | #include "llvm/ADT/StringSet.h" |
| 23 | #include "llvm/Support/Error.h" |
| 24 | |
| 25 | namespace llvm { |
| 26 | namespace offload { |
| 27 | bool isTracingEnabled(); |
| 28 | bool isValidationEnabled(); |
| 29 | bool isOffloadInitialized(); |
| 30 | } // namespace offload |
| 31 | } // namespace llvm |
| 32 | |
| 33 | // Use the StringSet container to efficiently deduplicate repeated error |
| 34 | // strings (e.g. if the same error is hit constantly in a long running program) |
| 35 | llvm::StringSet<> &errorStrs(); |
| 36 | |
| 37 | // Use an unordered_set to avoid duplicates of error structs themselves. |
| 38 | // We cannot store the structs directly as returned pointers to them must always |
| 39 | // be valid, and a rehash of the set may invalidate them. This requires |
| 40 | // custom hash and equal_to function objects. |
| 41 | using ErrPtrT = std::unique_ptr<ol_error_struct_t>; |
| 42 | struct ErrPtrEqual { |
| 43 | bool operator()(const ErrPtrT &lhs, const ErrPtrT &rhs) const { |
| 44 | if (!lhs && !rhs) { |
| 45 | return true; |
| 46 | } |
| 47 | if (!lhs || !rhs) { |
| 48 | return false; |
| 49 | } |
| 50 | |
| 51 | bool StrsEqual = false; |
| 52 | if (lhs->Details == NULL && rhs->Details == NULL) { |
| 53 | StrsEqual = true; |
| 54 | } else if (lhs->Details != NULL && rhs->Details != NULL) { |
| 55 | StrsEqual = (std::strcmp(s1: lhs->Details, s2: rhs->Details) == 0); |
| 56 | } |
| 57 | return (lhs->Code == rhs->Code) && StrsEqual; |
| 58 | } |
| 59 | }; |
| 60 | struct ErrPtrHash { |
| 61 | size_t operator()(const ErrPtrT &e) const { |
| 62 | if (!e) { |
| 63 | // We shouldn't store empty errors (i.e. success), but just in case |
| 64 | return 0lu; |
| 65 | } else { |
| 66 | return std::hash<int>{}(e->Code); |
| 67 | } |
| 68 | } |
| 69 | }; |
| 70 | using ErrSetT = std::unordered_set<ErrPtrT, ErrPtrHash, ErrPtrEqual>; |
| 71 | ErrSetT &errors(); |
| 72 | |
| 73 | namespace { |
| 74 | ol_errc_t GetErrorCode(std::error_code Code) { |
| 75 | if (Code.category() == |
| 76 | error::make_error_code(error::ErrorCode::SUCCESS).category()) |
| 77 | return static_cast<ol_errc_t>(Code.value()); |
| 78 | |
| 79 | return OL_ERRC_UNKNOWN; |
| 80 | } |
| 81 | } // namespace |
| 82 | |
| 83 | inline ol_result_t llvmErrorToOffloadError(llvm::Error &&Err) { |
| 84 | if (!Err) { |
| 85 | // No error |
| 86 | return nullptr; |
| 87 | } |
| 88 | |
| 89 | ol_errc_t ErrCode; |
| 90 | llvm::StringRef Details; |
| 91 | |
| 92 | llvm::handleAllErrors(E: std::move(Err), Handlers: [&](llvm::StringError &Err) { |
| 93 | ErrCode = GetErrorCode(Err.convertToErrorCode()); |
| 94 | Details = errorStrs().insert(key: Err.getMessage()).first->getKeyData(); |
| 95 | }); |
| 96 | |
| 97 | auto NewErr = std::unique_ptr<ol_error_struct_t>( |
| 98 | new ol_error_struct_t{ErrCode, Details.data()}); |
| 99 | return errors().emplace(std::move(NewErr)).first->get(); |
| 100 | } |
| 101 |
Warning: That file was not part of the compilation database. It may have many parsing errors.