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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===--- TargetID.h - Utilities for target ID -------------------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |||
| 9 | #ifndef LLVM_CLANG_BASIC_TARGETID_H |
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| 10 | #define LLVM_CLANG_BASIC_TARGETID_H |
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| 11 | |||
| 12 | #include "llvm/ADT/SmallVector.h" |
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| 13 | #include "llvm/ADT/StringMap.h" |
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| 14 | #include "llvm/ADT/Triple.h" |
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| 15 | #include <optional> |
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| 16 | #include <set> |
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| 17 | |||
| 18 | namespace clang { |
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| 19 | |||
| 20 | /// Get all feature strings that can be used in target ID for \p Processor. |
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| 21 | /// Target ID is a processor name with optional feature strings |
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| 22 | /// postfixed by a plus or minus sign delimited by colons, e.g. |
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| 23 | /// gfx908:xnack+:sramecc-. Each processor have a limited |
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| 24 | /// number of predefined features when showing up in a target ID. |
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| 25 | llvm::SmallVector<llvm::StringRef, 4> |
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| 26 | getAllPossibleTargetIDFeatures(const llvm::Triple &T, |
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| 27 | llvm::StringRef Processor); |
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| 28 | |||
| 29 | /// Get processor name from target ID. |
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| 30 | /// Returns canonical processor name or empty if the processor name is invalid. |
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| 31 | llvm::StringRef getProcessorFromTargetID(const llvm::Triple &T, |
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| 32 | llvm::StringRef OffloadArch); |
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| 33 | |||
| 34 | /// Parse a target ID to get processor and feature map. |
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| 35 | /// Returns canonicalized processor name or std::nullopt if the target ID is |
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| 36 | /// invalid. Returns target ID features in \p FeatureMap if it is not null |
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| 37 | /// pointer. This function assumes \p OffloadArch is a valid target ID. |
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| 38 | /// If the target ID contains feature+, map it to true. |
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| 39 | /// If the target ID contains feature-, map it to false. |
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| 40 | /// If the target ID does not contain a feature (default), do not map it. |
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| 41 | std::optional<llvm::StringRef> parseTargetID(const llvm::Triple &T, |
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| 42 | llvm::StringRef OffloadArch, |
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| 43 | llvm::StringMap<bool> *FeatureMap); |
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| 44 | |||
| 45 | /// Returns canonical target ID, assuming \p Processor is canonical and all |
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| 46 | /// entries in \p Features are valid. |
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| 47 | std::string getCanonicalTargetID(llvm::StringRef Processor, |
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| 48 | const llvm::StringMap<bool> &Features); |
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| 49 | |||
| 50 | /// Get the conflicted pair of target IDs for a compilation or a bundled code |
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| 51 | /// object, assuming \p TargetIDs are canonicalized. If there is no conflicts, |
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| 52 | /// returns std::nullopt. |
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| 53 | std::optional<std::pair<llvm::StringRef, llvm::StringRef>> |
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| 54 | getConflictTargetIDCombination(const std::set<llvm::StringRef> &TargetIDs); |
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| 55 | |||
| 56 | /// Check whether the provided target ID is compatible with the requested |
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| 57 | /// target ID. |
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| 58 | bool isCompatibleTargetID(llvm::StringRef Provided, llvm::StringRef Requested); |
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| 59 | } // namespace clang |
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| 60 | |||
| 61 | #endif |