6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
62 lines
2.7 KiB
C++
62 lines
2.7 KiB
C++
//===--- TargetID.h - Utilities for target ID -------------------*- 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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#ifndef LLVM_CLANG_BASIC_TARGETID_H
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#define LLVM_CLANG_BASIC_TARGETID_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/TargetParser/Triple.h"
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#include <optional>
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#include <set>
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namespace clang {
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/// Get all feature strings that can be used in target ID for \p Processor.
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/// Target ID is a processor name with optional feature strings
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/// postfixed by a plus or minus sign delimited by colons, e.g.
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/// gfx908:xnack+:sramecc-. Each processor have a limited
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/// number of predefined features when showing up in a target ID.
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llvm::SmallVector<llvm::StringRef, 4>
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getAllPossibleTargetIDFeatures(const llvm::Triple &T,
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llvm::StringRef Processor);
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/// Get processor name from target ID.
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/// Returns canonical processor name or empty if the processor name is invalid.
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llvm::StringRef getProcessorFromTargetID(const llvm::Triple &T,
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llvm::StringRef OffloadArch);
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/// Parse a target ID to get processor and feature map.
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/// Returns canonicalized processor name or std::nullopt if the target ID is
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/// invalid. Returns target ID features in \p FeatureMap if it is not null
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/// pointer. This function assumes \p OffloadArch is a valid target ID.
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/// If the target ID contains feature+, map it to true.
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/// If the target ID contains feature-, map it to false.
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/// If the target ID does not contain a feature (default), do not map it.
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std::optional<llvm::StringRef> parseTargetID(const llvm::Triple &T,
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llvm::StringRef OffloadArch,
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llvm::StringMap<bool> *FeatureMap);
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/// Returns canonical target ID, assuming \p Processor is canonical and all
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/// entries in \p Features are valid.
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std::string getCanonicalTargetID(llvm::StringRef Processor,
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const llvm::StringMap<bool> &Features);
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/// Get the conflicted pair of target IDs for a compilation or a bundled code
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/// object, assuming \p TargetIDs are canonicalized. If there is no conflicts,
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/// returns std::nullopt.
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std::optional<std::pair<llvm::StringRef, llvm::StringRef>>
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getConflictTargetIDCombination(const std::set<llvm::StringRef> &TargetIDs);
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/// Check whether the provided target ID is compatible with the requested
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/// target ID.
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bool isCompatibleTargetID(llvm::StringRef Provided, llvm::StringRef Requested);
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} // namespace clang
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#endif
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