clang 20.0.0git
TargetID.h
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1//===--- TargetID.h - Utilities for target ID -------------------*- C++ -*-===//
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
9#ifndef LLVM_CLANG_BASIC_TARGETID_H
10#define LLVM_CLANG_BASIC_TARGETID_H
11
12#include "llvm/ADT/SmallVector.h"
13#include "llvm/ADT/StringMap.h"
14#include "llvm/TargetParser/Triple.h"
15#include <optional>
16#include <set>
17
18namespace clang {
19
20/// Get all feature strings that can be used in target ID for \p Processor.
21/// Target ID is a processor name with optional feature strings
22/// postfixed by a plus or minus sign delimited by colons, e.g.
23/// gfx908:xnack+:sramecc-. Each processor have a limited
24/// number of predefined features when showing up in a target ID.
26getAllPossibleTargetIDFeatures(const llvm::Triple &T,
27 llvm::StringRef Processor);
28
29/// Get processor name from target ID.
30/// Returns canonical processor name or empty if the processor name is invalid.
31llvm::StringRef getProcessorFromTargetID(const llvm::Triple &T,
32 llvm::StringRef OffloadArch);
33
34/// Parse a target ID to get processor and feature map.
35/// Returns canonicalized processor name or std::nullopt if the target ID is
36/// invalid. Returns target ID features in \p FeatureMap if it is not null
37/// pointer. This function assumes \p OffloadArch is a valid target ID.
38/// If the target ID contains feature+, map it to true.
39/// If the target ID contains feature-, map it to false.
40/// If the target ID does not contain a feature (default), do not map it.
41std::optional<llvm::StringRef> parseTargetID(const llvm::Triple &T,
42 llvm::StringRef OffloadArch,
43 llvm::StringMap<bool> *FeatureMap);
44
45/// Returns canonical target ID, assuming \p Processor is canonical and all
46/// entries in \p Features are valid.
47std::string getCanonicalTargetID(llvm::StringRef Processor,
48 const llvm::StringMap<bool> &Features);
49
50/// Get the conflicted pair of target IDs for a compilation or a bundled code
51/// object, assuming \p TargetIDs are canonicalized. If there is no conflicts,
52/// returns std::nullopt.
53std::optional<std::pair<llvm::StringRef, llvm::StringRef>>
54getConflictTargetIDCombination(const std::set<llvm::StringRef> &TargetIDs);
55
56/// Check whether the provided target ID is compatible with the requested
57/// target ID.
58bool isCompatibleTargetID(llvm::StringRef Provided, llvm::StringRef Requested);
59} // namespace clang
60
61#endif
The JSON file list parser is used to communicate input to InstallAPI.
std::optional< llvm::StringRef > parseTargetID(const llvm::Triple &T, llvm::StringRef OffloadArch, llvm::StringMap< bool > *FeatureMap)
Parse a target ID to get processor and feature map.
Definition: TargetID.cpp:105
llvm::StringRef getProcessorFromTargetID(const llvm::Triple &T, llvm::StringRef OffloadArch)
Get processor name from target ID.
Definition: TargetID.cpp:54
OffloadArch
Definition: Cuda.h:55
std::optional< std::pair< llvm::StringRef, llvm::StringRef > > getConflictTargetIDCombination(const std::set< llvm::StringRef > &TargetIDs)
Get the conflicted pair of target IDs for a compilation or a bundled code object, assuming TargetIDs ...
Definition: TargetID.cpp:145
bool isCompatibleTargetID(llvm::StringRef Provided, llvm::StringRef Requested)
Check whether the provided target ID is compatible with the requested target ID.
Definition: TargetID.cpp:168
llvm::SmallVector< llvm::StringRef, 4 > getAllPossibleTargetIDFeatures(const llvm::Triple &T, llvm::StringRef Processor)
Get all feature strings that can be used in target ID for Processor.
Definition: TargetID.cpp:38
const FunctionProtoType * T
std::string getCanonicalTargetID(llvm::StringRef Processor, const llvm::StringMap< bool > &Features)
Returns canonical target ID, assuming Processor is canonical and all entries in Features are valid.
Definition: TargetID.cpp:130