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//===--- OpenCLOptions.cpp---------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "clang/Basic/OpenCLOptions.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/TargetInfo.h"
namespace clang {
// First feature in a pair requires the second one to be supported.
static const std::pair<StringRef, StringRef> DependentFeaturesList[] = {
{"__opencl_c_read_write_images", "__opencl_c_images"},
{"__opencl_c_3d_image_writes", "__opencl_c_images"},
{"__opencl_c_pipes", "__opencl_c_generic_address_space"},
{"__opencl_c_device_enqueue", "__opencl_c_generic_address_space"},
{"__opencl_c_device_enqueue", "__opencl_c_program_scope_global_variables"}};
// Extensions and equivalent feature pairs.
static const std::pair<StringRef, StringRef> FeatureExtensionMap[] = {
{"cl_khr_fp64", "__opencl_c_fp64"},
{"cl_khr_3d_image_writes", "__opencl_c_3d_image_writes"}};
bool OpenCLOptions::isKnown(llvm::StringRef Ext) const {
return OptMap.find(Ext) != OptMap.end();
}
bool OpenCLOptions::isAvailableOption(llvm::StringRef Ext,
const LangOptions &LO) const {
if (!isKnown(Ext))
return false;
auto &OptInfo = OptMap.find(Ext)->getValue();
if (OptInfo.isCoreIn(LO) || OptInfo.isOptionalCoreIn(LO))
return isSupported(Ext, LO);
return isEnabled(Ext);
}
bool OpenCLOptions::isEnabled(llvm::StringRef Ext) const {
auto I = OptMap.find(Ext);
return I != OptMap.end() && I->getValue().Enabled;
}
bool OpenCLOptions::isWithPragma(llvm::StringRef Ext) const {
auto E = OptMap.find(Ext);
return E != OptMap.end() && E->second.WithPragma;
}
bool OpenCLOptions::isSupported(llvm::StringRef Ext,
const LangOptions &LO) const {
auto I = OptMap.find(Ext);
return I != OptMap.end() && I->getValue().Supported &&
I->getValue().isAvailableIn(LO);
}
bool OpenCLOptions::isSupportedCore(llvm::StringRef Ext,
const LangOptions &LO) const {
auto I = OptMap.find(Ext);
return I != OptMap.end() && I->getValue().Supported &&
I->getValue().isCoreIn(LO);
}
bool OpenCLOptions::isSupportedOptionalCore(llvm::StringRef Ext,
const LangOptions &LO) const {
auto I = OptMap.find(Ext);
return I != OptMap.end() && I->getValue().Supported &&
I->getValue().isOptionalCoreIn(LO);
}
bool OpenCLOptions::isSupportedCoreOrOptionalCore(llvm::StringRef Ext,
const LangOptions &LO) const {
return isSupportedCore(Ext, LO) || isSupportedOptionalCore(Ext, LO);
}
bool OpenCLOptions::isSupportedExtension(llvm::StringRef Ext,
const LangOptions &LO) const {
auto I = OptMap.find(Ext);
return I != OptMap.end() && I->getValue().Supported &&
I->getValue().isAvailableIn(LO) &&
!isSupportedCoreOrOptionalCore(Ext, LO);
}
void OpenCLOptions::enable(llvm::StringRef Ext, bool V) {
OptMap[Ext].Enabled = V;
}
void OpenCLOptions::acceptsPragma(llvm::StringRef Ext, bool V) {
OptMap[Ext].WithPragma = V;
}
void OpenCLOptions::support(llvm::StringRef Ext, bool V) {
assert(!Ext.empty() && "Extension is empty.");
assert(Ext[0] != '+' && Ext[0] != '-');
OptMap[Ext].Supported = V;
}
OpenCLOptions::OpenCLOptions() {
#define OPENCL_GENERIC_EXTENSION(Ext, ...) \
OptMap.insert_or_assign(#Ext, OpenCLOptionInfo{__VA_ARGS__});
#include "clang/Basic/OpenCLExtensions.def"
}
void OpenCLOptions::addSupport(const llvm::StringMap<bool> &FeaturesMap,
const LangOptions &Opts) {
for (const auto &F : FeaturesMap) {
const auto &Name = F.getKey();
if (F.getValue() && isKnown(Name) && OptMap[Name].isAvailableIn(Opts))
support(Name);
}
}
void OpenCLOptions::disableAll() {
for (auto &Opt : OptMap)
Opt.getValue().Enabled = false;
}
bool OpenCLOptions::diagnoseUnsupportedFeatureDependencies(
const TargetInfo &TI, DiagnosticsEngine &Diags) {
auto OpenCLFeaturesMap = TI.getSupportedOpenCLOpts();
bool IsValid = true;
for (auto &FeaturePair : DependentFeaturesList) {
auto Feature = FeaturePair.first;
auto Dep = FeaturePair.second;
if (TI.hasFeatureEnabled(OpenCLFeaturesMap, Feature) &&
!TI.hasFeatureEnabled(OpenCLFeaturesMap, Dep)) {
IsValid = false;
Diags.Report(diag::err_opencl_feature_requires) << Feature << Dep;
}
}
return IsValid;
}
bool OpenCLOptions::diagnoseFeatureExtensionDifferences(
const TargetInfo &TI, DiagnosticsEngine &Diags) {
auto OpenCLFeaturesMap = TI.getSupportedOpenCLOpts();
bool IsValid = true;
for (auto &ExtAndFeat : FeatureExtensionMap)
if (TI.hasFeatureEnabled(OpenCLFeaturesMap, ExtAndFeat.first) !=
TI.hasFeatureEnabled(OpenCLFeaturesMap, ExtAndFeat.second)) {
IsValid = false;
Diags.Report(diag::err_opencl_extension_and_feature_differs)
<< ExtAndFeat.first << ExtAndFeat.second;
}
return IsValid;
}
} // end namespace clang
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