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//===--- SPIR.cpp - Implement SPIR and SPIR-V target feature support ------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file implements SPIR and SPIR-V TargetInfo objects.
//
//===----------------------------------------------------------------------===//
#include "SPIR.h"
#include "AMDGPU.h"
#include "clang/Basic/MacroBuilder.h"
#include "clang/Basic/TargetBuiltins.h"
#include "llvm/TargetParser/TargetParser.h"
using namespace clang;
using namespace clang::targets;
static constexpr int NumBuiltins =
clang::SPIRV::LastTSBuiltin - Builtin::FirstTSBuiltin;
#define GET_BUILTIN_STR_TABLE
#include "clang/Basic/BuiltinsSPIRVCommon.inc"
#undef GET_BUILTIN_STR_TABLE
static constexpr Builtin::Info BuiltinInfos[] = {
#define GET_BUILTIN_INFOS
#include "clang/Basic/BuiltinsSPIRVCommon.inc"
#undef GET_BUILTIN_INFOS
};
namespace CL {
#define GET_BUILTIN_STR_TABLE
#include "clang/Basic/BuiltinsSPIRVCL.inc"
#undef GET_BUILTIN_STR_TABLE
static constexpr Builtin::Info BuiltinInfos[] = {
#define GET_BUILTIN_INFOS
#include "clang/Basic/BuiltinsSPIRVCL.inc"
#undef GET_BUILTIN_INFOS
};
} // namespace CL
namespace VK {
#define GET_BUILTIN_STR_TABLE
#include "clang/Basic/BuiltinsSPIRVVK.inc"
#undef GET_BUILTIN_STR_TABLE
static constexpr Builtin::Info BuiltinInfos[] = {
#define GET_BUILTIN_INFOS
#include "clang/Basic/BuiltinsSPIRVVK.inc"
#undef GET_BUILTIN_INFOS
};
} // namespace VK
static_assert(std::size(BuiltinInfos) + std::size(CL::BuiltinInfos) +
std::size(VK::BuiltinInfos) ==
NumBuiltins);
llvm::SmallVector<Builtin::InfosShard>
BaseSPIRVTargetInfo::getTargetBuiltins() const {
return {{&BuiltinStrings, BuiltinInfos},
{&VK::BuiltinStrings, VK::BuiltinInfos},
{&CL::BuiltinStrings, CL::BuiltinInfos}};
}
void SPIRTargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
DefineStd(Builder, "SPIR", Opts);
}
void SPIR32TargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
SPIRTargetInfo::getTargetDefines(Opts, Builder);
DefineStd(Builder, "SPIR32", Opts);
}
void SPIR64TargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
SPIRTargetInfo::getTargetDefines(Opts, Builder);
DefineStd(Builder, "SPIR64", Opts);
}
void BaseSPIRVTargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
DefineStd(Builder, "SPIRV", Opts);
if (Opts.HLSL)
DefineStd(Builder, "spirv", Opts);
}
void SPIRVTargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
BaseSPIRVTargetInfo::getTargetDefines(Opts, Builder);
}
void SPIRV32TargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
BaseSPIRVTargetInfo::getTargetDefines(Opts, Builder);
DefineStd(Builder, "SPIRV32", Opts);
}
void SPIRV64TargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
BaseSPIRVTargetInfo::getTargetDefines(Opts, Builder);
DefineStd(Builder, "SPIRV64", Opts);
}
static const AMDGPUTargetInfo AMDGPUTI(llvm::Triple("amdgcn-amd-amdhsa"), {});
ArrayRef<const char *> SPIRV64AMDGCNTargetInfo::getGCCRegNames() const {
return AMDGPUTI.getGCCRegNames();
}
bool SPIRV64AMDGCNTargetInfo::initFeatureMap(
llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef,
const std::vector<std::string> &FeatureVec) const {
llvm::AMDGPU::fillAMDGPUFeatureMap({}, getTriple(), Features);
return TargetInfo::initFeatureMap(Features, Diags, {}, FeatureVec);
}
bool SPIRV64AMDGCNTargetInfo::validateAsmConstraint(
const char *&Name, TargetInfo::ConstraintInfo &Info) const {
return AMDGPUTI.validateAsmConstraint(Name, Info);
}
std::string
SPIRV64AMDGCNTargetInfo::convertConstraint(const char *&Constraint) const {
return AMDGPUTI.convertConstraint(Constraint);
}
llvm::SmallVector<Builtin::InfosShard>
SPIRV64AMDGCNTargetInfo::getTargetBuiltins() const {
return AMDGPUTI.getTargetBuiltins();
}
void SPIRV64AMDGCNTargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
BaseSPIRVTargetInfo::getTargetDefines(Opts, Builder);
DefineStd(Builder, "SPIRV64", Opts);
Builder.defineMacro("__AMD__");
Builder.defineMacro("__AMDGPU__");
Builder.defineMacro("__AMDGCN__");
}
void SPIRV64AMDGCNTargetInfo::setAuxTarget(const TargetInfo *Aux) {
assert(Aux && "Cannot invoke setAuxTarget without a valid auxiliary target!");
// This is a 1:1 copy of AMDGPUTargetInfo::setAuxTarget()
assert(HalfFormat == Aux->HalfFormat);
assert(FloatFormat == Aux->FloatFormat);
assert(DoubleFormat == Aux->DoubleFormat);
// On x86_64 long double is 80-bit extended precision format, which is
// not supported by AMDGPU. 128-bit floating point format is also not
// supported by AMDGPU. Therefore keep its own format for these two types.
auto SaveLongDoubleFormat = LongDoubleFormat;
auto SaveFloat128Format = Float128Format;
auto SaveLongDoubleWidth = LongDoubleWidth;
auto SaveLongDoubleAlign = LongDoubleAlign;
copyAuxTarget(Aux);
LongDoubleFormat = SaveLongDoubleFormat;
Float128Format = SaveFloat128Format;
LongDoubleWidth = SaveLongDoubleWidth;
LongDoubleAlign = SaveLongDoubleAlign;
// For certain builtin types support on the host target, claim they are
// supported to pass the compilation of the host code during the device-side
// compilation.
// FIXME: As the side effect, we also accept `__float128` uses in the device
// code. To reject these builtin types supported in the host target but not in
// the device target, one approach would support `device_builtin` attribute
// so that we could tell the device builtin types from the host ones. This
// also solves the different representations of the same builtin type, such
// as `size_t` in the MSVC environment.
if (Aux->hasFloat128Type()) {
HasFloat128 = true;
Float128Format = DoubleFormat;
}
}
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