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//===--- SPIR.h - Declare SPIR target feature support -----------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file declares SPIR TargetInfo objects.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H
#define LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/TargetOptions.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/Compiler.h"
namespace clang {
namespace targets {
static const unsigned SPIRDefIsPrivMap[] = {
0, // Default
1, // opencl_global
3, // opencl_local
2, // opencl_constant
0, // opencl_private
4, // opencl_generic
5, // opencl_global_device
6, // opencl_global_host
0, // cuda_device
0, // cuda_constant
0, // cuda_shared
// SYCL address space values for this map are dummy
0, // sycl_global
0, // sycl_global_device
0, // sycl_global_host
0, // sycl_local
0, // sycl_private
0, // ptr32_sptr
0, // ptr32_uptr
0 // ptr64
};
static const unsigned SPIRDefIsGenMap[] = {
4, // Default
// OpenCL address space values for this map are dummy and they can't be used
0, // opencl_global
0, // opencl_local
0, // opencl_constant
0, // opencl_private
0, // opencl_generic
0, // opencl_global_device
0, // opencl_global_host
0, // cuda_device
0, // cuda_constant
0, // cuda_shared
1, // sycl_global
5, // sycl_global_device
6, // sycl_global_host
3, // sycl_local
0, // sycl_private
0, // ptr32_sptr
0, // ptr32_uptr
0 // ptr64
};
class LLVM_LIBRARY_VISIBILITY SPIRTargetInfo : public TargetInfo {
public:
SPIRTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
: TargetInfo(Triple) {
assert(getTriple().getOS() == llvm::Triple::UnknownOS &&
"SPIR target must use unknown OS");
assert(getTriple().getEnvironment() == llvm::Triple::UnknownEnvironment &&
"SPIR target must use unknown environment type");
TLSSupported = false;
VLASupported = false;
LongWidth = LongAlign = 64;
AddrSpaceMap = &SPIRDefIsPrivMap;
UseAddrSpaceMapMangling = true;
HasLegalHalfType = true;
HasFloat16 = true;
// Define available target features
// These must be defined in sorted order!
NoAsmVariants = true;
}
void getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const override;
bool hasFeature(StringRef Feature) const override {
return Feature == "spir";
}
// SPIR supports the half type and the only llvm intrinsic allowed in SPIR is
// memcpy as per section 3 of the SPIR spec.
bool useFP16ConversionIntrinsics() const override { return false; }
ArrayRef<Builtin::Info> getTargetBuiltins() const override { return None; }
const char *getClobbers() const override { return ""; }
ArrayRef<const char *> getGCCRegNames() const override { return None; }
bool validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &info) const override {
return true;
}
ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override {
return None;
}
BuiltinVaListKind getBuiltinVaListKind() const override {
return TargetInfo::VoidPtrBuiltinVaList;
}
Optional<unsigned>
getDWARFAddressSpace(unsigned AddressSpace) const override {
return AddressSpace;
}
CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
return (CC == CC_SpirFunction || CC == CC_OpenCLKernel) ? CCCR_OK
: CCCR_Warning;
}
CallingConv getDefaultCallingConv() const override {
return CC_SpirFunction;
}
void setAddressSpaceMap(bool DefaultIsGeneric) {
AddrSpaceMap = DefaultIsGeneric ? &SPIRDefIsGenMap : &SPIRDefIsPrivMap;
}
void adjust(DiagnosticsEngine &Diags, LangOptions &Opts) override {
TargetInfo::adjust(Diags, Opts);
// FIXME: SYCL specification considers unannotated pointers and references
// to be pointing to the generic address space. See section 5.9.3 of
// SYCL 2020 specification.
// Currently, there is no way of representing SYCL's default address space
// language semantic along with the semantics of embedded C's default
// address space in the same address space map. Hence the map needs to be
// reset to allow mapping to the desired value of 'Default' entry for SYCL.
setAddressSpaceMap(/*DefaultIsGeneric=*/Opts.SYCLIsDevice);
}
void setSupportedOpenCLOpts() override {
// Assume all OpenCL extensions and optional core features are supported
// for SPIR since it is a generic target.
supportAllOpenCLOpts();
}
bool hasExtIntType() const override { return true; }
bool hasInt128Type() const override { return false; }
};
class LLVM_LIBRARY_VISIBILITY SPIR32TargetInfo : public SPIRTargetInfo {
public:
SPIR32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: SPIRTargetInfo(Triple, Opts) {
PointerWidth = PointerAlign = 32;
SizeType = TargetInfo::UnsignedInt;
PtrDiffType = IntPtrType = TargetInfo::SignedInt;
resetDataLayout("e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-"
"v96:128-v192:256-v256:256-v512:512-v1024:1024");
}
void getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const override;
};
class LLVM_LIBRARY_VISIBILITY SPIR64TargetInfo : public SPIRTargetInfo {
public:
SPIR64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: SPIRTargetInfo(Triple, Opts) {
PointerWidth = PointerAlign = 64;
SizeType = TargetInfo::UnsignedLong;
PtrDiffType = IntPtrType = TargetInfo::SignedLong;
resetDataLayout("e-i64:64-v16:16-v24:32-v32:32-v48:64-"
"v96:128-v192:256-v256:256-v512:512-v1024:1024");
}
void getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const override;
};
} // namespace targets
} // namespace clang
#endif // LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H
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