1 //===--- SPIR.h - Declare SPIR target feature support -----------*- 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 // This file declares SPIR TargetInfo objects. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H 14 #define LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H 15 16 #include "clang/Basic/TargetInfo.h" 17 #include "clang/Basic/TargetOptions.h" 18 #include "llvm/ADT/Triple.h" 19 #include "llvm/Support/Compiler.h" 20 21 namespace clang { 22 namespace targets { 23 24 static const unsigned SPIRAddrSpaceMap[] = { 25 0, // Default 26 1, // opencl_global 27 3, // opencl_local 28 2, // opencl_constant 29 0, // opencl_private 30 4, // opencl_generic 31 0, // cuda_device 32 0, // cuda_constant 33 0 // cuda_shared 34 }; 35 36 class LLVM_LIBRARY_VISIBILITY SPIRTargetInfo : public TargetInfo { 37 public: 38 SPIRTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 39 : TargetInfo(Triple) { 40 assert(getTriple().getOS() == llvm::Triple::UnknownOS && 41 "SPIR target must use unknown OS"); 42 assert(getTriple().getEnvironment() == llvm::Triple::UnknownEnvironment && 43 "SPIR target must use unknown environment type"); 44 TLSSupported = false; 45 VLASupported = false; 46 LongWidth = LongAlign = 64; 47 AddrSpaceMap = &SPIRAddrSpaceMap; 48 UseAddrSpaceMapMangling = true; 49 HasLegalHalfType = true; 50 HasFloat16 = true; 51 // Define available target features 52 // These must be defined in sorted order! 53 NoAsmVariants = true; 54 } 55 56 void getTargetDefines(const LangOptions &Opts, 57 MacroBuilder &Builder) const override; 58 59 bool hasFeature(StringRef Feature) const override { 60 return Feature == "spir"; 61 } 62 63 // SPIR supports the half type and the only llvm intrinsic allowed in SPIR is 64 // memcpy as per section 3 of the SPIR spec. 65 bool useFP16ConversionIntrinsics() const override { return false; } 66 67 ArrayRef<Builtin::Info> getTargetBuiltins() const override { return None; } 68 69 const char *getClobbers() const override { return ""; } 70 71 ArrayRef<const char *> getGCCRegNames() const override { return None; } 72 73 bool validateAsmConstraint(const char *&Name, 74 TargetInfo::ConstraintInfo &info) const override { 75 return true; 76 } 77 78 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override { 79 return None; 80 } 81 82 BuiltinVaListKind getBuiltinVaListKind() const override { 83 return TargetInfo::VoidPtrBuiltinVaList; 84 } 85 86 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override { 87 return (CC == CC_SpirFunction || CC == CC_OpenCLKernel) ? CCCR_OK 88 : CCCR_Warning; 89 } 90 91 CallingConv getDefaultCallingConv() const override { 92 return CC_SpirFunction; 93 } 94 95 void setSupportedOpenCLOpts() override { 96 // Assume all OpenCL extensions and optional core features are supported 97 // for SPIR since it is a generic target. 98 getSupportedOpenCLOpts().supportAll(); 99 } 100 }; 101 class LLVM_LIBRARY_VISIBILITY SPIR32TargetInfo : public SPIRTargetInfo { 102 public: 103 SPIR32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 104 : SPIRTargetInfo(Triple, Opts) { 105 PointerWidth = PointerAlign = 32; 106 SizeType = TargetInfo::UnsignedInt; 107 PtrDiffType = IntPtrType = TargetInfo::SignedInt; 108 resetDataLayout("e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-" 109 "v96:128-v192:256-v256:256-v512:512-v1024:1024"); 110 } 111 112 void getTargetDefines(const LangOptions &Opts, 113 MacroBuilder &Builder) const override; 114 }; 115 116 class LLVM_LIBRARY_VISIBILITY SPIR64TargetInfo : public SPIRTargetInfo { 117 public: 118 SPIR64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 119 : SPIRTargetInfo(Triple, Opts) { 120 PointerWidth = PointerAlign = 64; 121 SizeType = TargetInfo::UnsignedLong; 122 PtrDiffType = IntPtrType = TargetInfo::SignedLong; 123 resetDataLayout("e-i64:64-v16:16-v24:32-v32:32-v48:64-" 124 "v96:128-v192:256-v256:256-v512:512-v1024:1024"); 125 } 126 127 void getTargetDefines(const LangOptions &Opts, 128 MacroBuilder &Builder) const override; 129 }; 130 } // namespace targets 131 } // namespace clang 132 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H 133