1 //===- AMDGPUIntrinsicInfo.cpp - AMDGPU Intrinsic Information ---*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //==-----------------------------------------------------------------------===// 9 // 10 /// \file 11 /// \brief AMDGPU Implementation of the IntrinsicInfo class. 12 // 13 //===-----------------------------------------------------------------------===// 14 15 #include "AMDGPUIntrinsicInfo.h" 16 #include "AMDGPUSubtarget.h" 17 #include "llvm/IR/DerivedTypes.h" 18 #include "llvm/IR/Intrinsics.h" 19 #include "llvm/IR/Module.h" 20 21 using namespace llvm; 22 23 AMDGPUIntrinsicInfo::AMDGPUIntrinsicInfo() 24 : TargetIntrinsicInfo() {} 25 26 static const char *const IntrinsicNameTable[] = { 27 #define GET_INTRINSIC_NAME_TABLE 28 #include "AMDGPUGenIntrinsics.inc" 29 #undef GET_INTRINSIC_NAME_TABLE 30 }; 31 32 std::string AMDGPUIntrinsicInfo::getName(unsigned IntrID, Type **Tys, 33 unsigned numTys) const { 34 if (IntrID < Intrinsic::num_intrinsics) { 35 return nullptr; 36 } 37 assert(IntrID < AMDGPUIntrinsic::num_AMDGPU_intrinsics && 38 "Invalid intrinsic ID"); 39 40 std::string Result(IntrinsicNameTable[IntrID - Intrinsic::num_intrinsics]); 41 return Result; 42 } 43 44 unsigned AMDGPUIntrinsicInfo::lookupName(const char *NameData, 45 unsigned Len) const { 46 StringRef Name(NameData, Len); 47 if (!Name.startswith("llvm.")) 48 return 0; // All intrinsics start with 'llvm.' 49 50 // Look for a name match in our table. If the intrinsic is not overloaded, 51 // require an exact match. If it is overloaded, require a prefix match. The 52 // AMDGPU enum enum starts at Intrinsic::num_intrinsics. 53 int Idx = Intrinsic::lookupLLVMIntrinsicByName(IntrinsicNameTable, Name); 54 if (Idx >= 0) { 55 bool IsPrefixMatch = Name.size() > strlen(IntrinsicNameTable[Idx]); 56 return IsPrefixMatch == isOverloaded(Idx + 1) 57 ? Intrinsic::num_intrinsics + Idx 58 : 0; 59 } 60 61 return 0; 62 } 63 64 bool AMDGPUIntrinsicInfo::isOverloaded(unsigned id) const { 65 // Overload Table 66 #define GET_INTRINSIC_OVERLOAD_TABLE 67 #include "AMDGPUGenIntrinsics.inc" 68 #undef GET_INTRINSIC_OVERLOAD_TABLE 69 } 70 71 Function *AMDGPUIntrinsicInfo::getDeclaration(Module *M, unsigned IntrID, 72 Type **Tys, 73 unsigned numTys) const { 74 llvm_unreachable("Not implemented"); 75 } 76
