1 //===- AMDGPUIntrinsicInfo.cpp - AMDGPU Intrinsic Information ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //==-----------------------------------------------------------------------===//
11 /// \brief AMDGPU Implementation of the IntrinsicInfo class.
13 //===-----------------------------------------------------------------------===//
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"
23 AMDGPUIntrinsicInfo::AMDGPUIntrinsicInfo()
24 : TargetIntrinsicInfo() {}
26 static const char *const IntrinsicNameTable[] = {
27 #define GET_INTRINSIC_NAME_TABLE
28 #include "AMDGPUGenIntrinsics.inc"
29 #undef GET_INTRINSIC_NAME_TABLE
33 #define GET_INTRINSIC_ATTRIBUTES
34 #include "AMDGPUGenIntrinsics.inc"
35 #undef GET_INTRINSIC_ATTRIBUTES
38 StringRef AMDGPUIntrinsicInfo::getName(unsigned IntrID,
39 ArrayRef<Type *> Tys) const {
40 if (IntrID < Intrinsic::num_intrinsics)
43 assert(IntrID < AMDGPUIntrinsic::num_AMDGPU_intrinsics &&
44 "Invalid intrinsic ID");
46 return IntrinsicNameTable[IntrID - Intrinsic::num_intrinsics];
49 std::string AMDGPUIntrinsicInfo::getName(unsigned IntrID, Type **Tys,
50 unsigned NumTys) const {
51 return getName(IntrID, makeArrayRef(Tys, NumTys)).str();
54 FunctionType *AMDGPUIntrinsicInfo::getType(LLVMContext &Context, unsigned ID,
55 ArrayRef<Type*> Tys) const {
56 // FIXME: Re-use Intrinsic::getType machinery
58 case AMDGPUIntrinsic::amdgcn_fdiv_fast: {
59 Type *F32Ty = Type::getFloatTy(Context);
60 return FunctionType::get(F32Ty, { F32Ty, F32Ty }, false);
63 llvm_unreachable("unhandled intrinsic");
67 unsigned AMDGPUIntrinsicInfo::lookupName(const char *NameData,
69 StringRef Name(NameData, Len);
70 if (!Name.startswith("llvm."))
71 return 0; // All intrinsics start with 'llvm.'
73 // Look for a name match in our table. If the intrinsic is not overloaded,
74 // require an exact match. If it is overloaded, require a prefix match. The
75 // AMDGPU enum enum starts at Intrinsic::num_intrinsics.
76 int Idx = Intrinsic::lookupLLVMIntrinsicByName(IntrinsicNameTable, Name);
78 bool IsPrefixMatch = Name.size() > strlen(IntrinsicNameTable[Idx]);
79 return IsPrefixMatch == isOverloaded(Idx + 1)
80 ? Intrinsic::num_intrinsics + Idx
87 bool AMDGPUIntrinsicInfo::isOverloaded(unsigned id) const {
89 #define GET_INTRINSIC_OVERLOAD_TABLE
90 #include "AMDGPUGenIntrinsics.inc"
91 #undef GET_INTRINSIC_OVERLOAD_TABLE
94 Function *AMDGPUIntrinsicInfo::getDeclaration(Module *M, unsigned IntrID,
95 ArrayRef<Type *> Tys) const {
96 FunctionType *FTy = getType(M->getContext(), IntrID, Tys);
98 = cast<Function>(M->getOrInsertFunction(getName(IntrID, Tys), FTy));
100 AttributeSet AS = getAttributes(M->getContext(),
101 static_cast<AMDGPUIntrinsic::ID>(IntrID));
102 F->setAttributes(AS);
106 Function *AMDGPUIntrinsicInfo::getDeclaration(Module *M, unsigned IntrID,
108 unsigned NumTys) const {
109 return getDeclaration(M, IntrID, makeArrayRef(Tys, NumTys));