mirror of
https://github.com/c64scene-ar/llvm-6502.git
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431c73bc33
Fixes a use of uninitialized memory found by asan and valgind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182480 91177308-0d34-0410-b5e6-96231b3b80d8
112 lines
3.5 KiB
C++
112 lines
3.5 KiB
C++
//===-- MBlazeIntrinsicInfo.cpp - Intrinsic Information -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the MBlaze implementation of TargetIntrinsicInfo.
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//
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//===----------------------------------------------------------------------===//
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#include "MBlazeIntrinsicInfo.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/Intrinsics.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Type.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstring>
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using namespace llvm;
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namespace mblazeIntrinsic {
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enum ID {
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last_non_mblaze_intrinsic = Intrinsic::num_intrinsics-1,
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#define GET_INTRINSIC_ENUM_VALUES
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#include "MBlazeGenIntrinsics.inc"
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#undef GET_INTRINSIC_ENUM_VALUES
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, num_mblaze_intrinsics
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};
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#define GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
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#include "MBlazeGenIntrinsics.inc"
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#undef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
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}
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std::string MBlazeIntrinsicInfo::getName(unsigned IntrID, Type **Tys,
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unsigned numTys) const {
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static const char *const names[] = {
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#define GET_INTRINSIC_NAME_TABLE
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#include "MBlazeGenIntrinsics.inc"
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#undef GET_INTRINSIC_NAME_TABLE
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};
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assert(!isOverloaded(IntrID) && "MBlaze intrinsics are not overloaded");
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if (IntrID < Intrinsic::num_intrinsics)
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return 0;
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assert(IntrID < mblazeIntrinsic::num_mblaze_intrinsics &&
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"Invalid intrinsic ID");
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std::string Result(names[IntrID - Intrinsic::num_intrinsics]);
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return Result;
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}
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unsigned MBlazeIntrinsicInfo::
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lookupName(const char *Name, unsigned Len) const {
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if (!StringRef(Name, Len).startswith("llvm."))
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return 0; // All intrinsics start with 'llvm.'
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#define GET_FUNCTION_RECOGNIZER
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#include "MBlazeGenIntrinsics.inc"
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#undef GET_FUNCTION_RECOGNIZER
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return 0;
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}
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unsigned MBlazeIntrinsicInfo::
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lookupGCCName(const char *Name) const {
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return mblazeIntrinsic::getIntrinsicForGCCBuiltin("mblaze",Name);
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}
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bool MBlazeIntrinsicInfo::isOverloaded(unsigned IntrID) const {
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if (IntrID == 0)
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return false;
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unsigned id = IntrID - Intrinsic::num_intrinsics + 1;
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#define GET_INTRINSIC_OVERLOAD_TABLE
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#include "MBlazeGenIntrinsics.inc"
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#undef GET_INTRINSIC_OVERLOAD_TABLE
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}
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/// This defines the "getAttributes(LLVMContext &C, ID id)" method.
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#define GET_INTRINSIC_ATTRIBUTES
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#include "MBlazeGenIntrinsics.inc"
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#undef GET_INTRINSIC_ATTRIBUTES
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static FunctionType *getType(LLVMContext &Context, unsigned id) {
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Type *ResultTy = NULL;
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SmallVector<Type*, 8> ArgTys;
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bool IsVarArg = false;
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#define GET_INTRINSIC_GENERATOR
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#include "MBlazeGenIntrinsics.inc"
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#undef GET_INTRINSIC_GENERATOR
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return FunctionType::get(ResultTy, ArgTys, IsVarArg);
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}
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Function *MBlazeIntrinsicInfo::getDeclaration(Module *M, unsigned IntrID,
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Type **Tys,
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unsigned numTy) const {
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assert(!isOverloaded(IntrID) && "MBlaze intrinsics are not overloaded");
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AttributeSet AList = getAttributes(M->getContext(),
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(mblazeIntrinsic::ID) IntrID);
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return cast<Function>(M->getOrInsertFunction(getName(IntrID),
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getType(M->getContext(), IntrID),
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AList));
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}
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