#include "llvm/Type.h"
#include "llvm/CodeGen/IntrinsicLowering.h"
#include "llvm/Support/Streams.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/ADT/SmallVector.h"
using namespace llvm;
template <class ArgIt>
-static Function *EnsureFunctionExists(Module &M, const char *Name,
- ArgIt ArgBegin, ArgIt ArgEnd,
- const Type *RetTy) {
- if (Function *F = M.getNamedFunction(Name)) return F;
- // It doesn't already exist in the program, insert a new definition now.
+static void EnsureFunctionExists(Module &M, const char *Name,
+ ArgIt ArgBegin, ArgIt ArgEnd,
+ const Type *RetTy) {
+ // Insert a correctly-typed definition now.
std::vector<const Type *> ParamTys;
for (ArgIt I = ArgBegin; I != ArgEnd; ++I)
ParamTys.push_back(I->getType());
- return M.getOrInsertFunction(Name, FunctionType::get(RetTy, ParamTys, false));
+ M.getOrInsertFunction(Name, FunctionType::get(RetTy, ParamTys, false));
}
/// ReplaceCallWith - This function is used when we want to lower an intrinsic
/// prototype doesn't match the arguments we expect to pass in.
template <class ArgIt>
static CallInst *ReplaceCallWith(const char *NewFn, CallInst *CI,
- ArgIt ArgBegin, ArgIt ArgEnd, bool isSigned,
- const Type *RetTy, Function *&FCache) {
+ ArgIt ArgBegin, ArgIt ArgEnd,
+ const Type *RetTy, Constant *&FCache) {
if (!FCache) {
// If we haven't already looked up this function, check to see if the
// program already contains a function with this name.
Module *M = CI->getParent()->getParent()->getParent();
- FCache = M->getNamedFunction(NewFn);
- if (!FCache) {
- // It doesn't already exist in the program, insert a new definition now.
- std::vector<const Type *> ParamTys;
- for (ArgIt I = ArgBegin; I != ArgEnd; ++I)
- ParamTys.push_back((*I)->getType());
- FCache = M->getOrInsertFunction(NewFn,
- FunctionType::get(RetTy, ParamTys, false));
- }
- }
-
- const FunctionType *FT = FCache->getFunctionType();
- std::vector<Value*> Operands;
- unsigned ArgNo = 0;
- for (ArgIt I = ArgBegin; I != ArgEnd && ArgNo != FT->getNumParams();
- ++I, ++ArgNo) {
- Value *Arg = *I;
- if (Arg->getType() != FT->getParamType(ArgNo)) {
- Instruction::CastOps opcode = CastInst::getCastOpcode(Arg, isSigned,
- FT->getParamType(ArgNo), isSigned);
- Arg = CastInst::create(opcode, Arg, FT->getParamType(ArgNo),
- Arg->getName(), CI);
- }
- Operands.push_back(Arg);
+ // Get or insert the definition now.
+ std::vector<const Type *> ParamTys;
+ for (ArgIt I = ArgBegin; I != ArgEnd; ++I)
+ ParamTys.push_back((*I)->getType());
+ FCache = M->getOrInsertFunction(NewFn,
+ FunctionType::get(RetTy, ParamTys, false));
}
- // Pass nulls into any additional arguments...
- for (; ArgNo != FT->getNumParams(); ++ArgNo)
- Operands.push_back(Constant::getNullValue(FT->getParamType(ArgNo)));
- std::string Name = CI->getName(); CI->setName("");
- if (FT->getReturnType() == Type::VoidTy) Name.clear();
- CallInst *NewCI = new CallInst(FCache, Operands, Name, CI);
- if (!CI->use_empty()) {
- Value *V = NewCI;
- if (CI->getType() != NewCI->getType()) {
- Instruction::CastOps opcode = CastInst::getCastOpcode(NewCI, isSigned,
- CI->getType(), isSigned);
- V = CastInst::create(opcode, NewCI, CI->getType(), Name, CI);
- }
- CI->replaceAllUsesWith(V);
- }
+ SmallVector<Value*, 8> Operands(ArgBegin, ArgEnd);
+ CallInst *NewCI = new CallInst(FCache, &Operands[0], Operands.size(),
+ CI->getName(), CI);
+ if (!CI->use_empty())
+ CI->replaceAllUsesWith(NewCI);
return NewCI;
}
void IntrinsicLowering::AddPrototypes(Module &M) {
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
- if (I->isExternal() && !I->use_empty())
+ if (I->isDeclaration() && !I->use_empty())
switch (I->getIntrinsicID()) {
default: break;
case Intrinsic::setjmp:
break;
case Intrinsic::memcpy_i32:
case Intrinsic::memcpy_i64:
- EnsureFunctionExists(M, "memcpy", I->arg_begin(), --I->arg_end(),
- I->arg_begin()->getType());
+ M.getOrInsertFunction("memcpy", PointerType::get(Type::Int8Ty),
+ PointerType::get(Type::Int8Ty),
+ PointerType::get(Type::Int8Ty),
+ TD.getIntPtrType(), (Type *)0);
break;
case Intrinsic::memmove_i32:
case Intrinsic::memmove_i64:
- EnsureFunctionExists(M, "memmove", I->arg_begin(), --I->arg_end(),
- I->arg_begin()->getType());
+ M.getOrInsertFunction("memmove", PointerType::get(Type::Int8Ty),
+ PointerType::get(Type::Int8Ty),
+ PointerType::get(Type::Int8Ty),
+ TD.getIntPtrType(), (Type *)0);
break;
case Intrinsic::memset_i32:
case Intrinsic::memset_i64:
M.getOrInsertFunction("memset", PointerType::get(Type::Int8Ty),
- PointerType::get(Type::Int8Ty),
- Type::Int32Ty, (--(--I->arg_end()))->getType(),
- (Type *)0);
- break;
- case Intrinsic::isunordered_f32:
- case Intrinsic::isunordered_f64:
- EnsureFunctionExists(M, "isunordered", I->arg_begin(), I->arg_end(),
- Type::BoolTy);
+ PointerType::get(Type::Int8Ty), Type::Int32Ty,
+ TD.getIntPtrType(), (Type *)0);
break;
case Intrinsic::sqrt_f32:
case Intrinsic::sqrt_f64:
switch(BitSize) {
default: assert(0 && "Unhandled type size of value to byteswap!");
case 16: {
- Value *Tmp1 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.2",IP);
- Value *Tmp2 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.1",IP);
+ Value *Tmp1 = BinaryOperator::createShl(V,
+ ConstantInt::get(V->getType(),8),"bswap.2",IP);
+ Value *Tmp2 = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(),8),"bswap.1",IP);
V = BinaryOperator::createOr(Tmp1, Tmp2, "bswap.i16", IP);
break;
}
case 32: {
- Value *Tmp4 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.4", IP);
- Value *Tmp3 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.3",IP);
- Value *Tmp2 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.2",IP);
- Value *Tmp1 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.1", IP);
+ Value *Tmp4 = BinaryOperator::createShl(V,
+ ConstantInt::get(V->getType(),24),"bswap.4", IP);
+ Value *Tmp3 = BinaryOperator::createShl(V,
+ ConstantInt::get(V->getType(),8),"bswap.3",IP);
+ Value *Tmp2 = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(),8),"bswap.2",IP);
+ Value *Tmp1 = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(),24),"bswap.1", IP);
Tmp3 = BinaryOperator::createAnd(Tmp3,
ConstantInt::get(Type::Int32Ty, 0xFF0000),
"bswap.and3", IP);
break;
}
case 64: {
- Value *Tmp8 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,56),"bswap.8", IP);
- Value *Tmp7 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,40),"bswap.7", IP);
- Value *Tmp6 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.6", IP);
- Value *Tmp5 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.5", IP);
- Value* Tmp4 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.4", IP);
- Value* Tmp3 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.3", IP);
- Value* Tmp2 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,40),"bswap.2", IP);
- Value* Tmp1 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,56),"bswap.1", IP);
+ Value *Tmp8 = BinaryOperator::createShl(V,
+ ConstantInt::get(V->getType(),56),"bswap.8", IP);
+ Value *Tmp7 = BinaryOperator::createShl(V,
+ ConstantInt::get(V->getType(),40),"bswap.7", IP);
+ Value *Tmp6 = BinaryOperator::createShl(V,
+ ConstantInt::get(V->getType(),24),"bswap.6", IP);
+ Value *Tmp5 = BinaryOperator::createShl(V,
+ ConstantInt::get(V->getType(),8),"bswap.5", IP);
+ Value* Tmp4 = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(),8),"bswap.4", IP);
+ Value* Tmp3 = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(),24),"bswap.3", IP);
+ Value* Tmp2 = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(),40),"bswap.2", IP);
+ Value* Tmp1 = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(),56),"bswap.1", IP);
Tmp7 = BinaryOperator::createAnd(Tmp7,
ConstantInt::get(Type::Int64Ty,
0xFF000000000000ULL),
for (unsigned i = 1, ct = 0; i != BitSize; i <<= 1, ++ct) {
Value *MaskCst = ConstantInt::get(V->getType(), MaskValues[ct]);
Value *LHS = BinaryOperator::createAnd(V, MaskCst, "cppop.and1", IP);
- Value *VShift = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty, i), "ctpop.sh", IP);
+ Value *VShift = BinaryOperator::createLShr(V,
+ ConstantInt::get(V->getType(), i), "ctpop.sh", IP);
Value *RHS = BinaryOperator::createAnd(VShift, MaskCst, "cppop.and2", IP);
V = BinaryOperator::createAdd(LHS, RHS, "ctpop.step", IP);
}
unsigned BitSize = V->getType()->getPrimitiveSizeInBits();
for (unsigned i = 1; i != BitSize; i <<= 1) {
- Value *ShVal = ConstantInt::get(Type::Int8Ty, i);
- ShVal = new ShiftInst(Instruction::LShr, V, ShVal, "ctlz.sh", IP);
+ Value *ShVal = ConstantInt::get(V->getType(), i);
+ ShVal = BinaryOperator::createLShr(V, ShVal, "ctlz.sh", IP);
V = BinaryOperator::createOr(V, ShVal, "ctlz.step", IP);
}
// by the lowerinvoke pass. In both cases, the right thing to do is to
// convert the call to an explicit setjmp or longjmp call.
case Intrinsic::setjmp: {
- static Function *SetjmpFCache = 0;
- static const unsigned castOpcodes[] = { Instruction::BitCast };
+ static Constant *SetjmpFCache = 0;
Value *V = ReplaceCallWith("setjmp", CI, CI->op_begin()+1, CI->op_end(),
- castOpcodes, Type::Int32Ty, SetjmpFCache);
+ Type::Int32Ty, SetjmpFCache);
if (CI->getType() != Type::VoidTy)
CI->replaceAllUsesWith(V);
break;
break;
case Intrinsic::longjmp: {
- static Function *LongjmpFCache = 0;
- static const unsigned castOpcodes[] =
- { Instruction::BitCast, 0 };
+ static Constant *LongjmpFCache = 0;
ReplaceCallWith("longjmp", CI, CI->op_begin()+1, CI->op_end(),
- castOpcodes, Type::VoidTy, LongjmpFCache);
+ Type::VoidTy, LongjmpFCache);
break;
}
case Intrinsic::siglongjmp: {
// Insert the call to abort
- static Function *AbortFCache = 0;
- static const unsigned castOpcodes[] =
- { Instruction::BitCast, 0 };
+ static Constant *AbortFCache = 0;
ReplaceCallWith("abort", CI, CI->op_end(), CI->op_end(),
- castOpcodes, Type::VoidTy, AbortFCache);
+ Type::VoidTy, AbortFCache);
break;
}
case Intrinsic::ctpop_i8:
case Intrinsic::dbg_region_end:
case Intrinsic::dbg_func_start:
case Intrinsic::dbg_declare:
- break; // Simply strip out debugging intrinsics
+ case Intrinsic::eh_exception:
+ case Intrinsic::eh_selector:
+ case Intrinsic::eh_filter:
+ break; // Simply strip out debugging and eh intrinsics
- case Intrinsic::memcpy_i32: {
- static Function *MemcpyFCache = 0;
- ReplaceCallWith("memcpy", CI, CI->op_begin()+1, CI->op_end()-1,
- false, (*(CI->op_begin()+1))->getType(), MemcpyFCache);
- break;
- }
+ case Intrinsic::memcpy_i32:
case Intrinsic::memcpy_i64: {
- static Function *MemcpyFCache = 0;
- ReplaceCallWith("memcpy", CI, CI->op_begin()+1, CI->op_end()-1,
- false, (*(CI->op_begin()+1))->getType(), MemcpyFCache);
- break;
- }
- case Intrinsic::memmove_i32: {
- static Function *MemmoveFCache = 0;
- ReplaceCallWith("memmove", CI, CI->op_begin()+1, CI->op_end()-1,
- false, (*(CI->op_begin()+1))->getType(), MemmoveFCache);
+ static Constant *MemcpyFCache = 0;
+ Value *Size = CI->getOperand(3);
+ const Type *IntPtr = TD.getIntPtrType();
+ if (Size->getType()->getPrimitiveSizeInBits() <
+ IntPtr->getPrimitiveSizeInBits())
+ Size = new ZExtInst(Size, IntPtr, "", CI);
+ else if (Size->getType()->getPrimitiveSizeInBits() >
+ IntPtr->getPrimitiveSizeInBits())
+ Size = new TruncInst(Size, IntPtr, "", CI);
+ Value *Ops[3];
+ Ops[0] = CI->getOperand(1);
+ Ops[1] = CI->getOperand(2);
+ Ops[2] = Size;
+ ReplaceCallWith("memcpy", CI, Ops, Ops+3, CI->getOperand(1)->getType(),
+ MemcpyFCache);
break;
}
+ case Intrinsic::memmove_i32:
case Intrinsic::memmove_i64: {
- static Function *MemmoveFCache = 0;
- ReplaceCallWith("memmove", CI, CI->op_begin()+1, CI->op_end()-1,
- false, (*(CI->op_begin()+1))->getType(), MemmoveFCache);
+ static Constant *MemmoveFCache = 0;
+ Value *Size = CI->getOperand(3);
+ const Type *IntPtr = TD.getIntPtrType();
+ if (Size->getType()->getPrimitiveSizeInBits() <
+ IntPtr->getPrimitiveSizeInBits())
+ Size = new ZExtInst(Size, IntPtr, "", CI);
+ else if (Size->getType()->getPrimitiveSizeInBits() >
+ IntPtr->getPrimitiveSizeInBits())
+ Size = new TruncInst(Size, IntPtr, "", CI);
+ Value *Ops[3];
+ Ops[0] = CI->getOperand(1);
+ Ops[1] = CI->getOperand(2);
+ Ops[2] = Size;
+ ReplaceCallWith("memmove", CI, Ops, Ops+3, CI->getOperand(1)->getType(),
+ MemmoveFCache);
break;
}
- case Intrinsic::memset_i32: {
- static Function *MemsetFCache = 0;
- ReplaceCallWith("memset", CI, CI->op_begin()+1, CI->op_end()-1,
- true, (*(CI->op_begin()+1))->getType(), MemsetFCache);
- }
+ case Intrinsic::memset_i32:
case Intrinsic::memset_i64: {
- static Function *MemsetFCache = 0;
- ReplaceCallWith("memset", CI, CI->op_begin()+1, CI->op_end()-1,
- true, (*(CI->op_begin()+1))->getType(), MemsetFCache);
- break;
- }
- case Intrinsic::isunordered_f32:
- case Intrinsic::isunordered_f64: {
- Value *L = CI->getOperand(1);
- Value *R = CI->getOperand(2);
-
- Value *LIsNan = new FCmpInst(FCmpInst::FCMP_ONE, L, L, "LIsNan", CI);
- Value *RIsNan = new FCmpInst(FCmpInst::FCMP_ONE, R, R, "RIsNan", CI);
- CI->replaceAllUsesWith(
- BinaryOperator::create(Instruction::Or, LIsNan, RIsNan,
- "isunordered", CI));
+ static Constant *MemsetFCache = 0;
+ Value *Size = CI->getOperand(3);
+ const Type *IntPtr = TD.getIntPtrType();
+ if (Size->getType()->getPrimitiveSizeInBits() <
+ IntPtr->getPrimitiveSizeInBits())
+ Size = new ZExtInst(Size, IntPtr, "", CI);
+ else if (Size->getType()->getPrimitiveSizeInBits() >
+ IntPtr->getPrimitiveSizeInBits())
+ Size = new TruncInst(Size, IntPtr, "", CI);
+ Value *Ops[3];
+ Ops[0] = CI->getOperand(1);
+ // Extend the amount to i32.
+ Ops[1] = new ZExtInst(CI->getOperand(2), Type::Int32Ty, "", CI);
+ Ops[2] = Size;
+ ReplaceCallWith("memset", CI, Ops, Ops+3, CI->getOperand(1)->getType(),
+ MemsetFCache);
break;
}
case Intrinsic::sqrt_f32: {
- static Function *sqrtfFCache = 0;
+ static Constant *sqrtfFCache = 0;
ReplaceCallWith("sqrtf", CI, CI->op_begin()+1, CI->op_end(),
- false, Type::FloatTy, sqrtfFCache);
+ Type::FloatTy, sqrtfFCache);
break;
}
case Intrinsic::sqrt_f64: {
- static Function *sqrtFCache = 0;
+ static Constant *sqrtFCache = 0;
ReplaceCallWith("sqrt", CI, CI->op_begin()+1, CI->op_end(),
- false, Type::DoubleTy, sqrtFCache);
+ Type::DoubleTy, sqrtFCache);
break;
}
}
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