//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/Support/Streams.h"
#include "llvm/Target/TargetData.h"
#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/STLExtras.h"
using namespace llvm;
template <class ArgIt>
FunctionType::get(RetTy, ParamTys, false));
}
- SmallVector<Value*, 8> Operands(ArgBegin, ArgEnd);
- CallInst *NewCI = new CallInst(FCache, &Operands[0], Operands.size(),
- CI->getName(), CI);
+ SmallVector<Value *, 8> Args(ArgBegin, ArgEnd);
+ CallInst *NewCI = CallInst::Create(FCache, Args.begin(), Args.end(),
+ CI->getName(), CI);
if (!CI->use_empty())
CI->replaceAllUsesWith(NewCI);
return NewCI;
break;
case Intrinsic::memcpy_i32:
case Intrinsic::memcpy_i64:
- M.getOrInsertFunction("memcpy", PointerType::get(Type::Int8Ty),
- PointerType::get(Type::Int8Ty),
- PointerType::get(Type::Int8Ty),
+ M.getOrInsertFunction("memcpy", PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
TD.getIntPtrType(), (Type *)0);
break;
case Intrinsic::memmove_i32:
case Intrinsic::memmove_i64:
- M.getOrInsertFunction("memmove", PointerType::get(Type::Int8Ty),
- PointerType::get(Type::Int8Ty),
- PointerType::get(Type::Int8Ty),
+ M.getOrInsertFunction("memmove", PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(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,
+ M.getOrInsertFunction("memset", PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
+ Type::Int32Ty,
TD.getIntPtrType(), (Type *)0);
break;
- case Intrinsic::sqrt_f32:
- case Intrinsic::sqrt_f64:
- if(I->arg_begin()->getType() == Type::FloatTy)
+ case Intrinsic::sqrt:
+ switch((int)I->arg_begin()->getType()->getTypeID()) {
+ case Type::FloatTyID:
EnsureFunctionExists(M, "sqrtf", I->arg_begin(), I->arg_end(),
Type::FloatTy);
- else
+ case Type::DoubleTyID:
EnsureFunctionExists(M, "sqrt", I->arg_begin(), I->arg_end(),
Type::DoubleTy);
+ case Type::X86_FP80TyID:
+ case Type::FP128TyID:
+ case Type::PPC_FP128TyID:
+ EnsureFunctionExists(M, "sqrtl", I->arg_begin(), I->arg_end(),
+ I->arg_begin()->getType());
+ }
+ break;
+ case Intrinsic::sin:
+ switch((int)I->arg_begin()->getType()->getTypeID()) {
+ case Type::FloatTyID:
+ EnsureFunctionExists(M, "sinf", I->arg_begin(), I->arg_end(),
+ Type::FloatTy);
+ case Type::DoubleTyID:
+ EnsureFunctionExists(M, "sin", I->arg_begin(), I->arg_end(),
+ Type::DoubleTy);
+ case Type::X86_FP80TyID:
+ case Type::FP128TyID:
+ case Type::PPC_FP128TyID:
+ EnsureFunctionExists(M, "sinl", I->arg_begin(), I->arg_end(),
+ I->arg_begin()->getType());
+ }
+ break;
+ case Intrinsic::cos:
+ switch((int)I->arg_begin()->getType()->getTypeID()) {
+ case Type::FloatTyID:
+ EnsureFunctionExists(M, "cosf", I->arg_begin(), I->arg_end(),
+ Type::FloatTy);
+ case Type::DoubleTyID:
+ EnsureFunctionExists(M, "cos", I->arg_begin(), I->arg_end(),
+ Type::DoubleTy);
+ case Type::X86_FP80TyID:
+ case Type::FP128TyID:
+ case Type::PPC_FP128TyID:
+ EnsureFunctionExists(M, "cosl", I->arg_begin(), I->arg_end(),
+ I->arg_begin()->getType());
+ }
+ break;
+ case Intrinsic::pow:
+ switch((int)I->arg_begin()->getType()->getTypeID()) {
+ case Type::FloatTyID:
+ EnsureFunctionExists(M, "powf", I->arg_begin(), I->arg_end(),
+ Type::FloatTy);
+ case Type::DoubleTyID:
+ EnsureFunctionExists(M, "pow", I->arg_begin(), I->arg_end(),
+ Type::DoubleTy);
+ case Type::X86_FP80TyID:
+ case Type::FP128TyID:
+ case Type::PPC_FP128TyID:
+ EnsureFunctionExists(M, "powl", I->arg_begin(), I->arg_end(),
+ I->arg_begin()->getType());
+ }
break;
}
}
switch(BitSize) {
default: assert(0 && "Unhandled type size of value to byteswap!");
case 16: {
- Value *Tmp1 = BinaryOperator::createShl(V,
+ Value *Tmp1 = BinaryOperator::CreateShl(V,
ConstantInt::get(V->getType(),8),"bswap.2",IP);
- Value *Tmp2 = BinaryOperator::createLShr(V,
+ Value *Tmp2 = BinaryOperator::CreateLShr(V,
ConstantInt::get(V->getType(),8),"bswap.1",IP);
- V = BinaryOperator::createOr(Tmp1, Tmp2, "bswap.i16", IP);
+ V = BinaryOperator::CreateOr(Tmp1, Tmp2, "bswap.i16", IP);
break;
}
case 32: {
- Value *Tmp4 = BinaryOperator::createShl(V,
+ Value *Tmp4 = BinaryOperator::CreateShl(V,
ConstantInt::get(V->getType(),24),"bswap.4", IP);
- Value *Tmp3 = BinaryOperator::createShl(V,
+ Value *Tmp3 = BinaryOperator::CreateShl(V,
ConstantInt::get(V->getType(),8),"bswap.3",IP);
- Value *Tmp2 = BinaryOperator::createLShr(V,
+ Value *Tmp2 = BinaryOperator::CreateLShr(V,
ConstantInt::get(V->getType(),8),"bswap.2",IP);
- Value *Tmp1 = BinaryOperator::createLShr(V,
+ Value *Tmp1 = BinaryOperator::CreateLShr(V,
ConstantInt::get(V->getType(),24),"bswap.1", IP);
- Tmp3 = BinaryOperator::createAnd(Tmp3,
+ Tmp3 = BinaryOperator::CreateAnd(Tmp3,
ConstantInt::get(Type::Int32Ty, 0xFF0000),
"bswap.and3", IP);
- Tmp2 = BinaryOperator::createAnd(Tmp2,
+ Tmp2 = BinaryOperator::CreateAnd(Tmp2,
ConstantInt::get(Type::Int32Ty, 0xFF00),
"bswap.and2", IP);
- Tmp4 = BinaryOperator::createOr(Tmp4, Tmp3, "bswap.or1", IP);
- Tmp2 = BinaryOperator::createOr(Tmp2, Tmp1, "bswap.or2", IP);
- V = BinaryOperator::createOr(Tmp4, Tmp3, "bswap.i32", IP);
+ Tmp4 = BinaryOperator::CreateOr(Tmp4, Tmp3, "bswap.or1", IP);
+ Tmp2 = BinaryOperator::CreateOr(Tmp2, Tmp1, "bswap.or2", IP);
+ V = BinaryOperator::CreateOr(Tmp4, Tmp2, "bswap.i32", IP);
break;
}
case 64: {
- Value *Tmp8 = BinaryOperator::createShl(V,
+ Value *Tmp8 = BinaryOperator::CreateShl(V,
ConstantInt::get(V->getType(),56),"bswap.8", IP);
- Value *Tmp7 = BinaryOperator::createShl(V,
+ Value *Tmp7 = BinaryOperator::CreateShl(V,
ConstantInt::get(V->getType(),40),"bswap.7", IP);
- Value *Tmp6 = BinaryOperator::createShl(V,
+ Value *Tmp6 = BinaryOperator::CreateShl(V,
ConstantInt::get(V->getType(),24),"bswap.6", IP);
- Value *Tmp5 = BinaryOperator::createShl(V,
+ Value *Tmp5 = BinaryOperator::CreateShl(V,
ConstantInt::get(V->getType(),8),"bswap.5", IP);
- Value* Tmp4 = BinaryOperator::createLShr(V,
+ Value* Tmp4 = BinaryOperator::CreateLShr(V,
ConstantInt::get(V->getType(),8),"bswap.4", IP);
- Value* Tmp3 = BinaryOperator::createLShr(V,
+ Value* Tmp3 = BinaryOperator::CreateLShr(V,
ConstantInt::get(V->getType(),24),"bswap.3", IP);
- Value* Tmp2 = BinaryOperator::createLShr(V,
+ Value* Tmp2 = BinaryOperator::CreateLShr(V,
ConstantInt::get(V->getType(),40),"bswap.2", IP);
- Value* Tmp1 = BinaryOperator::createLShr(V,
+ Value* Tmp1 = BinaryOperator::CreateLShr(V,
ConstantInt::get(V->getType(),56),"bswap.1", IP);
- Tmp7 = BinaryOperator::createAnd(Tmp7,
+ Tmp7 = BinaryOperator::CreateAnd(Tmp7,
ConstantInt::get(Type::Int64Ty,
0xFF000000000000ULL),
"bswap.and7", IP);
- Tmp6 = BinaryOperator::createAnd(Tmp6,
+ Tmp6 = BinaryOperator::CreateAnd(Tmp6,
ConstantInt::get(Type::Int64Ty, 0xFF0000000000ULL),
"bswap.and6", IP);
- Tmp5 = BinaryOperator::createAnd(Tmp5,
+ Tmp5 = BinaryOperator::CreateAnd(Tmp5,
ConstantInt::get(Type::Int64Ty, 0xFF00000000ULL),
"bswap.and5", IP);
- Tmp4 = BinaryOperator::createAnd(Tmp4,
+ Tmp4 = BinaryOperator::CreateAnd(Tmp4,
ConstantInt::get(Type::Int64Ty, 0xFF000000ULL),
"bswap.and4", IP);
- Tmp3 = BinaryOperator::createAnd(Tmp3,
+ Tmp3 = BinaryOperator::CreateAnd(Tmp3,
ConstantInt::get(Type::Int64Ty, 0xFF0000ULL),
"bswap.and3", IP);
- Tmp2 = BinaryOperator::createAnd(Tmp2,
+ Tmp2 = BinaryOperator::CreateAnd(Tmp2,
ConstantInt::get(Type::Int64Ty, 0xFF00ULL),
"bswap.and2", IP);
- Tmp8 = BinaryOperator::createOr(Tmp8, Tmp7, "bswap.or1", IP);
- Tmp6 = BinaryOperator::createOr(Tmp6, Tmp5, "bswap.or2", IP);
- Tmp4 = BinaryOperator::createOr(Tmp4, Tmp3, "bswap.or3", IP);
- Tmp2 = BinaryOperator::createOr(Tmp2, Tmp1, "bswap.or4", IP);
- Tmp8 = BinaryOperator::createOr(Tmp8, Tmp6, "bswap.or5", IP);
- Tmp4 = BinaryOperator::createOr(Tmp4, Tmp2, "bswap.or6", IP);
- V = BinaryOperator::createOr(Tmp8, Tmp4, "bswap.i64", IP);
+ Tmp8 = BinaryOperator::CreateOr(Tmp8, Tmp7, "bswap.or1", IP);
+ Tmp6 = BinaryOperator::CreateOr(Tmp6, Tmp5, "bswap.or2", IP);
+ Tmp4 = BinaryOperator::CreateOr(Tmp4, Tmp3, "bswap.or3", IP);
+ Tmp2 = BinaryOperator::CreateOr(Tmp2, Tmp1, "bswap.or4", IP);
+ Tmp8 = BinaryOperator::CreateOr(Tmp8, Tmp6, "bswap.or5", IP);
+ Tmp4 = BinaryOperator::CreateOr(Tmp4, Tmp2, "bswap.or6", IP);
+ V = BinaryOperator::CreateOr(Tmp8, Tmp4, "bswap.i64", IP);
break;
}
}
};
unsigned BitSize = V->getType()->getPrimitiveSizeInBits();
-
- 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 = 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 WordSize = (BitSize + 63) / 64;
+ Value *Count = ConstantInt::get(V->getType(), 0);
+
+ for (unsigned n = 0; n < WordSize; ++n) {
+ Value *PartValue = V;
+ for (unsigned i = 1, ct = 0; i < (BitSize>64 ? 64 : BitSize);
+ i <<= 1, ++ct) {
+ Value *MaskCst = ConstantInt::get(V->getType(), MaskValues[ct]);
+ Value *LHS = BinaryOperator::CreateAnd(
+ PartValue, MaskCst, "cppop.and1", IP);
+ Value *VShift = BinaryOperator::CreateLShr(PartValue,
+ ConstantInt::get(V->getType(), i), "ctpop.sh", IP);
+ Value *RHS = BinaryOperator::CreateAnd(VShift, MaskCst, "cppop.and2", IP);
+ PartValue = BinaryOperator::CreateAdd(LHS, RHS, "ctpop.step", IP);
+ }
+ Count = BinaryOperator::CreateAdd(PartValue, Count, "ctpop.part", IP);
+ if (BitSize > 64) {
+ V = BinaryOperator::CreateLShr(V, ConstantInt::get(V->getType(), 64),
+ "ctpop.part.sh", IP);
+ BitSize -= 64;
+ }
}
- return CastInst::createIntegerCast(V, Type::Int32Ty, false, "ctpop", IP);
+ return Count;
}
/// LowerCTLZ - Emit the code to lower ctlz of V before the specified
static Value *LowerCTLZ(Value *V, Instruction *IP) {
unsigned BitSize = V->getType()->getPrimitiveSizeInBits();
- for (unsigned i = 1; i != BitSize; i <<= 1) {
+ for (unsigned i = 1; i < BitSize; i <<= 1) {
Value *ShVal = ConstantInt::get(V->getType(), i);
- ShVal = BinaryOperator::createLShr(V, ShVal, "ctlz.sh", IP);
- V = BinaryOperator::createOr(V, ShVal, "ctlz.step", IP);
+ ShVal = BinaryOperator::CreateLShr(V, ShVal, "ctlz.sh", IP);
+ V = BinaryOperator::CreateOr(V, ShVal, "ctlz.step", IP);
}
- V = BinaryOperator::createNot(V, "", IP);
+ V = BinaryOperator::CreateNot(V, "", IP);
return LowerCTPOP(V, IP);
}
Function::arg_iterator args = F->arg_begin();
Value* Val = args++; Val->setName("Val");
Value* Lo = args++; Lo->setName("Lo");
- Value* Hi = args++; Hi->setName("High");
+ Value* Hi = args++; Hi->setName("High");
// We want to select a range of bits here such that [Hi, Lo] is shifted
// down to the low bits. However, it is quite possible that Hi is smaller
// than Lo in which case the bits have to be reversed.
// Create the blocks we will need for the two cases (forward, reverse)
- BasicBlock* CurBB = new BasicBlock("entry", F);
- BasicBlock *RevSize = new BasicBlock("revsize", CurBB->getParent());
- BasicBlock *FwdSize = new BasicBlock("fwdsize", CurBB->getParent());
- BasicBlock *Compute = new BasicBlock("compute", CurBB->getParent());
- BasicBlock *Reverse = new BasicBlock("reverse", CurBB->getParent());
- BasicBlock *RsltBlk = new BasicBlock("result", CurBB->getParent());
+ BasicBlock* CurBB = BasicBlock::Create("entry", F);
+ BasicBlock *RevSize = BasicBlock::Create("revsize", CurBB->getParent());
+ BasicBlock *FwdSize = BasicBlock::Create("fwdsize", CurBB->getParent());
+ BasicBlock *Compute = BasicBlock::Create("compute", CurBB->getParent());
+ BasicBlock *Reverse = BasicBlock::Create("reverse", CurBB->getParent());
+ BasicBlock *RsltBlk = BasicBlock::Create("result", CurBB->getParent());
// Cast Hi and Lo to the size of Val so the widths are all the same
if (Hi->getType() != Val->getType())
- Hi = CastInst::createIntegerCast(Hi, Val->getType(), false,
+ Hi = CastInst::CreateIntegerCast(Hi, Val->getType(), false,
"tmp", CurBB);
if (Lo->getType() != Val->getType())
- Lo = CastInst::createIntegerCast(Lo, Val->getType(), false,
+ Lo = CastInst::CreateIntegerCast(Lo, Val->getType(), false,
"tmp", CurBB);
// Compute a few things that both cases will need, up front.
// Compare the Hi and Lo bit positions. This is used to determine
// which case we have (forward or reverse)
ICmpInst *Cmp = new ICmpInst(ICmpInst::ICMP_ULT, Hi, Lo, "less",CurBB);
- new BranchInst(RevSize, FwdSize, Cmp, CurBB);
+ BranchInst::Create(RevSize, FwdSize, Cmp, CurBB);
// First, copmute the number of bits in the forward case.
Instruction* FBitSize =
- BinaryOperator::createSub(Hi, Lo,"fbits", FwdSize);
- new BranchInst(Compute, FwdSize);
+ BinaryOperator::CreateSub(Hi, Lo,"fbits", FwdSize);
+ BranchInst::Create(Compute, FwdSize);
// Second, compute the number of bits in the reverse case.
Instruction* RBitSize =
- BinaryOperator::createSub(Lo, Hi, "rbits", RevSize);
- new BranchInst(Compute, RevSize);
+ BinaryOperator::CreateSub(Lo, Hi, "rbits", RevSize);
+ BranchInst::Create(Compute, RevSize);
// Now, compute the bit range. Start by getting the bitsize and the shift
// amount (either Hi or Lo) from PHI nodes. Then we compute a mask for
// reversed.
// Get the BitSize from one of the two subtractions
- PHINode *BitSize = new PHINode(Val->getType(), "bits", Compute);
+ PHINode *BitSize = PHINode::Create(Val->getType(), "bits", Compute);
BitSize->reserveOperandSpace(2);
BitSize->addIncoming(FBitSize, FwdSize);
BitSize->addIncoming(RBitSize, RevSize);
// Get the ShiftAmount as the smaller of Hi/Lo
- PHINode *ShiftAmt = new PHINode(Val->getType(), "shiftamt", Compute);
+ PHINode *ShiftAmt = PHINode::Create(Val->getType(), "shiftamt", Compute);
ShiftAmt->reserveOperandSpace(2);
ShiftAmt->addIncoming(Lo, FwdSize);
ShiftAmt->addIncoming(Hi, RevSize);
// Increment the bit size
Instruction *BitSizePlusOne =
- BinaryOperator::createAdd(BitSize, One, "bits", Compute);
+ BinaryOperator::CreateAdd(BitSize, One, "bits", Compute);
// Create a Mask to zero out the high order bits.
Instruction* Mask =
- BinaryOperator::createShl(AllOnes, BitSizePlusOne, "mask", Compute);
- Mask = BinaryOperator::createNot(Mask, "mask", Compute);
+ BinaryOperator::CreateShl(AllOnes, BitSizePlusOne, "mask", Compute);
+ Mask = BinaryOperator::CreateNot(Mask, "mask", Compute);
// Shift the bits down and apply the mask
Instruction* FRes =
- BinaryOperator::createLShr(Val, ShiftAmt, "fres", Compute);
- FRes = BinaryOperator::createAnd(FRes, Mask, "fres", Compute);
- new BranchInst(Reverse, RsltBlk, Cmp, Compute);
+ BinaryOperator::CreateLShr(Val, ShiftAmt, "fres", Compute);
+ FRes = BinaryOperator::CreateAnd(FRes, Mask, "fres", Compute);
+ BranchInst::Create(Reverse, RsltBlk, Cmp, Compute);
// In the Reverse block we have the mask already in FRes but we must reverse
// it by shifting FRes bits right and putting them in RRes by shifting them
// in from left.
// First set up our loop counters
- PHINode *Count = new PHINode(Val->getType(), "count", Reverse);
+ PHINode *Count = PHINode::Create(Val->getType(), "count", Reverse);
Count->reserveOperandSpace(2);
Count->addIncoming(BitSizePlusOne, Compute);
// Next, get the value that we are shifting.
- PHINode *BitsToShift = new PHINode(Val->getType(), "val", Reverse);
+ PHINode *BitsToShift = PHINode::Create(Val->getType(), "val", Reverse);
BitsToShift->reserveOperandSpace(2);
BitsToShift->addIncoming(FRes, Compute);
// Finally, get the result of the last computation
- PHINode *RRes = new PHINode(Val->getType(), "rres", Reverse);
+ PHINode *RRes = PHINode::Create(Val->getType(), "rres", Reverse);
RRes->reserveOperandSpace(2);
RRes->addIncoming(Zero, Compute);
// Decrement the counter
- Instruction *Decr = BinaryOperator::createSub(Count, One, "decr", Reverse);
+ Instruction *Decr = BinaryOperator::CreateSub(Count, One, "decr", Reverse);
Count->addIncoming(Decr, Reverse);
// Compute the Bit that we want to move
Instruction *Bit =
- BinaryOperator::createAnd(BitsToShift, One, "bit", Reverse);
+ BinaryOperator::CreateAnd(BitsToShift, One, "bit", Reverse);
// Compute the new value for next iteration.
Instruction *NewVal =
- BinaryOperator::createLShr(BitsToShift, One, "rshift", Reverse);
+ BinaryOperator::CreateLShr(BitsToShift, One, "rshift", Reverse);
BitsToShift->addIncoming(NewVal, Reverse);
// Shift the bit into the low bits of the result.
Instruction *NewRes =
- BinaryOperator::createShl(RRes, One, "lshift", Reverse);
- NewRes = BinaryOperator::createOr(NewRes, Bit, "addbit", Reverse);
+ BinaryOperator::CreateShl(RRes, One, "lshift", Reverse);
+ NewRes = BinaryOperator::CreateOr(NewRes, Bit, "addbit", Reverse);
RRes->addIncoming(NewRes, Reverse);
// Terminate loop if we've moved all the bits.
ICmpInst *Cond =
new ICmpInst(ICmpInst::ICMP_EQ, Decr, Zero, "cond", Reverse);
- new BranchInst(RsltBlk, Reverse, Cond, Reverse);
+ BranchInst::Create(RsltBlk, Reverse, Cond, Reverse);
// Finally, in the result block, select one of the two results with a PHI
// node and return the result;
CurBB = RsltBlk;
- PHINode *BitSelect = new PHINode(Val->getType(), "part_select", CurBB);
+ PHINode *BitSelect = PHINode::Create(Val->getType(), "part_select", CurBB);
BitSelect->reserveOperandSpace(2);
BitSelect->addIncoming(FRes, Compute);
BitSelect->addIncoming(NewRes, Reverse);
- new ReturnInst(BitSelect, CurBB);
+ ReturnInst::Create(BitSelect, CurBB);
}
// Return a call to the implementation function
CI->getOperand(2),
CI->getOperand(3)
};
- return new CallInst(F, Args, sizeof(Args)/sizeof(Args[0]), CI->getName(), CI);
+ return CallInst::Create(F, Args, array_endof(Args), CI->getName(), CI);
}
/// Convert the llvm.part.set.iX.iY.iZ intrinsic. This intrinsic takes
// If we haven't defined the impl function yet, do so now
if (F->isDeclaration()) {
- // Note: the following code is based on code generated by llvm2cpp with
- // the following input. This is just *one* example of a generated function.
- // The functions vary by bit width of result and first two arguments.
- // The generated code has been changed to deal with any bit width not just
- // the 32/64 bitwidths used in the above sample.
- //
- // define i64 @part_set(i64 %Val, i32 %Rep, i32 %Lo, i32 %Hi) {
- // entry:
- // %is_forward = icmp ult i32 %Lo, %Hi
- // %Lo.pn = select i1 %is_forward, i32 %Hi, i32 %Lo
- // %Hi.pn = select i1 %is_forward, i32 %Lo, i32 %Hi
- // %iftmp.16.0 = sub i32 %Lo.pn, %Hi.pn
- // icmp ult i32 %iftmp.16.0, 32
- // br i1 %1, label %cond_true11, label %cond_next19
- // cond_true11:
- // %tmp13 = sub i32 32, %iftmp.16.0
- // %tmp14 = lshr i32 -1, %tmp13
- // %tmp16 = and i32 %tmp14, %Rep
- // br label %cond_next19
- // cond_next19:
- // %iftmp.17.0 = phi i32 [ %tmp16, %cond_true11 ], [ %Rep, %entry ]
- // %tmp2021 = zext i32 %iftmp.17.0 to i64
- // icmp ugt i32 %Lo, %Hi
- // br i1 %2, label %cond_next60, label %cond_true24
- // cond_true24:
- // %tmp25.cast = zext i32 %Hi to i64
- // %tmp26 = lshr i64 -1, %tmp25.cast
- // %tmp27.cast = zext i32 %Lo to i64
- // %tmp28 = shl i64 %tmp26, %tmp27.cast
- // %tmp28not = xor i64 %tmp28, -1
- // %tmp31 = shl i64 %tmp2021, %tmp27.cast
- // %tmp34 = and i64 %tmp28not, %Val
- // %Val_addr.064 = or i64 %tmp31, %tmp34
- // ret i64 %Val_addr.064
- // cond_next60:
- // %tmp39.cast = zext i32 %Lo to i64
- // %tmp40 = shl i64 -1, %tmp39.cast
- // %tmp41.cast = zext i32 %Hi to i64
- // %tmp42 = shl i64 -1, %tmp41.cast
- // %tmp45.demorgan = or i64 %tmp42, %tmp40
- // %tmp45 = xor i64 %tmp45.demorgan, -1
- // %tmp47 = and i64 %tmp45, %Val
- // %tmp50 = shl i64 %tmp2021, %tmp39.cast
- // %tmp52 = sub i32 32, %Hi
- // %tmp52.cast = zext i32 %tmp52 to i64
- // %tmp54 = lshr i64 %tmp2021, %tmp52.cast
- // %tmp57 = or i64 %tmp50, %tmp47
- // %Val_addr.0 = or i64 %tmp57, %tmp54
- // ret i64 %Val_addr.0
- // }
-
// Get the arguments for the function.
Function::arg_iterator args = F->arg_begin();
Value* Val = args++; Val->setName("Val");
ConstantInt* RepBitWidth = ConstantInt::get(Type::Int32Ty, RepBits);
ConstantInt* RepMask = ConstantInt::getAllOnesValue(RepTy);
ConstantInt* ValMask = ConstantInt::getAllOnesValue(ValTy);
-
- BasicBlock* entry = new BasicBlock("entry",F,0);
- BasicBlock* large = new BasicBlock("large",F,0);
- BasicBlock* small = new BasicBlock("small",F,0);
- BasicBlock* forward = new BasicBlock("forward",F,0);
- BasicBlock* reverse = new BasicBlock("reverse",F,0);
-
- // Block entry (entry)
+ ConstantInt* One = ConstantInt::get(Type::Int32Ty, 1);
+ ConstantInt* ValOne = ConstantInt::get(ValTy, 1);
+ ConstantInt* Zero = ConstantInt::get(Type::Int32Ty, 0);
+ ConstantInt* ValZero = ConstantInt::get(ValTy, 0);
+
+ // Basic blocks we fill in below.
+ BasicBlock* entry = BasicBlock::Create("entry", F, 0);
+ BasicBlock* large = BasicBlock::Create("large", F, 0);
+ BasicBlock* small = BasicBlock::Create("small", F, 0);
+ BasicBlock* reverse = BasicBlock::Create("reverse", F, 0);
+ BasicBlock* result = BasicBlock::Create("result", F, 0);
+
+ // BASIC BLOCK: entry
// First, get the number of bits that we're placing as an i32
ICmpInst* is_forward =
new ICmpInst(ICmpInst::ICMP_ULT, Lo, Hi, "", entry);
- SelectInst* Lo_pn = new SelectInst(is_forward, Hi, Lo, "", entry);
- SelectInst* Hi_pn = new SelectInst(is_forward, Lo, Hi, "", entry);
- BinaryOperator* NumBits = BinaryOperator::createSub(Lo_pn, Hi_pn, "",entry);
+ SelectInst* Hi_pn = SelectInst::Create(is_forward, Hi, Lo, "", entry);
+ SelectInst* Lo_pn = SelectInst::Create(is_forward, Lo, Hi, "", entry);
+ BinaryOperator* NumBits = BinaryOperator::CreateSub(Hi_pn, Lo_pn, "",entry);
+ NumBits = BinaryOperator::CreateAdd(NumBits, One, "", entry);
// Now, convert Lo and Hi to ValTy bit width
if (ValBits > 32) {
- Hi = new ZExtInst(Hi, ValTy, "", entry);
- Lo = new ZExtInst(Lo, ValTy, "", entry);
+ Lo = new ZExtInst(Lo_pn, ValTy, "", entry);
} else if (ValBits < 32) {
- Hi = new TruncInst(Hi, ValTy, "", entry);
- Lo = new TruncInst(Lo, ValTy, "", entry);
+ Lo = new TruncInst(Lo_pn, ValTy, "", entry);
}
// Determine if the replacement bits are larger than the number of bits we
// are replacing and deal with it.
ICmpInst* is_large =
new ICmpInst(ICmpInst::ICMP_ULT, NumBits, RepBitWidth, "", entry);
- new BranchInst(large, small, is_large, entry);
+ BranchInst::Create(large, small, is_large, entry);
- // Block "large"
+ // BASIC BLOCK: large
Instruction* MaskBits =
- BinaryOperator::createSub(RepBitWidth, NumBits, "", large);
- MaskBits = CastInst::createIntegerCast(MaskBits, RepMask->getType(),
+ BinaryOperator::CreateSub(RepBitWidth, NumBits, "", large);
+ MaskBits = CastInst::CreateIntegerCast(MaskBits, RepMask->getType(),
false, "", large);
BinaryOperator* Mask1 =
- BinaryOperator::createLShr(RepMask, MaskBits, "", large);
- BinaryOperator* Rep2 = BinaryOperator::createAnd(Mask1, Rep, "", large);
- new BranchInst(small, large);
+ BinaryOperator::CreateLShr(RepMask, MaskBits, "", large);
+ BinaryOperator* Rep2 = BinaryOperator::CreateAnd(Mask1, Rep, "", large);
+ BranchInst::Create(small, large);
- // Block "small"
- PHINode* Rep3 = new PHINode(RepTy, "", small);
+ // BASIC BLOCK: small
+ PHINode* Rep3 = PHINode::Create(RepTy, "", small);
Rep3->reserveOperandSpace(2);
Rep3->addIncoming(Rep2, large);
Rep3->addIncoming(Rep, entry);
Rep4 = new ZExtInst(Rep3, ValTy, "", small);
else if (ValBits < RepBits)
Rep4 = new TruncInst(Rep3, ValTy, "", small);
- ICmpInst* is_reverse =
- new ICmpInst(ICmpInst::ICMP_UGT, Lo, Hi, "", small);
- new BranchInst(reverse, forward, is_reverse, small);
-
- // Block "forward"
- Value* t1 = BinaryOperator::createLShr(ValMask, Hi, "", forward);
- Value* t2 = BinaryOperator::createShl(t1, Lo, "", forward);
- Value* nott2 = BinaryOperator::createXor(t2, ValMask, "", forward);
- Value* t3 = BinaryOperator::createShl(Rep4, Lo, "", forward);
- Value* t4 = BinaryOperator::createAnd(nott2, Val, "", forward);
- Value* FRslt = BinaryOperator::createOr(t3, t4, "", forward);
- new ReturnInst(FRslt, forward);
-
- // Block "reverse"
- Value* t5 = BinaryOperator::createShl(ValMask, Lo, "", reverse);
- Value* t6 = BinaryOperator::createShl(ValMask, Hi, "", reverse);
- Value* t7 = BinaryOperator::createOr(t6, t5, "", reverse);
- Value* t8 = BinaryOperator::createXor(t7, ValMask, "", reverse);
- Value* t9 = BinaryOperator::createAnd(t8, Val, "", reverse);
- Value* t10 = BinaryOperator::createShl(Rep4, Lo, "", reverse);
- if (32 < ValBits)
- RepBitWidth =
- cast<ConstantInt>(ConstantExpr::getZExt(RepBitWidth, ValTy));
- else if (32 > ValBits)
- RepBitWidth =
- cast<ConstantInt>(ConstantExpr::getTrunc(RepBitWidth, ValTy));
- Value* t11 = BinaryOperator::createSub(RepBitWidth, Hi, "", reverse);
- Value* t13 = BinaryOperator::createLShr(Rep4, t11, "",reverse);
- Value* t14 = BinaryOperator::createOr(t10, t9, "", reverse);
- Value* RRslt = BinaryOperator::createOr(t14, t13, "", reverse);
- new ReturnInst(RRslt, reverse);
+ BranchInst::Create(result, reverse, is_forward, small);
+
+ // BASIC BLOCK: reverse (reverses the bits of the replacement)
+ // Set up our loop counter as a PHI so we can decrement on each iteration.
+ // We will loop for the number of bits in the replacement value.
+ PHINode *Count = PHINode::Create(Type::Int32Ty, "count", reverse);
+ Count->reserveOperandSpace(2);
+ Count->addIncoming(NumBits, small);
+
+ // Get the value that we are shifting bits out of as a PHI because
+ // we'll change this with each iteration.
+ PHINode *BitsToShift = PHINode::Create(Val->getType(), "val", reverse);
+ BitsToShift->reserveOperandSpace(2);
+ BitsToShift->addIncoming(Rep4, small);
+
+ // Get the result of the last computation or zero on first iteration
+ PHINode *RRes = PHINode::Create(Val->getType(), "rres", reverse);
+ RRes->reserveOperandSpace(2);
+ RRes->addIncoming(ValZero, small);
+
+ // Decrement the loop counter by one
+ Instruction *Decr = BinaryOperator::CreateSub(Count, One, "", reverse);
+ Count->addIncoming(Decr, reverse);
+
+ // Get the bit that we want to move into the result
+ Value *Bit = BinaryOperator::CreateAnd(BitsToShift, ValOne, "", reverse);
+
+ // Compute the new value of the bits to shift for the next iteration.
+ Value *NewVal = BinaryOperator::CreateLShr(BitsToShift, ValOne,"", reverse);
+ BitsToShift->addIncoming(NewVal, reverse);
+
+ // Shift the bit we extracted into the low bit of the result.
+ Instruction *NewRes = BinaryOperator::CreateShl(RRes, ValOne, "", reverse);
+ NewRes = BinaryOperator::CreateOr(NewRes, Bit, "", reverse);
+ RRes->addIncoming(NewRes, reverse);
+
+ // Terminate loop if we've moved all the bits.
+ ICmpInst *Cond = new ICmpInst(ICmpInst::ICMP_EQ, Decr, Zero, "", reverse);
+ BranchInst::Create(result, reverse, Cond, reverse);
+
+ // BASIC BLOCK: result
+ PHINode *Rplcmnt = PHINode::Create(Val->getType(), "", result);
+ Rplcmnt->reserveOperandSpace(2);
+ Rplcmnt->addIncoming(NewRes, reverse);
+ Rplcmnt->addIncoming(Rep4, small);
+ Value* t0 = CastInst::CreateIntegerCast(NumBits,ValTy,false,"",result);
+ Value* t1 = BinaryOperator::CreateShl(ValMask, Lo, "", result);
+ Value* t2 = BinaryOperator::CreateNot(t1, "", result);
+ Value* t3 = BinaryOperator::CreateShl(t1, t0, "", result);
+ Value* t4 = BinaryOperator::CreateOr(t2, t3, "", result);
+ Value* t5 = BinaryOperator::CreateAnd(t4, Val, "", result);
+ Value* t6 = BinaryOperator::CreateShl(Rplcmnt, Lo, "", result);
+ Value* Rslt = BinaryOperator::CreateOr(t5, t6, "part_set", result);
+ ReturnInst::Create(Rslt, result);
}
// Return a call to the implementation function
CI->getOperand(3),
CI->getOperand(4)
};
- return new CallInst(F, Args, sizeof(Args)/sizeof(Args[0]), CI->getName(), CI);
+ return CallInst::Create(F, Args, array_endof(Args), CI->getName(), CI);
}
case Intrinsic::cttz: {
// cttz(x) -> ctpop(~X & (X-1))
Value *Src = CI->getOperand(1);
- Value *NotSrc = BinaryOperator::createNot(Src, Src->getName()+".not", CI);
- Value *SrcM1 = ConstantInt::get(Src->getType(), 1);
- SrcM1 = BinaryOperator::createSub(Src, SrcM1, "", CI);
- Src = LowerCTPOP(BinaryOperator::createAnd(NotSrc, SrcM1, "", CI), CI);
+ Value *NotSrc = BinaryOperator::CreateNot(Src, Src->getName()+".not", CI);
+ Value *SrcM1 = ConstantInt::get(Src->getType(), 1);
+ SrcM1 = BinaryOperator::CreateSub(Src, SrcM1, "", CI);
+ Src = LowerCTPOP(BinaryOperator::CreateAnd(NotSrc, SrcM1, "", CI), CI);
CI->replaceAllUsesWith(Src);
break;
}
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::eh_selector_i32:
+ case Intrinsic::eh_selector_i64:
+ CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
+ break;
+ case Intrinsic::eh_typeid_for_i32:
+ case Intrinsic::eh_typeid_for_i64:
+ // Return something different to eh_selector.
+ CI->replaceAllUsesWith(ConstantInt::get(CI->getType(), 1));
+ break;
+
+ case Intrinsic::var_annotation:
+ break; // Strip out annotate intrinsic
+
case Intrinsic::memcpy_i32:
case Intrinsic::memcpy_i64: {
static Constant *MemcpyFCache = 0;
MemsetFCache);
break;
}
- case Intrinsic::sqrt_f32: {
+ case Intrinsic::sqrt: {
static Constant *sqrtfFCache = 0;
- ReplaceCallWith("sqrtf", CI, CI->op_begin()+1, CI->op_end(),
- Type::FloatTy, sqrtfFCache);
- break;
- }
- case Intrinsic::sqrt_f64: {
static Constant *sqrtFCache = 0;
- ReplaceCallWith("sqrt", CI, CI->op_begin()+1, CI->op_end(),
+ static Constant *sqrtLDCache = 0;
+ switch (CI->getOperand(1)->getType()->getTypeID()) {
+ default: assert(0 && "Invalid type in sqrt"); abort();
+ case Type::FloatTyID:
+ ReplaceCallWith("sqrtf", CI, CI->op_begin()+1, CI->op_end(),
+ Type::FloatTy, sqrtfFCache);
+ break;
+ case Type::DoubleTyID:
+ ReplaceCallWith("sqrt", CI, CI->op_begin()+1, CI->op_end(),
Type::DoubleTy, sqrtFCache);
+ break;
+ case Type::X86_FP80TyID:
+ case Type::FP128TyID:
+ case Type::PPC_FP128TyID:
+ ReplaceCallWith("sqrtl", CI, CI->op_begin()+1, CI->op_end(),
+ CI->getOperand(1)->getType(), sqrtLDCache);
+ break;
+ }
break;
}
+ case Intrinsic::flt_rounds:
+ // Lower to "round to the nearest"
+ if (CI->getType() != Type::VoidTy)
+ CI->replaceAllUsesWith(ConstantInt::get(CI->getType(), 1));
+ break;
}
assert(CI->use_empty() &&
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