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96ad2265e72be400892eb62e654186b75e911dbb
ispc/llvmutil.cpp
Matt Pharr 5a53a43ed0 Finish support for 64-bit types in stdlib. Fixes issue #14. 
Add much more suppport for doubles and in64 types in the standard library, basically supporting everything for them that are supported for floats and int32s.  (The notable exceptions being the approximate rcp() and rsqrt() functions, which don't really have sensible analogs for doubles (or at least not built-in instructions).)
2011-07-07 13:25:55 +01:00

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/*
Copyright (c) 2010-2011, Intel Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @file llvmutil.cpp
@brief Implementations of various LLVM utility types and classes.
*/
#include "llvmutil.h"
#include "type.h"
const llvm::Type *LLVMTypes::VoidType = NULL;
const llvm::PointerType *LLVMTypes::VoidPointerType = NULL;
const llvm::Type *LLVMTypes::BoolType = NULL;
const llvm::Type *LLVMTypes::Int8Type = NULL;
const llvm::Type *LLVMTypes::Int16Type = NULL;
const llvm::Type *LLVMTypes::Int32Type = NULL;
const llvm::Type *LLVMTypes::Int32PointerType = NULL;
const llvm::Type *LLVMTypes::Int64Type = NULL;
const llvm::Type *LLVMTypes::Int64PointerType = NULL;
const llvm::Type *LLVMTypes::FloatType = NULL;
const llvm::Type *LLVMTypes::FloatPointerType = NULL;
const llvm::Type *LLVMTypes::DoubleType = NULL;
const llvm::Type *LLVMTypes::DoublePointerType = NULL;
const llvm::VectorType *LLVMTypes::MaskType = NULL;
const llvm::VectorType *LLVMTypes::BoolVectorType = NULL;
const llvm::VectorType *LLVMTypes::Int1VectorType = NULL;
const llvm::VectorType *LLVMTypes::Int32VectorType = NULL;
const llvm::Type *LLVMTypes::Int32VectorPointerType = NULL;
const llvm::VectorType *LLVMTypes::Int64VectorType = NULL;
const llvm::Type *LLVMTypes::Int64VectorPointerType = NULL;
const llvm::VectorType *LLVMTypes::FloatVectorType = NULL;
const llvm::Type *LLVMTypes::FloatVectorPointerType = NULL;
const llvm::VectorType *LLVMTypes::DoubleVectorType = NULL;
const llvm::Type *LLVMTypes::DoubleVectorPointerType = NULL;
const llvm::ArrayType *LLVMTypes::VoidPointerVectorType = NULL;
llvm::Constant *LLVMTrue = NULL;
llvm::Constant *LLVMFalse = NULL;
llvm::Constant *LLVMMaskAllOn = NULL;
llvm::Constant *LLVMMaskAllOff = NULL;
void
InitLLVMUtil(llvm::LLVMContext *ctx, Target target) {
LLVMTypes::VoidType = llvm::Type::getVoidTy(*ctx);
LLVMTypes::VoidPointerType = llvm::PointerType::get(llvm::Type::getInt8Ty(*ctx), 0);
LLVMTypes::BoolType = llvm::Type::getInt1Ty(*ctx);
LLVMTypes::Int8Type = llvm::Type::getInt8Ty(*ctx);
LLVMTypes::Int16Type = llvm::Type::getInt16Ty(*ctx);
LLVMTypes::Int32Type = llvm::Type::getInt32Ty(*ctx);
LLVMTypes::Int32PointerType = llvm::PointerType::get(LLVMTypes::Int32Type, 0);
LLVMTypes::Int64Type = llvm::Type::getInt64Ty(*ctx);
LLVMTypes::Int64PointerType = llvm::PointerType::get(LLVMTypes::Int64Type, 0);
LLVMTypes::FloatType = llvm::Type::getFloatTy(*ctx);
LLVMTypes::FloatPointerType = llvm::PointerType::get(LLVMTypes::FloatType, 0);
LLVMTypes::DoubleType = llvm::Type::getDoubleTy(*ctx);
LLVMTypes::DoublePointerType = llvm::PointerType::get(LLVMTypes::DoubleType, 0);
// Note that both the mask and bool vectors are vector of int32s
// (not i1s). LLVM ends up generating much better SSE code with
// this representation.
LLVMTypes::MaskType = LLVMTypes::BoolVectorType =
llvm::VectorType::get(llvm::Type::getInt32Ty(*ctx), target.vectorWidth);
LLVMTypes::Int1VectorType =
llvm::VectorType::get(llvm::Type::getInt1Ty(*ctx), target.vectorWidth);
LLVMTypes::Int32VectorType =
llvm::VectorType::get(LLVMTypes::Int32Type, target.vectorWidth);
LLVMTypes::Int32VectorPointerType = llvm::PointerType::get(LLVMTypes::Int32VectorType, 0);
LLVMTypes::Int64VectorType =
llvm::VectorType::get(LLVMTypes::Int64Type, target.vectorWidth);
LLVMTypes::Int64VectorPointerType = llvm::PointerType::get(LLVMTypes::Int64VectorType, 0);
LLVMTypes::FloatVectorType =
llvm::VectorType::get(LLVMTypes::FloatType, target.vectorWidth);
LLVMTypes::FloatVectorPointerType = llvm::PointerType::get(LLVMTypes::FloatVectorType, 0);
LLVMTypes::DoubleVectorType =
llvm::VectorType::get(LLVMTypes::DoubleType, target.vectorWidth);
LLVMTypes::DoubleVectorPointerType = llvm::PointerType::get(LLVMTypes::DoubleVectorType, 0);
LLVMTypes::VoidPointerVectorType =
llvm::ArrayType::get(LLVMTypes::VoidPointerType, target.vectorWidth);
LLVMTrue = llvm::ConstantInt::getTrue(*ctx);
LLVMFalse = llvm::ConstantInt::getFalse(*ctx);
std::vector<llvm::Constant *> maskOnes;
llvm::Constant *onMask = NULL;
onMask = llvm::ConstantInt::get(llvm::Type::getInt32Ty(*ctx), -1,
true /*signed*/); // 0xffffffff
for (int i = 0; i < target.vectorWidth; ++i)
maskOnes.push_back(onMask);
LLVMMaskAllOn = llvm::ConstantVector::get(maskOnes);
std::vector<llvm::Constant *> maskZeros;
llvm::Constant *offMask = NULL;
offMask = llvm::ConstantInt::get(llvm::Type::getInt32Ty(*ctx), 0,
true /*signed*/);
for (int i = 0; i < target.vectorWidth; ++i)
maskZeros.push_back(offMask);
LLVMMaskAllOff = llvm::ConstantVector::get(maskZeros);
}
llvm::ConstantInt *LLVMInt32(int32_t ival) {
return llvm::ConstantInt::get(llvm::Type::getInt32Ty(*g->ctx), ival,
true /*signed*/);
}
llvm::ConstantInt *
LLVMUInt32(uint32_t ival) {
return llvm::ConstantInt::get(llvm::Type::getInt32Ty(*g->ctx), ival,
false /*unsigned*/);
}
llvm::ConstantInt *
LLVMInt64(int64_t ival) {
return llvm::ConstantInt::get(llvm::Type::getInt64Ty(*g->ctx), ival,
true /*signed*/);
}
llvm::ConstantInt *
LLVMUInt64(uint64_t ival) {
return llvm::ConstantInt::get(llvm::Type::getInt64Ty(*g->ctx), ival,
false /*unsigned*/);
}
llvm::Constant *
LLVMFloat(float fval) {
return llvm::ConstantFP::get(llvm::Type::getFloatTy(*g->ctx), fval);
}
llvm::Constant *
LLVMDouble(double dval) {
return llvm::ConstantFP::get(llvm::Type::getDoubleTy(*g->ctx), dval);
}
llvm::Constant *
LLVMInt32Vector(int32_t ival) {
llvm::Constant *v = LLVMInt32(ival);
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(v);
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMInt32Vector(const int32_t *ivec) {
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(LLVMInt32(ivec[i]));
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMUInt32Vector(uint32_t ival) {
llvm::Constant *v = LLVMUInt32(ival);
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(v);
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMUInt32Vector(const uint32_t *ivec) {
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(LLVMUInt32(ivec[i]));
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMFloatVector(float fval) {
llvm::Constant *v = LLVMFloat(fval);
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(v);
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMFloatVector(const float *fvec) {
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(LLVMFloat(fvec[i]));
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMDoubleVector(double dval) {
llvm::Constant *v = LLVMDouble(dval);
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(v);
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMDoubleVector(const double *dvec) {
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(LLVMDouble(dvec[i]));
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMInt64Vector(int64_t ival) {
llvm::Constant *v = LLVMInt64(ival);
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(v);
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMInt64Vector(const int64_t *ivec) {
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(LLVMInt64(ivec[i]));
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMUInt64Vector(uint64_t ival) {
llvm::Constant *v = LLVMUInt64(ival);
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(v);
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMUInt64Vector(const uint64_t *ivec) {
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(LLVMUInt64(ivec[i]));
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMBoolVector(bool b) {
llvm::Constant *v;
if (LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
v = llvm::ConstantInt::get(LLVMTypes::Int32Type, b ? 0xffffffff : 0,
false /*unsigned*/);
else {
assert(LLVMTypes::BoolVectorType->getElementType() ==
llvm::Type::getInt1Ty(*g->ctx));
v = b ? LLVMTrue : LLVMFalse;
}
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i)
vals.push_back(v);
return llvm::ConstantVector::get(vals);
}
llvm::Constant *
LLVMBoolVector(const bool *bvec) {
std::vector<llvm::Constant *> vals;
for (int i = 0; i < g->target.vectorWidth; ++i) {
llvm::Constant *v;
if (LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
v = llvm::ConstantInt::get(LLVMTypes::Int32Type, bvec[i] ? 0xffffffff : 0,
false /*unsigned*/);
else {
assert(LLVMTypes::BoolVectorType->getElementType() ==
llvm::Type::getInt1Ty(*g->ctx));
v = bvec[i] ? LLVMTrue : LLVMFalse;
}
vals.push_back(v);
}
return llvm::ConstantVector::get(vals);
}
const llvm::ArrayType *
LLVMPointerVectorType(const llvm::Type *t) {
// NOTE: ArrayType, not VectorType
return llvm::ArrayType::get(llvm::PointerType::get(t, 0),
g->target.vectorWidth);
}
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