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wnt_ASTNode.cpp
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wnt_ASTNode.cpp
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/*=====================================================================
ASTNode.cpp
-----------
Copyright Glare Technologies Limited 2019 -
File created by ClassTemplate on Wed Jun 11 03:55:25 2008
=====================================================================*/
#include "wnt_ASTNode.h"
#include "wnt_FunctionExpression.h"
#include "wnt_SourceBuffer.h"
#include "wnt_Diagnostics.h"
#include "wnt_RefCounting.h"
#include "wnt_ArrayLiteral.h"
#include "wnt_VectorLiteral.h"
#include "wnt_TupleLiteral.h"
#include "wnt_VArrayLiteral.h"
#include "wnt_Variable.h"
#include "wnt_LetASTNode.h"
#include "wnt_LetBlock.h"
#include "VMState.h"
#include "VirtualMachine.h"
#include "CompiledValue.h"
#include "Value.h"
#include "VMState.h"
#include "Linker.h"
#include "BuiltInFunctionImpl.h"
#include "LLVMUtils.h"
#include "LLVMTypeUtils.h"
#include "ProofUtils.h"
#include "utils/StringUtils.h"
#include "utils/ConPrint.h"
#include "maths/mathstypes.h"
#include "maths/vec2.h"
#if defined(_M_X64) || defined(__x86_64__)
#include <xmmintrin.h> // SSE header file
#else // Else if not x64, assume ARM64.
#include "libs/sse2neon.h" // Use SSE2Neon to convert SSE intrinsics to Neon intrinsics. TODO: write the used intrinsics by hand below.
#endif
#ifdef _MSC_VER // If compiling with Visual C++
#pragma warning(push, 0) // Disable warnings
#endif
#include "llvm/IR/Type.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Instructions.h"
#include "llvm/ExecutionEngine/Interpreter.h"
#include "llvm/ExecutionEngine/GenericValue.h"
#include "llvm/Support/raw_ostream.h"
#include <llvm/IR/CallingConv.h>
#include <llvm/IR/IRBuilder.h>
#include <llvm/IR/Intrinsics.h>
#ifdef _MSC_VER
#pragma warning(pop) // Re-enable warnings
#endif
using std::vector;
using std::string;
namespace Winter
{
void printMargin(int depth, std::ostream& s)
{
for(int i=0; i<depth; ++i)
s << " ";
}
bool isIntExactlyRepresentableAsFloat(int64 x)
{
//return ((int64)((float)x)) == x;
// Make the floating point value pass through an SSE register so it gets rounded to 32-bits.
// Otherwise it may just get stored in a higher-precision float register.
const float y = (float)x;
float y2;
_mm_store_ss(&y2, _mm_load_ss(&y));
return (int64)y2 == x;
}
bool isIntExactlyRepresentableAsDouble(int64 x)
{
//return ((int64)((float)x)) == x;
// Make the floating point value pass through an SSE register so it gets rounded to 64-bits.
// Otherwise it may just get stored in a higher-precision float register.
const double y = (double)x;
double y2;
_mm_store_sd(&y2, _mm_load_sd(&y));
return (int64)y2 == x;
}
bool expressionIsWellTyped(ASTNode& e, TraversalPayload& payload_)
{
// NOTE: do this without exceptions?
try
{
vector<ASTNode*> stack;
TraversalPayload payload(TraversalPayload::TypeCheck);
e.traverse(payload, stack);
assert(stack.size() == 0);
return true;
}
catch(BaseException& )
{
return false;
}
}
/*static bool isLiteral(const ASTNode& e)
{
return e.nodeType() == ASTNode::FloatLiteralType ||
e.nodeType() == ASTNode::BoolLiteralType ||
e.nodeType() == ASTNode::IntLiteralType ||
e.nodeType() == ASTNode::VectorLiteralType ||
e.nodeType() == ASTNode::ArrayLiteralType ||
e.nodeType() == ASTNode::TupleLiteralType;
}
static bool isReferenceToArray(const ASTNodeRef& e)
{
if(e->nodeType() == ASTNode::LetType &&
e->type()->getType() == Type::ArrayTypeType)
return true;
return false;
}*/
static bool shouldFoldExpression(ASTNodeRef& e, TraversalPayload& payload)
{
assert(e.nonNull());
if(e->can_maybe_constant_fold)
{
// Do type check of subtree.
// We need to do this otherwise constant folding could allow otherwise mistyped programs to compile, e.g. elem([1, true]v, 0)
const bool expr_is_well_typed = expressionIsWellTyped(*e, payload);
// Return true if e is not already a literal for its type.
const TypeRef e_type = e->type();
return expr_is_well_typed && e_type.nonNull() &&
((e_type->getType() == Type::FloatType && (e->nodeType() != ASTNode::FloatLiteralType)) ||
(e_type->getType() == Type::DoubleType && (e->nodeType() != ASTNode::DoubleLiteralType)) ||
(e_type->getType() == Type::BoolType && (e->nodeType() != ASTNode::BoolLiteralType)) ||
(e_type->getType() == Type::IntType && (e->nodeType() != ASTNode::IntLiteralType)) ||
(e_type->getType() == Type::VectorTypeType && (e->nodeType() != ASTNode::VectorLiteralType)) ||
(e_type->getType() == Type::ArrayTypeType && (e->nodeType() != ASTNode::ArrayLiteralType && e->nodeType() != ASTNode::VariableASTNodeType)) ||
(e_type->getType() == Type::TupleTypeType && (e->nodeType() != ASTNode::TupleLiteralType)) ||
// Type is structure type and e is not already a call to the constructor:
(e_type->getType() == Type::StructureTypeType && (e->nodeType() != ASTNode::FunctionExpressionType || e.downcastToPtr<FunctionExpression>()->static_function_name != e_type.downcastToPtr<StructureType>()->name))
);
}
return false;
}
static ASTNodeRef makeLiteralASTNodeFromValue(const ValueRef& value, const SrcLocation& src_location, const TypeVRef& type, TraversalPayload& payload,
std::vector<ASTNode*>& stack)
{
switch(value->valueType())
{
case Value::ValueType_Float:
{
if(type->getType() != Type::FloatType)
throw BaseException("invalid type");
return new FloatLiteral(value.downcastToPtr<FloatValue>()->value, src_location);
}
case Value::ValueType_Double:
{
if(type->getType() != Type::DoubleType)
throw BaseException("invalid type");
return new DoubleLiteral(value.downcastToPtr<DoubleValue>()->value, src_location);
}
case Value::ValueType_Int:
{
if(type->getType() != Type::IntType)
throw BaseException("invalid type");
return new IntLiteral(value.downcastToPtr<IntValue>()->value, type.downcastToPtr<Int>()->numBits(), value.downcastToPtr<IntValue>()->is_signed, src_location);
}
case Value::ValueType_Bool:
{
if(type->getType() != Type::BoolType)
throw BaseException("invalid type");
return new BoolLiteral(value.downcastToPtr<BoolValue>()->value, src_location);
}
case Value::ValueType_Array:
{
if(type->getType() != Type::ArrayTypeType)
throw BaseException("invalid type");
const ArrayValue* array_val = value.downcastToPtr<ArrayValue>();
vector<ASTNodeRef> elem_literals(array_val->e.size());
for(size_t i=0; i<array_val->e.size(); ++i)
elem_literals[i] = makeLiteralASTNodeFromValue(array_val->e[i], src_location, type.downcastToPtr<ArrayType>()->elem_type, payload, stack);
// TODO: preserve int suffix, useful for large arrays etc..
return new ArrayLiteral(elem_literals, src_location,
false, // has int suffix
0 // int suffix
);
}
case Value::ValueType_Vector:
{
if(type->getType() != Type::VectorTypeType)
throw BaseException("invalid type");
const VectorValue* vector_val = value.downcastToPtr<VectorValue>();
vector<ASTNodeRef> elem_literals(vector_val->e.size());
for(size_t i=0; i<vector_val->e.size(); ++i)
elem_literals[i] = makeLiteralASTNodeFromValue(vector_val->e[i], src_location, type.downcastToPtr<VectorType>()->elem_type, payload, stack);
// TODO: preserve int suffix, useful for large vectors etc..
return new VectorLiteral(elem_literals, src_location,
false, // has int suffix
0 // int suffix
);
}
case Value::ValueType_Structure:
{
if(type->getType() != Type::StructureTypeType)
throw BaseException("invalid type");
// Make a constructor call for the structure
const StructureValue* struct_val = value.downcastToPtr<StructureValue>();
vector<ASTNodeRef> elem_literals(struct_val->fields.size());
for(size_t i=0; i<struct_val->fields.size(); ++i)
elem_literals[i] = makeLiteralASTNodeFromValue(struct_val->fields[i], src_location, type.downcastToPtr<StructureType>()->component_types[i], payload, stack);
FunctionExpressionRef func_expr = new FunctionExpression(src_location);
func_expr->static_function_name = type.downcastToPtr<StructureType>()->name;
func_expr->argument_expressions = elem_literals;
// Bind function
{
TraversalPayload temp_payload(TraversalPayload::BindVariables);
temp_payload.linker = payload.linker;
temp_payload.func_def_stack = payload.func_def_stack;
func_expr->traverse(temp_payload, stack);
}
return func_expr;
}
default:
{
throw BaseException("invalid type");
}
};
}
// Replace an expression with a constant (literal AST node)
static ASTNodeRef foldExpression(ASTNodeRef& e, TraversalPayload& payload, std::vector<ASTNode*>& stack)
{
// Compute value of expression
VMState vmstate;
vmstate.func_args_start.push_back(0);
ValueRef retval = e->exec(vmstate);
vmstate.func_args_start.pop_back();
const TypeRef e_type = e->type();
assert(e_type.nonNull()); // This should have been checked in checkFoldExpression() etc..
if(e_type.isNull())
throw ExceptionWithPosition("Internal error: Expression type was null during constant folding.", errorContext(*e));
const ASTNodeRef literal_node = makeLiteralASTNodeFromValue(retval, e->srcLocation(), TypeVRef(e_type), payload, stack);
return literal_node;
}
// Returns true if folding took place or e is already a literal. (Or could be folded to a literal if needed, such as a let var referring to an array)
bool checkFoldExpression(ASTNodeRef& e, TraversalPayload& payload, std::vector<ASTNode*>& stack)
{
if(e.isNull())
return false;
if(shouldFoldExpression(e, payload))
{
try
{
e = foldExpression(e, payload, stack);
payload.tree_changed = true;
return true;
}
catch(BaseException& )
{
// An invalid operation was performed, such as dividing by zero, while trying to eval the AST node.
// In this case we will consider the folding as not taking place.
return false;
}
}
// e may already be a literal
const TypeRef e_type = e->type();
const bool e_is_literal = e_type.nonNull() &&
( (e_type->getType() == Type::FloatType && (e->nodeType() == ASTNode::FloatLiteralType)) ||
(e_type->getType() == Type::DoubleType && (e->nodeType() == ASTNode::DoubleLiteralType)) ||
(e_type->getType() == Type::BoolType && (e->nodeType() == ASTNode::BoolLiteralType)) ||
(e_type->getType() == Type::IntType && (e->nodeType() == ASTNode::IntLiteralType)) ||
(e_type->getType() == Type::VectorTypeType && (e->nodeType() == ASTNode::VectorLiteralType)) ||
(e_type->getType() == Type::ArrayTypeType && (e->nodeType() == ASTNode::ArrayLiteralType || e->nodeType() == ASTNode::VariableASTNodeType)) ||
(e_type->getType() == Type::TupleTypeType && (e->nodeType() == ASTNode::TupleLiteralType)) ||
// Type is structure type and e is a call to the constructor:
(e_type->getType() == Type::StructureTypeType && (e->nodeType() == ASTNode::FunctionExpressionType && e.downcastToPtr<FunctionExpression>()->static_function_name == e_type.downcastToPtr<StructureType>()->name))
);
return e_is_literal && e->can_maybe_constant_fold;
}
const std::string mapOpenCLCVarName(const std::unordered_set<std::string>& opencl_c_keywords, const std::string& s)
{
if(opencl_c_keywords.count(s))
return s + "_MODIFIED_";
else
return s;
}
/*
Process an AST node with two children, a and b.
Do implicit conversion from int to float
3.0 > 4 => 3.0 > 4.0
Updates the nodes a and b in place if needed.
*/
static void doImplicitIntToFloatTypeCoercion(ASTNodeRef& a, ASTNodeRef& b, TraversalPayload& payload)
{
// Type may be null if 'a' is a variable node that has not been bound yet.
const TypeRef a_type = a->type();
const TypeRef b_type = b->type();
// TODO: Handle integer bitness
// 3.0 > 4 => 3.0 > 4.0
if(a_type.nonNull() && a_type->getType() == Type::FloatType && b->nodeType() == ASTNode::IntLiteralType)
{
const IntLiteral* b_lit = b.downcastToPtr<IntLiteral>();
if(isIntExactlyRepresentableAsFloat(b_lit->value))
{
b = new FloatLiteral((float)b_lit->value, b->srcLocation());
payload.tree_changed = true;
}
}
// 3 > 4.0 => 3.0 > 4.0
if(b_type.nonNull() && b_type->getType() == Type::FloatType && a->nodeType() == ASTNode::IntLiteralType)
{
const IntLiteral* a_lit = a.downcastToPtr<IntLiteral>();
if(isIntExactlyRepresentableAsFloat(a_lit->value))
{
a = new FloatLiteral((float)a_lit->value, a->srcLocation());
payload.tree_changed = true;
}
}
}
static void doImplicitIntToDoubleTypeCoercion(ASTNodeRef& a, ASTNodeRef& b, TraversalPayload& payload)
{
// Type may be null if 'a' is a variable node that has not been bound yet.
const TypeRef a_type = a->type();
const TypeRef b_type = b->type();
// 3.0 > 4 => 3.0 > 4.0
if(a_type.nonNull() && a_type->getType() == Type::DoubleType && b->nodeType() == ASTNode::IntLiteralType)
{
const IntLiteral* b_lit = b.downcastToPtr<IntLiteral>();
if(isIntExactlyRepresentableAsDouble(b_lit->value))
{
b = new DoubleLiteral((double)b_lit->value, b->srcLocation());
payload.tree_changed = true;
}
}
// 3 > 4.0 => 3.0 > 4.0
if(b_type.nonNull() && b_type->getType() == Type::DoubleType && a->nodeType() == ASTNode::IntLiteralType)
{
const IntLiteral* a_lit = a.downcastToPtr<IntLiteral>();
if(isIntExactlyRepresentableAsFloat(a_lit->value))
{
a = new DoubleLiteral((double)a_lit->value, a->srcLocation());
payload.tree_changed = true;
}
}
}
static void doImplicitIntTypeCoercion(ASTNodeRef& a, ASTNodeRef& b, TraversalPayload& payload)
{
// Type may be null if 'a' is a variable node that has not been bound yet.
const TypeRef a_type = a->type();
const TypeRef b_type = b->type();
if(a_type.nonNull() && a_type->getType() == Type::IntType && b_type.nonNull() && b_type->getType() == Type::IntType)
{
const Int* a_int_type = a_type.downcastToPtr<Int>();
const Int* b_int_type = b_type.downcastToPtr<Int>();
// 3i64 > 4i32 => 3i64 > 4i64
if((a_int_type->numBits() == 64) && (b_int_type->numBits() == 32) && (b->nodeType() == ASTNode::IntLiteralType))
{
b = new IntLiteral(b.downcastToPtr<IntLiteral>()->value, 64, b.downcastToPtr<IntLiteral>()->is_signed, b->srcLocation());
payload.tree_changed = true;
}
// 3i32 > 4i64 => 3i64 > 4i64
if((b_int_type->numBits() == 64) && (a_int_type->numBits() == 32) && (a->nodeType() == ASTNode::IntLiteralType))
{
a = new IntLiteral(a.downcastToPtr<IntLiteral>()->value, 64, a.downcastToPtr<IntLiteral>()->is_signed, b->srcLocation());
payload.tree_changed = true;
}
}
}
static bool canDoImplicitIntToFloatTypeCoercion(const ASTNodeRef& a, const ASTNodeRef& b)
{
// Type may be null if 'a' is a variable node that has not been bound yet.
const TypeRef a_type = a->type();
const TypeRef b_type = b->type();
// TODO: Handle integer bitness
if(a_type.nonNull() && b_type.nonNull())
{
// 3.0 > 4 => 3.0 > 4.0
if(a_type->getType() == Type::FloatType && b_type->getType() == Type::IntType)
return true;
// 3 > 4.0 => 3.0 > 4.0
if(a_type->getType() == Type::IntType && b_type->getType() == Type::FloatType)
return true;
}
//// 3.0 > 4 => 3.0 > 4.0
//if(a_type.nonNull() && a_type->getType() == Type::FloatType && b_type.nonNull() && b_type->getType() == Type::IntType) //b->nodeType() == ASTNode::IntLiteralType)
// //if(isIntExactlyRepresentableAsFloat(b.downcastToPtr<IntLiteral>()->value))
// return true;
//// 3 > 4.0 => 3.0 > 4.0
//if(b_type.nonNull() && b_type->getType() == Type::FloatType && a_type.nonNull() && a_type->getType() == Type::IntType) // a->nodeType() == ASTNode::IntLiteralType)
// //if(isIntExactlyRepresentableAsFloat(a.downcastToPtr<IntLiteral>()->value))
// return true;
return false;
}
static bool canDoImplicitIntToDoubleTypeCoercion(const ASTNodeRef& a, const ASTNodeRef& b)
{
// Type may be null if 'a' is a variable node that has not been bound yet.
const TypeRef a_type = a->type();
const TypeRef b_type = b->type();
if(a_type.nonNull() && b_type.nonNull())
{
// 3.0 > 4 => 3.0 > 4.0
if(a_type->getType() == Type::DoubleType && b_type->getType() == Type::IntType)
return true;
// 3 > 4.0 => 3.0 > 4.0
if(a_type->getType() == Type::IntType && b_type->getType() == Type::DoubleType)
return true;
}
return false;
}
/*
Replace code like
def f() float : 1
with
def f() float : 1.0f
*/
void doImplicitIntToFloatTypeCoercionForFloatReturn(ASTNodeRef& expr, TraversalPayload& payload)
{
const FunctionDefinition* current_func = payload.func_def_stack.back();
if(expr->nodeType() == ASTNode::IntLiteralType &&
current_func->declared_return_type.nonNull() && current_func->declared_return_type->getType() == Type::FloatType
)
{
const IntLiteral* body_lit = expr.downcastToPtr<IntLiteral>();
if(isIntExactlyRepresentableAsFloat(body_lit->value))
{
expr = new FloatLiteral((float)body_lit->value, body_lit->srcLocation());
payload.tree_changed = true;
}
}
}
void doImplicitIntToDoubleTypeCoercionForDoubleReturn(ASTNodeRef& expr, TraversalPayload& payload)
{
const FunctionDefinition* current_func = payload.func_def_stack.back();
if(expr->nodeType() == ASTNode::IntLiteralType &&
current_func->declared_return_type.nonNull() && current_func->declared_return_type->getType() == Type::DoubleType
)
{
const IntLiteral* body_lit = expr.downcastToPtr<IntLiteral>();
if(isIntExactlyRepresentableAsDouble(body_lit->value))
{
expr = new DoubleLiteral((double)body_lit->value, body_lit->srcLocation());
payload.tree_changed = true;
}
}
}
//static bool isIntLiteralAndExactlyRepresentableAsFloat(const ASTNodeRef& node)
//{
// return node->nodeType() == ASTNode::IntLiteralType && isIntExactlyRepresentableAsFloat(node.downcastToPtr<IntLiteral>()->value);
//}
/*
Do two expressions have the same value?
Cases where they have the same value:
both variable nodes that refer to the same variable.
*/
bool expressionsHaveSameValue(const ASTNodeRef& a, const ASTNodeRef& b)
{
if(a->nodeType() == ASTNode::VariableASTNodeType && b->nodeType() == ASTNode::VariableASTNodeType)
{
const Variable* avar = static_cast<const Variable*>(a.getPointer());
const Variable* bvar = static_cast<const Variable*>(b.getPointer());
if(avar->binding_type != bvar->binding_type)
return false;
if(avar->binding_type == Variable::BindingType_Argument)
{
return
avar->bound_function == bvar->bound_function &&
avar->arg_index == bvar->arg_index;
}
else if(avar->binding_type == Variable::BindingType_Let)
{
return
avar->bound_let_node == bvar->bound_let_node &&
avar->let_var_index == bvar->let_var_index;
}
else
{
// TODO: captured vars etc..
assert(0);
}
}
return false;
}
void emitDestructorOrDecrCall(EmitLLVMCodeParams& params, const ASTNode& e, llvm::Value* value, const std::string& comment)
{
const TypeRef& type = e.type();
if(type->isHeapAllocated())
type->emitDecrRefCount(params, value, comment);
else
type->emitDestructorCall(params, value, comment);
}
bool mayEscapeCurrentlyBuildingFunction(EmitLLVMCodeParams& params, const TypeRef& type)
{
const TypeRef return_type = params.currently_building_func_def->returnType();
// If the type is the same as the function return type, or is contained by the return type (e.g. is a field of the return type), return true.
if(isEqualToOrContains(*return_type, *type))
return true;
// Return true if the type may be captured by a closure being returned.
if(params.currently_building_func_def->returnType()->getType() == Type::FunctionType)
{
for(auto i = params.currently_building_func_def->captured_var_types.begin(); i != params.currently_building_func_def->captured_var_types.end(); ++i)
{
const TypeRef captured_var_type = *i;
if(isEqualToOrContains(*captured_var_type, *type))
return true;
}
}
return false;
}
/*void replaceAllUsesWith(Reference<ASTNode>& old_node, Reference<ASTNode>& new_node)
{
new_node->uprefs.resize(old_node->uprefs.size());
for(size_t i=0; i<old_node->uprefs.size(); ++i)
{
old_node->uprefs[i]->updateTarget(new_node.getPointer());
new_node->uprefs[i] = old_node->uprefs[i];
}
}*/
Reference<ASTNode> cloneASTNodeSubtree(Reference<ASTNode>& n)
{
TraversalPayload update_refs_payload(TraversalPayload::UpdateUpRefs);
Reference<ASTNode> cloned = n->clone(update_refs_payload.clone_map);
// Update all uprefs in the cloned body to point to the cloned body instead of the original body.
std::vector<ASTNode*> stack; // NOTE: does it matter that stack is empty here?
cloned->traverse(update_refs_payload, stack);
return cloned;
}
//----------------------------------------------------------------------------------
void BufferRoot::traverse(TraversalPayload& payload, std::vector<ASTNode*>& stack)
{
stack.resize(0);
stack.push_back(this);
for(unsigned int i=0; i<top_level_defs.size(); ++i)
top_level_defs[i]->traverse(payload, stack);
stack.pop_back();
}
void BufferRoot::print(int depth, std::ostream& s) const
{
//s << "========================================================\n";
for(unsigned int i=0; i<top_level_defs.size(); ++i)
{
top_level_defs[i]->print(depth+1, s);
s << "\n";
}
}
std::string BufferRoot::sourceString(int depth) const
{
std::string s;
for(unsigned int i=0; i<top_level_defs.size(); ++i)
{
//s += top_level_defs[i]->sourceString();
switch(top_level_defs[i]->nodeType())
{
case Winter::ASTNode::FunctionDefinitionType:
{
if(top_level_defs[i].downcastToPtr<Winter::FunctionDefinition>()->body.nonNull()) // If not a built-in function:
{
std::string func_src = top_level_defs[i]->sourceString(depth);
s += func_src;
s += "\n";
}
break;
}
default:
{
std::string node_src = top_level_defs[i]->sourceString(depth);
s += node_src;
s += "\n";
break;
}
};
s += "\n";
}
return s;
}
std::string BufferRoot::emitOpenCLC(EmitOpenCLCodeParams& params) const
{
std::string s;
for(unsigned int i=0; i<top_level_defs.size(); ++i)
{
s += top_level_defs[i]->emitOpenCLC(params);
s += "\n";
}
return s;
}
llvm::Value* BufferRoot::emitLLVMCode(EmitLLVMCodeParams& params, llvm::Value* ret_space_ptr) const
{
assert(0);
return NULL;
}
Reference<ASTNode> BufferRoot::clone(CloneMapType& clone_map)
{
throw BaseException("BufferRoot::clone()");
}
bool BufferRoot::isConstant() const
{
assert(0);
return false;
}
size_t BufferRoot::getTimeBound(GetTimeBoundParams& params) const
{
assert(0);
return 0;
}
GetSpaceBoundResults BufferRoot::getSpaceBound(GetSpaceBoundParams& params) const
{
assert(0);
return GetSpaceBoundResults(0, 0);
}
size_t BufferRoot::getSubtreeCodeComplexity() const
{
assert(0);
return 0;
}
//----------------------------------------------------------------------------------
BufferPosition errorContext(const ASTNode* n)
{
return errorContext(*n);
}
std::string errorContextString(const ASTNode* n)
{
return errorContextString(*n);
}
BufferPosition errorContext(const ASTNode& n)
{
return BufferPosition(n.srcLocation().source_buffer, n.srcLocation().char_index, n.srcLocation().len);
}
std::string errorContextString(const ASTNode& n)
{
return Diagnostics::positionString(BufferPosition(n.srcLocation().source_buffer, n.srcLocation().char_index, n.srcLocation().len));
}
BufferPosition errorContext(const SrcLocation& src_location)
{
return BufferPosition(src_location.source_buffer, src_location.char_index, src_location.len);
}
std::string errorContextString(const SrcLocation& src_location)
{
const SourceBuffer* source_buffer = src_location.source_buffer;
if(source_buffer == NULL)
return "Invalid Location";
return Diagnostics::positionString(BufferPosition(source_buffer, src_location.char_index, src_location.len));
}
BufferPosition errorContext(const ASTNode& n, TraversalPayload& payload)
{
return errorContext(n);
}
bool isTargetDefinedBeforeAllInStack(const std::vector<FunctionDefinition*>& func_def_stack, int target_function_order_num)
{
if(target_function_order_num == -1) // If target is a built-in function etc.. then there are no ordering problems.
return true;
for(size_t i=0; i<func_def_stack.size(); ++i)
if(target_function_order_num >= func_def_stack[i]->order_num)
return false;
return true;
}
//------------------------------------------------------------------------------------
ValueRef FloatLiteral::exec(VMState& vmstate)
{
return new FloatValue(value);
}
void FloatLiteral::print(int depth, std::ostream& s) const
{
printMargin(depth, s);
s << "Float literal: " + floatLiteralString(this->value) + "\n";
}
std::string FloatLiteral::sourceString(int depth) const
{
return floatLiteralString(this->value);
}
std::string FloatLiteral::emitOpenCLC(EmitOpenCLCodeParams& params) const
{
if(isNAN(this->value))
return "nan((uint)0)";
else
return floatLiteralString(this->value);
}
llvm::Value* FloatLiteral::emitLLVMCode(EmitLLVMCodeParams& params, llvm::Value* ret_space_ptr) const
{
return llvm::ConstantFP::get(
*params.context,
llvm::APFloat(this->value)
);
}
Reference<ASTNode> FloatLiteral::clone(CloneMapType& clone_map)
{
FloatLiteral* res = new FloatLiteral(value, srcLocation());
clone_map.insert(std::make_pair(this, res));
return res;
}
//------------------------------------------------------------------------------------
ValueRef DoubleLiteral::exec(VMState& vmstate)
{
return new DoubleValue(value);
}
void DoubleLiteral::print(int depth, std::ostream& s) const
{
printMargin(depth, s);
s << "Double literal: " + doubleLiteralString(this->value) + "\n";
}
std::string DoubleLiteral::sourceString(int depth) const
{
return doubleLiteralString(this->value);
}
std::string DoubleLiteral::emitOpenCLC(EmitOpenCLCodeParams& params) const
{
if(isNAN(this->value))
return "nan((ulong)0)";
else
return doubleLiteralString(this->value);
}
llvm::Value* DoubleLiteral::emitLLVMCode(EmitLLVMCodeParams& params, llvm::Value* ret_space_ptr) const
{
return llvm::ConstantFP::get(
*params.context,
llvm::APFloat(this->value)
);
}
Reference<ASTNode> DoubleLiteral::clone(CloneMapType& clone_map)
{
DoubleLiteral* res = new DoubleLiteral(value, srcLocation());
clone_map.insert(std::make_pair(this, res));
return res;
}
//------------------------------------------------------------------------------------
ValueRef IntLiteral::exec(VMState& vmstate)
{
return new IntValue(value, is_signed);
}
void IntLiteral::print(int depth, std::ostream& s) const
{
printMargin(depth, s);
s << "Int literal: " << this->value << ", signed: " << is_signed << "\n";
}
std::string IntLiteral::sourceString(int depth) const
{
if(num_bits == 32)
{
if(is_signed)
return toString(this->value);
else
return toString(this->value) + "u";
}
else
{
if(is_signed)
return toString(this->value) + "i" + toString(num_bits);
else
return toString(this->value) + "u" + toString(num_bits);
}
}
std::string IntLiteral::emitOpenCLC(EmitOpenCLCodeParams& params) const
{
// NOTE: How does OpenCL handle literals with num bits > 32?
if(is_signed)
return toString(this->value);
else
return toString(this->value) + "u";
}
llvm::Value* IntLiteral::emitLLVMCode(EmitLLVMCodeParams& params, llvm::Value* ret_space_ptr) const
{
return llvm::ConstantInt::get(
*params.context,
llvm::APInt(
this->num_bits, // num bits
this->value, // value
this->is_signed // signed
)
);
}
Reference<ASTNode> IntLiteral::clone(CloneMapType& clone_map)
{
IntLiteral* res = new IntLiteral(value, num_bits, is_signed, srcLocation());
clone_map.insert(std::make_pair(this, res));
return res;
}
GetSpaceBoundResults IntLiteral::getSpaceBound(GetSpaceBoundParams& params) const
{
return GetSpaceBoundResults(0, 0);
}
//-------------------------------------------------------------------------------------
ValueRef BoolLiteral::exec(VMState& vmstate)
{
return new BoolValue(value);
}
void BoolLiteral::print(int depth, std::ostream& s) const
{
printMargin(depth, s);
s << "Bool literal: " + boolToString(this->value) + "\n";
}