void CCodeGenerator::operator()(Assignment* expr) {
// Handle all types of assignment, including member assignment
Expression::Ptr init = expr->initializer();
if (dynamic_cast<Empty*>(init.pointer())) {
return_ = Operand(env_->integer("0"));
} else {
return_ = emit(init);
}
String::Ptr id = expr->identifier();
Variable::Ptr var = variable(id);
Attribute::Ptr attr = class_ ? class_->attribute(id) : 0;
if (var) {
// Assignment to a local var that has already been initialized once in
// the current scope.
Type::Ptr type = var->type();
if (!type->is_value()) {
refcount_dec(Operand(var->name()));
}
line();
out_ << id->string() << " = " << return_ << ";\n";
if (!type->is_value()) {
refcount_inc(Operand(var->name()));
}
} else if (attr) {
// Assignment to an attribute within a class
/*
Type::Ptr type = expr->type();
Variable::Ptr self = variable(env_->name("__self"));
Operand addr = Operand::addr(, attr->slot());
Operand old = load(addr);
if (!type->is_value() && !attr->is_weak()) {
refcount_dec(old);
}
store(addr, return_);
if (!type->is_value() && !attr->is_weak()) {
refcount_inc(return_);
}
*/
assert(!"not impl");
} else {
// Assignment to a local var that has not yet been initialized in the
// current scope.
Type::Ptr declared = expr->declared_type();
if (declared->is_top()) {
declared = expr->type();
}
line();
brace();
operator()(declared);
out_ << " " << id->string() << " = " << return_ << "; ";
out_ << "(void)" << id->string() << ";\n";
variable(new Variable(id, declared));
if (!declared->is_value()) {
refcount_inc(return_);
}
}
}
Operand CCodeGenerator::alloc_temp(Type* type) {
line();
brace();
operator()(type);
op_ = Operand(RegisterId(op_.reg().id()+1, 0));
out_ << " " << op_ << " = ";
return op_;
}
macro_line|#include <linux/ioport.h> macro_line|#include <asm/page.h> macro_line|#include <asm/oplib.h> macro_line|#include <asm/system.h> macro_line|#include <asm/smp.h> DECL|variable|__initdata r_struct id|prom_cpuinfo id|linux_cpus (braket l_int|64 )braket id|__initdata op_assign (brace (brace l_int|0 )brace )brace suffix:semicolon DECL|variable|prom_cpu_nodes r_int id|prom_cpu_nodes (braket l_int|64 )braket suffix:semicolon DECL|variable|linux_num_cpus r_int id|linux_num_cpus op_assign l_int|0
macro_line|#include <asm/iSeries/HvCallHpt.h> macro_line|#include <asm/abs_addr.h> macro_line|#include <linux/spinlock.h> DECL|variable|__cacheline_aligned_in_smp r_static id|spinlock_t id|iSeries_hlocks (braket l_int|64 )braket id|__cacheline_aligned_in_smp op_assign (brace (braket l_int|0 dot dot dot l_int|63 )braket op_assign id|SPIN_LOCK_UNLOCKED )brace suffix:semicolon multiline_comment|/*&n; * Very primitive algorithm for picking up a lock&n; */ DECL|function|iSeries_hlock r_static r_inline r_void id|iSeries_hlock c_func (paren
