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jak-project/goalc/compiler/compilation/Math.cpp
ManDude 2feb231105
less branches for division + fix divide by zeros (#2585) 
Slight change to float divide operations (again). Now it only turns into
inverse multiplication if the float is a power of 2 (positive or
negative). Non-zero immediate divisors will be compiled as regular float
divisions but will forgo the extra branches and checks for divide by
zero.

Also fixes #2584
2023-04-29 21:10:51 +01:00

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#include <cfloat>
#include "common/goos/PrettyPrinter.h"
#include "common/util/BitUtils.h"
#include "goalc/compiler/Compiler.h"
MathMode Compiler::get_math_mode(const TypeSpec& ts) {
if (m_ts.tc(m_ts.make_typespec("binteger"), ts)) {
return MATH_BINT;
}
if (m_ts.tc(m_ts.make_typespec("integer"), ts)) {
return MATH_INT;
}
if (m_ts.tc(m_ts.make_typespec("float"), ts)) {
return MATH_FLOAT;
}
return MATH_INVALID;
}
bool Compiler::is_number(const TypeSpec& ts) {
return m_ts.tc(m_ts.make_typespec("number"), ts);
}
bool Compiler::is_float(const TypeSpec& ts) {
return m_ts.tc(m_ts.make_typespec("float"), ts);
}
bool Compiler::is_integer(const TypeSpec& ts) {
return m_ts.tc(m_ts.make_typespec("integer"), ts) && !m_ts.tc(m_ts.make_typespec("binteger"), ts);
}
bool Compiler::is_binteger(const TypeSpec& ts) {
return m_ts.tc(m_ts.make_typespec("binteger"), ts);
}
bool Compiler::is_singed_integer_or_binteger(const TypeSpec& ts) {
return m_ts.tc(m_ts.make_typespec("integer"), ts) && !m_ts.tc(m_ts.make_typespec("uinteger"), ts);
}
Val* Compiler::number_to_integer(const goos::Object& form, Val* in, Env* env) {
(void)env;
auto ts = in->type();
if (is_binteger(ts)) {
throw_compiler_error(form, "Cannot convert {} (a binteger) to an integer yet.", in->print());
} else if (is_float(ts)) {
auto fe = env->function_env();
auto result = fe->make_gpr(m_ts.make_typespec("int"));
env->emit_ir<IR_FloatToInt>(form, result, in->to_fpr(form, env));
return result;
} else if (is_integer(ts)) {
return in;
}
throw_compiler_error(form, "Cannot convert a {} to an integer.", in->type().print());
return nullptr;
}
Val* Compiler::number_to_binteger(const goos::Object& form, Val* in, Env* env) {
(void)env;
auto ts = in->type();
if (is_binteger(ts)) {
return in;
} else if (is_float(ts)) {
throw_compiler_error(form, "Cannot convert {} (a float) to an integer yet.", in->print());
} else if (is_integer(ts)) {
auto fe = env->function_env();
RegVal* input = in->to_reg(form, env);
auto sa = fe->make_gpr(m_ts.make_typespec("int"));
env->emit_ir<IR_LoadConstant64>(form, sa, 3);
auto result = compile_variable_shift(form, input, sa, env, IntegerMathKind::SHLV_64);
result->set_type(m_ts.make_typespec("binteger"));
return result;
}
throw_compiler_error(form, "Cannot convert a {} to a binteger.", in->type().print());
return nullptr;
}
Val* Compiler::number_to_float(const goos::Object& form, Val* in, Env* env) {
(void)env;
auto ts = in->type();
if (is_binteger(ts)) {
throw_compiler_error(form, "Cannot convert {} (a binteger) to an float yet.", in->print());
} else if (is_float(ts)) {
return in;
} else if (is_integer(ts)) {
auto fe = env->function_env();
auto result = fe->make_fpr(m_ts.make_typespec("float"));
env->emit_ir<IR_IntToFloat>(form, result, in->to_gpr(form, env));
return result;
}
throw_compiler_error(form, "Cannot convert a {} to a float.", in->type().print());
return nullptr;
}
Val* Compiler::to_math_type(const goos::Object& form, Val* in, MathMode mode, Env* env) {
switch (mode) {
case MATH_BINT:
return number_to_binteger(form, in, env);
case MATH_INT:
return number_to_integer(form, in, env);
case MATH_FLOAT:
return number_to_float(form, in, env);
default:
throw_compiler_error(form, "Cannot do math on a {}.", in->type().print());
}
return nullptr;
}
Val* Compiler::compile_add(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.empty()) {
throw_compiler_error(form, "Invalid + form");
}
// look at the first value to determine the math mode
auto first_val = compile_error_guard(args.unnamed.at(0), env);
auto first_type = first_val->type();
auto math_type = get_math_mode(first_type);
switch (math_type) {
case MATH_INT:
case MATH_BINT: {
auto result = env->make_gpr(first_type);
env->emit_ir<IR_RegSet>(form, result, first_val->to_gpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
env->emit_ir<IR_IntegerMath>(
form, IntegerMathKind::ADD_64, result,
to_math_type(form, compile_error_guard(args.unnamed.at(i), env), math_type, env)
->to_gpr(form, env));
}
return result;
}
case MATH_FLOAT: {
auto result = env->make_fpr(first_type);
env->emit_ir<IR_RegSet>(form, result, first_val->to_fpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
env->emit_ir<IR_FloatMath>(
form, FloatMathKind::ADD_SS, result,
to_math_type(form, compile_error_guard(args.unnamed.at(i), env), math_type, env)
->to_fpr(form, env));
}
return result;
}
case MATH_INVALID:
throw_compiler_error(form, "Cannot do math on a {}.", first_type.print());
break;
default:
ASSERT(false);
}
ASSERT(false);
return get_none();
}
Val* Compiler::compile_mul(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.empty()) {
throw_compiler_error(form, "Invalid * form");
}
// look at the first value to determine the math mode
auto first_val = compile_error_guard(args.unnamed.at(0), env);
auto first_type = first_val->type();
auto math_type = get_math_mode(first_type);
switch (math_type) {
case MATH_INT: {
auto result = env->make_gpr(first_type);
env->emit_ir<IR_RegSet>(form, result, first_val->to_gpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
auto val = compile_error_guard(args.unnamed.at(i), env);
auto val_as_int = dynamic_cast<IntegerConstantVal*>(val);
int power_of_two = -1;
if (val_as_int && val_as_int->value().uses_gpr() && val_as_int->value().value_64() > 0) {
auto p = get_power_of_two(val_as_int->value().value_64());
if (p) {
power_of_two = *p;
}
}
if (power_of_two >= 0) {
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::SHL_64, result, power_of_two);
} else {
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::IMUL_32, result,
to_math_type(form, val, math_type, env)->to_gpr(form, env));
}
}
return result;
}
case MATH_FLOAT: {
auto result = env->make_fpr(first_type);
env->emit_ir<IR_RegSet>(form, result, first_val->to_fpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
env->emit_ir<IR_FloatMath>(
form, FloatMathKind::MUL_SS, result,
to_math_type(form, compile_error_guard(args.unnamed.at(i), env), math_type, env)
->to_fpr(form, env));
}
return result;
}
case MATH_INVALID:
throw_compiler_error(form, "Cannot do math on a {}.", first_type.print());
break;
default:
ASSERT(false);
}
ASSERT(false);
return get_none();
}
Val* Compiler::compile_fmin(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.empty()) {
throw_compiler_error(form, "Invalid fmin form");
}
// look at the first value to determine the math mode
auto first_val = compile_error_guard(args.unnamed.at(0), env);
if (get_math_mode(first_val->type()) != MATH_FLOAT) {
throw_compiler_error(form, "Must use floats in fmin");
}
auto result = env->make_fpr(first_val->type());
env->emit_ir<IR_RegSet>(form, result, first_val->to_fpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
auto val = compile_error_guard(args.unnamed.at(i), env);
if (get_math_mode(val->type()) != MATH_FLOAT) {
throw_compiler_error(form, "Must use floats in fmin");
}
env->emit_ir<IR_FloatMath>(form, FloatMathKind::MIN_SS, result, val->to_fpr(form, env));
}
return result;
}
Val* Compiler::compile_fmax(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.empty()) {
throw_compiler_error(form, "Invalid fmax form");
}
// look at the first value to determine the math mode
auto first_val = compile_error_guard(args.unnamed.at(0), env);
if (get_math_mode(first_val->type()) != MATH_FLOAT) {
throw_compiler_error(form, "Must use floats in fmax");
}
auto result = env->make_fpr(first_val->type());
env->emit_ir<IR_RegSet>(form, result, first_val->to_fpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
auto val = compile_error_guard(args.unnamed.at(i), env);
if (get_math_mode(val->type()) != MATH_FLOAT) {
throw_compiler_error(form, "Must use floats in fmax");
}
env->emit_ir<IR_FloatMath>(form, FloatMathKind::MAX_SS, result, val->to_fpr(form, env));
}
return result;
}
Val* Compiler::compile_sqrtf(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}}, {});
auto first_val = compile_error_guard(args.unnamed.at(0), env);
if (get_math_mode(first_val->type()) != MATH_FLOAT) {
throw_compiler_error(form, "Must use a float for sqrtf");
}
auto result = env->make_fpr(first_val->type());
env->emit_ir<IR_FloatMath>(form, FloatMathKind::SQRT_SS, result, first_val->to_fpr(form, env));
return result;
}
Val* Compiler::compile_imul64(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.empty()) {
throw_compiler_error(form, "Invalid imul64 form");
}
// look at the first value to determine the math mode
auto first_val = compile_error_guard(args.unnamed.at(0), env);
auto first_type = first_val->type();
auto math_type = get_math_mode(first_type);
switch (math_type) {
case MATH_INT: {
auto result = env->make_gpr(first_type);
env->emit_ir<IR_RegSet>(form, result, first_val->to_gpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
env->emit_ir<IR_IntegerMath>(
form, IntegerMathKind::IMUL_64, result,
to_math_type(form, compile_error_guard(args.unnamed.at(i), env), math_type, env)
->to_gpr(form, env));
}
return result;
}
case MATH_FLOAT:
case MATH_INVALID:
case MATH_BINT:
throw_compiler_error(form, "Cannot do imul64 on a {}.", first_type.print());
break;
default:
ASSERT(false);
}
ASSERT(false);
return get_none();
}
Val* Compiler::compile_sub(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.empty()) {
throw_compiler_error(form, "Invalid - form");
}
auto first_val = compile_error_guard(args.unnamed.at(0), env);
auto first_type = first_val->type();
auto math_type = get_math_mode(first_type);
switch (math_type) {
case MATH_INT:
if (args.unnamed.size() == 1) {
auto result = compile_integer(0, env)->to_gpr(form, env);
env->emit_ir<IR_IntegerMath>(
form, IntegerMathKind::SUB_64, result,
to_math_type(form, first_val, math_type, env)->to_gpr(form, env));
return result;
} else {
auto result = env->make_gpr(first_type);
env->emit_ir<IR_RegSet>(form, result,
to_math_type(form, first_val, math_type, env)->to_gpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
env->emit_ir<IR_IntegerMath>(
form, IntegerMathKind::SUB_64, result,
to_math_type(form, compile_error_guard(args.unnamed.at(i), env), math_type, env)
->to_gpr(form, env));
}
return result;
}
case MATH_FLOAT:
if (args.unnamed.size() == 1) {
auto result = compile_float(0, env, env->function_env()->segment)->to_fpr(form, env);
env->emit_ir<IR_FloatMath>(
form, FloatMathKind::SUB_SS, result,
to_math_type(form, first_val, math_type, env)->to_fpr(form, env));
return result;
} else {
auto result = env->make_fpr(first_type);
env->emit_ir<IR_RegSet>(form, result,
to_math_type(form, first_val, math_type, env)->to_fpr(form, env));
for (size_t i = 1; i < args.unnamed.size(); i++) {
env->emit_ir<IR_FloatMath>(
form, FloatMathKind::SUB_SS, result,
to_math_type(form, compile_error_guard(args.unnamed.at(i), env), math_type, env)
->to_fpr(form, env));
}
return result;
}
case MATH_INVALID:
throw_compiler_error(form, "Cannot do math on a {}.", first_type.print());
break;
default:
ASSERT(false);
}
ASSERT(false);
return get_none();
}
Val* Compiler::compile_floating_point_division(const goos::Object& form,
const TypeSpec& result_type,
RegVal* a,
RegVal* b,
Env* env,
bool imm_divisor) {
constexpr bool use_accurate = true;
auto result = env->make_fpr(result_type);
if (use_accurate && !imm_divisor) {
auto fenv = env->function_env();
auto end_label = fenv->alloc_unnamed_label();
end_label->func = fenv;
end_label->idx = -10; // placeholder
auto zero = compile_float(0.0, env, fenv->segment_for_static_data())->to_fpr(form, env);
Condition zero_check;
zero_check.kind = ConditionKind::EQUAL;
zero_check.a = zero;
zero_check.b = b;
zero_check.is_float = true;
// check for divide by zero
auto branch_ir = std::make_unique<IR_ConditionalBranch>(zero_check, Label());
auto branch_ir_ref = branch_ir.get();
env->emit(form, std::move(branch_ir));
// code for not dividing by zero
env->emit_ir<IR_RegSet>(form, result, a);
env->emit_ir<IR_FloatMath>(form, FloatMathKind::DIV_SS, result, b);
env->emit_ir<IR_GotoLabel>(form, end_label);
branch_ir_ref->mark_as_resolved();
branch_ir_ref->label.idx = fenv->code().size();
// code for dividing by zero
auto flt_max = compile_integer(0x7f7fffff, env)->to_gpr(form, env);
auto mask = compile_integer(0x80000000, env)->to_gpr(form, env);
auto temp_int = env->make_gpr(result_type);
env->emit_ir<IR_RegSet>(form, temp_int, a);
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::AND_64, temp_int, mask);
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::XOR_64, flt_max, temp_int);
env->emit_ir<IR_RegSet>(form, temp_int, b);
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::AND_64, temp_int, mask);
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::XOR_64, flt_max, temp_int);
env->emit_ir<IR_RegSet>(form, result, flt_max);
end_label->idx = fenv->code().size();
} else {
env->emit_ir<IR_RegSet>(form, result, a);
env->emit_ir<IR_FloatMath>(form, FloatMathKind::DIV_SS, result, b);
}
return result;
}
Val* Compiler::compile_div(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.size() != 2) {
throw_compiler_error(form, "Invalid / form");
}
auto first_val = compile_error_guard(args.unnamed.at(0), env);
auto first_type = first_val->type();
auto math_type = get_math_mode(first_type);
switch (math_type) {
case MATH_INT: {
auto fe = env->function_env();
auto first_thing = first_val->to_gpr(form, env);
auto result = env->make_gpr(first_type);
env->emit_ir<IR_RegSet>(form, result, first_thing);
auto val = compile_error_guard(args.unnamed.at(1), env);
auto val_as_int = dynamic_cast<IntegerConstantVal*>(val);
int power_of_two = -1;
if (val_as_int && val_as_int->value().uses_gpr() && val_as_int->value().value_64() > 0) {
auto p = get_power_of_two(val_as_int->value().value_64());
if (p) {
power_of_two = *p;
}
}
if (power_of_two >= 0) {
if (is_singed_integer_or_binteger(first_type)) {
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::SAR_64, result, power_of_two);
} else {
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::SHR_64, result, power_of_two);
}
} else {
IRegConstraint result_rax_constraint;
result_rax_constraint.instr_idx = fe->code().size();
result_rax_constraint.ireg = result->ireg();
result_rax_constraint.desired_register = emitter::RAX;
fe->constrain(result_rax_constraint);
if (is_singed_integer_or_binteger(first_type)) {
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::IDIV_32, result,
to_math_type(form, val, math_type, env)->to_gpr(form, env));
} else {
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::UDIV_32, result,
to_math_type(form, val, math_type, env)->to_gpr(form, env));
}
auto result_moved = env->make_gpr(first_type);
env->emit_ir<IR_RegSet>(form, result_moved, result);
return result_moved;
}
return result;
}
case MATH_FLOAT: {
const auto& divisor = args.unnamed.at(1);
// in original GOAL, immediate divisions were turned into inverse multiplications
if (divisor.is_float() && !divisor.is_float(0) && divisor.is_power_of_2_float()) {
// TODO eventually this should be smarter somehow
return compile_mul(
form,
pretty_print::build_list(
{goos::Object::make_float(1.0 / divisor.as_float()), args.unnamed.at(0)}),
env);
} else {
auto a = first_val->to_fpr(form, env);
auto b = to_math_type(form, compile_error_guard(divisor, env), math_type, env)
->to_fpr(form, env);
return compile_floating_point_division(form, first_type, a, b, env,
divisor.is_float() && !divisor.is_float(0));
}
}
case MATH_INVALID:
throw_compiler_error(form, "Cannot do math on a {}.", first_type.print());
break;
default:
ASSERT(false);
}
ASSERT(false);
return get_none();
}
Val* Compiler::compile_variable_shift(const goos::Object& form,
const RegVal* in,
const RegVal* sa,
Env* env,
IntegerMathKind kind) {
auto result = env->make_gpr(in->type());
auto sa_in = env->make_gpr(sa->type());
env->emit_ir<IR_RegSet>(form, result, in);
env->emit_ir<IR_RegSet>(form, sa_in, sa);
auto fenv = env->function_env();
IRegConstraint sa_con;
sa_con.ireg = sa_in->ireg();
sa_con.instr_idx = fenv->code().size();
sa_con.desired_register = emitter::RCX;
if (get_math_mode(in->type()) != MathMode::MATH_INT ||
get_math_mode(sa->type()) != MathMode::MATH_INT) {
throw_compiler_error(form, "Cannot shift a {} by a {}", in->type().print(), sa->type().print());
}
fenv->constrain(sa_con);
env->emit_ir<IR_IntegerMath>(form, kind, result, sa_in);
return result;
}
Val* Compiler::compile_shl(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}, {}}, {});
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
auto sa = get_constant_integer_or_variable(args.unnamed.at(1), env);
if (sa.is_constant()) {
if (sa.constant < 0 || sa.constant > 64) {
throw_compiler_error(form, "Cannot shift by more than 64, or by a negative amount.");
}
return compile_fixed_shift(form, first, sa.constant, env, IntegerMathKind::SHL_64);
} else {
auto second = sa.val->to_gpr(form, env);
return compile_variable_shift(form, first, second, env, IntegerMathKind::SHLV_64);
}
}
Val* Compiler::compile_shr(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}, {}}, {});
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
auto sa = get_constant_integer_or_variable(args.unnamed.at(1), env);
if (sa.is_constant()) {
if (sa.constant < 0 || sa.constant > 64) {
throw_compiler_error(form, "Cannot shift by more than 64, or by a negative amount.");
}
return compile_fixed_shift(form, first, sa.constant, env, IntegerMathKind::SHR_64);
} else {
auto second = sa.val->to_gpr(form, env);
return compile_variable_shift(form, first, second, env, IntegerMathKind::SHRV_64);
}
}
Val* Compiler::compile_sar(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}, {}}, {});
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
auto sa = get_constant_integer_or_variable(args.unnamed.at(1), env);
if (sa.is_constant()) {
if (sa.constant < 0 || sa.constant > 64) {
throw_compiler_error(form, "Cannot shift by more than 64, or by a negative amount.");
}
return compile_fixed_shift(form, first, sa.constant, env, IntegerMathKind::SAR_64);
} else {
auto second = sa.val->to_gpr(form, env);
return compile_variable_shift(form, first, second, env, IntegerMathKind::SARV_64);
}
}
Val* Compiler::compile_fixed_shift(const goos::Object& form,
const RegVal* in,
u8 sa,
Env* env,
IntegerMathKind kind) {
// type check
if (get_math_mode(in->type()) != MathMode::MATH_INT) {
throw_compiler_error(form, "Cannot shift a {}.", in->type().print());
}
if (sa > 64) {
throw_compiler_error(form, "Cannot shift by more than 64.");
}
// copy to result register
auto result = env->make_gpr(in->type());
env->emit_ir<IR_RegSet>(form, result, in);
// do the shift
env->emit_ir<IR_IntegerMath>(form, kind, result, sa);
return result;
}
Val* Compiler::compile_mod(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}, {}}, {});
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
auto second = compile_error_guard(args.unnamed.at(1), env)->to_gpr(form, env);
auto fenv = env->function_env();
if (get_math_mode(first->type()) != MathMode::MATH_INT ||
get_math_mode(second->type()) != MathMode::MATH_INT) {
throw_compiler_error(form, "Cannot mod a {} by a {}.", first->type().print(),
second->type().print());
}
auto result = env->make_gpr(first->type());
env->emit_ir<IR_RegSet>(form, result, first);
IRegConstraint con;
con.ireg = result->ireg();
con.instr_idx = fenv->code().size();
con.desired_register = emitter::RAX;
fenv->constrain(con);
env->emit_ir<IR_IntegerMath>(form,
is_singed_integer_or_binteger(first->type())
? IntegerMathKind::IMOD_32
: IntegerMathKind::UMOD_32,
result, second);
auto result_moved = env->make_gpr(first->type());
env->emit_ir<IR_RegSet>(form, result_moved, result);
return result_moved;
}
Val* Compiler::compile_logand(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}, {}}, {});
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
auto second = compile_error_guard(args.unnamed.at(1), env)->to_gpr(form, env);
auto math_1 = get_math_mode(first->type());
auto math_2 = get_math_mode(second->type());
if (!((math_1 == MathMode::MATH_INT && math_2 == MathMode::MATH_INT) ||
(math_1 == MathMode::MATH_INT && m_ts.tc(TypeSpec("pointer"), second->type())) ||
(m_ts.tc(TypeSpec("pointer"), first->type()) && math_2 == MathMode::MATH_INT))) {
throw_compiler_error(form, "Cannot logand a {} by a {}.", first->type().print(),
second->type().print());
}
// kind of a hack, but make (logand int pointer) return pointer.
auto result =
env->make_gpr(m_ts.tc(TypeSpec("pointer"), second->type()) ? second->type() : first->type());
env->emit_ir<IR_RegSet>(form, result, first);
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::AND_64, result, second);
return result;
}
Val* Compiler::compile_logior(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
if (!args.named.empty() || args.unnamed.empty()) {
throw_compiler_error(form, "Invalid logior form");
}
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
auto result = env->make_gpr(first->type());
env->emit_ir<IR_RegSet>(form, result, first);
for (size_t i = 1; i < args.unnamed.size(); i++) {
auto sec = compile_error_guard(args.unnamed.at(i), env);
if (!is_integer(sec->type())) {
throw_compiler_error(form, "Cannot logior a {} by a {}.", first->type().print(),
sec->type().print());
}
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::OR_64, result, sec->to_gpr(form, env));
}
return result;
}
Val* Compiler::compile_logxor(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}, {}}, {});
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
auto second = compile_error_guard(args.unnamed.at(1), env)->to_gpr(form, env);
if (get_math_mode(first->type()) != MathMode::MATH_INT ||
get_math_mode(second->type()) != MathMode::MATH_INT) {
throw_compiler_error(form, "Cannot logxor a {} by a {}.", first->type().print(),
second->type().print());
}
auto result = env->make_gpr(first->type());
env->emit_ir<IR_RegSet>(form, result, first);
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::XOR_64, result, second);
return result;
}
Val* Compiler::compile_lognot(const goos::Object& form, const goos::Object& rest, Env* env) {
auto args = get_va(form, rest);
va_check(form, args, {{}}, {});
auto first = compile_error_guard(args.unnamed.at(0), env)->to_gpr(form, env);
if (get_math_mode(first->type()) != MathMode::MATH_INT) {
throw_compiler_error(form, "Cannot lognot a {}.", first->type().print());
}
auto result = env->make_gpr(first->type());
env->emit_ir<IR_RegSet>(form, result, first);
env->emit_ir<IR_IntegerMath>(form, IntegerMathKind::NOT_64, result, nullptr);
return result;
}
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