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/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "jit_emit_compare.h"
#include "jit_emit_function.h"
#include "../jit_frontend.h"
#include "../jit_codegen.h"
static bool
jit_compile_op_compare_integer(JitCompContext *cc, IntCond cond, bool is64Bit)
{
JitReg lhs, rhs, res, const_zero, const_one;
if (cond < INT_EQZ || cond > INT_GE_U) {
jit_set_last_error(cc, "unsupported comparation operation");
goto fail;
}
res = jit_cc_new_reg_I32(cc);
const_zero = NEW_CONST(I32, 0);
const_one = NEW_CONST(I32, 1);
if (is64Bit) {
if (INT_EQZ == cond) {
rhs = NEW_CONST(I64, 0);
}
else {
POP_I64(rhs);
}
POP_I64(lhs);
}
else {
if (INT_EQZ == cond) {
rhs = NEW_CONST(I32, 0);
}
else {
POP_I32(rhs);
}
POP_I32(lhs);
}
GEN_INSN(CMP, cc->cmp_reg, lhs, rhs);
switch (cond) {
case INT_EQ:
case INT_EQZ:
{
GEN_INSN(SELECTEQ, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_NE:
{
GEN_INSN(SELECTNE, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_LT_S:
{
GEN_INSN(SELECTLTS, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_LT_U:
{
GEN_INSN(SELECTLTU, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_GT_S:
{
GEN_INSN(SELECTGTS, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_GT_U:
{
GEN_INSN(SELECTGTU, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_LE_S:
{
GEN_INSN(SELECTLES, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_LE_U:
{
GEN_INSN(SELECTLEU, res, cc->cmp_reg, const_one, const_zero);
break;
}
case INT_GE_S:
{
GEN_INSN(SELECTGES, res, cc->cmp_reg, const_one, const_zero);
break;
}
default: /* INT_GE_U */
{
GEN_INSN(SELECTGEU, res, cc->cmp_reg, const_one, const_zero);
break;
}
}
PUSH_I32(res);
return true;
fail:
return false;
}
bool
jit_compile_op_i32_compare(JitCompContext *cc, IntCond cond)
{
return jit_compile_op_compare_integer(cc, cond, false);
}
bool
jit_compile_op_i64_compare(JitCompContext *cc, IntCond cond)
{
return jit_compile_op_compare_integer(cc, cond, true);
}
static int32
float_cmp_eq(float f1, float f2)
{
if (isnan(f1) || isnan(f2))
return 0;
return f1 == f2;
}
static int32
float_cmp_ne(float f1, float f2)
{
if (isnan(f1) || isnan(f2))
return 1;
return f1 != f2;
}
static int32
double_cmp_eq(double d1, double d2)
{
if (isnan(d1) || isnan(d2))
return 0;
return d1 == d2;
}
static int32
double_cmp_ne(double d1, double d2)
{
if (isnan(d1) || isnan(d2))
return 1;
return d1 != d2;
}
static bool
jit_compile_op_compare_float_point(JitCompContext *cc, FloatCond cond,
JitReg lhs, JitReg rhs)
{
JitReg res, args[2], const_zero, const_one;
JitRegKind kind;
void *func;
if (cond == FLOAT_EQ || cond == FLOAT_NE) {
kind = jit_reg_kind(lhs);
if (cond == FLOAT_EQ)
func = (kind == JIT_REG_KIND_F32) ? (void *)float_cmp_eq
: (void *)double_cmp_eq;
else
func = (kind == JIT_REG_KIND_F32) ? (void *)float_cmp_ne
: (void *)double_cmp_ne;
res = jit_cc_new_reg_I32(cc);
args[0] = lhs;
args[1] = rhs;
if (!jit_emit_callnative(cc, func, res, args, 2)) {
goto fail;
}
}
else {
res = jit_cc_new_reg_I32(cc);
const_zero = NEW_CONST(I32, 0);
const_one = NEW_CONST(I32, 1);
switch (cond) {
case FLOAT_LT:
{
GEN_INSN(CMP, cc->cmp_reg, rhs, lhs);
GEN_INSN(SELECTGTS, res, cc->cmp_reg, const_one, const_zero);
break;
}
case FLOAT_GT:
{
GEN_INSN(CMP, cc->cmp_reg, lhs, rhs);
GEN_INSN(SELECTGTS, res, cc->cmp_reg, const_one, const_zero);
break;
}
case FLOAT_LE:
{
GEN_INSN(CMP, cc->cmp_reg, rhs, lhs);
GEN_INSN(SELECTGES, res, cc->cmp_reg, const_one, const_zero);
break;
}
case FLOAT_GE:
{
GEN_INSN(CMP, cc->cmp_reg, lhs, rhs);
GEN_INSN(SELECTGES, res, cc->cmp_reg, const_one, const_zero);
break;
}
default:
{
bh_assert(!"unknown FloatCond");
goto fail;
}
}
}
PUSH_I32(res);
return true;
fail:
return false;
}
bool
jit_compile_op_f32_compare(JitCompContext *cc, FloatCond cond)
{
JitReg res, const_zero, const_one;
JitReg lhs, rhs;
POP_F32(rhs);
POP_F32(lhs);
if (jit_reg_is_const_val(lhs) && jit_reg_is_const_val(rhs)) {
float32 lvalue = jit_cc_get_const_F32(cc, lhs);
float32 rvalue = jit_cc_get_const_F32(cc, rhs);
const_zero = NEW_CONST(I32, 0);
const_one = NEW_CONST(I32, 1);
switch (cond) {
case FLOAT_EQ:
{
res = (lvalue == rvalue) ? const_one : const_zero;
break;
}
case FLOAT_NE:
{
res = (lvalue != rvalue) ? const_one : const_zero;
break;
}
case FLOAT_LT:
{
res = (lvalue < rvalue) ? const_one : const_zero;
break;
}
case FLOAT_GT:
{
res = (lvalue > rvalue) ? const_one : const_zero;
break;
}
case FLOAT_LE:
{
res = (lvalue <= rvalue) ? const_one : const_zero;
break;
}
case FLOAT_GE:
{
res = (lvalue >= rvalue) ? const_one : const_zero;
break;
}
default:
{
bh_assert(!"unknown FloatCond");
goto fail;
}
}
PUSH_I32(res);
return true;
}
return jit_compile_op_compare_float_point(cc, cond, lhs, rhs);
fail:
return false;
}
bool
jit_compile_op_f64_compare(JitCompContext *cc, FloatCond cond)
{
JitReg res, const_zero, const_one;
JitReg lhs, rhs;
POP_F64(rhs);
POP_F64(lhs);
if (jit_reg_is_const_val(lhs) && jit_reg_is_const_val(rhs)) {
float64 lvalue = jit_cc_get_const_F64(cc, lhs);
float64 rvalue = jit_cc_get_const_F64(cc, rhs);
const_zero = NEW_CONST(I32, 0);
const_one = NEW_CONST(I32, 1);
switch (cond) {
case FLOAT_EQ:
{
res = (lvalue == rvalue) ? const_one : const_zero;
break;
}
case FLOAT_NE:
{
res = (lvalue != rvalue) ? const_one : const_zero;
break;
}
case FLOAT_LT:
{
res = (lvalue < rvalue) ? const_one : const_zero;
break;
}
case FLOAT_GT:
{
res = (lvalue > rvalue) ? const_one : const_zero;
break;
}
case FLOAT_LE:
{
res = (lvalue <= rvalue) ? const_one : const_zero;
break;
}
case FLOAT_GE:
{
res = (lvalue >= rvalue) ? const_one : const_zero;
break;
}
default:
{
bh_assert(!"unknown FloatCond");
goto fail;
}
}
PUSH_I32(res);
return true;
}
return jit_compile_op_compare_float_point(cc, cond, lhs, rhs);
fail:
return false;
}
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