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tcg-op.c
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tcg-op.c
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/*
* Tiny Code Generator for QEMU
*
* Copyright (c) 2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "tcg.h"
#include "tcg-op.h"
#include "trace-tcg.h"
#include "trace/mem.h"
/* Reduce the number of ifdefs below. This assumes that all uses of
TCGV_HIGH and TCGV_LOW are properly protected by a conditional that
the compiler can eliminate. */
#if TCG_TARGET_REG_BITS == 64
extern TCGv_i32 TCGV_LOW_link_error(TCGv_i64);
extern TCGv_i32 TCGV_HIGH_link_error(TCGv_i64);
#define TCGV_LOW TCGV_LOW_link_error
#define TCGV_HIGH TCGV_HIGH_link_error
#endif
/* Note that this is optimized for sequential allocation during translate.
Up to and including filling in the forward link immediately. We'll do
proper termination of the end of the list after we finish translation. */
static void tcg_emit_op(TCGContext *ctx, TCGOpcode opc, int args)
{
int oi = ctx->gen_next_op_idx;
int ni = oi + 1;
int pi = oi - 1;
tcg_debug_assert(oi < OPC_BUF_SIZE);
ctx->gen_op_buf[0].prev = oi;
ctx->gen_next_op_idx = ni;
ctx->gen_op_buf[oi] = (TCGOp){
.opc = opc,
.args = args,
.prev = pi,
.next = ni
};
}
void tcg_gen_op1(TCGContext *ctx, TCGOpcode opc, TCGArg a1)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 1 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 1;
ctx->gen_opparam_buf[pi] = a1;
tcg_emit_op(ctx, opc, pi);
}
void tcg_gen_op2(TCGContext *ctx, TCGOpcode opc, TCGArg a1, TCGArg a2)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 2 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 2;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
tcg_emit_op(ctx, opc, pi);
}
void tcg_gen_op3(TCGContext *ctx, TCGOpcode opc, TCGArg a1,
TCGArg a2, TCGArg a3)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 3 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 3;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
tcg_emit_op(ctx, opc, pi);
}
void tcg_gen_op4(TCGContext *ctx, TCGOpcode opc, TCGArg a1,
TCGArg a2, TCGArg a3, TCGArg a4)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 4 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 4;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
ctx->gen_opparam_buf[pi + 3] = a4;
tcg_emit_op(ctx, opc, pi);
}
void tcg_gen_op5(TCGContext *ctx, TCGOpcode opc, TCGArg a1,
TCGArg a2, TCGArg a3, TCGArg a4, TCGArg a5)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 5 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 5;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
ctx->gen_opparam_buf[pi + 3] = a4;
ctx->gen_opparam_buf[pi + 4] = a5;
tcg_emit_op(ctx, opc, pi);
}
void tcg_gen_op6(TCGContext *ctx, TCGOpcode opc, TCGArg a1, TCGArg a2,
TCGArg a3, TCGArg a4, TCGArg a5, TCGArg a6)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 6 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 6;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
ctx->gen_opparam_buf[pi + 3] = a4;
ctx->gen_opparam_buf[pi + 4] = a5;
ctx->gen_opparam_buf[pi + 5] = a6;
tcg_emit_op(ctx, opc, pi);
}
/* 32 bit ops */
void tcg_gen_addi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_add_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_subfi_i32(TCGv_i32 ret, int32_t arg1, TCGv_i32 arg2)
{
if (arg1 == 0 && TCG_TARGET_HAS_neg_i32) {
/* Don't recurse with tcg_gen_neg_i32. */
tcg_gen_op2_i32(INDEX_op_neg_i32, ret, arg2);
} else {
TCGv_i32 t0 = tcg_const_i32(arg1);
tcg_gen_sub_i32(ret, t0, arg2);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_subi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_sub_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_andi_i32(TCGv_i32 ret, TCGv_i32 arg1, uint32_t arg2)
{
TCGv_i32 t0;
/* Some cases can be optimized here. */
switch (arg2) {
case 0:
tcg_gen_movi_i32(ret, 0);
return;
case 0xffffffffu:
tcg_gen_mov_i32(ret, arg1);
return;
case 0xffu:
/* Don't recurse with tcg_gen_ext8u_i32. */
if (TCG_TARGET_HAS_ext8u_i32) {
tcg_gen_op2_i32(INDEX_op_ext8u_i32, ret, arg1);
return;
}
break;
case 0xffffu:
if (TCG_TARGET_HAS_ext16u_i32) {
tcg_gen_op2_i32(INDEX_op_ext16u_i32, ret, arg1);
return;
}
break;
}
t0 = tcg_const_i32(arg2);
tcg_gen_and_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
void tcg_gen_ori_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
/* Some cases can be optimized here. */
if (arg2 == -1) {
tcg_gen_movi_i32(ret, -1);
} else if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_or_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_xori_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
/* Some cases can be optimized here. */
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else if (arg2 == -1 && TCG_TARGET_HAS_not_i32) {
/* Don't recurse with tcg_gen_not_i32. */
tcg_gen_op2_i32(INDEX_op_not_i32, ret, arg1);
} else {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_xor_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_shli_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
{
tcg_debug_assert(arg2 < 32);
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_shl_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_shri_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
{
tcg_debug_assert(arg2 < 32);
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_shr_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_sari_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
{
tcg_debug_assert(arg2 < 32);
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_sar_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_brcond_i32(TCGCond cond, TCGv_i32 arg1, TCGv_i32 arg2, TCGLabel *l)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_br(l);
} else if (cond != TCG_COND_NEVER) {
tcg_gen_op4ii_i32(INDEX_op_brcond_i32, arg1, arg2, cond, label_arg(l));
}
}
void tcg_gen_brcondi_i32(TCGCond cond, TCGv_i32 arg1, int32_t arg2, TCGLabel *l)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_br(l);
} else if (cond != TCG_COND_NEVER) {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_brcond_i32(cond, arg1, t0, l);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_setcond_i32(TCGCond cond, TCGv_i32 ret,
TCGv_i32 arg1, TCGv_i32 arg2)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_movi_i32(ret, 1);
} else if (cond == TCG_COND_NEVER) {
tcg_gen_movi_i32(ret, 0);
} else {
tcg_gen_op4i_i32(INDEX_op_setcond_i32, ret, arg1, arg2, cond);
}
}
void tcg_gen_setcondi_i32(TCGCond cond, TCGv_i32 ret,
TCGv_i32 arg1, int32_t arg2)
{
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_setcond_i32(cond, ret, arg1, t0);
tcg_temp_free_i32(t0);
}
void tcg_gen_muli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_mul_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
void tcg_gen_div_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_div_i32) {
tcg_gen_op3_i32(INDEX_op_div_i32, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div2_i32) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_sari_i32(t0, arg1, 31);
tcg_gen_op5_i32(INDEX_op_div2_i32, ret, t0, arg1, t0, arg2);
tcg_temp_free_i32(t0);
} else {
gen_helper_div_i32(ret, arg1, arg2);
}
}
void tcg_gen_rem_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_rem_i32) {
tcg_gen_op3_i32(INDEX_op_rem_i32, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div_i32) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_op3_i32(INDEX_op_div_i32, t0, arg1, arg2);
tcg_gen_mul_i32(t0, t0, arg2);
tcg_gen_sub_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
} else if (TCG_TARGET_HAS_div2_i32) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_sari_i32(t0, arg1, 31);
tcg_gen_op5_i32(INDEX_op_div2_i32, t0, ret, arg1, t0, arg2);
tcg_temp_free_i32(t0);
} else {
gen_helper_rem_i32(ret, arg1, arg2);
}
}
void tcg_gen_divu_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_div_i32) {
tcg_gen_op3_i32(INDEX_op_divu_i32, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div2_i32) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_movi_i32(t0, 0);
tcg_gen_op5_i32(INDEX_op_divu2_i32, ret, t0, arg1, t0, arg2);
tcg_temp_free_i32(t0);
} else {
gen_helper_divu_i32(ret, arg1, arg2);
}
}
void tcg_gen_remu_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_rem_i32) {
tcg_gen_op3_i32(INDEX_op_remu_i32, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div_i32) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_op3_i32(INDEX_op_divu_i32, t0, arg1, arg2);
tcg_gen_mul_i32(t0, t0, arg2);
tcg_gen_sub_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
} else if (TCG_TARGET_HAS_div2_i32) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_movi_i32(t0, 0);
tcg_gen_op5_i32(INDEX_op_divu2_i32, t0, ret, arg1, t0, arg2);
tcg_temp_free_i32(t0);
} else {
gen_helper_remu_i32(ret, arg1, arg2);
}
}
void tcg_gen_andc_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_andc_i32) {
tcg_gen_op3_i32(INDEX_op_andc_i32, ret, arg1, arg2);
} else {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_not_i32(t0, arg2);
tcg_gen_and_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_eqv_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_eqv_i32) {
tcg_gen_op3_i32(INDEX_op_eqv_i32, ret, arg1, arg2);
} else {
tcg_gen_xor_i32(ret, arg1, arg2);
tcg_gen_not_i32(ret, ret);
}
}
void tcg_gen_nand_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_nand_i32) {
tcg_gen_op3_i32(INDEX_op_nand_i32, ret, arg1, arg2);
} else {
tcg_gen_and_i32(ret, arg1, arg2);
tcg_gen_not_i32(ret, ret);
}
}
void tcg_gen_nor_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_nor_i32) {
tcg_gen_op3_i32(INDEX_op_nor_i32, ret, arg1, arg2);
} else {
tcg_gen_or_i32(ret, arg1, arg2);
tcg_gen_not_i32(ret, ret);
}
}
void tcg_gen_orc_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_orc_i32) {
tcg_gen_op3_i32(INDEX_op_orc_i32, ret, arg1, arg2);
} else {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_not_i32(t0, arg2);
tcg_gen_or_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_rotl_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_rot_i32) {
tcg_gen_op3_i32(INDEX_op_rotl_i32, ret, arg1, arg2);
} else {
TCGv_i32 t0, t1;
t0 = tcg_temp_new_i32();
t1 = tcg_temp_new_i32();
tcg_gen_shl_i32(t0, arg1, arg2);
tcg_gen_subfi_i32(t1, 32, arg2);
tcg_gen_shr_i32(t1, arg1, t1);
tcg_gen_or_i32(ret, t0, t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
void tcg_gen_rotli_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
{
tcg_debug_assert(arg2 < 32);
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else if (TCG_TARGET_HAS_rot_i32) {
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_rotl_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
} else {
TCGv_i32 t0, t1;
t0 = tcg_temp_new_i32();
t1 = tcg_temp_new_i32();
tcg_gen_shli_i32(t0, arg1, arg2);
tcg_gen_shri_i32(t1, arg1, 32 - arg2);
tcg_gen_or_i32(ret, t0, t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
void tcg_gen_rotr_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_rot_i32) {
tcg_gen_op3_i32(INDEX_op_rotr_i32, ret, arg1, arg2);
} else {
TCGv_i32 t0, t1;
t0 = tcg_temp_new_i32();
t1 = tcg_temp_new_i32();
tcg_gen_shr_i32(t0, arg1, arg2);
tcg_gen_subfi_i32(t1, 32, arg2);
tcg_gen_shl_i32(t1, arg1, t1);
tcg_gen_or_i32(ret, t0, t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
void tcg_gen_rotri_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
{
tcg_debug_assert(arg2 < 32);
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
tcg_gen_rotli_i32(ret, arg1, 32 - arg2);
}
}
void tcg_gen_deposit_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2,
unsigned int ofs, unsigned int len)
{
uint32_t mask;
TCGv_i32 t1;
tcg_debug_assert(ofs < 32);
tcg_debug_assert(len <= 32);
tcg_debug_assert(ofs + len <= 32);
if (ofs == 0 && len == 32) {
tcg_gen_mov_i32(ret, arg2);
return;
}
if (TCG_TARGET_HAS_deposit_i32 && TCG_TARGET_deposit_i32_valid(ofs, len)) {
tcg_gen_op5ii_i32(INDEX_op_deposit_i32, ret, arg1, arg2, ofs, len);
return;
}
mask = (1u << len) - 1;
t1 = tcg_temp_new_i32();
if (ofs + len < 32) {
tcg_gen_andi_i32(t1, arg2, mask);
tcg_gen_shli_i32(t1, t1, ofs);
} else {
tcg_gen_shli_i32(t1, arg2, ofs);
}
tcg_gen_andi_i32(ret, arg1, ~(mask << ofs));
tcg_gen_or_i32(ret, ret, t1);
tcg_temp_free_i32(t1);
}
void tcg_gen_movcond_i32(TCGCond cond, TCGv_i32 ret, TCGv_i32 c1,
TCGv_i32 c2, TCGv_i32 v1, TCGv_i32 v2)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_mov_i32(ret, v1);
} else if (cond == TCG_COND_NEVER) {
tcg_gen_mov_i32(ret, v2);
} else if (TCG_TARGET_HAS_movcond_i32) {
tcg_gen_op6i_i32(INDEX_op_movcond_i32, ret, c1, c2, v1, v2, cond);
} else {
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_setcond_i32(cond, t0, c1, c2);
tcg_gen_neg_i32(t0, t0);
tcg_gen_and_i32(t1, v1, t0);
tcg_gen_andc_i32(ret, v2, t0);
tcg_gen_or_i32(ret, ret, t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
void tcg_gen_add2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al,
TCGv_i32 ah, TCGv_i32 bl, TCGv_i32 bh)
{
if (TCG_TARGET_HAS_add2_i32) {
tcg_gen_op6_i32(INDEX_op_add2_i32, rl, rh, al, ah, bl, bh);
} else {
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
tcg_gen_concat_i32_i64(t0, al, ah);
tcg_gen_concat_i32_i64(t1, bl, bh);
tcg_gen_add_i64(t0, t0, t1);
tcg_gen_extr_i64_i32(rl, rh, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_sub2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al,
TCGv_i32 ah, TCGv_i32 bl, TCGv_i32 bh)
{
if (TCG_TARGET_HAS_sub2_i32) {
tcg_gen_op6_i32(INDEX_op_sub2_i32, rl, rh, al, ah, bl, bh);
} else {
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
tcg_gen_concat_i32_i64(t0, al, ah);
tcg_gen_concat_i32_i64(t1, bl, bh);
tcg_gen_sub_i64(t0, t0, t1);
tcg_gen_extr_i64_i32(rl, rh, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_mulu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_mulu2_i32) {
tcg_gen_op4_i32(INDEX_op_mulu2_i32, rl, rh, arg1, arg2);
} else if (TCG_TARGET_HAS_muluh_i32) {
TCGv_i32 t = tcg_temp_new_i32();
tcg_gen_op3_i32(INDEX_op_mul_i32, t, arg1, arg2);
tcg_gen_op3_i32(INDEX_op_muluh_i32, rh, arg1, arg2);
tcg_gen_mov_i32(rl, t);
tcg_temp_free_i32(t);
} else {
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
tcg_gen_extu_i32_i64(t0, arg1);
tcg_gen_extu_i32_i64(t1, arg2);
tcg_gen_mul_i64(t0, t0, t1);
tcg_gen_extr_i64_i32(rl, rh, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_muls2_i32) {
tcg_gen_op4_i32(INDEX_op_muls2_i32, rl, rh, arg1, arg2);
} else if (TCG_TARGET_HAS_mulsh_i32) {
TCGv_i32 t = tcg_temp_new_i32();
tcg_gen_op3_i32(INDEX_op_mul_i32, t, arg1, arg2);
tcg_gen_op3_i32(INDEX_op_mulsh_i32, rh, arg1, arg2);
tcg_gen_mov_i32(rl, t);
tcg_temp_free_i32(t);
} else if (TCG_TARGET_REG_BITS == 32) {
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
TCGv_i32 t2 = tcg_temp_new_i32();
TCGv_i32 t3 = tcg_temp_new_i32();
tcg_gen_mulu2_i32(t0, t1, arg1, arg2);
/* Adjust for negative inputs. */
tcg_gen_sari_i32(t2, arg1, 31);
tcg_gen_sari_i32(t3, arg2, 31);
tcg_gen_and_i32(t2, t2, arg2);
tcg_gen_and_i32(t3, t3, arg1);
tcg_gen_sub_i32(rh, t1, t2);
tcg_gen_sub_i32(rh, rh, t3);
tcg_gen_mov_i32(rl, t0);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
tcg_temp_free_i32(t2);
tcg_temp_free_i32(t3);
} else {
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
tcg_gen_ext_i32_i64(t0, arg1);
tcg_gen_ext_i32_i64(t1, arg2);
tcg_gen_mul_i64(t0, t0, t1);
tcg_gen_extr_i64_i32(rl, rh, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_ext8s_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_ext8s_i32) {
tcg_gen_op2_i32(INDEX_op_ext8s_i32, ret, arg);
} else {
tcg_gen_shli_i32(ret, arg, 24);
tcg_gen_sari_i32(ret, ret, 24);
}
}
void tcg_gen_ext16s_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_ext16s_i32) {
tcg_gen_op2_i32(INDEX_op_ext16s_i32, ret, arg);
} else {
tcg_gen_shli_i32(ret, arg, 16);
tcg_gen_sari_i32(ret, ret, 16);
}
}
void tcg_gen_ext8u_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_ext8u_i32) {
tcg_gen_op2_i32(INDEX_op_ext8u_i32, ret, arg);
} else {
tcg_gen_andi_i32(ret, arg, 0xffu);
}
}
void tcg_gen_ext16u_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_ext16u_i32) {
tcg_gen_op2_i32(INDEX_op_ext16u_i32, ret, arg);
} else {
tcg_gen_andi_i32(ret, arg, 0xffffu);
}
}
/* Note: we assume the two high bytes are set to zero */
void tcg_gen_bswap16_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_bswap16_i32) {
tcg_gen_op2_i32(INDEX_op_bswap16_i32, ret, arg);
} else {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_ext8u_i32(t0, arg);
tcg_gen_shli_i32(t0, t0, 8);
tcg_gen_shri_i32(ret, arg, 8);
tcg_gen_or_i32(ret, ret, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_bswap32_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_bswap32_i32) {
tcg_gen_op2_i32(INDEX_op_bswap32_i32, ret, arg);
} else {
TCGv_i32 t0, t1;
t0 = tcg_temp_new_i32();
t1 = tcg_temp_new_i32();
tcg_gen_shli_i32(t0, arg, 24);
tcg_gen_andi_i32(t1, arg, 0x0000ff00);
tcg_gen_shli_i32(t1, t1, 8);
tcg_gen_or_i32(t0, t0, t1);
tcg_gen_shri_i32(t1, arg, 8);
tcg_gen_andi_i32(t1, t1, 0x0000ff00);
tcg_gen_or_i32(t0, t0, t1);
tcg_gen_shri_i32(t1, arg, 24);
tcg_gen_or_i32(ret, t0, t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
/* 64-bit ops */
#if TCG_TARGET_REG_BITS == 32
/* These are all inline for TCG_TARGET_REG_BITS == 64. */
void tcg_gen_discard_i64(TCGv_i64 arg)
{
tcg_gen_discard_i32(TCGV_LOW(arg));
tcg_gen_discard_i32(TCGV_HIGH(arg));
}
void tcg_gen_mov_i64(TCGv_i64 ret, TCGv_i64 arg)
{
tcg_gen_mov_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg));
}
void tcg_gen_movi_i64(TCGv_i64 ret, int64_t arg)
{
tcg_gen_movi_i32(TCGV_LOW(ret), arg);
tcg_gen_movi_i32(TCGV_HIGH(ret), arg >> 32);
}
void tcg_gen_ld8u_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_ld8u_i32(TCGV_LOW(ret), arg2, offset);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
}
void tcg_gen_ld8s_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_ld8s_i32(TCGV_LOW(ret), arg2, offset);
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_HIGH(ret), 31);
}
void tcg_gen_ld16u_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_ld16u_i32(TCGV_LOW(ret), arg2, offset);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
}
void tcg_gen_ld16s_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_ld16s_i32(TCGV_LOW(ret), arg2, offset);
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
}
void tcg_gen_ld32u_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_ld_i32(TCGV_LOW(ret), arg2, offset);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
}
void tcg_gen_ld32s_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_ld_i32(TCGV_LOW(ret), arg2, offset);
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
}
void tcg_gen_ld_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
/* Since arg2 and ret have different types,
they cannot be the same temporary */
#ifdef HOST_WORDS_BIGENDIAN
tcg_gen_ld_i32(TCGV_HIGH(ret), arg2, offset);
tcg_gen_ld_i32(TCGV_LOW(ret), arg2, offset + 4);
#else
tcg_gen_ld_i32(TCGV_LOW(ret), arg2, offset);
tcg_gen_ld_i32(TCGV_HIGH(ret), arg2, offset + 4);
#endif
}
void tcg_gen_st_i64(TCGv_i64 arg1, TCGv_ptr arg2, tcg_target_long offset)
{
#ifdef HOST_WORDS_BIGENDIAN
tcg_gen_st_i32(TCGV_HIGH(arg1), arg2, offset);
tcg_gen_st_i32(TCGV_LOW(arg1), arg2, offset + 4);
#else
tcg_gen_st_i32(TCGV_LOW(arg1), arg2, offset);
tcg_gen_st_i32(TCGV_HIGH(arg1), arg2, offset + 4);
#endif
}
void tcg_gen_and_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
tcg_gen_and_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_and_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
}
void tcg_gen_or_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
tcg_gen_or_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_or_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
}
void tcg_gen_xor_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
tcg_gen_xor_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_xor_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
}
void tcg_gen_shl_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
gen_helper_shl_i64(ret, arg1, arg2);
}
void tcg_gen_shr_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
gen_helper_shr_i64(ret, arg1, arg2);
}
void tcg_gen_sar_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
gen_helper_sar_i64(ret, arg1, arg2);
}
void tcg_gen_mul_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
TCGv_i64 t0;
TCGv_i32 t1;
t0 = tcg_temp_new_i64();
t1 = tcg_temp_new_i32();
tcg_gen_mulu2_i32(TCGV_LOW(t0), TCGV_HIGH(t0),
TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_mul_i32(t1, TCGV_LOW(arg1), TCGV_HIGH(arg2));
tcg_gen_add_i32(TCGV_HIGH(t0), TCGV_HIGH(t0), t1);
tcg_gen_mul_i32(t1, TCGV_HIGH(arg1), TCGV_LOW(arg2));
tcg_gen_add_i32(TCGV_HIGH(t0), TCGV_HIGH(t0), t1);
tcg_gen_mov_i64(ret, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i32(t1);
}
#endif /* TCG_TARGET_REG_SIZE == 32 */
void tcg_gen_addi_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else {
TCGv_i64 t0 = tcg_const_i64(arg2);
tcg_gen_add_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_subfi_i64(TCGv_i64 ret, int64_t arg1, TCGv_i64 arg2)
{
if (arg1 == 0 && TCG_TARGET_HAS_neg_i64) {
/* Don't recurse with tcg_gen_neg_i64. */
tcg_gen_op2_i64(INDEX_op_neg_i64, ret, arg2);
} else {
TCGv_i64 t0 = tcg_const_i64(arg1);
tcg_gen_sub_i64(ret, t0, arg2);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_subi_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else {
TCGv_i64 t0 = tcg_const_i64(arg2);
tcg_gen_sub_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_andi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2)
{
TCGv_i64 t0;
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_andi_i32(TCGV_LOW(ret), TCGV_LOW(arg1), arg2);
tcg_gen_andi_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), arg2 >> 32);
return;
}
/* Some cases can be optimized here. */
switch (arg2) {
case 0:
tcg_gen_movi_i64(ret, 0);
return;
case 0xffffffffffffffffull:
tcg_gen_mov_i64(ret, arg1);
return;
case 0xffull:
/* Don't recurse with tcg_gen_ext8u_i64. */
if (TCG_TARGET_HAS_ext8u_i64) {
tcg_gen_op2_i64(INDEX_op_ext8u_i64, ret, arg1);
return;
}
break;
case 0xffffu:
if (TCG_TARGET_HAS_ext16u_i64) {
tcg_gen_op2_i64(INDEX_op_ext16u_i64, ret, arg1);
return;
}
break;
case 0xffffffffull:
if (TCG_TARGET_HAS_ext32u_i64) {
tcg_gen_op2_i64(INDEX_op_ext32u_i64, ret, arg1);
return;
}
break;
}
t0 = tcg_const_i64(arg2);
tcg_gen_and_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
void tcg_gen_ori_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_ori_i32(TCGV_LOW(ret), TCGV_LOW(arg1), arg2);
tcg_gen_ori_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), arg2 >> 32);
return;
}
/* Some cases can be optimized here. */
if (arg2 == -1) {
tcg_gen_movi_i64(ret, -1);
} else if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else {
TCGv_i64 t0 = tcg_const_i64(arg2);
tcg_gen_or_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_xori_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_xori_i32(TCGV_LOW(ret), TCGV_LOW(arg1), arg2);
tcg_gen_xori_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), arg2 >> 32);
return;
}
/* Some cases can be optimized here. */
if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else if (arg2 == -1 && TCG_TARGET_HAS_not_i64) {