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qemu-e2k/tcg/tcg-op.c
Richard Henderson f85b1fc4a0 tcg: Link branches to the labels 
This allows us to easily find all branches that use a label.
Since 'refs' is only tested vs zero, remove it and test for
an empty list instead.  Drop the use of bitfields, which had
been used to pack refs into a single 32-bit word.

Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05 13:44:07 -08:00

3713 lines
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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 "exec/exec-all.h"
#include "tcg/tcg.h"
#include "tcg/tcg-op.h"
#include "tcg/tcg-mo.h"
#include "exec/plugin-gen.h"
#include "tcg-internal.h"
void tcg_gen_op1(TCGOpcode opc, TCGArg a1)
{
TCGOp *op = tcg_emit_op(opc, 1);
op->args[0] = a1;
}
void tcg_gen_op2(TCGOpcode opc, TCGArg a1, TCGArg a2)
{
TCGOp *op = tcg_emit_op(opc, 2);
op->args[0] = a1;
op->args[1] = a2;
}
void tcg_gen_op3(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3)
{
TCGOp *op = tcg_emit_op(opc, 3);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
}
void tcg_gen_op4(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4)
{
TCGOp *op = tcg_emit_op(opc, 4);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
op->args[3] = a4;
}
void tcg_gen_op5(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3,
TCGArg a4, TCGArg a5)
{
TCGOp *op = tcg_emit_op(opc, 5);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
op->args[3] = a4;
op->args[4] = a5;
}
void tcg_gen_op6(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3,
TCGArg a4, TCGArg a5, TCGArg a6)
{
TCGOp *op = tcg_emit_op(opc, 6);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
op->args[3] = a4;
op->args[4] = a5;
op->args[5] = a6;
}
/* Generic ops. */
static void add_last_as_label_use(TCGLabel *l)
{
TCGLabelUse *u = tcg_malloc(sizeof(TCGLabelUse));
u->op = tcg_last_op();
QSIMPLEQ_INSERT_TAIL(&l->branches, u, next);
}
void tcg_gen_br(TCGLabel *l)
{
tcg_gen_op1(INDEX_op_br, label_arg(l));
add_last_as_label_use(l);
}
void tcg_gen_mb(TCGBar mb_type)
{
if (tcg_ctx->gen_tb->cflags & CF_PARALLEL) {
tcg_gen_op1(INDEX_op_mb, mb_type);
}
}
/* 32 bit ops */
void tcg_gen_movi_i32(TCGv_i32 ret, int32_t arg)
{
tcg_gen_mov_i32(ret, tcg_constant_i32(arg));
}
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 {
tcg_gen_add_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
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 {
tcg_gen_sub_i32(ret, tcg_constant_i32(arg1), arg2);
}
}
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 {
tcg_gen_sub_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
void tcg_gen_andi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
/* Some cases can be optimized here. */
switch (arg2) {
case 0:
tcg_gen_movi_i32(ret, 0);
return;
case -1:
tcg_gen_mov_i32(ret, arg1);
return;
case 0xff:
/* 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 0xffff:
if (TCG_TARGET_HAS_ext16u_i32) {
tcg_gen_op2_i32(INDEX_op_ext16u_i32, ret, arg1);
return;
}
break;
}
tcg_gen_and_i32(ret, arg1, tcg_constant_i32(arg2));
}
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 {
tcg_gen_or_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
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 {
tcg_gen_xor_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
void tcg_gen_shli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 32);
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
tcg_gen_shl_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
void tcg_gen_shri_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 32);
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
tcg_gen_shr_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
void tcg_gen_sari_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 32);
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else {
tcg_gen_sar_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
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));
add_last_as_label_use(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) {
tcg_gen_brcond_i32(cond, arg1, tcg_constant_i32(arg2), l);
}
}
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)
{
tcg_gen_setcond_i32(cond, ret, arg1, tcg_constant_i32(arg2));
}
void tcg_gen_muli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
{
if (arg2 == 0) {
tcg_gen_movi_i32(ret, 0);
} else if (is_power_of_2(arg2)) {
tcg_gen_shli_i32(ret, arg1, ctz32(arg2));
} else {
tcg_gen_mul_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
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_ebb_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_ebb_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_ebb_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_ebb_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_ebb_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_ebb_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_ebb_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_ebb_new_i32();
tcg_gen_not_i32(t0, arg2);
tcg_gen_or_i32(ret, arg1, t0);
tcg_temp_free_i32(t0);
}
}
void tcg_gen_clz_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_clz_i32) {
tcg_gen_op3_i32(INDEX_op_clz_i32, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_clz_i64) {
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 t2 = tcg_temp_ebb_new_i64();
tcg_gen_extu_i32_i64(t1, arg1);
tcg_gen_extu_i32_i64(t2, arg2);
tcg_gen_addi_i64(t2, t2, 32);
tcg_gen_clz_i64(t1, t1, t2);
tcg_gen_extrl_i64_i32(ret, t1);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
tcg_gen_subi_i32(ret, ret, 32);
} else {
gen_helper_clz_i32(ret, arg1, arg2);
}
}
void tcg_gen_clzi_i32(TCGv_i32 ret, TCGv_i32 arg1, uint32_t arg2)
{
tcg_gen_clz_i32(ret, arg1, tcg_constant_i32(arg2));
}
void tcg_gen_ctz_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_HAS_ctz_i32) {
tcg_gen_op3_i32(INDEX_op_ctz_i32, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_ctz_i64) {
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 t2 = tcg_temp_ebb_new_i64();
tcg_gen_extu_i32_i64(t1, arg1);
tcg_gen_extu_i32_i64(t2, arg2);
tcg_gen_ctz_i64(t1, t1, t2);
tcg_gen_extrl_i64_i32(ret, t1);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
} else if (TCG_TARGET_HAS_ctpop_i32
|| TCG_TARGET_HAS_ctpop_i64
|| TCG_TARGET_HAS_clz_i32
|| TCG_TARGET_HAS_clz_i64) {
TCGv_i32 z, t = tcg_temp_ebb_new_i32();
if (TCG_TARGET_HAS_ctpop_i32 || TCG_TARGET_HAS_ctpop_i64) {
tcg_gen_subi_i32(t, arg1, 1);
tcg_gen_andc_i32(t, t, arg1);
tcg_gen_ctpop_i32(t, t);
} else {
/* Since all non-x86 hosts have clz(0) == 32, don't fight it. */
tcg_gen_neg_i32(t, arg1);
tcg_gen_and_i32(t, t, arg1);
tcg_gen_clzi_i32(t, t, 32);
tcg_gen_xori_i32(t, t, 31);
}
z = tcg_constant_i32(0);
tcg_gen_movcond_i32(TCG_COND_EQ, ret, arg1, z, arg2, t);
tcg_temp_free_i32(t);
} else {
gen_helper_ctz_i32(ret, arg1, arg2);
}
}
void tcg_gen_ctzi_i32(TCGv_i32 ret, TCGv_i32 arg1, uint32_t arg2)
{
if (!TCG_TARGET_HAS_ctz_i32 && TCG_TARGET_HAS_ctpop_i32 && arg2 == 32) {
/* This equivalence has the advantage of not requiring a fixup. */
TCGv_i32 t = tcg_temp_ebb_new_i32();
tcg_gen_subi_i32(t, arg1, 1);
tcg_gen_andc_i32(t, t, arg1);
tcg_gen_ctpop_i32(ret, t);
tcg_temp_free_i32(t);
} else {
tcg_gen_ctz_i32(ret, arg1, tcg_constant_i32(arg2));
}
}
void tcg_gen_clrsb_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_clz_i32) {
TCGv_i32 t = tcg_temp_ebb_new_i32();
tcg_gen_sari_i32(t, arg, 31);
tcg_gen_xor_i32(t, t, arg);
tcg_gen_clzi_i32(t, t, 32);
tcg_gen_subi_i32(ret, t, 1);
tcg_temp_free_i32(t);
} else {
gen_helper_clrsb_i32(ret, arg);
}
}
void tcg_gen_ctpop_i32(TCGv_i32 ret, TCGv_i32 arg1)
{
if (TCG_TARGET_HAS_ctpop_i32) {
tcg_gen_op2_i32(INDEX_op_ctpop_i32, ret, arg1);
} else if (TCG_TARGET_HAS_ctpop_i64) {
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_extu_i32_i64(t, arg1);
tcg_gen_ctpop_i64(t, t);
tcg_gen_extrl_i64_i32(ret, t);
tcg_temp_free_i64(t);
} else {
gen_helper_ctpop_i32(ret, arg1);
}
}
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_ebb_new_i32();
t1 = tcg_temp_ebb_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, int32_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 32);
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i32(ret, arg1);
} else if (TCG_TARGET_HAS_rot_i32) {
tcg_gen_rotl_i32(ret, arg1, tcg_constant_i32(arg2));
} else {
TCGv_i32 t0, t1;
t0 = tcg_temp_ebb_new_i32();
t1 = tcg_temp_ebb_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_ebb_new_i32();
t1 = tcg_temp_ebb_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, int32_t arg2)
{
tcg_debug_assert(arg2 >= 0 && 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 > 0);
tcg_debug_assert(len <= 32);
tcg_debug_assert(ofs + len <= 32);
if (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;
}
t1 = tcg_temp_ebb_new_i32();
if (TCG_TARGET_HAS_extract2_i32) {
if (ofs + len == 32) {
tcg_gen_shli_i32(t1, arg1, len);
tcg_gen_extract2_i32(ret, t1, arg2, len);
goto done;
}
if (ofs == 0) {
tcg_gen_extract2_i32(ret, arg1, arg2, len);
tcg_gen_rotli_i32(ret, ret, len);
goto done;
}
}
mask = (1u << len) - 1;
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);
done:
tcg_temp_free_i32(t1);
}
void tcg_gen_deposit_z_i32(TCGv_i32 ret, TCGv_i32 arg,
unsigned int ofs, unsigned int len)
{
tcg_debug_assert(ofs < 32);
tcg_debug_assert(len > 0);
tcg_debug_assert(len <= 32);
tcg_debug_assert(ofs + len <= 32);
if (ofs + len == 32) {
tcg_gen_shli_i32(ret, arg, ofs);
} else if (ofs == 0) {
tcg_gen_andi_i32(ret, arg, (1u << len) - 1);
} else if (TCG_TARGET_HAS_deposit_i32
&& TCG_TARGET_deposit_i32_valid(ofs, len)) {
TCGv_i32 zero = tcg_constant_i32(0);
tcg_gen_op5ii_i32(INDEX_op_deposit_i32, ret, zero, arg, ofs, len);
} else {
/* To help two-operand hosts we prefer to zero-extend first,
which allows ARG to stay live. */
switch (len) {
case 16:
if (TCG_TARGET_HAS_ext16u_i32) {
tcg_gen_ext16u_i32(ret, arg);
tcg_gen_shli_i32(ret, ret, ofs);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8u_i32) {
tcg_gen_ext8u_i32(ret, arg);
tcg_gen_shli_i32(ret, ret, ofs);
return;
}
break;
}
/* Otherwise prefer zero-extension over AND for code size. */
switch (ofs + len) {
case 16:
if (TCG_TARGET_HAS_ext16u_i32) {
tcg_gen_shli_i32(ret, arg, ofs);
tcg_gen_ext16u_i32(ret, ret);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8u_i32) {
tcg_gen_shli_i32(ret, arg, ofs);
tcg_gen_ext8u_i32(ret, ret);
return;
}
break;
}
tcg_gen_andi_i32(ret, arg, (1u << len) - 1);
tcg_gen_shli_i32(ret, ret, ofs);
}
}
void tcg_gen_extract_i32(TCGv_i32 ret, TCGv_i32 arg,
unsigned int ofs, unsigned int len)
{
tcg_debug_assert(ofs < 32);
tcg_debug_assert(len > 0);
tcg_debug_assert(len <= 32);
tcg_debug_assert(ofs + len <= 32);
/* Canonicalize certain special cases, even if extract is supported. */
if (ofs + len == 32) {
tcg_gen_shri_i32(ret, arg, 32 - len);
return;
}
if (ofs == 0) {
tcg_gen_andi_i32(ret, arg, (1u << len) - 1);
return;
}
if (TCG_TARGET_HAS_extract_i32
&& TCG_TARGET_extract_i32_valid(ofs, len)) {
tcg_gen_op4ii_i32(INDEX_op_extract_i32, ret, arg, ofs, len);
return;
}
/* Assume that zero-extension, if available, is cheaper than a shift. */
switch (ofs + len) {
case 16:
if (TCG_TARGET_HAS_ext16u_i32) {
tcg_gen_ext16u_i32(ret, arg);
tcg_gen_shri_i32(ret, ret, ofs);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8u_i32) {
tcg_gen_ext8u_i32(ret, arg);
tcg_gen_shri_i32(ret, ret, ofs);
return;
}
break;
}
/* ??? Ideally we'd know what values are available for immediate AND.
Assume that 8 bits are available, plus the special case of 16,
so that we get ext8u, ext16u. */
switch (len) {
case 1 ... 8: case 16:
tcg_gen_shri_i32(ret, arg, ofs);
tcg_gen_andi_i32(ret, ret, (1u << len) - 1);
break;
default:
tcg_gen_shli_i32(ret, arg, 32 - len - ofs);
tcg_gen_shri_i32(ret, ret, 32 - len);
break;
}
}
void tcg_gen_sextract_i32(TCGv_i32 ret, TCGv_i32 arg,
unsigned int ofs, unsigned int len)
{
tcg_debug_assert(ofs < 32);
tcg_debug_assert(len > 0);
tcg_debug_assert(len <= 32);
tcg_debug_assert(ofs + len <= 32);
/* Canonicalize certain special cases, even if extract is supported. */
if (ofs + len == 32) {
tcg_gen_sari_i32(ret, arg, 32 - len);
return;
}
if (ofs == 0) {
switch (len) {
case 16:
tcg_gen_ext16s_i32(ret, arg);
return;
case 8:
tcg_gen_ext8s_i32(ret, arg);
return;
}
}
if (TCG_TARGET_HAS_sextract_i32
&& TCG_TARGET_extract_i32_valid(ofs, len)) {
tcg_gen_op4ii_i32(INDEX_op_sextract_i32, ret, arg, ofs, len);
return;
}
/* Assume that sign-extension, if available, is cheaper than a shift. */
switch (ofs + len) {
case 16:
if (TCG_TARGET_HAS_ext16s_i32) {
tcg_gen_ext16s_i32(ret, arg);
tcg_gen_sari_i32(ret, ret, ofs);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8s_i32) {
tcg_gen_ext8s_i32(ret, arg);
tcg_gen_sari_i32(ret, ret, ofs);
return;
}
break;
}
switch (len) {
case 16:
if (TCG_TARGET_HAS_ext16s_i32) {
tcg_gen_shri_i32(ret, arg, ofs);
tcg_gen_ext16s_i32(ret, ret);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8s_i32) {
tcg_gen_shri_i32(ret, arg, ofs);
tcg_gen_ext8s_i32(ret, ret);
return;
}
break;
}
tcg_gen_shli_i32(ret, arg, 32 - len - ofs);
tcg_gen_sari_i32(ret, ret, 32 - len);
}
/*
* Extract 32-bits from a 64-bit input, ah:al, starting from ofs.
* Unlike tcg_gen_extract_i32 above, len is fixed at 32.
*/
void tcg_gen_extract2_i32(TCGv_i32 ret, TCGv_i32 al, TCGv_i32 ah,
unsigned int ofs)
{
tcg_debug_assert(ofs <= 32);
if (ofs == 0) {
tcg_gen_mov_i32(ret, al);
} else if (ofs == 32) {
tcg_gen_mov_i32(ret, ah);
} else if (al == ah) {
tcg_gen_rotri_i32(ret, al, ofs);
} else if (TCG_TARGET_HAS_extract2_i32) {
tcg_gen_op4i_i32(INDEX_op_extract2_i32, ret, al, ah, ofs);
} else {
TCGv_i32 t0 = tcg_temp_ebb_new_i32();
tcg_gen_shri_i32(t0, al, ofs);
tcg_gen_deposit_i32(ret, t0, ah, 32 - ofs, ofs);
tcg_temp_free_i32(t0);
}
}
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_ebb_new_i32();
TCGv_i32 t1 = tcg_temp_ebb_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_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_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_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_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_ebb_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 if (TCG_TARGET_REG_BITS == 64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_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);
} else {
qemu_build_not_reached();
}
}
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_ebb_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_ebb_new_i32();
TCGv_i32 t1 = tcg_temp_ebb_new_i32();
TCGv_i32 t2 = tcg_temp_ebb_new_i32();
TCGv_i32 t3 = tcg_temp_ebb_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_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_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_mulsu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
TCGv_i32 t0 = tcg_temp_ebb_new_i32();
TCGv_i32 t1 = tcg_temp_ebb_new_i32();
TCGv_i32 t2 = tcg_temp_ebb_new_i32();
tcg_gen_mulu2_i32(t0, t1, arg1, arg2);
/* Adjust for negative input for the signed arg1. */
tcg_gen_sari_i32(t2, arg1, 31);
tcg_gen_and_i32(t2, t2, arg2);
tcg_gen_sub_i32(rh, t1, t2);
tcg_gen_mov_i32(rl, t0);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
tcg_temp_free_i32(t2);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
tcg_gen_ext_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_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);
}
}
void tcg_gen_bswap16_i32(TCGv_i32 ret, TCGv_i32 arg, int flags)
{
/* Only one extension flag may be present. */
tcg_debug_assert(!(flags & TCG_BSWAP_OS) || !(flags & TCG_BSWAP_OZ));
if (TCG_TARGET_HAS_bswap16_i32) {
tcg_gen_op3i_i32(INDEX_op_bswap16_i32, ret, arg, flags);
} else {
TCGv_i32 t0 = tcg_temp_ebb_new_i32();
TCGv_i32 t1 = tcg_temp_ebb_new_i32();
tcg_gen_shri_i32(t0, arg, 8);
if (!(flags & TCG_BSWAP_IZ)) {
tcg_gen_ext8u_i32(t0, t0);
}
if (flags & TCG_BSWAP_OS) {
tcg_gen_shli_i32(t1, arg, 24);
tcg_gen_sari_i32(t1, t1, 16);
} else if (flags & TCG_BSWAP_OZ) {
tcg_gen_ext8u_i32(t1, arg);
tcg_gen_shli_i32(t1, t1, 8);
} else {
tcg_gen_shli_i32(t1, arg, 8);
}
tcg_gen_or_i32(ret, t0, t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
void tcg_gen_bswap32_i32(TCGv_i32 ret, TCGv_i32 arg)
{
if (TCG_TARGET_HAS_bswap32_i32) {
tcg_gen_op3i_i32(INDEX_op_bswap32_i32, ret, arg, 0);
} else {
TCGv_i32 t0 = tcg_temp_ebb_new_i32();
TCGv_i32 t1 = tcg_temp_ebb_new_i32();
TCGv_i32 t2 = tcg_constant_i32(0x00ff00ff);
/* arg = abcd */
tcg_gen_shri_i32(t0, arg, 8); /* t0 = .abc */
tcg_gen_and_i32(t1, arg, t2); /* t1 = .b.d */
tcg_gen_and_i32(t0, t0, t2); /* t0 = .a.c */
tcg_gen_shli_i32(t1, t1, 8); /* t1 = b.d. */
tcg_gen_or_i32(ret, t0, t1); /* ret = badc */
tcg_gen_shri_i32(t0, ret, 16); /* t0 = ..ba */
tcg_gen_shli_i32(t1, ret, 16); /* t1 = dc.. */
tcg_gen_or_i32(ret, t0, t1); /* ret = dcba */
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
}
}
void tcg_gen_hswap_i32(TCGv_i32 ret, TCGv_i32 arg)
{
/* Swapping 2 16-bit elements is a rotate. */
tcg_gen_rotli_i32(ret, arg, 16);
}
void tcg_gen_smin_i32(TCGv_i32 ret, TCGv_i32 a, TCGv_i32 b)
{
tcg_gen_movcond_i32(TCG_COND_LT, ret, a, b, a, b);
}
void tcg_gen_umin_i32(TCGv_i32 ret, TCGv_i32 a, TCGv_i32 b)
{
tcg_gen_movcond_i32(TCG_COND_LTU, ret, a, b, a, b);
}
void tcg_gen_smax_i32(TCGv_i32 ret, TCGv_i32 a, TCGv_i32 b)
{
tcg_gen_movcond_i32(TCG_COND_LT, ret, a, b, b, a);
}
void tcg_gen_umax_i32(TCGv_i32 ret, TCGv_i32 a, TCGv_i32 b)
{
tcg_gen_movcond_i32(TCG_COND_LTU, ret, a, b, b, a);
}
void tcg_gen_abs_i32(TCGv_i32 ret, TCGv_i32 a)
{
TCGv_i32 t = tcg_temp_ebb_new_i32();
tcg_gen_sari_i32(t, a, 31);
tcg_gen_xor_i32(ret, a, t);
tcg_gen_sub_i32(ret, ret, t);
tcg_temp_free_i32(t);
}
/* 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)
{
TCGTemp *ts = tcgv_i64_temp(arg);
/* Canonicalize TCGv_i64 TEMP_CONST into TCGv_i32 TEMP_CONST. */
if (ts->kind == TEMP_CONST) {
tcg_gen_movi_i64(ret, ts->val);
} else {
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_LOW(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 */
#if HOST_BIG_ENDIAN
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_st8_i64(TCGv_i64 arg1, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_st8_i32(TCGV_LOW(arg1), arg2, offset);
}
void tcg_gen_st16_i64(TCGv_i64 arg1, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_st16_i32(TCGV_LOW(arg1), arg2, offset);
}
void tcg_gen_st32_i64(TCGv_i64 arg1, TCGv_ptr arg2, tcg_target_long offset)
{
tcg_gen_st_i32(TCGV_LOW(arg1), arg2, offset);
}
void tcg_gen_st_i64(TCGv_i64 arg1, TCGv_ptr arg2, tcg_target_long offset)
{
#if HOST_BIG_ENDIAN
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_add_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
tcg_gen_add2_i32(TCGV_LOW(ret), TCGV_HIGH(ret), TCGV_LOW(arg1),
TCGV_HIGH(arg1), TCGV_LOW(arg2), TCGV_HIGH(arg2));
}
void tcg_gen_sub_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
tcg_gen_sub2_i32(TCGV_LOW(ret), TCGV_HIGH(ret), TCGV_LOW(arg1),
TCGV_HIGH(arg1), TCGV_LOW(arg2), TCGV_HIGH(arg2));
}
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_ebb_new_i64();
t1 = tcg_temp_ebb_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);
}
#else
void tcg_gen_movi_i64(TCGv_i64 ret, int64_t arg)
{
tcg_gen_mov_i64(ret, tcg_constant_i64(arg));
}
#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 if (TCG_TARGET_REG_BITS == 64) {
tcg_gen_add_i64(ret, arg1, tcg_constant_i64(arg2));
} else {
tcg_gen_add2_i32(TCGV_LOW(ret), TCGV_HIGH(ret),
TCGV_LOW(arg1), TCGV_HIGH(arg1),
tcg_constant_i32(arg2), tcg_constant_i32(arg2 >> 32));
}
}
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 if (TCG_TARGET_REG_BITS == 64) {
tcg_gen_sub_i64(ret, tcg_constant_i64(arg1), arg2);
} else {
tcg_gen_sub2_i32(TCGV_LOW(ret), TCGV_HIGH(ret),
tcg_constant_i32(arg1), tcg_constant_i32(arg1 >> 32),
TCGV_LOW(arg2), TCGV_HIGH(arg2));
}
}
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 if (TCG_TARGET_REG_BITS == 64) {
tcg_gen_sub_i64(ret, arg1, tcg_constant_i64(arg2));
} else {
tcg_gen_sub2_i32(TCGV_LOW(ret), TCGV_HIGH(ret),
TCGV_LOW(arg1), TCGV_HIGH(arg1),
tcg_constant_i32(arg2), tcg_constant_i32(arg2 >> 32));
}
}
void tcg_gen_andi_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
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 -1:
tcg_gen_mov_i64(ret, arg1);
return;
case 0xff:
/* 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 0xffff:
if (TCG_TARGET_HAS_ext16u_i64) {
tcg_gen_op2_i64(INDEX_op_ext16u_i64, ret, arg1);
return;
}
break;
case 0xffffffffu:
if (TCG_TARGET_HAS_ext32u_i64) {
tcg_gen_op2_i64(INDEX_op_ext32u_i64, ret, arg1);
return;
}
break;
}
tcg_gen_and_i64(ret, arg1, tcg_constant_i64(arg2));
}
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 {
tcg_gen_or_i64(ret, arg1, tcg_constant_i64(arg2));
}
}
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) {
/* Don't recurse with tcg_gen_not_i64. */
tcg_gen_op2_i64(INDEX_op_not_i64, ret, arg1);
} else {
tcg_gen_xor_i64(ret, arg1, tcg_constant_i64(arg2));
}
}
static inline void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1,
unsigned c, bool right, bool arith)
{
tcg_debug_assert(c < 64);
if (c == 0) {
tcg_gen_mov_i32(TCGV_LOW(ret), TCGV_LOW(arg1));
tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1));
} else if (c >= 32) {
c -= 32;
if (right) {
if (arith) {
tcg_gen_sari_i32(TCGV_LOW(ret), TCGV_HIGH(arg1), c);
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), 31);
} else {
tcg_gen_shri_i32(TCGV_LOW(ret), TCGV_HIGH(arg1), c);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
}
} else {
tcg_gen_shli_i32(TCGV_HIGH(ret), TCGV_LOW(arg1), c);
tcg_gen_movi_i32(TCGV_LOW(ret), 0);
}
} else if (right) {
if (TCG_TARGET_HAS_extract2_i32) {
tcg_gen_extract2_i32(TCGV_LOW(ret),
TCGV_LOW(arg1), TCGV_HIGH(arg1), c);
} else {
tcg_gen_shri_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c);
tcg_gen_deposit_i32(TCGV_LOW(ret), TCGV_LOW(ret),
TCGV_HIGH(arg1), 32 - c, c);
}
if (arith) {
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c);
} else {
tcg_gen_shri_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c);
}
} else {
if (TCG_TARGET_HAS_extract2_i32) {
tcg_gen_extract2_i32(TCGV_HIGH(ret),
TCGV_LOW(arg1), TCGV_HIGH(arg1), 32 - c);
} else {
TCGv_i32 t0 = tcg_temp_ebb_new_i32();
tcg_gen_shri_i32(t0, TCGV_LOW(arg1), 32 - c);
tcg_gen_deposit_i32(TCGV_HIGH(ret), t0,
TCGV_HIGH(arg1), c, 32 - c);
tcg_temp_free_i32(t0);
}
tcg_gen_shli_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c);
}
}
void tcg_gen_shli_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 64);
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_shifti_i64(ret, arg1, arg2, 0, 0);
} else if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else {
tcg_gen_shl_i64(ret, arg1, tcg_constant_i64(arg2));
}
}
void tcg_gen_shri_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 64);
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_shifti_i64(ret, arg1, arg2, 1, 0);
} else if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else {
tcg_gen_shr_i64(ret, arg1, tcg_constant_i64(arg2));
}
}
void tcg_gen_sari_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 64);
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_shifti_i64(ret, arg1, arg2, 1, 1);
} else if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else {
tcg_gen_sar_i64(ret, arg1, tcg_constant_i64(arg2));
}
}
void tcg_gen_brcond_i64(TCGCond cond, TCGv_i64 arg1, TCGv_i64 arg2, TCGLabel *l)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_br(l);
} else if (cond != TCG_COND_NEVER) {
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_op6ii_i32(INDEX_op_brcond2_i32, TCGV_LOW(arg1),
TCGV_HIGH(arg1), TCGV_LOW(arg2),
TCGV_HIGH(arg2), cond, label_arg(l));
} else {
tcg_gen_op4ii_i64(INDEX_op_brcond_i64, arg1, arg2, cond,
label_arg(l));
}
add_last_as_label_use(l);
}
}
void tcg_gen_brcondi_i64(TCGCond cond, TCGv_i64 arg1, int64_t arg2, TCGLabel *l)
{
if (TCG_TARGET_REG_BITS == 64) {
tcg_gen_brcond_i64(cond, arg1, tcg_constant_i64(arg2), l);
} else if (cond == TCG_COND_ALWAYS) {
tcg_gen_br(l);
} else if (cond != TCG_COND_NEVER) {
tcg_gen_op6ii_i32(INDEX_op_brcond2_i32,
TCGV_LOW(arg1), TCGV_HIGH(arg1),
tcg_constant_i32(arg2),
tcg_constant_i32(arg2 >> 32),
cond, label_arg(l));
add_last_as_label_use(l);
}
}
void tcg_gen_setcond_i64(TCGCond cond, TCGv_i64 ret,
TCGv_i64 arg1, TCGv_i64 arg2)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_movi_i64(ret, 1);
} else if (cond == TCG_COND_NEVER) {
tcg_gen_movi_i64(ret, 0);
} else {
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_op6i_i32(INDEX_op_setcond2_i32, TCGV_LOW(ret),
TCGV_LOW(arg1), TCGV_HIGH(arg1),
TCGV_LOW(arg2), TCGV_HIGH(arg2), cond);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
} else {
tcg_gen_op4i_i64(INDEX_op_setcond_i64, ret, arg1, arg2, cond);
}
}
}
void tcg_gen_setcondi_i64(TCGCond cond, TCGv_i64 ret,
TCGv_i64 arg1, int64_t arg2)
{
if (TCG_TARGET_REG_BITS == 64) {
tcg_gen_setcond_i64(cond, ret, arg1, tcg_constant_i64(arg2));
} else if (cond == TCG_COND_ALWAYS) {
tcg_gen_movi_i64(ret, 1);
} else if (cond == TCG_COND_NEVER) {
tcg_gen_movi_i64(ret, 0);
} else {
tcg_gen_op6i_i32(INDEX_op_setcond2_i32, TCGV_LOW(ret),
TCGV_LOW(arg1), TCGV_HIGH(arg1),
tcg_constant_i32(arg2),
tcg_constant_i32(arg2 >> 32), cond);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
}
}
void tcg_gen_muli_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
if (arg2 == 0) {
tcg_gen_movi_i64(ret, 0);
} else if (is_power_of_2(arg2)) {
tcg_gen_shli_i64(ret, arg1, ctz64(arg2));
} else {
TCGv_i64 t0 = tcg_const_i64(arg2);
tcg_gen_mul_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_div_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_div_i64) {
tcg_gen_op3_i64(INDEX_op_div_i64, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div2_i64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_sari_i64(t0, arg1, 63);
tcg_gen_op5_i64(INDEX_op_div2_i64, ret, t0, arg1, t0, arg2);
tcg_temp_free_i64(t0);
} else {
gen_helper_div_i64(ret, arg1, arg2);
}
}
void tcg_gen_rem_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_rem_i64) {
tcg_gen_op3_i64(INDEX_op_rem_i64, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div_i64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_op3_i64(INDEX_op_div_i64, t0, arg1, arg2);
tcg_gen_mul_i64(t0, t0, arg2);
tcg_gen_sub_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
} else if (TCG_TARGET_HAS_div2_i64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_sari_i64(t0, arg1, 63);
tcg_gen_op5_i64(INDEX_op_div2_i64, t0, ret, arg1, t0, arg2);
tcg_temp_free_i64(t0);
} else {
gen_helper_rem_i64(ret, arg1, arg2);
}
}
void tcg_gen_divu_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_div_i64) {
tcg_gen_op3_i64(INDEX_op_divu_i64, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div2_i64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_movi_i64(t0, 0);
tcg_gen_op5_i64(INDEX_op_divu2_i64, ret, t0, arg1, t0, arg2);
tcg_temp_free_i64(t0);
} else {
gen_helper_divu_i64(ret, arg1, arg2);
}
}
void tcg_gen_remu_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_rem_i64) {
tcg_gen_op3_i64(INDEX_op_remu_i64, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_div_i64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_op3_i64(INDEX_op_divu_i64, t0, arg1, arg2);
tcg_gen_mul_i64(t0, t0, arg2);
tcg_gen_sub_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
} else if (TCG_TARGET_HAS_div2_i64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_movi_i64(t0, 0);
tcg_gen_op5_i64(INDEX_op_divu2_i64, t0, ret, arg1, t0, arg2);
tcg_temp_free_i64(t0);
} else {
gen_helper_remu_i64(ret, arg1, arg2);
}
}
void tcg_gen_ext8s_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_ext8s_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
} else if (TCG_TARGET_HAS_ext8s_i64) {
tcg_gen_op2_i64(INDEX_op_ext8s_i64, ret, arg);
} else {
tcg_gen_shli_i64(ret, arg, 56);
tcg_gen_sari_i64(ret, ret, 56);
}
}
void tcg_gen_ext16s_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_ext16s_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
} else if (TCG_TARGET_HAS_ext16s_i64) {
tcg_gen_op2_i64(INDEX_op_ext16s_i64, ret, arg);
} else {
tcg_gen_shli_i64(ret, arg, 48);
tcg_gen_sari_i64(ret, ret, 48);
}
}
void tcg_gen_ext32s_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
} else if (TCG_TARGET_HAS_ext32s_i64) {
tcg_gen_op2_i64(INDEX_op_ext32s_i64, ret, arg);
} else {
tcg_gen_shli_i64(ret, arg, 32);
tcg_gen_sari_i64(ret, ret, 32);
}
}
void tcg_gen_ext8u_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_ext8u_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
} else if (TCG_TARGET_HAS_ext8u_i64) {
tcg_gen_op2_i64(INDEX_op_ext8u_i64, ret, arg);
} else {
tcg_gen_andi_i64(ret, arg, 0xffu);
}
}
void tcg_gen_ext16u_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_ext16u_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
} else if (TCG_TARGET_HAS_ext16u_i64) {
tcg_gen_op2_i64(INDEX_op_ext16u_i64, ret, arg);
} else {
tcg_gen_andi_i64(ret, arg, 0xffffu);
}
}
void tcg_gen_ext32u_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
} else if (TCG_TARGET_HAS_ext32u_i64) {
tcg_gen_op2_i64(INDEX_op_ext32u_i64, ret, arg);
} else {
tcg_gen_andi_i64(ret, arg, 0xffffffffu);
}
}
void tcg_gen_bswap16_i64(TCGv_i64 ret, TCGv_i64 arg, int flags)
{
/* Only one extension flag may be present. */
tcg_debug_assert(!(flags & TCG_BSWAP_OS) || !(flags & TCG_BSWAP_OZ));
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_bswap16_i32(TCGV_LOW(ret), TCGV_LOW(arg), flags);
if (flags & TCG_BSWAP_OS) {
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
} else {
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
}
} else if (TCG_TARGET_HAS_bswap16_i64) {
tcg_gen_op3i_i64(INDEX_op_bswap16_i64, ret, arg, flags);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
tcg_gen_shri_i64(t0, arg, 8);
if (!(flags & TCG_BSWAP_IZ)) {
tcg_gen_ext8u_i64(t0, t0);
}
if (flags & TCG_BSWAP_OS) {
tcg_gen_shli_i64(t1, arg, 56);
tcg_gen_sari_i64(t1, t1, 48);
} else if (flags & TCG_BSWAP_OZ) {
tcg_gen_ext8u_i64(t1, arg);
tcg_gen_shli_i64(t1, t1, 8);
} else {
tcg_gen_shli_i64(t1, arg, 8);
}
tcg_gen_or_i64(ret, t0, t1);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg, int flags)
{
/* Only one extension flag may be present. */
tcg_debug_assert(!(flags & TCG_BSWAP_OS) || !(flags & TCG_BSWAP_OZ));
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_bswap32_i32(TCGV_LOW(ret), TCGV_LOW(arg));
if (flags & TCG_BSWAP_OS) {
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
} else {
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
}
} else if (TCG_TARGET_HAS_bswap32_i64) {
tcg_gen_op3i_i64(INDEX_op_bswap32_i64, ret, arg, flags);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 t2 = tcg_constant_i64(0x00ff00ff);
/* arg = xxxxabcd */
tcg_gen_shri_i64(t0, arg, 8); /* t0 = .xxxxabc */
tcg_gen_and_i64(t1, arg, t2); /* t1 = .....b.d */
tcg_gen_and_i64(t0, t0, t2); /* t0 = .....a.c */
tcg_gen_shli_i64(t1, t1, 8); /* t1 = ....b.d. */
tcg_gen_or_i64(ret, t0, t1); /* ret = ....badc */
tcg_gen_shli_i64(t1, ret, 48); /* t1 = dc...... */
tcg_gen_shri_i64(t0, ret, 16); /* t0 = ......ba */
if (flags & TCG_BSWAP_OS) {
tcg_gen_sari_i64(t1, t1, 32); /* t1 = ssssdc.. */
} else {
tcg_gen_shri_i64(t1, t1, 32); /* t1 = ....dc.. */
}
tcg_gen_or_i64(ret, t0, t1); /* ret = ssssdcba */
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
TCGv_i32 t0, t1;
t0 = tcg_temp_ebb_new_i32();
t1 = tcg_temp_ebb_new_i32();
tcg_gen_bswap32_i32(t0, TCGV_LOW(arg));
tcg_gen_bswap32_i32(t1, TCGV_HIGH(arg));
tcg_gen_mov_i32(TCGV_LOW(ret), t1);
tcg_gen_mov_i32(TCGV_HIGH(ret), t0);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
} else if (TCG_TARGET_HAS_bswap64_i64) {
tcg_gen_op3i_i64(INDEX_op_bswap64_i64, ret, arg, 0);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 t2 = tcg_temp_ebb_new_i64();
/* arg = abcdefgh */
tcg_gen_movi_i64(t2, 0x00ff00ff00ff00ffull);
tcg_gen_shri_i64(t0, arg, 8); /* t0 = .abcdefg */
tcg_gen_and_i64(t1, arg, t2); /* t1 = .b.d.f.h */
tcg_gen_and_i64(t0, t0, t2); /* t0 = .a.c.e.g */
tcg_gen_shli_i64(t1, t1, 8); /* t1 = b.d.f.h. */
tcg_gen_or_i64(ret, t0, t1); /* ret = badcfehg */
tcg_gen_movi_i64(t2, 0x0000ffff0000ffffull);
tcg_gen_shri_i64(t0, ret, 16); /* t0 = ..badcfe */
tcg_gen_and_i64(t1, ret, t2); /* t1 = ..dc..hg */
tcg_gen_and_i64(t0, t0, t2); /* t0 = ..ba..fe */
tcg_gen_shli_i64(t1, t1, 16); /* t1 = dc..hg.. */
tcg_gen_or_i64(ret, t0, t1); /* ret = dcbahgfe */
tcg_gen_shri_i64(t0, ret, 32); /* t0 = ....dcba */
tcg_gen_shli_i64(t1, ret, 32); /* t1 = hgfe.... */
tcg_gen_or_i64(ret, t0, t1); /* ret = hgfedcba */
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
}
}
void tcg_gen_hswap_i64(TCGv_i64 ret, TCGv_i64 arg)
{
uint64_t m = 0x0000ffff0000ffffull;
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
/* See include/qemu/bitops.h, hswap64. */
tcg_gen_rotli_i64(t1, arg, 32);
tcg_gen_andi_i64(t0, t1, m);
tcg_gen_shli_i64(t0, t0, 16);
tcg_gen_shri_i64(t1, t1, 16);
tcg_gen_andi_i64(t1, t1, m);
tcg_gen_or_i64(ret, t0, t1);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
void tcg_gen_wswap_i64(TCGv_i64 ret, TCGv_i64 arg)
{
/* Swapping 2 32-bit elements is a rotate. */
tcg_gen_rotli_i64(ret, arg, 32);
}
void tcg_gen_not_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_not_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_not_i32(TCGV_HIGH(ret), TCGV_HIGH(arg));
} else if (TCG_TARGET_HAS_not_i64) {
tcg_gen_op2_i64(INDEX_op_not_i64, ret, arg);
} else {
tcg_gen_xori_i64(ret, arg, -1);
}
}
void tcg_gen_andc_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_andc_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_andc_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
} else if (TCG_TARGET_HAS_andc_i64) {
tcg_gen_op3_i64(INDEX_op_andc_i64, ret, arg1, arg2);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_not_i64(t0, arg2);
tcg_gen_and_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_eqv_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_eqv_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_eqv_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
} else if (TCG_TARGET_HAS_eqv_i64) {
tcg_gen_op3_i64(INDEX_op_eqv_i64, ret, arg1, arg2);
} else {
tcg_gen_xor_i64(ret, arg1, arg2);
tcg_gen_not_i64(ret, ret);
}
}
void tcg_gen_nand_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_nand_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_nand_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
} else if (TCG_TARGET_HAS_nand_i64) {
tcg_gen_op3_i64(INDEX_op_nand_i64, ret, arg1, arg2);
} else {
tcg_gen_and_i64(ret, arg1, arg2);
tcg_gen_not_i64(ret, ret);
}
}
void tcg_gen_nor_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_nor_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_nor_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
} else if (TCG_TARGET_HAS_nor_i64) {
tcg_gen_op3_i64(INDEX_op_nor_i64, ret, arg1, arg2);
} else {
tcg_gen_or_i64(ret, arg1, arg2);
tcg_gen_not_i64(ret, ret);
}
}
void tcg_gen_orc_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_orc_i32(TCGV_LOW(ret), TCGV_LOW(arg1), TCGV_LOW(arg2));
tcg_gen_orc_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), TCGV_HIGH(arg2));
} else if (TCG_TARGET_HAS_orc_i64) {
tcg_gen_op3_i64(INDEX_op_orc_i64, ret, arg1, arg2);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_not_i64(t0, arg2);
tcg_gen_or_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_clz_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_clz_i64) {
tcg_gen_op3_i64(INDEX_op_clz_i64, ret, arg1, arg2);
} else {
gen_helper_clz_i64(ret, arg1, arg2);
}
}
void tcg_gen_clzi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2)
{
if (TCG_TARGET_REG_BITS == 32
&& TCG_TARGET_HAS_clz_i32
&& arg2 <= 0xffffffffu) {
TCGv_i32 t = tcg_temp_ebb_new_i32();
tcg_gen_clzi_i32(t, TCGV_LOW(arg1), arg2 - 32);
tcg_gen_addi_i32(t, t, 32);
tcg_gen_clz_i32(TCGV_LOW(ret), TCGV_HIGH(arg1), t);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
tcg_temp_free_i32(t);
} else {
TCGv_i64 t0 = tcg_const_i64(arg2);
tcg_gen_clz_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_ctz_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_ctz_i64) {
tcg_gen_op3_i64(INDEX_op_ctz_i64, ret, arg1, arg2);
} else if (TCG_TARGET_HAS_ctpop_i64 || TCG_TARGET_HAS_clz_i64) {
TCGv_i64 z, t = tcg_temp_ebb_new_i64();
if (TCG_TARGET_HAS_ctpop_i64) {
tcg_gen_subi_i64(t, arg1, 1);
tcg_gen_andc_i64(t, t, arg1);
tcg_gen_ctpop_i64(t, t);
} else {
/* Since all non-x86 hosts have clz(0) == 64, don't fight it. */
tcg_gen_neg_i64(t, arg1);
tcg_gen_and_i64(t, t, arg1);
tcg_gen_clzi_i64(t, t, 64);
tcg_gen_xori_i64(t, t, 63);
}
z = tcg_constant_i64(0);
tcg_gen_movcond_i64(TCG_COND_EQ, ret, arg1, z, arg2, t);
tcg_temp_free_i64(t);
tcg_temp_free_i64(z);
} else {
gen_helper_ctz_i64(ret, arg1, arg2);
}
}
void tcg_gen_ctzi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2)
{
if (TCG_TARGET_REG_BITS == 32
&& TCG_TARGET_HAS_ctz_i32
&& arg2 <= 0xffffffffu) {
TCGv_i32 t32 = tcg_temp_ebb_new_i32();
tcg_gen_ctzi_i32(t32, TCGV_HIGH(arg1), arg2 - 32);
tcg_gen_addi_i32(t32, t32, 32);
tcg_gen_ctz_i32(TCGV_LOW(ret), TCGV_LOW(arg1), t32);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
tcg_temp_free_i32(t32);
} else if (!TCG_TARGET_HAS_ctz_i64
&& TCG_TARGET_HAS_ctpop_i64
&& arg2 == 64) {
/* This equivalence has the advantage of not requiring a fixup. */
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_subi_i64(t, arg1, 1);
tcg_gen_andc_i64(t, t, arg1);
tcg_gen_ctpop_i64(ret, t);
tcg_temp_free_i64(t);
} else {
TCGv_i64 t0 = tcg_const_i64(arg2);
tcg_gen_ctz_i64(ret, arg1, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_clrsb_i64(TCGv_i64 ret, TCGv_i64 arg)
{
if (TCG_TARGET_HAS_clz_i64 || TCG_TARGET_HAS_clz_i32) {
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_sari_i64(t, arg, 63);
tcg_gen_xor_i64(t, t, arg);
tcg_gen_clzi_i64(t, t, 64);
tcg_gen_subi_i64(ret, t, 1);
tcg_temp_free_i64(t);
} else {
gen_helper_clrsb_i64(ret, arg);
}
}
void tcg_gen_ctpop_i64(TCGv_i64 ret, TCGv_i64 arg1)
{
if (TCG_TARGET_HAS_ctpop_i64) {
tcg_gen_op2_i64(INDEX_op_ctpop_i64, ret, arg1);
} else if (TCG_TARGET_REG_BITS == 32 && TCG_TARGET_HAS_ctpop_i32) {
tcg_gen_ctpop_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1));
tcg_gen_ctpop_i32(TCGV_LOW(ret), TCGV_LOW(arg1));
tcg_gen_add_i32(TCGV_LOW(ret), TCGV_LOW(ret), TCGV_HIGH(ret));
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
} else {
gen_helper_ctpop_i64(ret, arg1);
}
}
void tcg_gen_rotl_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_rot_i64) {
tcg_gen_op3_i64(INDEX_op_rotl_i64, ret, arg1, arg2);
} else {
TCGv_i64 t0, t1;
t0 = tcg_temp_ebb_new_i64();
t1 = tcg_temp_ebb_new_i64();
tcg_gen_shl_i64(t0, arg1, arg2);
tcg_gen_subfi_i64(t1, 64, arg2);
tcg_gen_shr_i64(t1, arg1, t1);
tcg_gen_or_i64(ret, t0, t1);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_rotli_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 64);
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else if (TCG_TARGET_HAS_rot_i64) {
tcg_gen_rotl_i64(ret, arg1, tcg_constant_i64(arg2));
} else {
TCGv_i64 t0, t1;
t0 = tcg_temp_ebb_new_i64();
t1 = tcg_temp_ebb_new_i64();
tcg_gen_shli_i64(t0, arg1, arg2);
tcg_gen_shri_i64(t1, arg1, 64 - arg2);
tcg_gen_or_i64(ret, t0, t1);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_rotr_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_rot_i64) {
tcg_gen_op3_i64(INDEX_op_rotr_i64, ret, arg1, arg2);
} else {
TCGv_i64 t0, t1;
t0 = tcg_temp_ebb_new_i64();
t1 = tcg_temp_ebb_new_i64();
tcg_gen_shr_i64(t0, arg1, arg2);
tcg_gen_subfi_i64(t1, 64, arg2);
tcg_gen_shl_i64(t1, arg1, t1);
tcg_gen_or_i64(ret, t0, t1);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_rotri_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
{
tcg_debug_assert(arg2 >= 0 && arg2 < 64);
/* some cases can be optimized here */
if (arg2 == 0) {
tcg_gen_mov_i64(ret, arg1);
} else {
tcg_gen_rotli_i64(ret, arg1, 64 - arg2);
}
}
void tcg_gen_deposit_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2,
unsigned int ofs, unsigned int len)
{
uint64_t mask;
TCGv_i64 t1;
tcg_debug_assert(ofs < 64);
tcg_debug_assert(len > 0);
tcg_debug_assert(len <= 64);
tcg_debug_assert(ofs + len <= 64);
if (len == 64) {
tcg_gen_mov_i64(ret, arg2);
return;
}
if (TCG_TARGET_HAS_deposit_i64 && TCG_TARGET_deposit_i64_valid(ofs, len)) {
tcg_gen_op5ii_i64(INDEX_op_deposit_i64, ret, arg1, arg2, ofs, len);
return;
}
if (TCG_TARGET_REG_BITS == 32) {
if (ofs >= 32) {
tcg_gen_deposit_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1),
TCGV_LOW(arg2), ofs - 32, len);
tcg_gen_mov_i32(TCGV_LOW(ret), TCGV_LOW(arg1));
return;
}
if (ofs + len <= 32) {
tcg_gen_deposit_i32(TCGV_LOW(ret), TCGV_LOW(arg1),
TCGV_LOW(arg2), ofs, len);
tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1));
return;
}
}
t1 = tcg_temp_ebb_new_i64();
if (TCG_TARGET_HAS_extract2_i64) {
if (ofs + len == 64) {
tcg_gen_shli_i64(t1, arg1, len);
tcg_gen_extract2_i64(ret, t1, arg2, len);
goto done;
}
if (ofs == 0) {
tcg_gen_extract2_i64(ret, arg1, arg2, len);
tcg_gen_rotli_i64(ret, ret, len);
goto done;
}
}
mask = (1ull << len) - 1;
if (ofs + len < 64) {
tcg_gen_andi_i64(t1, arg2, mask);
tcg_gen_shli_i64(t1, t1, ofs);
} else {
tcg_gen_shli_i64(t1, arg2, ofs);
}
tcg_gen_andi_i64(ret, arg1, ~(mask << ofs));
tcg_gen_or_i64(ret, ret, t1);
done:
tcg_temp_free_i64(t1);
}
void tcg_gen_deposit_z_i64(TCGv_i64 ret, TCGv_i64 arg,
unsigned int ofs, unsigned int len)
{
tcg_debug_assert(ofs < 64);
tcg_debug_assert(len > 0);
tcg_debug_assert(len <= 64);
tcg_debug_assert(ofs + len <= 64);
if (ofs + len == 64) {
tcg_gen_shli_i64(ret, arg, ofs);
} else if (ofs == 0) {
tcg_gen_andi_i64(ret, arg, (1ull << len) - 1);
} else if (TCG_TARGET_HAS_deposit_i64
&& TCG_TARGET_deposit_i64_valid(ofs, len)) {
TCGv_i64 zero = tcg_constant_i64(0);
tcg_gen_op5ii_i64(INDEX_op_deposit_i64, ret, zero, arg, ofs, len);
} else {
if (TCG_TARGET_REG_BITS == 32) {
if (ofs >= 32) {
tcg_gen_deposit_z_i32(TCGV_HIGH(ret), TCGV_LOW(arg),
ofs - 32, len);
tcg_gen_movi_i32(TCGV_LOW(ret), 0);
return;
}
if (ofs + len <= 32) {
tcg_gen_deposit_z_i32(TCGV_LOW(ret), TCGV_LOW(arg), ofs, len);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
return;
}
}
/* To help two-operand hosts we prefer to zero-extend first,
which allows ARG to stay live. */
switch (len) {
case 32:
if (TCG_TARGET_HAS_ext32u_i64) {
tcg_gen_ext32u_i64(ret, arg);
tcg_gen_shli_i64(ret, ret, ofs);
return;
}
break;
case 16:
if (TCG_TARGET_HAS_ext16u_i64) {
tcg_gen_ext16u_i64(ret, arg);
tcg_gen_shli_i64(ret, ret, ofs);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8u_i64) {
tcg_gen_ext8u_i64(ret, arg);
tcg_gen_shli_i64(ret, ret, ofs);
return;
}
break;
}
/* Otherwise prefer zero-extension over AND for code size. */
switch (ofs + len) {
case 32:
if (TCG_TARGET_HAS_ext32u_i64) {
tcg_gen_shli_i64(ret, arg, ofs);
tcg_gen_ext32u_i64(ret, ret);
return;
}
break;
case 16:
if (TCG_TARGET_HAS_ext16u_i64) {
tcg_gen_shli_i64(ret, arg, ofs);
tcg_gen_ext16u_i64(ret, ret);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8u_i64) {
tcg_gen_shli_i64(ret, arg, ofs);
tcg_gen_ext8u_i64(ret, ret);
return;
}
break;
}
tcg_gen_andi_i64(ret, arg, (1ull << len) - 1);
tcg_gen_shli_i64(ret, ret, ofs);
}
}
void tcg_gen_extract_i64(TCGv_i64 ret, TCGv_i64 arg,
unsigned int ofs, unsigned int len)
{
tcg_debug_assert(ofs < 64);
tcg_debug_assert(len > 0);
tcg_debug_assert(len <= 64);
tcg_debug_assert(ofs + len <= 64);
/* Canonicalize certain special cases, even if extract is supported. */
if (ofs + len == 64) {
tcg_gen_shri_i64(ret, arg, 64 - len);
return;
}
if (ofs == 0) {
tcg_gen_andi_i64(ret, arg, (1ull << len) - 1);
return;
}
if (TCG_TARGET_REG_BITS == 32) {
/* Look for a 32-bit extract within one of the two words. */
if (ofs >= 32) {
tcg_gen_extract_i32(TCGV_LOW(ret), TCGV_HIGH(arg), ofs - 32, len);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
return;
}
if (ofs + len <= 32) {
tcg_gen_extract_i32(TCGV_LOW(ret), TCGV_LOW(arg), ofs, len);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
return;
}
/* The field is split across two words. One double-word
shift is better than two double-word shifts. */
goto do_shift_and;
}
if (TCG_TARGET_HAS_extract_i64
&& TCG_TARGET_extract_i64_valid(ofs, len)) {
tcg_gen_op4ii_i64(INDEX_op_extract_i64, ret, arg, ofs, len);
return;
}
/* Assume that zero-extension, if available, is cheaper than a shift. */
switch (ofs + len) {
case 32:
if (TCG_TARGET_HAS_ext32u_i64) {
tcg_gen_ext32u_i64(ret, arg);
tcg_gen_shri_i64(ret, ret, ofs);
return;
}
break;
case 16:
if (TCG_TARGET_HAS_ext16u_i64) {
tcg_gen_ext16u_i64(ret, arg);
tcg_gen_shri_i64(ret, ret, ofs);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8u_i64) {
tcg_gen_ext8u_i64(ret, arg);
tcg_gen_shri_i64(ret, ret, ofs);
return;
}
break;
}
/* ??? Ideally we'd know what values are available for immediate AND.
Assume that 8 bits are available, plus the special cases of 16 and 32,
so that we get ext8u, ext16u, and ext32u. */
switch (len) {
case 1 ... 8: case 16: case 32:
do_shift_and:
tcg_gen_shri_i64(ret, arg, ofs);
tcg_gen_andi_i64(ret, ret, (1ull << len) - 1);
break;
default:
tcg_gen_shli_i64(ret, arg, 64 - len - ofs);
tcg_gen_shri_i64(ret, ret, 64 - len);
break;
}
}
void tcg_gen_sextract_i64(TCGv_i64 ret, TCGv_i64 arg,
unsigned int ofs, unsigned int len)
{
tcg_debug_assert(ofs < 64);
tcg_debug_assert(len > 0);
tcg_debug_assert(len <= 64);
tcg_debug_assert(ofs + len <= 64);
/* Canonicalize certain special cases, even if sextract is supported. */
if (ofs + len == 64) {
tcg_gen_sari_i64(ret, arg, 64 - len);
return;
}
if (ofs == 0) {
switch (len) {
case 32:
tcg_gen_ext32s_i64(ret, arg);
return;
case 16:
tcg_gen_ext16s_i64(ret, arg);
return;
case 8:
tcg_gen_ext8s_i64(ret, arg);
return;
}
}
if (TCG_TARGET_REG_BITS == 32) {
/* Look for a 32-bit extract within one of the two words. */
if (ofs >= 32) {
tcg_gen_sextract_i32(TCGV_LOW(ret), TCGV_HIGH(arg), ofs - 32, len);
} else if (ofs + len <= 32) {
tcg_gen_sextract_i32(TCGV_LOW(ret), TCGV_LOW(arg), ofs, len);
} else if (ofs == 0) {
tcg_gen_mov_i32(TCGV_LOW(ret), TCGV_LOW(arg));
tcg_gen_sextract_i32(TCGV_HIGH(ret), TCGV_HIGH(arg), 0, len - 32);
return;
} else if (len > 32) {
TCGv_i32 t = tcg_temp_ebb_new_i32();
/* Extract the bits for the high word normally. */
tcg_gen_sextract_i32(t, TCGV_HIGH(arg), ofs + 32, len - 32);
/* Shift the field down for the low part. */
tcg_gen_shri_i64(ret, arg, ofs);
/* Overwrite the shift into the high part. */
tcg_gen_mov_i32(TCGV_HIGH(ret), t);
tcg_temp_free_i32(t);
return;
} else {
/* Shift the field down for the low part, such that the
field sits at the MSB. */
tcg_gen_shri_i64(ret, arg, ofs + len - 32);
/* Shift the field down from the MSB, sign extending. */
tcg_gen_sari_i32(TCGV_LOW(ret), TCGV_LOW(ret), 32 - len);
}
/* Sign-extend the field from 32 bits. */
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
return;
}
if (TCG_TARGET_HAS_sextract_i64
&& TCG_TARGET_extract_i64_valid(ofs, len)) {
tcg_gen_op4ii_i64(INDEX_op_sextract_i64, ret, arg, ofs, len);
return;
}
/* Assume that sign-extension, if available, is cheaper than a shift. */
switch (ofs + len) {
case 32:
if (TCG_TARGET_HAS_ext32s_i64) {
tcg_gen_ext32s_i64(ret, arg);
tcg_gen_sari_i64(ret, ret, ofs);
return;
}
break;
case 16:
if (TCG_TARGET_HAS_ext16s_i64) {
tcg_gen_ext16s_i64(ret, arg);
tcg_gen_sari_i64(ret, ret, ofs);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8s_i64) {
tcg_gen_ext8s_i64(ret, arg);
tcg_gen_sari_i64(ret, ret, ofs);
return;
}
break;
}
switch (len) {
case 32:
if (TCG_TARGET_HAS_ext32s_i64) {
tcg_gen_shri_i64(ret, arg, ofs);
tcg_gen_ext32s_i64(ret, ret);
return;
}
break;
case 16:
if (TCG_TARGET_HAS_ext16s_i64) {
tcg_gen_shri_i64(ret, arg, ofs);
tcg_gen_ext16s_i64(ret, ret);
return;
}
break;
case 8:
if (TCG_TARGET_HAS_ext8s_i64) {
tcg_gen_shri_i64(ret, arg, ofs);
tcg_gen_ext8s_i64(ret, ret);
return;
}
break;
}
tcg_gen_shli_i64(ret, arg, 64 - len - ofs);
tcg_gen_sari_i64(ret, ret, 64 - len);
}
/*
* Extract 64 bits from a 128-bit input, ah:al, starting from ofs.
* Unlike tcg_gen_extract_i64 above, len is fixed at 64.
*/
void tcg_gen_extract2_i64(TCGv_i64 ret, TCGv_i64 al, TCGv_i64 ah,
unsigned int ofs)
{
tcg_debug_assert(ofs <= 64);
if (ofs == 0) {
tcg_gen_mov_i64(ret, al);
} else if (ofs == 64) {
tcg_gen_mov_i64(ret, ah);
} else if (al == ah) {
tcg_gen_rotri_i64(ret, al, ofs);
} else if (TCG_TARGET_HAS_extract2_i64) {
tcg_gen_op4i_i64(INDEX_op_extract2_i64, ret, al, ah, ofs);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_shri_i64(t0, al, ofs);
tcg_gen_deposit_i64(ret, t0, ah, 64 - ofs, ofs);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_movcond_i64(TCGCond cond, TCGv_i64 ret, TCGv_i64 c1,
TCGv_i64 c2, TCGv_i64 v1, TCGv_i64 v2)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_mov_i64(ret, v1);
} else if (cond == TCG_COND_NEVER) {
tcg_gen_mov_i64(ret, v2);
} else if (TCG_TARGET_REG_BITS == 32) {
TCGv_i32 t0 = tcg_temp_ebb_new_i32();
TCGv_i32 t1 = tcg_temp_ebb_new_i32();
tcg_gen_op6i_i32(INDEX_op_setcond2_i32, t0,
TCGV_LOW(c1), TCGV_HIGH(c1),
TCGV_LOW(c2), TCGV_HIGH(c2), cond);
if (TCG_TARGET_HAS_movcond_i32) {
tcg_gen_movi_i32(t1, 0);
tcg_gen_movcond_i32(TCG_COND_NE, TCGV_LOW(ret), t0, t1,
TCGV_LOW(v1), TCGV_LOW(v2));
tcg_gen_movcond_i32(TCG_COND_NE, TCGV_HIGH(ret), t0, t1,
TCGV_HIGH(v1), TCGV_HIGH(v2));
} else {
tcg_gen_neg_i32(t0, t0);
tcg_gen_and_i32(t1, TCGV_LOW(v1), t0);
tcg_gen_andc_i32(TCGV_LOW(ret), TCGV_LOW(v2), t0);
tcg_gen_or_i32(TCGV_LOW(ret), TCGV_LOW(ret), t1);
tcg_gen_and_i32(t1, TCGV_HIGH(v1), t0);
tcg_gen_andc_i32(TCGV_HIGH(ret), TCGV_HIGH(v2), t0);
tcg_gen_or_i32(TCGV_HIGH(ret), TCGV_HIGH(ret), t1);
}
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
} else if (TCG_TARGET_HAS_movcond_i64) {
tcg_gen_op6i_i64(INDEX_op_movcond_i64, ret, c1, c2, v1, v2, cond);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
tcg_gen_setcond_i64(cond, t0, c1, c2);
tcg_gen_neg_i64(t0, t0);
tcg_gen_and_i64(t1, v1, t0);
tcg_gen_andc_i64(ret, v2, t0);
tcg_gen_or_i64(ret, ret, t1);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_add2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al,
TCGv_i64 ah, TCGv_i64 bl, TCGv_i64 bh)
{
if (TCG_TARGET_HAS_add2_i64) {
tcg_gen_op6_i64(INDEX_op_add2_i64, rl, rh, al, ah, bl, bh);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
tcg_gen_add_i64(t0, al, bl);
tcg_gen_setcond_i64(TCG_COND_LTU, t1, t0, al);
tcg_gen_add_i64(rh, ah, bh);
tcg_gen_add_i64(rh, rh, t1);
tcg_gen_mov_i64(rl, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_sub2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al,
TCGv_i64 ah, TCGv_i64 bl, TCGv_i64 bh)
{
if (TCG_TARGET_HAS_sub2_i64) {
tcg_gen_op6_i64(INDEX_op_sub2_i64, rl, rh, al, ah, bl, bh);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
tcg_gen_sub_i64(t0, al, bl);
tcg_gen_setcond_i64(TCG_COND_LTU, t1, al, bl);
tcg_gen_sub_i64(rh, ah, bh);
tcg_gen_sub_i64(rh, rh, t1);
tcg_gen_mov_i64(rl, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
}
void tcg_gen_mulu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_mulu2_i64) {
tcg_gen_op4_i64(INDEX_op_mulu2_i64, rl, rh, arg1, arg2);
} else if (TCG_TARGET_HAS_muluh_i64) {
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_op3_i64(INDEX_op_mul_i64, t, arg1, arg2);
tcg_gen_op3_i64(INDEX_op_muluh_i64, rh, arg1, arg2);
tcg_gen_mov_i64(rl, t);
tcg_temp_free_i64(t);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_mul_i64(t0, arg1, arg2);
gen_helper_muluh_i64(rh, arg1, arg2);
tcg_gen_mov_i64(rl, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_muls2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2)
{
if (TCG_TARGET_HAS_muls2_i64) {
tcg_gen_op4_i64(INDEX_op_muls2_i64, rl, rh, arg1, arg2);
} else if (TCG_TARGET_HAS_mulsh_i64) {
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_op3_i64(INDEX_op_mul_i64, t, arg1, arg2);
tcg_gen_op3_i64(INDEX_op_mulsh_i64, rh, arg1, arg2);
tcg_gen_mov_i64(rl, t);
tcg_temp_free_i64(t);
} else if (TCG_TARGET_HAS_mulu2_i64 || TCG_TARGET_HAS_muluh_i64) {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 t2 = tcg_temp_ebb_new_i64();
TCGv_i64 t3 = tcg_temp_ebb_new_i64();
tcg_gen_mulu2_i64(t0, t1, arg1, arg2);
/* Adjust for negative inputs. */
tcg_gen_sari_i64(t2, arg1, 63);
tcg_gen_sari_i64(t3, arg2, 63);
tcg_gen_and_i64(t2, t2, arg2);
tcg_gen_and_i64(t3, t3, arg1);
tcg_gen_sub_i64(rh, t1, t2);
tcg_gen_sub_i64(rh, rh, t3);
tcg_gen_mov_i64(rl, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
tcg_temp_free_i64(t3);
} else {
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
tcg_gen_mul_i64(t0, arg1, arg2);
gen_helper_mulsh_i64(rh, arg1, arg2);
tcg_gen_mov_i64(rl, t0);
tcg_temp_free_i64(t0);
}
}
void tcg_gen_mulsu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2)
{
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 t2 = tcg_temp_ebb_new_i64();
tcg_gen_mulu2_i64(t0, t1, arg1, arg2);
/* Adjust for negative input for the signed arg1. */
tcg_gen_sari_i64(t2, arg1, 63);
tcg_gen_and_i64(t2, t2, arg2);
tcg_gen_sub_i64(rh, t1, t2);
tcg_gen_mov_i64(rl, t0);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
}
void tcg_gen_smin_i64(TCGv_i64 ret, TCGv_i64 a, TCGv_i64 b)
{
tcg_gen_movcond_i64(TCG_COND_LT, ret, a, b, a, b);
}
void tcg_gen_umin_i64(TCGv_i64 ret, TCGv_i64 a, TCGv_i64 b)
{
tcg_gen_movcond_i64(TCG_COND_LTU, ret, a, b, a, b);
}
void tcg_gen_smax_i64(TCGv_i64 ret, TCGv_i64 a, TCGv_i64 b)
{
tcg_gen_movcond_i64(TCG_COND_LT, ret, a, b, b, a);
}
void tcg_gen_umax_i64(TCGv_i64 ret, TCGv_i64 a, TCGv_i64 b)
{
tcg_gen_movcond_i64(TCG_COND_LTU, ret, a, b, b, a);
}
void tcg_gen_abs_i64(TCGv_i64 ret, TCGv_i64 a)
{
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_sari_i64(t, a, 63);
tcg_gen_xor_i64(ret, a, t);
tcg_gen_sub_i64(ret, ret, t);
tcg_temp_free_i64(t);
}
/* Size changing operations. */
void tcg_gen_extrl_i64_i32(TCGv_i32 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(ret, TCGV_LOW(arg));
} else if (TCG_TARGET_HAS_extrl_i64_i32) {
tcg_gen_op2(INDEX_op_extrl_i64_i32,
tcgv_i32_arg(ret), tcgv_i64_arg(arg));
} else {
tcg_gen_mov_i32(ret, (TCGv_i32)arg);
}
}
void tcg_gen_extrh_i64_i32(TCGv_i32 ret, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(ret, TCGV_HIGH(arg));
} else if (TCG_TARGET_HAS_extrh_i64_i32) {
tcg_gen_op2(INDEX_op_extrh_i64_i32,
tcgv_i32_arg(ret), tcgv_i64_arg(arg));
} else {
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_shri_i64(t, arg, 32);
tcg_gen_mov_i32(ret, (TCGv_i32)t);
tcg_temp_free_i64(t);
}
}
void tcg_gen_extu_i32_i64(TCGv_i64 ret, TCGv_i32 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(TCGV_LOW(ret), arg);
tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
} else {
tcg_gen_op2(INDEX_op_extu_i32_i64,
tcgv_i64_arg(ret), tcgv_i32_arg(arg));
}
}
void tcg_gen_ext_i32_i64(TCGv_i64 ret, TCGv_i32 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(TCGV_LOW(ret), arg);
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
} else {
tcg_gen_op2(INDEX_op_ext_i32_i64,
tcgv_i64_arg(ret), tcgv_i32_arg(arg));
}
}
void tcg_gen_concat_i32_i64(TCGv_i64 dest, TCGv_i32 low, TCGv_i32 high)
{
TCGv_i64 tmp;
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(TCGV_LOW(dest), low);
tcg_gen_mov_i32(TCGV_HIGH(dest), high);
return;
}
tmp = tcg_temp_ebb_new_i64();
/* These extensions are only needed for type correctness.
We may be able to do better given target specific information. */
tcg_gen_extu_i32_i64(tmp, high);
tcg_gen_extu_i32_i64(dest, low);
/* If deposit is available, use it. Otherwise use the extra
knowledge that we have of the zero-extensions above. */
if (TCG_TARGET_HAS_deposit_i64 && TCG_TARGET_deposit_i64_valid(32, 32)) {
tcg_gen_deposit_i64(dest, dest, tmp, 32, 32);
} else {
tcg_gen_shli_i64(tmp, tmp, 32);
tcg_gen_or_i64(dest, dest, tmp);
}
tcg_temp_free_i64(tmp);
}
void tcg_gen_extr_i64_i32(TCGv_i32 lo, TCGv_i32 hi, TCGv_i64 arg)
{
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_mov_i32(lo, TCGV_LOW(arg));
tcg_gen_mov_i32(hi, TCGV_HIGH(arg));
} else {
tcg_gen_extrl_i64_i32(lo, arg);
tcg_gen_extrh_i64_i32(hi, arg);
}
}
void tcg_gen_extr32_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i64 arg)
{
tcg_gen_ext32u_i64(lo, arg);
tcg_gen_shri_i64(hi, arg, 32);
}
void tcg_gen_extr_i128_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i128 arg)
{
tcg_gen_mov_i64(lo, TCGV128_LOW(arg));
tcg_gen_mov_i64(hi, TCGV128_HIGH(arg));
}
void tcg_gen_concat_i64_i128(TCGv_i128 ret, TCGv_i64 lo, TCGv_i64 hi)
{
tcg_gen_mov_i64(TCGV128_LOW(ret), lo);
tcg_gen_mov_i64(TCGV128_HIGH(ret), hi);
}
void tcg_gen_mov_i128(TCGv_i128 dst, TCGv_i128 src)
{
if (dst != src) {
tcg_gen_mov_i64(TCGV128_LOW(dst), TCGV128_LOW(src));
tcg_gen_mov_i64(TCGV128_HIGH(dst), TCGV128_HIGH(src));
}
}
/* QEMU specific operations. */
void tcg_gen_exit_tb(const TranslationBlock *tb, unsigned idx)
{
/*
* Let the jit code return the read-only version of the
* TranslationBlock, so that we minimize the pc-relative
* distance of the address of the exit_tb code to TB.
* This will improve utilization of pc-relative address loads.
*
* TODO: Move this to translator_loop, so that all const
* TranslationBlock pointers refer to read-only memory.
* This requires coordination with targets that do not use
* the translator_loop.
*/
uintptr_t val = (uintptr_t)tcg_splitwx_to_rx((void *)tb) + idx;
if (tb == NULL) {
tcg_debug_assert(idx == 0);
} else if (idx <= TB_EXIT_IDXMAX) {
#ifdef CONFIG_DEBUG_TCG
/* This is an exit following a goto_tb. Verify that we have
seen this numbered exit before, via tcg_gen_goto_tb. */
tcg_debug_assert(tcg_ctx->goto_tb_issue_mask & (1 << idx));
#endif
} else {
/* This is an exit via the exitreq label. */
tcg_debug_assert(idx == TB_EXIT_REQUESTED);
}
plugin_gen_disable_mem_helpers();
tcg_gen_op1i(INDEX_op_exit_tb, val);
}
void tcg_gen_goto_tb(unsigned idx)
{
/* We tested CF_NO_GOTO_TB in translator_use_goto_tb. */
tcg_debug_assert(!(tcg_ctx->gen_tb->cflags & CF_NO_GOTO_TB));
/* We only support two chained exits. */
tcg_debug_assert(idx <= TB_EXIT_IDXMAX);
#ifdef CONFIG_DEBUG_TCG
/* Verify that we haven't seen this numbered exit before. */
tcg_debug_assert((tcg_ctx->goto_tb_issue_mask & (1 << idx)) == 0);
tcg_ctx->goto_tb_issue_mask |= 1 << idx;
#endif
plugin_gen_disable_mem_helpers();
tcg_gen_op1i(INDEX_op_goto_tb, idx);
}
void tcg_gen_lookup_and_goto_ptr(void)
{
TCGv_ptr ptr;
if (tcg_ctx->gen_tb->cflags & CF_NO_GOTO_PTR) {
tcg_gen_exit_tb(NULL, 0);
return;
}
plugin_gen_disable_mem_helpers();
ptr = tcg_temp_ebb_new_ptr();
gen_helper_lookup_tb_ptr(ptr, cpu_env);
tcg_gen_op1i(INDEX_op_goto_ptr, tcgv_ptr_arg(ptr));
tcg_temp_free_ptr(ptr);
}
static inline MemOp tcg_canonicalize_memop(MemOp op, bool is64, bool st)
{
/* Trigger the asserts within as early as possible. */
unsigned a_bits = get_alignment_bits(op);
/* Prefer MO_ALIGN+MO_XX over MO_ALIGN_XX+MO_XX */
if (a_bits == (op & MO_SIZE)) {
op = (op & ~MO_AMASK) | MO_ALIGN;
}
switch (op & MO_SIZE) {
case MO_8:
op &= ~MO_BSWAP;
break;
case MO_16:
break;
case MO_32:
if (!is64) {
op &= ~MO_SIGN;
}
break;
case MO_64:
if (is64) {
op &= ~MO_SIGN;
break;
}
/* fall through */
default:
g_assert_not_reached();
}
if (st) {
op &= ~MO_SIGN;
}
return op;
}
static void gen_ldst_i32(TCGOpcode opc, TCGv_i32 val, TCGv addr,
MemOp memop, TCGArg idx)
{
MemOpIdx oi = make_memop_idx(memop, idx);
#if TARGET_LONG_BITS == 32
tcg_gen_op3i_i32(opc, val, addr, oi);
#else
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_op4i_i32(opc, val, TCGV_LOW(addr), TCGV_HIGH(addr), oi);
} else {
tcg_gen_op3(opc, tcgv_i32_arg(val), tcgv_i64_arg(addr), oi);
}
#endif
}
static void gen_ldst_i64(TCGOpcode opc, TCGv_i64 val, TCGv addr,
MemOp memop, TCGArg idx)
{
MemOpIdx oi = make_memop_idx(memop, idx);
#if TARGET_LONG_BITS == 32
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_op4i_i32(opc, TCGV_LOW(val), TCGV_HIGH(val), addr, oi);
} else {
tcg_gen_op3(opc, tcgv_i64_arg(val), tcgv_i32_arg(addr), oi);
}
#else
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_op5i_i32(opc, TCGV_LOW(val), TCGV_HIGH(val),
TCGV_LOW(addr), TCGV_HIGH(addr), oi);
} else {
tcg_gen_op3i_i64(opc, val, addr, oi);
}
#endif
}
static void tcg_gen_req_mo(TCGBar type)
{
#ifdef TCG_GUEST_DEFAULT_MO
type &= TCG_GUEST_DEFAULT_MO;
#endif
type &= ~TCG_TARGET_DEFAULT_MO;
if (type) {
tcg_gen_mb(type | TCG_BAR_SC);
}
}
static inline TCGv plugin_prep_mem_callbacks(TCGv vaddr)
{
#ifdef CONFIG_PLUGIN
if (tcg_ctx->plugin_insn != NULL) {
/* Save a copy of the vaddr for use after a load. */
TCGv temp = tcg_temp_new();
tcg_gen_mov_tl(temp, vaddr);
return temp;
}
#endif
return vaddr;
}
static void plugin_gen_mem_callbacks(TCGv vaddr, MemOpIdx oi,
enum qemu_plugin_mem_rw rw)
{
#ifdef CONFIG_PLUGIN
if (tcg_ctx->plugin_insn != NULL) {
qemu_plugin_meminfo_t info = make_plugin_meminfo(oi, rw);
plugin_gen_empty_mem_callback(vaddr, info);
tcg_temp_free(vaddr);
}
#endif
}
void tcg_gen_qemu_ld_i32(TCGv_i32 val, TCGv addr, TCGArg idx, MemOp memop)
{
MemOp orig_memop;
MemOpIdx oi;
tcg_gen_req_mo(TCG_MO_LD_LD | TCG_MO_ST_LD);
memop = tcg_canonicalize_memop(memop, 0, 0);
oi = make_memop_idx(memop, idx);
orig_memop = memop;
if (!TCG_TARGET_HAS_MEMORY_BSWAP && (memop & MO_BSWAP)) {
memop &= ~MO_BSWAP;
/* The bswap primitive benefits from zero-extended input. */
if ((memop & MO_SSIZE) == MO_SW) {
memop &= ~MO_SIGN;
}
}
addr = plugin_prep_mem_callbacks(addr);
gen_ldst_i32(INDEX_op_qemu_ld_i32, val, addr, memop, idx);
plugin_gen_mem_callbacks(addr, oi, QEMU_PLUGIN_MEM_R);
if ((orig_memop ^ memop) & MO_BSWAP) {
switch (orig_memop & MO_SIZE) {
case MO_16:
tcg_gen_bswap16_i32(val, val, (orig_memop & MO_SIGN
? TCG_BSWAP_IZ | TCG_BSWAP_OS
: TCG_BSWAP_IZ | TCG_BSWAP_OZ));
break;
case MO_32:
tcg_gen_bswap32_i32(val, val);
break;
default:
g_assert_not_reached();
}
}
}
void tcg_gen_qemu_st_i32(TCGv_i32 val, TCGv addr, TCGArg idx, MemOp memop)
{
TCGv_i32 swap = NULL;
MemOpIdx oi;
tcg_gen_req_mo(TCG_MO_LD_ST | TCG_MO_ST_ST);
memop = tcg_canonicalize_memop(memop, 0, 1);
oi = make_memop_idx(memop, idx);
if (!TCG_TARGET_HAS_MEMORY_BSWAP && (memop & MO_BSWAP)) {
swap = tcg_temp_ebb_new_i32();
switch (memop & MO_SIZE) {
case MO_16:
tcg_gen_bswap16_i32(swap, val, 0);
break;
case MO_32:
tcg_gen_bswap32_i32(swap, val);
break;
default:
g_assert_not_reached();
}
val = swap;
memop &= ~MO_BSWAP;
}
addr = plugin_prep_mem_callbacks(addr);
if (TCG_TARGET_HAS_qemu_st8_i32 && (memop & MO_SIZE) == MO_8) {
gen_ldst_i32(INDEX_op_qemu_st8_i32, val, addr, memop, idx);
} else {
gen_ldst_i32(INDEX_op_qemu_st_i32, val, addr, memop, idx);
}
plugin_gen_mem_callbacks(addr, oi, QEMU_PLUGIN_MEM_W);
if (swap) {
tcg_temp_free_i32(swap);
}
}
void tcg_gen_qemu_ld_i64(TCGv_i64 val, TCGv addr, TCGArg idx, MemOp memop)
{
MemOp orig_memop;
MemOpIdx oi;
if (TCG_TARGET_REG_BITS == 32 && (memop & MO_SIZE) < MO_64) {
tcg_gen_qemu_ld_i32(TCGV_LOW(val), addr, idx, memop);
if (memop & MO_SIGN) {
tcg_gen_sari_i32(TCGV_HIGH(val), TCGV_LOW(val), 31);
} else {
tcg_gen_movi_i32(TCGV_HIGH(val), 0);
}
return;
}
tcg_gen_req_mo(TCG_MO_LD_LD | TCG_MO_ST_LD);
memop = tcg_canonicalize_memop(memop, 1, 0);
oi = make_memop_idx(memop, idx);
orig_memop = memop;
if (!TCG_TARGET_HAS_MEMORY_BSWAP && (memop & MO_BSWAP)) {
memop &= ~MO_BSWAP;
/* The bswap primitive benefits from zero-extended input. */
if ((memop & MO_SIGN) && (memop & MO_SIZE) < MO_64) {
memop &= ~MO_SIGN;
}
}
addr = plugin_prep_mem_callbacks(addr);
gen_ldst_i64(INDEX_op_qemu_ld_i64, val, addr, memop, idx);
plugin_gen_mem_callbacks(addr, oi, QEMU_PLUGIN_MEM_R);
if ((orig_memop ^ memop) & MO_BSWAP) {
int flags = (orig_memop & MO_SIGN
? TCG_BSWAP_IZ | TCG_BSWAP_OS
: TCG_BSWAP_IZ | TCG_BSWAP_OZ);
switch (orig_memop & MO_SIZE) {
case MO_16:
tcg_gen_bswap16_i64(val, val, flags);
break;
case MO_32:
tcg_gen_bswap32_i64(val, val, flags);
break;
case MO_64:
tcg_gen_bswap64_i64(val, val);
break;
default:
g_assert_not_reached();
}
}
}
void tcg_gen_qemu_st_i64(TCGv_i64 val, TCGv addr, TCGArg idx, MemOp memop)
{
TCGv_i64 swap = NULL;
MemOpIdx oi;
if (TCG_TARGET_REG_BITS == 32 && (memop & MO_SIZE) < MO_64) {
tcg_gen_qemu_st_i32(TCGV_LOW(val), addr, idx, memop);
return;
}
tcg_gen_req_mo(TCG_MO_LD_ST | TCG_MO_ST_ST);
memop = tcg_canonicalize_memop(memop, 1, 1);
oi = make_memop_idx(memop, idx);
if (!TCG_TARGET_HAS_MEMORY_BSWAP && (memop & MO_BSWAP)) {
swap = tcg_temp_ebb_new_i64();
switch (memop & MO_SIZE) {
case MO_16:
tcg_gen_bswap16_i64(swap, val, 0);
break;
case MO_32:
tcg_gen_bswap32_i64(swap, val, 0);
break;
case MO_64:
tcg_gen_bswap64_i64(swap, val);
break;
default:
g_assert_not_reached();
}
val = swap;
memop &= ~MO_BSWAP;
}
addr = plugin_prep_mem_callbacks(addr);
gen_ldst_i64(INDEX_op_qemu_st_i64, val, addr, memop, idx);
plugin_gen_mem_callbacks(addr, oi, QEMU_PLUGIN_MEM_W);
if (swap) {
tcg_temp_free_i64(swap);
}
}
static void canonicalize_memop_i128_as_i64(MemOp ret[2], MemOp orig)
{
MemOp mop_1 = orig, mop_2;
tcg_debug_assert((orig & MO_SIZE) == MO_128);
tcg_debug_assert((orig & MO_SIGN) == 0);
/* Use a memory ordering implemented by the host. */
if (!TCG_TARGET_HAS_MEMORY_BSWAP && (orig & MO_BSWAP)) {
mop_1 &= ~MO_BSWAP;
}
/* Reduce the size to 64-bit. */
mop_1 = (mop_1 & ~MO_SIZE) | MO_64;
/* Retain the alignment constraints of the original. */
switch (orig & MO_AMASK) {
case MO_UNALN:
case MO_ALIGN_2:
case MO_ALIGN_4:
mop_2 = mop_1;
break;
case MO_ALIGN_8:
/* Prefer MO_ALIGN+MO_64 to MO_ALIGN_8+MO_64. */
mop_1 = (mop_1 & ~MO_AMASK) | MO_ALIGN;
mop_2 = mop_1;
break;
case MO_ALIGN:
/* Second has 8-byte alignment; first has 16-byte alignment. */
mop_2 = mop_1;
mop_1 = (mop_1 & ~MO_AMASK) | MO_ALIGN_16;
break;
case MO_ALIGN_16:
case MO_ALIGN_32:
case MO_ALIGN_64:
/* Second has 8-byte alignment; first retains original. */
mop_2 = (mop_1 & ~MO_AMASK) | MO_ALIGN;
break;
default:
g_assert_not_reached();
}
ret[0] = mop_1;
ret[1] = mop_2;
}
void tcg_gen_qemu_ld_i128(TCGv_i128 val, TCGv addr, TCGArg idx, MemOp memop)
{
MemOp mop[2];
TCGv addr_p8;
TCGv_i64 x, y;
canonicalize_memop_i128_as_i64(mop, memop);
tcg_gen_req_mo(TCG_MO_LD_LD | TCG_MO_ST_LD);
addr = plugin_prep_mem_callbacks(addr);
/* TODO: respect atomicity of the operation. */
/* TODO: allow the tcg backend to see the whole operation. */
/*
* Since there are no global TCGv_i128, there is no visible state
* changed if the second load faults. Load directly into the two
* subwords.
*/
if ((memop & MO_BSWAP) == MO_LE) {
x = TCGV128_LOW(val);
y = TCGV128_HIGH(val);
} else {
x = TCGV128_HIGH(val);
y = TCGV128_LOW(val);
}
gen_ldst_i64(INDEX_op_qemu_ld_i64, x, addr, mop[0], idx);
if ((mop[0] ^ memop) & MO_BSWAP) {
tcg_gen_bswap64_i64(x, x);
}
addr_p8 = tcg_temp_new();
tcg_gen_addi_tl(addr_p8, addr, 8);
gen_ldst_i64(INDEX_op_qemu_ld_i64, y, addr_p8, mop[1], idx);
tcg_temp_free(addr_p8);
if ((mop[0] ^ memop) & MO_BSWAP) {
tcg_gen_bswap64_i64(y, y);
}
plugin_gen_mem_callbacks(addr, make_memop_idx(memop, idx),
QEMU_PLUGIN_MEM_R);
}
void tcg_gen_qemu_st_i128(TCGv_i128 val, TCGv addr, TCGArg idx, MemOp memop)
{
MemOp mop[2];
TCGv addr_p8;
TCGv_i64 x, y;
canonicalize_memop_i128_as_i64(mop, memop);
tcg_gen_req_mo(TCG_MO_ST_LD | TCG_MO_ST_ST);
addr = plugin_prep_mem_callbacks(addr);
/* TODO: respect atomicity of the operation. */
/* TODO: allow the tcg backend to see the whole operation. */
if ((memop & MO_BSWAP) == MO_LE) {
x = TCGV128_LOW(val);
y = TCGV128_HIGH(val);
} else {
x = TCGV128_HIGH(val);
y = TCGV128_LOW(val);
}
addr_p8 = tcg_temp_new();
if ((mop[0] ^ memop) & MO_BSWAP) {
TCGv_i64 t = tcg_temp_ebb_new_i64();
tcg_gen_bswap64_i64(t, x);
gen_ldst_i64(INDEX_op_qemu_st_i64, t, addr, mop[0], idx);
tcg_gen_bswap64_i64(t, y);
tcg_gen_addi_tl(addr_p8, addr, 8);
gen_ldst_i64(INDEX_op_qemu_st_i64, t, addr_p8, mop[1], idx);
tcg_temp_free_i64(t);
} else {
gen_ldst_i64(INDEX_op_qemu_st_i64, x, addr, mop[0], idx);
tcg_gen_addi_tl(addr_p8, addr, 8);
gen_ldst_i64(INDEX_op_qemu_st_i64, y, addr_p8, mop[1], idx);
}
tcg_temp_free(addr_p8);
plugin_gen_mem_callbacks(addr, make_memop_idx(memop, idx),
QEMU_PLUGIN_MEM_W);
}
static void tcg_gen_ext_i32(TCGv_i32 ret, TCGv_i32 val, MemOp opc)
{
switch (opc & MO_SSIZE) {
case MO_SB:
tcg_gen_ext8s_i32(ret, val);
break;
case MO_UB:
tcg_gen_ext8u_i32(ret, val);
break;
case MO_SW:
tcg_gen_ext16s_i32(ret, val);
break;
case MO_UW:
tcg_gen_ext16u_i32(ret, val);
break;
default:
tcg_gen_mov_i32(ret, val);
break;
}
}
static void tcg_gen_ext_i64(TCGv_i64 ret, TCGv_i64 val, MemOp opc)
{
switch (opc & MO_SSIZE) {
case MO_SB:
tcg_gen_ext8s_i64(ret, val);
break;
case MO_UB:
tcg_gen_ext8u_i64(ret, val);
break;
case MO_SW:
tcg_gen_ext16s_i64(ret, val);
break;
case MO_UW:
tcg_gen_ext16u_i64(ret, val);
break;
case MO_SL:
tcg_gen_ext32s_i64(ret, val);
break;
case MO_UL:
tcg_gen_ext32u_i64(ret, val);
break;
default:
tcg_gen_mov_i64(ret, val);
break;
}
}
typedef void (*gen_atomic_cx_i32)(TCGv_i32, TCGv_env, TCGv,
TCGv_i32, TCGv_i32, TCGv_i32);
typedef void (*gen_atomic_cx_i64)(TCGv_i64, TCGv_env, TCGv,
TCGv_i64, TCGv_i64, TCGv_i32);
typedef void (*gen_atomic_cx_i128)(TCGv_i128, TCGv_env, TCGv,
TCGv_i128, TCGv_i128, TCGv_i32);
typedef void (*gen_atomic_op_i32)(TCGv_i32, TCGv_env, TCGv,
TCGv_i32, TCGv_i32);
typedef void (*gen_atomic_op_i64)(TCGv_i64, TCGv_env, TCGv,
TCGv_i64, TCGv_i32);
#ifdef CONFIG_ATOMIC64
# define WITH_ATOMIC64(X) X,
#else
# define WITH_ATOMIC64(X)
#endif
#ifdef CONFIG_CMPXCHG128
# define WITH_ATOMIC128(X) X,
#else
# define WITH_ATOMIC128(X)
#endif
static void * const table_cmpxchg[(MO_SIZE | MO_BSWAP) + 1] = {
[MO_8] = gen_helper_atomic_cmpxchgb,
[MO_16 | MO_LE] = gen_helper_atomic_cmpxchgw_le,
[MO_16 | MO_BE] = gen_helper_atomic_cmpxchgw_be,
[MO_32 | MO_LE] = gen_helper_atomic_cmpxchgl_le,
[MO_32 | MO_BE] = gen_helper_atomic_cmpxchgl_be,
WITH_ATOMIC64([MO_64 | MO_LE] = gen_helper_atomic_cmpxchgq_le)
WITH_ATOMIC64([MO_64 | MO_BE] = gen_helper_atomic_cmpxchgq_be)
WITH_ATOMIC128([MO_128 | MO_LE] = gen_helper_atomic_cmpxchgo_le)
WITH_ATOMIC128([MO_128 | MO_BE] = gen_helper_atomic_cmpxchgo_be)
};
void tcg_gen_nonatomic_cmpxchg_i32(TCGv_i32 retv, TCGv addr, TCGv_i32 cmpv,
TCGv_i32 newv, TCGArg idx, MemOp memop)
{
TCGv_i32 t1 = tcg_temp_ebb_new_i32();
TCGv_i32 t2 = tcg_temp_ebb_new_i32();
tcg_gen_ext_i32(t2, cmpv, memop & MO_SIZE);
tcg_gen_qemu_ld_i32(t1, addr, idx, memop & ~MO_SIGN);
tcg_gen_movcond_i32(TCG_COND_EQ, t2, t1, t2, newv, t1);
tcg_gen_qemu_st_i32(t2, addr, idx, memop);
tcg_temp_free_i32(t2);
if (memop & MO_SIGN) {
tcg_gen_ext_i32(retv, t1, memop);
} else {
tcg_gen_mov_i32(retv, t1);
}
tcg_temp_free_i32(t1);
}
void tcg_gen_atomic_cmpxchg_i32(TCGv_i32 retv, TCGv addr, TCGv_i32 cmpv,
TCGv_i32 newv, TCGArg idx, MemOp memop)
{
gen_atomic_cx_i32 gen;
MemOpIdx oi;
if (!(tcg_ctx->gen_tb->cflags & CF_PARALLEL)) {
tcg_gen_nonatomic_cmpxchg_i32(retv, addr, cmpv, newv, idx, memop);
return;
}
memop = tcg_canonicalize_memop(memop, 0, 0);
gen = table_cmpxchg[memop & (MO_SIZE | MO_BSWAP)];
tcg_debug_assert(gen != NULL);
oi = make_memop_idx(memop & ~MO_SIGN, idx);
gen(retv, cpu_env, addr, cmpv, newv, tcg_constant_i32(oi));
if (memop & MO_SIGN) {
tcg_gen_ext_i32(retv, retv, memop);
}
}
void tcg_gen_nonatomic_cmpxchg_i64(TCGv_i64 retv, TCGv addr, TCGv_i64 cmpv,
TCGv_i64 newv, TCGArg idx, MemOp memop)
{
TCGv_i64 t1, t2;
if (TCG_TARGET_REG_BITS == 32 && (memop & MO_SIZE) < MO_64) {
tcg_gen_nonatomic_cmpxchg_i32(TCGV_LOW(retv), addr, TCGV_LOW(cmpv),
TCGV_LOW(newv), idx, memop);
if (memop & MO_SIGN) {
tcg_gen_sari_i32(TCGV_HIGH(retv), TCGV_LOW(retv), 31);
} else {
tcg_gen_movi_i32(TCGV_HIGH(retv), 0);
}
return;
}
t1 = tcg_temp_ebb_new_i64();
t2 = tcg_temp_ebb_new_i64();
tcg_gen_ext_i64(t2, cmpv, memop & MO_SIZE);
tcg_gen_qemu_ld_i64(t1, addr, idx, memop & ~MO_SIGN);
tcg_gen_movcond_i64(TCG_COND_EQ, t2, t1, t2, newv, t1);
tcg_gen_qemu_st_i64(t2, addr, idx, memop);
tcg_temp_free_i64(t2);
if (memop & MO_SIGN) {
tcg_gen_ext_i64(retv, t1, memop);
} else {
tcg_gen_mov_i64(retv, t1);
}
tcg_temp_free_i64(t1);
}
void tcg_gen_atomic_cmpxchg_i64(TCGv_i64 retv, TCGv addr, TCGv_i64 cmpv,
TCGv_i64 newv, TCGArg idx, MemOp memop)
{
if (!(tcg_ctx->gen_tb->cflags & CF_PARALLEL)) {
tcg_gen_nonatomic_cmpxchg_i64(retv, addr, cmpv, newv, idx, memop);
return;
}
if ((memop & MO_SIZE) == MO_64) {
gen_atomic_cx_i64 gen;
memop = tcg_canonicalize_memop(memop, 1, 0);
gen = table_cmpxchg[memop & (MO_SIZE | MO_BSWAP)];
if (gen) {
MemOpIdx oi = make_memop_idx(memop, idx);
gen(retv, cpu_env, addr, cmpv, newv, tcg_constant_i32(oi));
return;
}
gen_helper_exit_atomic(cpu_env);
/*
* Produce a result for a well-formed opcode stream. This satisfies
* liveness for set before used, which happens before this dead code
* is removed.
*/
tcg_gen_movi_i64(retv, 0);
return;
}
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_atomic_cmpxchg_i32(TCGV_LOW(retv), addr, TCGV_LOW(cmpv),
TCGV_LOW(newv), idx, memop);
if (memop & MO_SIGN) {
tcg_gen_sari_i32(TCGV_HIGH(retv), TCGV_LOW(retv), 31);
} else {
tcg_gen_movi_i32(TCGV_HIGH(retv), 0);
}
} else {
TCGv_i32 c32 = tcg_temp_ebb_new_i32();
TCGv_i32 n32 = tcg_temp_ebb_new_i32();
TCGv_i32 r32 = tcg_temp_ebb_new_i32();
tcg_gen_extrl_i64_i32(c32, cmpv);
tcg_gen_extrl_i64_i32(n32, newv);
tcg_gen_atomic_cmpxchg_i32(r32, addr, c32, n32, idx, memop & ~MO_SIGN);
tcg_temp_free_i32(c32);
tcg_temp_free_i32(n32);
tcg_gen_extu_i32_i64(retv, r32);
tcg_temp_free_i32(r32);
if (memop & MO_SIGN) {
tcg_gen_ext_i64(retv, retv, memop);
}
}
}
void tcg_gen_nonatomic_cmpxchg_i128(TCGv_i128 retv, TCGv addr, TCGv_i128 cmpv,
TCGv_i128 newv, TCGArg idx, MemOp memop)
{
if (TCG_TARGET_REG_BITS == 32) {
/* Inline expansion below is simply too large for 32-bit hosts. */
gen_atomic_cx_i128 gen = ((memop & MO_BSWAP) == MO_LE
? gen_helper_nonatomic_cmpxchgo_le
: gen_helper_nonatomic_cmpxchgo_be);
MemOpIdx oi = make_memop_idx(memop, idx);
tcg_debug_assert((memop & MO_SIZE) == MO_128);
tcg_debug_assert((memop & MO_SIGN) == 0);
gen(retv, cpu_env, addr, cmpv, newv, tcg_constant_i32(oi));
} else {
TCGv_i128 oldv = tcg_temp_ebb_new_i128();
TCGv_i128 tmpv = tcg_temp_ebb_new_i128();
TCGv_i64 t0 = tcg_temp_ebb_new_i64();
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 z = tcg_constant_i64(0);
tcg_gen_qemu_ld_i128(oldv, addr, idx, memop);
/* Compare i128 */
tcg_gen_xor_i64(t0, TCGV128_LOW(oldv), TCGV128_LOW(cmpv));
tcg_gen_xor_i64(t1, TCGV128_HIGH(oldv), TCGV128_HIGH(cmpv));
tcg_gen_or_i64(t0, t0, t1);
/* tmpv = equal ? newv : oldv */
tcg_gen_movcond_i64(TCG_COND_EQ, TCGV128_LOW(tmpv), t0, z,
TCGV128_LOW(newv), TCGV128_LOW(oldv));
tcg_gen_movcond_i64(TCG_COND_EQ, TCGV128_HIGH(tmpv), t0, z,
TCGV128_HIGH(newv), TCGV128_HIGH(oldv));
/* Unconditional writeback. */
tcg_gen_qemu_st_i128(tmpv, addr, idx, memop);
tcg_gen_mov_i128(retv, oldv);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_temp_free_i128(tmpv);
tcg_temp_free_i128(oldv);
}
}
void tcg_gen_atomic_cmpxchg_i128(TCGv_i128 retv, TCGv addr, TCGv_i128 cmpv,
TCGv_i128 newv, TCGArg idx, MemOp memop)
{
gen_atomic_cx_i128 gen;
if (!(tcg_ctx->gen_tb->cflags & CF_PARALLEL)) {
tcg_gen_nonatomic_cmpxchg_i128(retv, addr, cmpv, newv, idx, memop);
return;
}
tcg_debug_assert((memop & MO_SIZE) == MO_128);
tcg_debug_assert((memop & MO_SIGN) == 0);
gen = table_cmpxchg[memop & (MO_SIZE | MO_BSWAP)];
if (gen) {
MemOpIdx oi = make_memop_idx(memop, idx);
gen(retv, cpu_env, addr, cmpv, newv, tcg_constant_i32(oi));
return;
}
gen_helper_exit_atomic(cpu_env);
/*
* Produce a result for a well-formed opcode stream. This satisfies
* liveness for set before used, which happens before this dead code
* is removed.
*/
tcg_gen_movi_i64(TCGV128_LOW(retv), 0);
tcg_gen_movi_i64(TCGV128_HIGH(retv), 0);
}
static void do_nonatomic_op_i32(TCGv_i32 ret, TCGv addr, TCGv_i32 val,
TCGArg idx, MemOp memop, bool new_val,
void (*gen)(TCGv_i32, TCGv_i32, TCGv_i32))
{
TCGv_i32 t1 = tcg_temp_ebb_new_i32();
TCGv_i32 t2 = tcg_temp_ebb_new_i32();
memop = tcg_canonicalize_memop(memop, 0, 0);
tcg_gen_qemu_ld_i32(t1, addr, idx, memop);
tcg_gen_ext_i32(t2, val, memop);
gen(t2, t1, t2);
tcg_gen_qemu_st_i32(t2, addr, idx, memop);
tcg_gen_ext_i32(ret, (new_val ? t2 : t1), memop);
tcg_temp_free_i32(t1);
tcg_temp_free_i32(t2);
}
static void do_atomic_op_i32(TCGv_i32 ret, TCGv addr, TCGv_i32 val,
TCGArg idx, MemOp memop, void * const table[])
{
gen_atomic_op_i32 gen;
MemOpIdx oi;
memop = tcg_canonicalize_memop(memop, 0, 0);
gen = table[memop & (MO_SIZE | MO_BSWAP)];
tcg_debug_assert(gen != NULL);
oi = make_memop_idx(memop & ~MO_SIGN, idx);
gen(ret, cpu_env, addr, val, tcg_constant_i32(oi));
if (memop & MO_SIGN) {
tcg_gen_ext_i32(ret, ret, memop);
}
}
static void do_nonatomic_op_i64(TCGv_i64 ret, TCGv addr, TCGv_i64 val,
TCGArg idx, MemOp memop, bool new_val,
void (*gen)(TCGv_i64, TCGv_i64, TCGv_i64))
{
TCGv_i64 t1 = tcg_temp_ebb_new_i64();
TCGv_i64 t2 = tcg_temp_ebb_new_i64();
memop = tcg_canonicalize_memop(memop, 1, 0);
tcg_gen_qemu_ld_i64(t1, addr, idx, memop);
tcg_gen_ext_i64(t2, val, memop);
gen(t2, t1, t2);
tcg_gen_qemu_st_i64(t2, addr, idx, memop);
tcg_gen_ext_i64(ret, (new_val ? t2 : t1), memop);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
}
static void do_atomic_op_i64(TCGv_i64 ret, TCGv addr, TCGv_i64 val,
TCGArg idx, MemOp memop, void * const table[])
{
memop = tcg_canonicalize_memop(memop, 1, 0);
if ((memop & MO_SIZE) == MO_64) {
#ifdef CONFIG_ATOMIC64
gen_atomic_op_i64 gen;
MemOpIdx oi;
gen = table[memop & (MO_SIZE | MO_BSWAP)];
tcg_debug_assert(gen != NULL);
oi = make_memop_idx(memop & ~MO_SIGN, idx);
gen(ret, cpu_env, addr, val, tcg_constant_i32(oi));
#else
gen_helper_exit_atomic(cpu_env);
/* Produce a result, so that we have a well-formed opcode stream
with respect to uses of the result in the (dead) code following. */
tcg_gen_movi_i64(ret, 0);
#endif /* CONFIG_ATOMIC64 */
} else {
TCGv_i32 v32 = tcg_temp_ebb_new_i32();
TCGv_i32 r32 = tcg_temp_ebb_new_i32();
tcg_gen_extrl_i64_i32(v32, val);
do_atomic_op_i32(r32, addr, v32, idx, memop & ~MO_SIGN, table);
tcg_temp_free_i32(v32);
tcg_gen_extu_i32_i64(ret, r32);
tcg_temp_free_i32(r32);
if (memop & MO_SIGN) {
tcg_gen_ext_i64(ret, ret, memop);
}
}
}
#define GEN_ATOMIC_HELPER(NAME, OP, NEW) \
static void * const table_##NAME[(MO_SIZE | MO_BSWAP) + 1] = { \
[MO_8] = gen_helper_atomic_##NAME##b, \
[MO_16 | MO_LE] = gen_helper_atomic_##NAME##w_le, \
[MO_16 | MO_BE] = gen_helper_atomic_##NAME##w_be, \
[MO_32 | MO_LE] = gen_helper_atomic_##NAME##l_le, \
[MO_32 | MO_BE] = gen_helper_atomic_##NAME##l_be, \
WITH_ATOMIC64([MO_64 | MO_LE] = gen_helper_atomic_##NAME##q_le) \
WITH_ATOMIC64([MO_64 | MO_BE] = gen_helper_atomic_##NAME##q_be) \
}; \
void tcg_gen_atomic_##NAME##_i32 \
(TCGv_i32 ret, TCGv addr, TCGv_i32 val, TCGArg idx, MemOp memop) \
{ \
if (tcg_ctx->gen_tb->cflags & CF_PARALLEL) { \
do_atomic_op_i32(ret, addr, val, idx, memop, table_##NAME); \
} else { \
do_nonatomic_op_i32(ret, addr, val, idx, memop, NEW, \
tcg_gen_##OP##_i32); \
} \
} \
void tcg_gen_atomic_##NAME##_i64 \
(TCGv_i64 ret, TCGv addr, TCGv_i64 val, TCGArg idx, MemOp memop) \
{ \
if (tcg_ctx->gen_tb->cflags & CF_PARALLEL) { \
do_atomic_op_i64(ret, addr, val, idx, memop, table_##NAME); \
} else { \
do_nonatomic_op_i64(ret, addr, val, idx, memop, NEW, \
tcg_gen_##OP##_i64); \
} \
}
GEN_ATOMIC_HELPER(fetch_add, add, 0)
GEN_ATOMIC_HELPER(fetch_and, and, 0)
GEN_ATOMIC_HELPER(fetch_or, or, 0)
GEN_ATOMIC_HELPER(fetch_xor, xor, 0)
GEN_ATOMIC_HELPER(fetch_smin, smin, 0)
GEN_ATOMIC_HELPER(fetch_umin, umin, 0)
GEN_ATOMIC_HELPER(fetch_smax, smax, 0)
GEN_ATOMIC_HELPER(fetch_umax, umax, 0)
GEN_ATOMIC_HELPER(add_fetch, add, 1)
GEN_ATOMIC_HELPER(and_fetch, and, 1)
GEN_ATOMIC_HELPER(or_fetch, or, 1)
GEN_ATOMIC_HELPER(xor_fetch, xor, 1)
GEN_ATOMIC_HELPER(smin_fetch, smin, 1)
GEN_ATOMIC_HELPER(umin_fetch, umin, 1)
GEN_ATOMIC_HELPER(smax_fetch, smax, 1)
GEN_ATOMIC_HELPER(umax_fetch, umax, 1)
static void tcg_gen_mov2_i32(TCGv_i32 r, TCGv_i32 a, TCGv_i32 b)
{
tcg_gen_mov_i32(r, b);
}
static void tcg_gen_mov2_i64(TCGv_i64 r, TCGv_i64 a, TCGv_i64 b)
{
tcg_gen_mov_i64(r, b);
}
GEN_ATOMIC_HELPER(xchg, mov2, 0)
#undef GEN_ATOMIC_HELPER
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