388 lines
12 KiB
C
388 lines
12 KiB
C
/*
|
|
* Stack-less Just-In-Time compiler
|
|
*
|
|
* Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification, are
|
|
* permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
* conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
* of conditions and the following disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
|
* SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/* mips 64-bit arch dependent functions. */
|
|
|
|
static sljit_s32 emit_copysign(struct sljit_compiler *compiler, sljit_s32 op,
|
|
sljit_s32 src1, sljit_s32 src2, sljit_s32 dst)
|
|
{
|
|
FAIL_IF(push_inst(compiler, SELECT_OP(DMFC1, MFC1) | T(TMP_REG1) | FS(src1), DR(TMP_REG1)));
|
|
FAIL_IF(push_inst(compiler, SELECT_OP(DMFC1, MFC1) | T(TMP_REG2) | FS(src2), DR(TMP_REG2)));
|
|
FAIL_IF(push_inst(compiler, XOR | S(TMP_REG2) | T(TMP_REG1) | D(TMP_REG2), DR(TMP_REG2)));
|
|
FAIL_IF(push_inst(compiler, SELECT_OP(DSRL32, SRL) | T(TMP_REG2) | D(TMP_REG2) | SH_IMM(31), DR(TMP_REG2)));
|
|
FAIL_IF(push_inst(compiler, SELECT_OP(DSLL32, SLL) | T(TMP_REG2) | D(TMP_REG2) | SH_IMM(31), DR(TMP_REG2)));
|
|
FAIL_IF(push_inst(compiler, XOR | S(TMP_REG1) | T(TMP_REG2) | D(TMP_REG1), DR(TMP_REG1)));
|
|
FAIL_IF(push_inst(compiler, SELECT_OP(DMTC1, MTC1) | T(TMP_REG1) | FS(dst), MOVABLE_INS));
|
|
#if !defined(SLJIT_MIPS_REV) || SLJIT_MIPS_REV <= 1
|
|
if (!(op & SLJIT_32))
|
|
return push_inst(compiler, NOP, UNMOVABLE_INS);
|
|
#endif /* MIPS III */
|
|
return SLJIT_SUCCESS;
|
|
}
|
|
|
|
static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 dst_ar, sljit_sw imm)
|
|
{
|
|
sljit_s32 shift = 32;
|
|
sljit_s32 shift2;
|
|
sljit_s32 inv = 0;
|
|
sljit_ins ins;
|
|
sljit_uw uimm;
|
|
|
|
if (!(imm & ~0xffff))
|
|
return push_inst(compiler, ORI | SA(0) | TA(dst_ar) | IMM(imm), dst_ar);
|
|
|
|
if (imm < 0 && imm >= SIMM_MIN)
|
|
return push_inst(compiler, ADDIU | SA(0) | TA(dst_ar) | IMM(imm), dst_ar);
|
|
|
|
if (imm <= 0x7fffffffl && imm >= -0x80000000l) {
|
|
FAIL_IF(push_inst(compiler, LUI | TA(dst_ar) | IMM(imm >> 16), dst_ar));
|
|
return (imm & 0xffff) ? push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(imm), dst_ar) : SLJIT_SUCCESS;
|
|
}
|
|
|
|
/* Zero extended number. */
|
|
uimm = (sljit_uw)imm;
|
|
if (imm < 0) {
|
|
uimm = ~(sljit_uw)imm;
|
|
inv = 1;
|
|
}
|
|
|
|
while (!(uimm & 0xff00000000000000l)) {
|
|
shift -= 8;
|
|
uimm <<= 8;
|
|
}
|
|
|
|
if (!(uimm & 0xf000000000000000l)) {
|
|
shift -= 4;
|
|
uimm <<= 4;
|
|
}
|
|
|
|
if (!(uimm & 0xc000000000000000l)) {
|
|
shift -= 2;
|
|
uimm <<= 2;
|
|
}
|
|
|
|
if ((sljit_sw)uimm < 0) {
|
|
uimm >>= 1;
|
|
shift += 1;
|
|
}
|
|
SLJIT_ASSERT(((uimm & 0xc000000000000000l) == 0x4000000000000000l) && (shift > 0) && (shift <= 32));
|
|
|
|
if (inv)
|
|
uimm = ~uimm;
|
|
|
|
FAIL_IF(push_inst(compiler, LUI | TA(dst_ar) | IMM(uimm >> 48), dst_ar));
|
|
if (uimm & 0x0000ffff00000000l)
|
|
FAIL_IF(push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(uimm >> 32), dst_ar));
|
|
|
|
imm &= (1l << shift) - 1;
|
|
if (!(imm & ~0xffff)) {
|
|
ins = (shift == 32) ? DSLL32 : DSLL;
|
|
if (shift < 32)
|
|
ins |= SH_IMM(shift);
|
|
FAIL_IF(push_inst(compiler, ins | TA(dst_ar) | DA(dst_ar), dst_ar));
|
|
return !(imm & 0xffff) ? SLJIT_SUCCESS : push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(imm), dst_ar);
|
|
}
|
|
|
|
/* Double shifts needs to be performed. */
|
|
uimm <<= 32;
|
|
shift2 = shift - 16;
|
|
|
|
while (!(uimm & 0xf000000000000000l)) {
|
|
shift2 -= 4;
|
|
uimm <<= 4;
|
|
}
|
|
|
|
if (!(uimm & 0xc000000000000000l)) {
|
|
shift2 -= 2;
|
|
uimm <<= 2;
|
|
}
|
|
|
|
if (!(uimm & 0x8000000000000000l)) {
|
|
shift2--;
|
|
uimm <<= 1;
|
|
}
|
|
|
|
SLJIT_ASSERT((uimm & 0x8000000000000000l) && (shift2 > 0) && (shift2 <= 16));
|
|
|
|
FAIL_IF(push_inst(compiler, DSLL | TA(dst_ar) | DA(dst_ar) | SH_IMM(shift - shift2), dst_ar));
|
|
FAIL_IF(push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(uimm >> 48), dst_ar));
|
|
FAIL_IF(push_inst(compiler, DSLL | TA(dst_ar) | DA(dst_ar) | SH_IMM(shift2), dst_ar));
|
|
|
|
imm &= (1l << shift2) - 1;
|
|
return !(imm & 0xffff) ? SLJIT_SUCCESS : push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(imm), dst_ar);
|
|
}
|
|
|
|
static SLJIT_INLINE sljit_s32 emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw init_value)
|
|
{
|
|
FAIL_IF(push_inst(compiler, LUI | T(dst) | IMM(init_value >> 48), DR(dst)));
|
|
FAIL_IF(push_inst(compiler, ORI | S(dst) | T(dst) | IMM(init_value >> 32), DR(dst)));
|
|
FAIL_IF(push_inst(compiler, DSLL | T(dst) | D(dst) | SH_IMM(16), DR(dst)));
|
|
FAIL_IF(push_inst(compiler, ORI | S(dst) | T(dst) | IMM(init_value >> 16), DR(dst)));
|
|
FAIL_IF(push_inst(compiler, DSLL | T(dst) | D(dst) | SH_IMM(16), DR(dst)));
|
|
return push_inst(compiler, ORI | S(dst) | T(dst) | IMM(init_value), DR(dst));
|
|
}
|
|
|
|
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset64(struct sljit_compiler *compiler,
|
|
sljit_s32 freg, sljit_f64 value)
|
|
{
|
|
union {
|
|
sljit_sw imm;
|
|
sljit_f64 value;
|
|
} u;
|
|
|
|
CHECK_ERROR();
|
|
CHECK(check_sljit_emit_fset64(compiler, freg, value));
|
|
|
|
u.value = value;
|
|
|
|
if (u.imm == 0) {
|
|
FAIL_IF(push_inst(compiler, DMTC1 | TA(0) | FS(freg), MOVABLE_INS));
|
|
#if !defined(SLJIT_MIPS_REV) || SLJIT_MIPS_REV <= 1
|
|
FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
|
|
#endif /* MIPS III */
|
|
return SLJIT_SUCCESS;
|
|
}
|
|
|
|
FAIL_IF(load_immediate(compiler, DR(TMP_REG1), u.imm));
|
|
FAIL_IF(push_inst(compiler, DMTC1 | T(TMP_REG1) | FS(freg), MOVABLE_INS));
|
|
#if !defined(SLJIT_MIPS_REV) || SLJIT_MIPS_REV <= 1
|
|
FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
|
|
#endif /* MIPS III */
|
|
return SLJIT_SUCCESS;
|
|
}
|
|
|
|
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fcopy(struct sljit_compiler *compiler, sljit_s32 op,
|
|
sljit_s32 freg, sljit_s32 reg)
|
|
{
|
|
sljit_ins inst;
|
|
|
|
CHECK_ERROR();
|
|
CHECK(check_sljit_emit_fcopy(compiler, op, freg, reg));
|
|
|
|
inst = T(reg) | FS(freg);
|
|
|
|
if (GET_OPCODE(op) == SLJIT_COPY_TO_F64)
|
|
FAIL_IF(push_inst(compiler, SELECT_OP(DMTC1, MTC1) | inst, MOVABLE_INS));
|
|
else
|
|
FAIL_IF(push_inst(compiler, SELECT_OP(DMFC1, MFC1) | inst, DR(reg)));
|
|
|
|
#if !defined(SLJIT_MIPS_REV) || SLJIT_MIPS_REV <= 1
|
|
if (!(op & SLJIT_32))
|
|
return push_inst(compiler, NOP, UNMOVABLE_INS);
|
|
#endif /* MIPS III */
|
|
return SLJIT_SUCCESS;
|
|
}
|
|
|
|
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
|
|
{
|
|
sljit_ins *inst = (sljit_ins *)addr;
|
|
SLJIT_UNUSED_ARG(executable_offset);
|
|
|
|
SLJIT_UPDATE_WX_FLAGS(inst, inst + 6, 0);
|
|
inst[0] = (inst[0] & 0xffff0000) | ((sljit_ins)(new_target >> 48) & 0xffff);
|
|
inst[1] = (inst[1] & 0xffff0000) | ((sljit_ins)(new_target >> 32) & 0xffff);
|
|
inst[3] = (inst[3] & 0xffff0000) | ((sljit_ins)(new_target >> 16) & 0xffff);
|
|
inst[5] = (inst[5] & 0xffff0000) | ((sljit_ins)new_target & 0xffff);
|
|
SLJIT_UPDATE_WX_FLAGS(inst, inst + 6, 1);
|
|
inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
|
|
SLJIT_CACHE_FLUSH(inst, inst + 6);
|
|
}
|
|
|
|
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
|
|
{
|
|
sljit_set_jump_addr(addr, (sljit_uw)new_constant, executable_offset);
|
|
}
|
|
|
|
static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_ins *ins_ptr)
|
|
{
|
|
sljit_s32 arg_count = 0;
|
|
sljit_s32 word_arg_count = 0;
|
|
sljit_s32 float_arg_count = 0;
|
|
sljit_s32 types = 0;
|
|
sljit_ins prev_ins = *ins_ptr;
|
|
sljit_ins ins = NOP;
|
|
|
|
SLJIT_ASSERT(reg_map[TMP_REG2] == 4 && freg_map[TMP_FREG1] == 12);
|
|
|
|
arg_types >>= SLJIT_ARG_SHIFT;
|
|
|
|
while (arg_types) {
|
|
types = (types << SLJIT_ARG_SHIFT) | (arg_types & SLJIT_ARG_MASK);
|
|
|
|
switch (arg_types & SLJIT_ARG_MASK) {
|
|
case SLJIT_ARG_TYPE_F64:
|
|
case SLJIT_ARG_TYPE_F32:
|
|
arg_count++;
|
|
float_arg_count++;
|
|
break;
|
|
default:
|
|
arg_count++;
|
|
word_arg_count++;
|
|
break;
|
|
}
|
|
|
|
arg_types >>= SLJIT_ARG_SHIFT;
|
|
}
|
|
|
|
while (types) {
|
|
switch (types & SLJIT_ARG_MASK) {
|
|
case SLJIT_ARG_TYPE_F64:
|
|
if (arg_count != float_arg_count)
|
|
ins = MOV_fmt(FMT_D) | FS(float_arg_count) | FD(arg_count);
|
|
else if (arg_count == 1)
|
|
ins = MOV_fmt(FMT_D) | FS(SLJIT_FR0) | FD(TMP_FREG1);
|
|
arg_count--;
|
|
float_arg_count--;
|
|
break;
|
|
case SLJIT_ARG_TYPE_F32:
|
|
if (arg_count != float_arg_count)
|
|
ins = MOV_fmt(FMT_S) | FS(float_arg_count) | FD(arg_count);
|
|
else if (arg_count == 1)
|
|
ins = MOV_fmt(FMT_S) | FS(SLJIT_FR0) | FD(TMP_FREG1);
|
|
arg_count--;
|
|
float_arg_count--;
|
|
break;
|
|
default:
|
|
if (arg_count != word_arg_count)
|
|
ins = DADDU | S(word_arg_count) | TA(0) | D(arg_count);
|
|
else if (arg_count == 1)
|
|
ins = DADDU | S(SLJIT_R0) | TA(0) | DA(4);
|
|
arg_count--;
|
|
word_arg_count--;
|
|
break;
|
|
}
|
|
|
|
if (ins != NOP) {
|
|
if (prev_ins != NOP)
|
|
FAIL_IF(push_inst(compiler, prev_ins, MOVABLE_INS));
|
|
prev_ins = ins;
|
|
ins = NOP;
|
|
}
|
|
|
|
types >>= SLJIT_ARG_SHIFT;
|
|
}
|
|
|
|
*ins_ptr = prev_ins;
|
|
|
|
return SLJIT_SUCCESS;
|
|
}
|
|
|
|
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
|
|
sljit_s32 arg_types)
|
|
{
|
|
struct sljit_jump *jump;
|
|
sljit_ins ins = NOP;
|
|
|
|
CHECK_ERROR_PTR();
|
|
CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
|
|
|
|
jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
|
|
PTR_FAIL_IF(!jump);
|
|
set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
|
|
|
|
if (type & SLJIT_CALL_RETURN)
|
|
PTR_FAIL_IF(emit_stack_frame_release(compiler, 0, &ins));
|
|
|
|
if ((type & 0xff) != SLJIT_CALL_REG_ARG)
|
|
PTR_FAIL_IF(call_with_args(compiler, arg_types, &ins));
|
|
|
|
SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25);
|
|
|
|
if (ins == NOP && compiler->delay_slot != UNMOVABLE_INS)
|
|
jump->flags |= IS_MOVABLE;
|
|
|
|
if (!(type & SLJIT_CALL_RETURN)) {
|
|
jump->flags |= IS_JAL;
|
|
|
|
if ((type & 0xff) != SLJIT_CALL_REG_ARG)
|
|
jump->flags |= IS_CALL;
|
|
|
|
PTR_FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
|
|
} else
|
|
PTR_FAIL_IF(push_inst(compiler, JR | S(PIC_ADDR_REG), UNMOVABLE_INS));
|
|
|
|
jump->addr = compiler->size;
|
|
PTR_FAIL_IF(push_inst(compiler, ins, UNMOVABLE_INS));
|
|
|
|
/* Maximum number of instructions required for generating a constant. */
|
|
compiler->size += 6;
|
|
return jump;
|
|
}
|
|
|
|
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compiler, sljit_s32 type,
|
|
sljit_s32 arg_types,
|
|
sljit_s32 src, sljit_sw srcw)
|
|
{
|
|
sljit_ins ins = NOP;
|
|
|
|
CHECK_ERROR();
|
|
CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
|
|
|
|
if (src & SLJIT_MEM) {
|
|
ADJUST_LOCAL_OFFSET(src, srcw);
|
|
FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, DR(PIC_ADDR_REG), src, srcw));
|
|
src = PIC_ADDR_REG;
|
|
srcw = 0;
|
|
}
|
|
|
|
if ((type & 0xff) == SLJIT_CALL_REG_ARG) {
|
|
if (type & SLJIT_CALL_RETURN) {
|
|
if (src >= SLJIT_FIRST_SAVED_REG && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options))) {
|
|
FAIL_IF(push_inst(compiler, DADDU | S(src) | TA(0) | D(PIC_ADDR_REG), DR(PIC_ADDR_REG)));
|
|
src = PIC_ADDR_REG;
|
|
srcw = 0;
|
|
}
|
|
|
|
FAIL_IF(emit_stack_frame_release(compiler, 0, &ins));
|
|
|
|
if (ins != NOP)
|
|
FAIL_IF(push_inst(compiler, ins, MOVABLE_INS));
|
|
}
|
|
|
|
SLJIT_SKIP_CHECKS(compiler);
|
|
return sljit_emit_ijump(compiler, type, src, srcw);
|
|
}
|
|
|
|
SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG1);
|
|
|
|
if (src == SLJIT_IMM)
|
|
FAIL_IF(load_immediate(compiler, DR(PIC_ADDR_REG), srcw));
|
|
else if (src != PIC_ADDR_REG)
|
|
FAIL_IF(push_inst(compiler, DADDU | S(src) | TA(0) | D(PIC_ADDR_REG), DR(PIC_ADDR_REG)));
|
|
|
|
if (type & SLJIT_CALL_RETURN)
|
|
FAIL_IF(emit_stack_frame_release(compiler, 0, &ins));
|
|
|
|
FAIL_IF(call_with_args(compiler, arg_types, &ins));
|
|
|
|
/* Register input. */
|
|
if (!(type & SLJIT_CALL_RETURN))
|
|
FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
|
|
else
|
|
FAIL_IF(push_inst(compiler, JR | S(PIC_ADDR_REG), UNMOVABLE_INS));
|
|
return push_inst(compiler, ins, UNMOVABLE_INS);
|
|
}
|