Commit a32c1e41 authored by Damien George's avatar Damien George
Browse files

py: Improve native emitter; now supports more opcodes.

parent 36db6bcf
......@@ -561,6 +561,17 @@ STATIC void emit_call_with_imm_arg(emit_t *emit, mp_fun_kind_t fun_kind, void *f
#endif
}
// the first arg is stored in the code aligned on a machine_uint_t boundary
STATIC void emit_call_with_imm_arg_aligned(emit_t *emit, mp_fun_kind_t fun_kind, void *fun, machine_int_t arg_val, int arg_reg) {
need_reg_all(emit);
ASM_MOV_ALIGNED_IMM_TO_REG(arg_val, arg_reg);
#if N_X64
asm_x64_call_ind(emit->as, fun, REG_RAX);
#elif N_THUMB
asm_thumb_bl_ind(emit->as, mp_fun_table[fun_kind], fun_kind, REG_R3);
#endif
}
STATIC void emit_call_with_2_imm_args(emit_t *emit, mp_fun_kind_t fun_kind, void *fun, machine_int_t arg_val1, int arg_reg1, machine_int_t arg_val2, int arg_reg2) {
need_reg_all(emit);
ASM_MOV_IMM_TO_REG(arg_val1, arg_reg1);
......@@ -688,7 +699,7 @@ STATIC void emit_native_load_const_int(emit_t *emit, qstr qst) {
DEBUG_printf("load_const_int %s\n", qstr_str(st));
// for viper: load integer, check fits in 32 bits
emit_native_pre(emit);
emit_call_with_imm_arg(emit, MP_F_LOAD_CONST_INT, mp_obj_new_int_from_long_str, qst, REG_ARG_1);
emit_call_with_imm_arg(emit, MP_F_LOAD_CONST_INT, mp_obj_new_int_from_qstr, qst, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
......@@ -945,6 +956,8 @@ STATIC void emit_native_rot_three(emit_t *emit) {
STATIC void emit_native_jump(emit_t *emit, uint label) {
emit_native_pre(emit);
// need to commit stack because we are jumping elsewhere
need_stack_settled(emit);
#if N_X64
asm_x64_jmp_label(emit->as, label);
#elif N_THUMB
......@@ -953,21 +966,41 @@ STATIC void emit_native_jump(emit_t *emit, uint label) {
emit_post(emit);
}
STATIC void emit_native_pop_jump_pre_helper(emit_t *emit, uint label) {
STATIC void emit_native_jump_helper(emit_t *emit, uint label, bool pop) {
vtype_kind_t vtype = peek_vtype(emit);
if (vtype == VTYPE_BOOL) {
emit_pre_pop_reg(emit, &vtype, REG_RET);
if (!pop) {
adjust_stack(emit, 1);
}
} else if (vtype == VTYPE_PYOBJ) {
emit_pre_pop_reg(emit, &vtype, REG_ARG_1);
emit_call(emit, MP_F_OBJ_IS_TRUE, mp_obj_is_true);
if (!pop) {
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
} else {
printf("ViperTypeError: expecting a bool or pyobj, got %d\n", vtype);
assert(0);
}
// need to commit stack because we may jump elsewhere
need_stack_settled(emit);
}
STATIC void emit_native_pop_jump_if_true(emit_t *emit, uint label) {
emit_native_jump_helper(emit, label, true);
#if N_X64
asm_x64_test_r8_with_r8(emit->as, REG_RET, REG_RET);
asm_x64_jcc_label(emit->as, JCC_JNZ, label);
#elif N_THUMB
asm_thumb_cmp_rlo_i8(emit->as, REG_RET, 0);
asm_thumb_bcc_label(emit->as, THUMB_CC_NE, label);
#endif
emit_post(emit);
}
STATIC void emit_native_pop_jump_if_false(emit_t *emit, uint label) {
emit_native_pop_jump_pre_helper(emit, label);
emit_native_jump_helper(emit, label, true);
#if N_X64
asm_x64_test_r8_with_r8(emit->as, REG_RET, REG_RET);
asm_x64_jcc_label(emit->as, JCC_JZ, label);
......@@ -978,8 +1011,8 @@ STATIC void emit_native_pop_jump_if_false(emit_t *emit, uint label) {
emit_post(emit);
}
STATIC void emit_native_pop_jump_if_true(emit_t *emit, uint label) {
emit_native_pop_jump_pre_helper(emit, label);
STATIC void emit_native_jump_if_true_or_pop(emit_t *emit, uint label) {
emit_native_jump_helper(emit, label, false);
#if N_X64
asm_x64_test_r8_with_r8(emit->as, REG_RET, REG_RET);
asm_x64_jcc_label(emit->as, JCC_JNZ, label);
......@@ -987,22 +1020,31 @@ STATIC void emit_native_pop_jump_if_true(emit_t *emit, uint label) {
asm_thumb_cmp_rlo_i8(emit->as, REG_RET, 0);
asm_thumb_bcc_label(emit->as, THUMB_CC_NE, label);
#endif
adjust_stack(emit, -1);
emit_post(emit);
}
STATIC void emit_native_jump_if_true_or_pop(emit_t *emit, uint label) {
assert(0);
}
STATIC void emit_native_jump_if_false_or_pop(emit_t *emit, uint label) {
assert(0);
emit_native_jump_helper(emit, label, false);
#if N_X64
asm_x64_test_r8_with_r8(emit->as, REG_RET, REG_RET);
asm_x64_jcc_label(emit->as, JCC_JZ, label);
#elif N_THUMB
asm_thumb_cmp_rlo_i8(emit->as, REG_RET, 0);
asm_thumb_bcc_label(emit->as, THUMB_CC_EQ, label);
#endif
adjust_stack(emit, -1);
emit_post(emit);
}
STATIC void emit_native_break_loop(emit_t *emit, uint label, int except_depth) {
emit_native_jump(emit, label); // TODO properly
}
STATIC void emit_native_continue_loop(emit_t *emit, uint label, int except_depth) {
assert(0);
emit_native_jump(emit, label); // TODO properly
}
STATIC void emit_native_setup_with(emit_t *emit, uint label) {
// not supported, or could be with runtime call
assert(0);
......@@ -1037,7 +1079,7 @@ STATIC void emit_native_for_iter(emit_t *emit, uint label) {
emit_access_stack(emit, 1, &vtype, REG_ARG_1);
assert(vtype == VTYPE_PYOBJ);
emit_call(emit, MP_F_ITERNEXT, mp_iternext);
ASM_MOV_IMM_TO_REG((machine_uint_t)MP_OBJ_NULL, REG_TEMP1);
ASM_MOV_IMM_TO_REG((machine_uint_t)MP_OBJ_STOP_ITERATION, REG_TEMP1);
#if N_X64
asm_x64_cmp_r64_with_r64(emit->as, REG_RET, REG_TEMP1);
asm_x64_jcc_label(emit->as, JCC_JE, label);
......@@ -1203,14 +1245,27 @@ STATIC void emit_native_unpack_sequence(emit_t *emit, int n_args) {
}
STATIC void emit_native_unpack_ex(emit_t *emit, int n_left, int n_right) {
assert(0);
// TODO this is untested
DEBUG_printf("unpack_ex %d %d\n", n_left, n_right);
vtype_kind_t vtype_base;
emit_pre_pop_reg(emit, &vtype_base, REG_ARG_1); // arg1 = seq
assert(vtype_base == VTYPE_PYOBJ);
emit_get_stack_pointer_to_reg_for_push(emit, REG_ARG_3, n_left + n_right); // arg3 = dest ptr
emit_call_with_imm_arg(emit, MP_F_UNPACK_EX, mp_unpack_ex, n_left + n_right, REG_ARG_2); // arg2 = n_left + n_right
}
STATIC void emit_native_make_function(emit_t *emit, scope_t *scope, uint n_pos_defaults, uint n_kw_defaults) {
// call runtime, with type info for args, or don't support dict/default params, or only support Python objects for them
assert(n_pos_defaults == 0 && n_kw_defaults == 0);
emit_native_pre(emit);
if (n_pos_defaults == 0 && n_kw_defaults == 0) {
emit_call_with_3_imm_args_and_first_aligned(emit, MP_F_MAKE_FUNCTION_FROM_RAW_CODE, mp_make_function_from_raw_code, (machine_uint_t)scope->raw_code, REG_ARG_1, (machine_uint_t)MP_OBJ_NULL, REG_ARG_2, (machine_uint_t)MP_OBJ_NULL, REG_ARG_3);
} else {
vtype_kind_t vtype_def_tuple, vtype_def_dict;
emit_pre_pop_reg_reg(emit, &vtype_def_dict, REG_ARG_3, &vtype_def_tuple, REG_ARG_2);
assert(vtype_def_tuple == VTYPE_PYOBJ);
assert(vtype_def_dict == VTYPE_PYOBJ);
emit_call_with_imm_arg_aligned(emit, MP_F_MAKE_FUNCTION_FROM_RAW_CODE, mp_make_function_from_raw_code, (machine_uint_t)scope->raw_code, REG_ARG_1);
}
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
......
......@@ -370,7 +370,7 @@ mp_obj_t mp_obj_new_bool(bool value);
mp_obj_t mp_obj_new_cell(mp_obj_t obj);
mp_obj_t mp_obj_new_int(machine_int_t value);
mp_obj_t mp_obj_new_int_from_uint(machine_uint_t value);
mp_obj_t mp_obj_new_int_from_long_str(const char *s);
mp_obj_t mp_obj_new_int_from_qstr(qstr qst);
mp_obj_t mp_obj_new_int_from_ll(long long val); // this must return a multi-precision integer object (or raise an overflow exception)
mp_obj_t mp_obj_new_str(const byte* data, uint len, bool make_qstr_if_not_already);
mp_obj_t mp_obj_new_bytes(const byte* data, uint len);
......
......@@ -228,7 +228,7 @@ mp_obj_t mp_obj_int_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
}
// This is called only with strings whose value doesn't fit in SMALL_INT
mp_obj_t mp_obj_new_int_from_long_str(const char *s) {
mp_obj_t mp_obj_new_int_from_qstr(qstr qst) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_OverflowError, "long int not supported in this build"));
return mp_const_none;
}
......
......@@ -161,7 +161,8 @@ mp_obj_t mp_obj_new_int_from_ll(long long val) {
return o;
}
mp_obj_t mp_obj_new_int_from_long_str(const char *s) {
mp_obj_t mp_obj_new_int_from_qstr(qstr qst) {
const char *s = qstr_str(qst);
long long v;
char *end;
// TODO: this doesn't handle Python hacked 0o octal syntax
......
......@@ -260,9 +260,10 @@ mp_obj_t mp_obj_new_int_from_uint(machine_uint_t value) {
return mp_obj_new_int_from_ll(value);
}
mp_obj_t mp_obj_new_int_from_long_str(const char *str) {
mp_obj_t mp_obj_new_int_from_qstr(qstr qst) {
mp_obj_int_t *o = mp_obj_int_new_mpz();
uint len = strlen(str);
uint len;
const char* str = (const char*)qstr_data(qst, &len);
int base = 0;
int skip = mp_parse_num_base(str, len, &base);
str += skip;
......
......@@ -1132,7 +1132,7 @@ void *m_malloc_fail(int num_bytes) {
// these must correspond to the respective enum
void *const mp_fun_table[MP_F_NUMBER_OF] = {
mp_load_const_dec,
mp_obj_new_int_from_long_str,
mp_obj_new_int_from_qstr,
mp_load_const_str,
mp_load_name,
mp_load_global,
......@@ -1162,6 +1162,7 @@ void *const mp_fun_table[MP_F_NUMBER_OF] = {
mp_import_all,
mp_obj_new_slice,
mp_unpack_sequence,
mp_unpack_ex,
};
/*
......
......@@ -121,6 +121,7 @@ typedef enum {
MP_F_IMPORT_ALL,
MP_F_NEW_SLICE,
MP_F_UNPACK_SEQUENCE,
MP_F_UNPACK_EX,
MP_F_NUMBER_OF,
} mp_fun_kind_t;
......
......@@ -314,7 +314,7 @@ dispatch_loop:
ENTRY(MP_BC_LOAD_CONST_INT):
DECODE_QSTR;
PUSH(mp_obj_new_int_from_long_str(qstr_str(qst)));
PUSH(mp_obj_new_int_from_qstr(qst));
DISPATCH();
ENTRY(MP_BC_LOAD_CONST_DEC):
......
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