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micropython/py/emitnative.c
Damien d99b05282d Change object representation from 1 big union to individual structs. 
A big change.  Micro Python objects are allocated as individual structs
with the first element being a pointer to the type information (which
is itself an object).  This scheme follows CPython.  Much more flexible,
not necessarily slower, uses same heap memory, and can allocate objects
statically.

Also change name prefix, from py_ to mp_ (mp for Micro Python).
2013-12-21 18:17:45 +00:00

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// Essentially normal Python has 1 type: Python objects
// Viper has more than 1 type, and is just a more complicated (a superset of) Python.
// If you declare everything in Viper as a Python object (ie omit type decls) then
// it should in principle be exactly the same as Python native.
// Having types means having more opcodes, like binary_op_nat_nat, binary_op_nat_obj etc.
// In practice we won't have a VM but rather do this in asm which is actually very minimal.
// Because it breaks strict Python equivalence it should be a completely separate
// decorator. It breaks equivalence because overflow on integers wraps around.
// It shouldn't break equivalence if you don't use the new types, but since the
// type decls might be used in normal Python for other reasons, it's probably safest,
// cleanest and clearest to make it a separate decorator.
// Actually, it does break equivalence because integers default to native integers,
// not Python objects.
// for x in l[0:8]: can be compiled into a native loop if l has pointer type
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "misc.h"
#include "mpconfig.h"
#include "lexer.h"
#include "parse.h"
#include "scope.h"
#include "runtime0.h"
#include "emit.h"
#include "obj.h"
#include "runtime.h"
// wrapper around everything in this file
#if N_X64 || N_THUMB
#if N_X64
// x64 specific stuff
#include "asmx64.h"
#define REG_LOCAL_1 (REG_RBX)
#define REG_LOCAL_NUM (1)
#define EXPORT_FUN(name) emit_native_x64_##name
#define REG_TEMP0 (REG_RAX)
#define REG_TEMP1 (REG_RDI)
#define REG_TEMP2 (REG_RSI)
#define ASM_MOV_REG_TO_LOCAL(reg, local_num) asm_x64_mov_r64_to_local(emit->as, (reg), (local_num))
#define ASM_MOV_IMM_TO_REG(imm, reg) asm_x64_mov_i64_to_r64_optimised(emit->as, (imm), (reg))
#define ASM_MOV_IMM_TO_LOCAL_USING(imm, local_num, reg_temp) do { asm_x64_mov_i64_to_r64_optimised(emit->as, (imm), (reg_temp)); asm_x64_mov_r64_to_local(emit->as, (reg_temp), (local_num)); } while (false)
#define ASM_MOV_LOCAL_TO_REG(local_num, reg) asm_x64_mov_local_to_r64(emit->as, (local_num), (reg))
#define ASM_MOV_REG_TO_REG(reg_src, reg_dest) asm_x64_mov_r64_to_r64(emit->as, (reg_src), (reg_dest))
#define ASM_MOV_LOCAL_ADDR_TO_REG(local_num, reg) asm_x64_mov_local_addr_to_r64(emit->as, (local_num), (reg))
#elif N_THUMB
// thumb specific stuff
#include "asmthumb.h"
#define REG_LOCAL_1 (REG_R4)
#define REG_LOCAL_2 (REG_R5)
#define REG_LOCAL_3 (REG_R6)
#define REG_LOCAL_NUM (3)
#define EXPORT_FUN(name) emit_native_thumb_##name
#define REG_TEMP0 (REG_R0)
#define REG_TEMP1 (REG_R1)
#define REG_TEMP2 (REG_R2)
#define ASM_MOV_REG_TO_LOCAL(reg, local_num) asm_thumb_mov_local_reg(emit->as, (local_num), (reg))
#define ASM_MOV_IMM_TO_REG(imm, reg) asm_thumb_mov_reg_i32_optimised(emit->as, (reg), (imm))
#define ASM_MOV_IMM_TO_LOCAL_USING(imm, local_num, reg_temp) do { asm_thumb_mov_reg_i32_optimised(emit->as, (reg_temp), (imm)); asm_thumb_mov_local_reg(emit->as, (local_num), (reg_temp)); } while (false)
#define ASM_MOV_LOCAL_TO_REG(local_num, reg) asm_thumb_mov_reg_local(emit->as, (reg), (local_num))
#define ASM_MOV_REG_TO_REG(reg_src, reg_dest) asm_thumb_mov_reg_reg(emit->as, (reg_dest), (reg_src))
#define ASM_MOV_LOCAL_ADDR_TO_REG(local_num, reg) asm_thumb_mov_reg_local_addr(emit->as, (reg), (local_num))
#endif
typedef enum {
STACK_VALUE,
STACK_REG,
STACK_IMM,
} stack_info_kind_t;
typedef enum {
VTYPE_UNBOUND,
VTYPE_PYOBJ,
VTYPE_BOOL,
VTYPE_INT,
VTYPE_PTR,
VTYPE_PTR_NONE,
VTYPE_BUILTIN_V_INT,
} vtype_kind_t;
typedef struct _stack_info_t {
vtype_kind_t vtype;
stack_info_kind_t kind;
union {
int u_reg;
machine_int_t u_imm;
};
} stack_info_t;
struct _emit_t {
int pass;
bool do_viper_types;
int local_vtype_alloc;
vtype_kind_t *local_vtype;
int stack_info_alloc;
stack_info_t *stack_info;
int stack_start;
int stack_size;
bool last_emit_was_return_value;
scope_t *scope;
#if N_X64
asm_x64_t *as;
#elif N_THUMB
asm_thumb_t *as;
#endif
};
emit_t *EXPORT_FUN(new)(uint max_num_labels) {
emit_t *emit = m_new(emit_t, 1);
emit->do_viper_types = false;
emit->local_vtype = NULL;
emit->stack_info = NULL;
#if N_X64
emit->as = asm_x64_new(max_num_labels);
#elif N_THUMB
emit->as = asm_thumb_new(max_num_labels);
#endif
return emit;
}
static void emit_native_set_viper_types(emit_t *emit, bool do_viper_types) {
emit->do_viper_types = do_viper_types;
}
static void emit_native_start_pass(emit_t *emit, pass_kind_t pass, scope_t *scope) {
emit->pass = pass;
emit->stack_start = 0;
emit->stack_size = 0;
emit->last_emit_was_return_value = false;
emit->scope = scope;
if (emit->local_vtype == NULL) {
emit->local_vtype_alloc = scope->num_locals + 20; // XXX should be maximum over all scopes
emit->local_vtype = m_new(vtype_kind_t, emit->local_vtype_alloc);
}
if (emit->stack_info == NULL) {
emit->stack_info_alloc = scope->stack_size + 50; // XXX don't know stack size on entry, should be maximum over all scopes
emit->stack_info = m_new(stack_info_t, emit->stack_info_alloc);
}
if (emit->do_viper_types) {
// TODO set types of arguments based on type signature
for (int i = 0; i < emit->local_vtype_alloc; i++) {
emit->local_vtype[i] = VTYPE_UNBOUND;
}
for (int i = 0; i < emit->stack_info_alloc; i++) {
emit->stack_info[i].kind = STACK_VALUE;
emit->stack_info[i].vtype = VTYPE_UNBOUND;
}
} else {
for (int i = 0; i < emit->local_vtype_alloc; i++) {
emit->local_vtype[i] = VTYPE_PYOBJ;
}
for (int i = 0; i < emit->stack_info_alloc; i++) {
emit->stack_info[i].kind = STACK_VALUE;
emit->stack_info[i].vtype = VTYPE_PYOBJ;
}
}
#if N_X64
asm_x64_start_pass(emit->as, pass);
#elif N_THUMB
asm_thumb_start_pass(emit->as, pass);
#endif
// entry to function
int num_locals = 0;
if (pass > PASS_1) {
num_locals = scope->num_locals - REG_LOCAL_NUM;
if (num_locals < 0) {
num_locals = 0;
}
emit->stack_start = num_locals;
num_locals += scope->stack_size;
}
#if N_X64
asm_x64_entry(emit->as, num_locals);
#elif N_THUMB
asm_thumb_entry(emit->as, num_locals);
#endif
// initialise locals from parameters
#if N_X64
for (int i = 0; i < scope->num_params; i++) {
if (i == 0) {
asm_x64_mov_r64_to_r64(emit->as, REG_ARG_1, REG_LOCAL_1);
} else if (i == 1) {
asm_x64_mov_r64_to_local(emit->as, REG_ARG_2, i - 1);
} else if (i == 2) {
asm_x64_mov_r64_to_local(emit->as, REG_ARG_3, i - 1);
} else {
// TODO not implemented
assert(0);
}
}
#elif N_THUMB
for (int i = 0; i < scope->num_params; i++) {
if (i == 0) {
asm_thumb_mov_reg_reg(emit->as, REG_LOCAL_1, REG_ARG_1);
} else if (i == 1) {
asm_thumb_mov_reg_reg(emit->as, REG_LOCAL_2, REG_ARG_2);
} else if (i == 2) {
asm_thumb_mov_reg_reg(emit->as, REG_LOCAL_3, REG_ARG_3);
} else if (i == 3) {
asm_thumb_mov_local_reg(emit->as, i - REG_LOCAL_NUM, REG_ARG_4);
} else {
// TODO not implemented
assert(0);
}
}
asm_thumb_mov_reg_i32(emit->as, REG_R7, (machine_uint_t)rt_fun_table);
#endif
}
static void emit_native_end_pass(emit_t *emit) {
#if N_X64
if (!emit->last_emit_was_return_value) {
asm_x64_exit(emit->as);
}
asm_x64_end_pass(emit->as);
#elif N_THUMB
if (!emit->last_emit_was_return_value) {
asm_thumb_exit(emit->as);
}
asm_thumb_end_pass(emit->as);
#endif
// check stack is back to zero size
if (emit->stack_size != 0) {
printf("ERROR: stack size not back to zero; got %d\n", emit->stack_size);
}
if (emit->pass == PASS_3) {
#if N_X64
void *f = asm_x64_get_code(emit->as);
rt_assign_native_code(emit->scope->unique_code_id, f, asm_x64_get_code_size(emit->as), emit->scope->num_params);
#elif N_THUMB
void *f = asm_thumb_get_code(emit->as);
rt_assign_native_code(emit->scope->unique_code_id, f, asm_thumb_get_code_size(emit->as), emit->scope->num_params);
#endif
}
}
static bool emit_native_last_emit_was_return_value(emit_t *emit) {
return emit->last_emit_was_return_value;
}
static int emit_native_get_stack_size(emit_t *emit) {
return emit->stack_size;
}
static void emit_native_set_stack_size(emit_t *emit, int size) {
emit->stack_size = size;
}
static void adjust_stack(emit_t *emit, int stack_size_delta) {
emit->stack_size += stack_size_delta;
assert(emit->stack_size >= 0);
if (emit->pass > PASS_1 && emit->stack_size > emit->scope->stack_size) {
emit->scope->stack_size = emit->stack_size;
}
}
/*
static void emit_pre_raw(emit_t *emit, int stack_size_delta) {
adjust_stack(emit, stack_size_delta);
emit->last_emit_was_return_value = false;
}
*/
// this must be called at start of emit functions
static void emit_pre(emit_t *emit) {
emit->last_emit_was_return_value = false;
// settle the stack
/*
if (regs_needed != 0) {
for (int i = 0; i < emit->stack_size; i++) {
switch (emit->stack_info[i].kind) {
case STACK_VALUE:
break;
case STACK_REG:
// TODO only push reg if in regs_needed
emit->stack_info[i].kind = STACK_VALUE;
ASM_MOV_REG_TO_LOCAL(emit->stack_info[i].u_reg, emit->stack_start + i);
break;
case STACK_IMM:
// don't think we ever need to push imms for settling
//ASM_MOV_IMM_TO_LOCAL(emit->last_imm, emit->stack_start + i);
break;
}
}
}
*/
}
static vtype_kind_t peek_vtype(emit_t *emit) {
return emit->stack_info[emit->stack_size - 1].vtype;
}
// pos=1 is TOS, pos=2 is next, etc
// use pos=0 for no skipping
static void need_reg_single(emit_t *emit, int reg_needed, int skip_stack_pos) {
skip_stack_pos = emit->stack_size - skip_stack_pos;
for (int i = 0; i < emit->stack_size; i++) {
if (i != skip_stack_pos) {
stack_info_t *si = &emit->stack_info[i];
if (si->kind == STACK_REG && si->u_reg == reg_needed) {
si->kind = STACK_VALUE;
ASM_MOV_REG_TO_LOCAL(si->u_reg, emit->stack_start + i);
}
}
}
}
static void need_reg_all(emit_t *emit) {
for (int i = 0; i < emit->stack_size; i++) {
stack_info_t *si = &emit->stack_info[i];
if (si->kind == STACK_REG) {
si->kind = STACK_VALUE;
ASM_MOV_REG_TO_LOCAL(si->u_reg, emit->stack_start + i);
}
}
}
static void need_stack_settled(emit_t *emit) {
for (int i = 0; i < emit->stack_size; i++) {
stack_info_t *si = &emit->stack_info[i];
if (si->kind == STACK_REG) {
si->kind = STACK_VALUE;
ASM_MOV_REG_TO_LOCAL(si->u_reg, emit->stack_start + i);
}
}
for (int i = 0; i < emit->stack_size; i++) {
stack_info_t *si = &emit->stack_info[i];
if (si->kind == STACK_IMM) {
ASM_MOV_IMM_TO_LOCAL_USING(si->u_imm, emit->stack_start + i, REG_TEMP0);
}
}
}
// pos=1 is TOS, pos=2 is next, etc
static void emit_access_stack(emit_t *emit, int pos, vtype_kind_t *vtype, int reg_dest) {
need_reg_single(emit, reg_dest, pos);
stack_info_t *si = &emit->stack_info[emit->stack_size - pos];
*vtype = si->vtype;
switch (si->kind) {
case STACK_VALUE:
ASM_MOV_LOCAL_TO_REG(emit->stack_start + emit->stack_size - pos, reg_dest);
break;
case STACK_REG:
if (si->u_reg != reg_dest) {
ASM_MOV_REG_TO_REG(si->u_reg, reg_dest);
}
break;
case STACK_IMM:
ASM_MOV_IMM_TO_REG(si->u_imm, reg_dest);
break;
}
}
static void emit_pre_pop_reg(emit_t *emit, vtype_kind_t *vtype, int reg_dest) {
emit->last_emit_was_return_value = false;
emit_access_stack(emit, 1, vtype, reg_dest);
adjust_stack(emit, -1);
}
static void emit_pre_pop_reg_reg(emit_t *emit, vtype_kind_t *vtypea, int rega, vtype_kind_t *vtypeb, int regb) {
emit_pre_pop_reg(emit, vtypea, rega);
emit_pre_pop_reg(emit, vtypeb, regb);
}
static void emit_pre_pop_reg_reg_reg(emit_t *emit, vtype_kind_t *vtypea, int rega, vtype_kind_t *vtypeb, int regb, vtype_kind_t *vtypec, int regc) {
emit_pre_pop_reg(emit, vtypea, rega);
emit_pre_pop_reg(emit, vtypeb, regb);
emit_pre_pop_reg(emit, vtypec, regc);
}
static void emit_post(emit_t *emit) {
}
static void emit_post_push_reg(emit_t *emit, vtype_kind_t vtype, int reg) {
stack_info_t *si = &emit->stack_info[emit->stack_size];
si->vtype = vtype;
si->kind = STACK_REG;
si->u_reg = reg;
adjust_stack(emit, 1);
}
static void emit_post_push_imm(emit_t *emit, vtype_kind_t vtype, machine_int_t imm) {
stack_info_t *si = &emit->stack_info[emit->stack_size];
si->vtype = vtype;
si->kind = STACK_IMM;
si->u_imm = imm;
adjust_stack(emit, 1);
}
static void emit_post_push_reg_reg(emit_t *emit, vtype_kind_t vtypea, int rega, vtype_kind_t vtypeb, int regb) {
emit_post_push_reg(emit, vtypea, rega);
emit_post_push_reg(emit, vtypeb, regb);
}
static void emit_post_push_reg_reg_reg(emit_t *emit, vtype_kind_t vtypea, int rega, vtype_kind_t vtypeb, int regb, vtype_kind_t vtypec, int regc) {
emit_post_push_reg(emit, vtypea, rega);
emit_post_push_reg(emit, vtypeb, regb);
emit_post_push_reg(emit, vtypec, regc);
}
static void emit_post_push_reg_reg_reg_reg(emit_t *emit, vtype_kind_t vtypea, int rega, vtype_kind_t vtypeb, int regb, vtype_kind_t vtypec, int regc, vtype_kind_t vtyped, int regd) {
emit_post_push_reg(emit, vtypea, rega);
emit_post_push_reg(emit, vtypeb, regb);
emit_post_push_reg(emit, vtypec, regc);
emit_post_push_reg(emit, vtyped, regd);
}
// vtype of all n_pop objects is VTYPE_PYOBJ
// does not use any temporary registers (but may use reg_dest before loading it with stack pointer)
// TODO this needs some thinking for viper code
static void emit_get_stack_pointer_to_reg_for_pop(emit_t *emit, int reg_dest, int n_pop) {
need_reg_all(emit);
for (int i = 0; i < n_pop; i++) {
stack_info_t *si = &emit->stack_info[emit->stack_size - 1 - i];
// must push any imm's to stack
// must convert them to VTYPE_PYOBJ for viper code
if (si->kind == STACK_IMM) {
si->kind = STACK_VALUE;
switch (si->vtype) {
case VTYPE_PYOBJ:
ASM_MOV_IMM_TO_LOCAL_USING(si->u_imm, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
break;
case VTYPE_BOOL:
si->vtype = VTYPE_PYOBJ;
if (si->u_imm == 0) {
ASM_MOV_IMM_TO_LOCAL_USING((machine_uint_t)mp_const_false, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
} else {
ASM_MOV_IMM_TO_LOCAL_USING((machine_uint_t)mp_const_true, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
}
break;
case VTYPE_INT:
si->vtype = VTYPE_PYOBJ;
ASM_MOV_IMM_TO_LOCAL_USING((si->u_imm << 1) | 1, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
break;
default:
// not handled
assert(0);
}
}
assert(si->kind == STACK_VALUE);
assert(si->vtype == VTYPE_PYOBJ);
}
ASM_MOV_LOCAL_ADDR_TO_REG(emit->stack_start + emit->stack_size - 1, reg_dest);
adjust_stack(emit, -n_pop);
}
// vtype of all n_push objects is VTYPE_PYOBJ
static void emit_get_stack_pointer_to_reg_for_push(emit_t *emit, int reg_dest, int n_push) {
need_reg_all(emit);
for (int i = 0; i < n_push; i++) {
emit->stack_info[emit->stack_size + i].kind = STACK_VALUE;
emit->stack_info[emit->stack_size + i].vtype = VTYPE_PYOBJ;
}
ASM_MOV_LOCAL_ADDR_TO_REG(emit->stack_start + emit->stack_size + n_push - 1, reg_dest);
adjust_stack(emit, n_push);
}
static void emit_call(emit_t *emit, rt_fun_kind_t fun_kind, void *fun) {
need_reg_all(emit);
#if N_X64
asm_x64_call_ind(emit->as, fun, REG_RAX);
#elif N_THUMB
asm_thumb_bl_ind(emit->as, rt_fun_table[fun_kind], fun_kind, REG_R3);
#endif
}
static void emit_call_with_imm_arg(emit_t *emit, rt_fun_kind_t fun_kind, void *fun, machine_int_t arg_val, int arg_reg) {
need_reg_all(emit);
ASM_MOV_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, rt_fun_table[fun_kind], fun_kind, REG_R3);
#endif
}
static void emit_native_load_id(emit_t *emit, qstr qstr) {
// check for built-ins
if (strcmp(qstr_str(qstr), "v_int") == 0) {
assert(0);
emit_pre(emit);
//emit_post_push_blank(emit, VTYPE_BUILTIN_V_INT);
// not a built-in, so do usual thing
} else {
emit_common_load_id(emit, &EXPORT_FUN(method_table), emit->scope, qstr);
}
}
static void emit_native_store_id(emit_t *emit, qstr qstr) {
// TODO check for built-ins and disallow
emit_common_store_id(emit, &EXPORT_FUN(method_table), emit->scope, qstr);
}
static void emit_native_delete_id(emit_t *emit, qstr qstr) {
// TODO check for built-ins and disallow
emit_common_delete_id(emit, &EXPORT_FUN(method_table), emit->scope, qstr);
}
static void emit_native_label_assign(emit_t *emit, int l) {
emit_pre(emit);
// need to commit stack because we can jump here from elsewhere
need_stack_settled(emit);
#if N_X64
asm_x64_label_assign(emit->as, l);
#elif N_THUMB
asm_thumb_label_assign(emit->as, l);
#endif
emit_post(emit);
}
static void emit_native_import_name(emit_t *emit, qstr qstr) {
// not implemented
assert(0);
}
static void emit_native_import_from(emit_t *emit, qstr qstr) {
// not implemented
assert(0);
}
static void emit_native_import_star(emit_t *emit) {
// not implemented
assert(0);
}
static void emit_native_load_const_tok(emit_t *emit, mp_token_kind_t tok) {
emit_pre(emit);
int vtype;
machine_uint_t val;
if (emit->do_viper_types) {
switch (tok) {
case MP_TOKEN_KW_NONE: vtype = VTYPE_PTR_NONE; val = 0; break;
case MP_TOKEN_KW_FALSE: vtype = VTYPE_BOOL; val = 0; break;
case MP_TOKEN_KW_TRUE: vtype = VTYPE_BOOL; val = 1; break;
default: assert(0); vtype = 0; val = 0; // shouldn't happen
}
} else {
vtype = VTYPE_PYOBJ;
switch (tok) {
case MP_TOKEN_KW_NONE: val = (machine_uint_t)mp_const_none; break;
case MP_TOKEN_KW_FALSE: val = (machine_uint_t)mp_const_false; break;
case MP_TOKEN_KW_TRUE: val = (machine_uint_t)mp_const_true; break;
default: assert(0); vtype = 0; val = 0; // shouldn't happen
}
}
emit_post_push_imm(emit, vtype, val);
}
static void emit_native_load_const_small_int(emit_t *emit, int arg) {
emit_pre(emit);
if (emit->do_viper_types) {
emit_post_push_imm(emit, VTYPE_INT, arg);
} else {
emit_post_push_imm(emit, VTYPE_PYOBJ, (arg << 1) | 1);
}
}
static void emit_native_load_const_int(emit_t *emit, qstr qstr) {
// not implemented
// load integer, check fits in 32 bits
assert(0);
}
static void emit_native_load_const_dec(emit_t *emit, qstr qstr) {
// for viper, a float/complex is just a Python object
emit_pre(emit);
emit_call_with_imm_arg(emit, RT_F_LOAD_CONST_DEC, rt_load_const_dec, qstr, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_load_const_id(emit_t *emit, qstr qstr) {
emit_pre(emit);
if (emit->do_viper_types) {
assert(0);
} else {
emit_call_with_imm_arg(emit, RT_F_LOAD_CONST_STR, rt_load_const_str, qstr, REG_ARG_1); // TODO
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
}
static void emit_native_load_const_str(emit_t *emit, qstr qstr, bool bytes) {
emit_pre(emit);
if (emit->do_viper_types) {
// not implemented properly
// load a pointer to the asciiz string?
assert(0);
emit_post_push_imm(emit, VTYPE_PTR, (machine_uint_t)qstr_str(qstr));
} else {
emit_call_with_imm_arg(emit, RT_F_LOAD_CONST_STR, rt_load_const_str, qstr, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
}
static void emit_native_load_const_verbatim_str(emit_t *emit, const char *str) {
// not supported/needed for viper
assert(0);
}
static void emit_native_load_fast(emit_t *emit, qstr qstr, int local_num) {
vtype_kind_t vtype = emit->local_vtype[local_num];
if (vtype == VTYPE_UNBOUND) {
printf("ViperTypeError: local %s used before type known\n", qstr_str(qstr));
}
emit_pre(emit);
#if N_X64
if (local_num == 0) {
emit_post_push_reg(emit, vtype, REG_LOCAL_1);
} else {
need_reg_single(emit, REG_RAX, 0);
asm_x64_mov_local_to_r64(emit->as, local_num - 1, REG_RAX);
emit_post_push_reg(emit, vtype, REG_RAX);
}
#elif N_THUMB
if (local_num == 0) {
emit_post_push_reg(emit, vtype, REG_LOCAL_1);
} else if (local_num == 1) {
emit_post_push_reg(emit, vtype, REG_LOCAL_2);
} else if (local_num == 2) {
emit_post_push_reg(emit, vtype, REG_LOCAL_3);
} else {
need_reg_single(emit, REG_R0, 0);
asm_thumb_mov_reg_local(emit->as, REG_R0, local_num - 1);
emit_post_push_reg(emit, vtype, REG_R0);
}
#endif
}
static void emit_native_load_deref(emit_t *emit, qstr qstr, int local_num) {
// not implemented
// in principle could support this quite easily (ldr r0, [r0, #0]) and then get closed over variables!
assert(0);
}
static void emit_native_load_closure(emit_t *emit, qstr qstr, int local_num) {
// not implemented
assert(0);
}
static void emit_native_load_name(emit_t *emit, qstr qstr) {
emit_pre(emit);
emit_call_with_imm_arg(emit, RT_F_LOAD_NAME, rt_load_name, qstr, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_load_global(emit_t *emit, qstr qstr) {
emit_pre(emit);
emit_call_with_imm_arg(emit, RT_F_LOAD_GLOBAL, rt_load_global, qstr, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_load_attr(emit_t *emit, qstr qstr) {
// depends on type of subject:
// - integer, function, pointer to integers: error
// - pointer to structure: get member, quite easy
// - Python object: call rt_load_attr, and needs to be typed to convert result
vtype_kind_t vtype_base;
emit_pre_pop_reg(emit, &vtype_base, REG_ARG_1); // arg1 = base
assert(vtype_base == VTYPE_PYOBJ);
emit_call_with_imm_arg(emit, RT_F_LOAD_ATTR, rt_load_attr, qstr, REG_ARG_2); // arg2 = attribute name
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_load_method(emit_t *emit, qstr qstr) {
vtype_kind_t vtype_base;
emit_pre_pop_reg(emit, &vtype_base, REG_ARG_1); // arg1 = base
assert(vtype_base == VTYPE_PYOBJ);
emit_get_stack_pointer_to_reg_for_push(emit, REG_ARG_3, 2); // arg3 = dest ptr
emit_call_with_imm_arg(emit, RT_F_LOAD_METHOD, rt_load_method, qstr, REG_ARG_2); // arg2 = method name
}
static void emit_native_load_build_class(emit_t *emit) {
emit_pre(emit);
emit_call(emit, RT_F_LOAD_BUILD_CLASS, rt_load_build_class);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_store_fast(emit_t *emit, qstr qstr, int local_num) {
vtype_kind_t vtype;
#if N_X64
if (local_num == 0) {
emit_pre_pop_reg(emit, &vtype, REG_LOCAL_1);
} else {
emit_pre_pop_reg(emit, &vtype, REG_RAX);
asm_x64_mov_r64_to_local(emit->as, REG_RAX, local_num - 1);
}
#elif N_THUMB
if (local_num == 0) {
emit_pre_pop_reg(emit, &vtype, REG_LOCAL_1);
} else if (local_num == 1) {
emit_pre_pop_reg(emit, &vtype, REG_LOCAL_2);
} else if (local_num == 2) {
emit_pre_pop_reg(emit, &vtype, REG_LOCAL_3);
} else {
emit_pre_pop_reg(emit, &vtype, REG_R0);
asm_thumb_mov_local_reg(emit->as, local_num - 1, REG_R0);
}
#endif
emit_post(emit);
// check types
if (emit->local_vtype[local_num] == VTYPE_UNBOUND) {
// first time this local is assigned, so give it a type of the object stored in it
emit->local_vtype[local_num] = vtype;
} else if (emit->local_vtype[local_num] != vtype) {
// type of local is not the same as object stored in it
printf("ViperTypeError: type mismatch, local %s has type %d but source object has type %d\n", qstr_str(qstr), emit->local_vtype[local_num], vtype);
}
}
static void emit_native_store_deref(emit_t *emit, qstr qstr, int local_num) {
// not implemented
assert(0);
}
static void emit_native_store_name(emit_t *emit, qstr qstr) {
// rt_store_name, but needs conversion of object (maybe have rt_viper_store_name(obj, type))
vtype_kind_t vtype;
emit_pre_pop_reg(emit, &vtype, REG_ARG_2);
assert(vtype == VTYPE_PYOBJ);
emit_call_with_imm_arg(emit, RT_F_STORE_NAME, rt_store_name, qstr, REG_ARG_1); // arg1 = name
emit_post(emit);
}
static void emit_native_store_global(emit_t *emit, qstr qstr) {
// not implemented
assert(0);
}
static void emit_native_store_attr(emit_t *emit, qstr qstr) {
vtype_kind_t vtype_base, vtype_val;
emit_pre_pop_reg_reg(emit, &vtype_base, REG_ARG_1, &vtype_val, REG_ARG_3); // arg1 = base, arg3 = value
assert(vtype_base == VTYPE_PYOBJ);
assert(vtype_val == VTYPE_PYOBJ);
emit_call_with_imm_arg(emit, RT_F_STORE_ATTR, rt_store_attr, qstr, REG_ARG_2); // arg2 = attribute name
emit_post(emit);
}
static void emit_native_store_subscr(emit_t *emit) {
// depends on type of subject:
// - integer, function, pointer to structure: error
// - pointer to integers: store as per array
// - Python object: call runtime with converted object or type info
vtype_kind_t vtype_index, vtype_base, vtype_value;
emit_pre_pop_reg_reg_reg(emit, &vtype_index, REG_ARG_2, &vtype_base, REG_ARG_1, &vtype_value, REG_ARG_3); // index, base, value to store
assert(vtype_index == VTYPE_PYOBJ);
assert(vtype_base == VTYPE_PYOBJ);
assert(vtype_value == VTYPE_PYOBJ);
emit_call(emit, RT_F_STORE_SUBSCR, rt_store_subscr);
}
static void emit_native_store_locals(emit_t *emit) {
// not needed
vtype_kind_t vtype;
emit_pre_pop_reg(emit, &vtype, REG_TEMP0);
emit_post(emit);
}
static void emit_native_delete_fast(emit_t *emit, qstr qstr, int local_num) {
// not implemented
// could support for Python types, just set to None (so GC can reclaim it)
assert(0);
}
static void emit_native_delete_deref(emit_t *emit, qstr qstr, int local_num) {
// not supported
assert(0);
}
static void emit_native_delete_name(emit_t *emit, qstr qstr) {
// not implemented
// use rt_delete_name
assert(0);
}
static void emit_native_delete_global(emit_t *emit, qstr qstr) {
// not implemented
// use rt_delete_global
assert(0);
}
static void emit_native_delete_attr(emit_t *emit, qstr qstr) {
// not supported
assert(0);
}
static void emit_native_delete_subscr(emit_t *emit) {
// not supported
assert(0);
}
static void emit_native_dup_top(emit_t *emit) {
vtype_kind_t vtype;
emit_pre_pop_reg(emit, &vtype, REG_TEMP0);
emit_post_push_reg_reg(emit, vtype, REG_TEMP0, vtype, REG_TEMP0);
}
static void emit_native_dup_top_two(emit_t *emit) {
vtype_kind_t vtype0, vtype1;
emit_pre_pop_reg_reg(emit, &vtype0, REG_TEMP0, &vtype1, REG_TEMP1);
emit_post_push_reg_reg_reg_reg(emit, vtype1, REG_TEMP1, vtype0, REG_TEMP0, vtype1, REG_TEMP1, vtype0, REG_TEMP0);
}
static void emit_native_pop_top(emit_t *emit) {
vtype_kind_t vtype;
emit_pre_pop_reg(emit, &vtype, REG_TEMP0);
emit_post(emit);
}
static void emit_native_rot_two(emit_t *emit) {
vtype_kind_t vtype0, vtype1;
emit_pre_pop_reg_reg(emit, &vtype0, REG_TEMP0, &vtype1, REG_TEMP1);
emit_post_push_reg_reg(emit, vtype0, REG_TEMP0, vtype1, REG_TEMP1);
}
static void emit_native_rot_three(emit_t *emit) {
vtype_kind_t vtype0, vtype1, vtype2;
emit_pre_pop_reg_reg_reg(emit, &vtype0, REG_TEMP0, &vtype1, REG_TEMP1, &vtype2, REG_TEMP2);
emit_post_push_reg_reg_reg(emit, vtype0, REG_TEMP0, vtype2, REG_TEMP2, vtype1, REG_TEMP1);
}
static void emit_native_jump(emit_t *emit, int label) {
emit_pre(emit);
#if N_X64
asm_x64_jmp_label(emit->as, label);
#elif N_THUMB
asm_thumb_b_label(emit->as, label);
#endif
emit_post(emit);
}
static void emit_native_pop_jump_pre_helper(emit_t *emit, int label) {
vtype_kind_t vtype = peek_vtype(emit);
if (vtype == VTYPE_BOOL) {
emit_pre_pop_reg(emit, &vtype, REG_RET);
} else if (vtype == VTYPE_PYOBJ) {
emit_pre_pop_reg(emit, &vtype, REG_ARG_1);
emit_call(emit, RT_F_IS_TRUE, rt_is_true);
} else {
printf("ViperTypeError: expecting a bool or pyobj, got %d\n", vtype);
assert(0);
}
}
static void emit_native_pop_jump_if_false(emit_t *emit, int label) {
emit_native_pop_jump_pre_helper(emit, label);
#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
emit_post(emit);
}
static void emit_native_pop_jump_if_true(emit_t *emit, int label) {
emit_native_pop_jump_pre_helper(emit, label);
#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_jump_if_true_or_pop(emit_t *emit, int label) {
assert(0);
}
static void emit_native_jump_if_false_or_pop(emit_t *emit, int label) {
assert(0);
}
static void emit_native_setup_loop(emit_t *emit, int label) {
emit_pre(emit);
emit_post(emit);
}
static void emit_native_break_loop(emit_t *emit, int label) {
emit_native_jump(emit, label); // TODO properly
}
static void emit_native_continue_loop(emit_t *emit, int label) {
assert(0);
}
static void emit_native_setup_with(emit_t *emit, int label) {
// not supported, or could be with runtime call
assert(0);
}
static void emit_native_with_cleanup(emit_t *emit) {
assert(0);
}
static void emit_native_setup_except(emit_t *emit, int label) {
assert(0);
}
static void emit_native_setup_finally(emit_t *emit, int label) {
assert(0);
}
static void emit_native_end_finally(emit_t *emit) {
assert(0);
}
static void emit_native_get_iter(emit_t *emit) {
// perhaps the difficult one, as we want to rewrite for loops using native code
// in cases where we iterate over a Python object, can we use normal runtime calls?
vtype_kind_t vtype;
emit_pre_pop_reg(emit, &vtype, REG_ARG_1);
assert(vtype == VTYPE_PYOBJ);
emit_call(emit, RT_F_GETITER, rt_getiter);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_for_iter(emit_t *emit, int label) {
emit_pre(emit);
vtype_kind_t vtype;
emit_access_stack(emit, 1, &vtype, REG_ARG_1);
assert(vtype == VTYPE_PYOBJ);
emit_call(emit, RT_F_ITERNEXT, rt_iternext);
ASM_MOV_IMM_TO_REG((machine_uint_t)mp_const_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);
#elif N_THUMB
asm_thumb_cmp_reg_reg(emit->as, REG_RET, REG_TEMP1);
asm_thumb_bcc_label(emit->as, THUMB_CC_EQ, label);
#endif
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_for_iter_end(emit_t *emit) {
// adjust stack counter (we get here from for_iter ending, which popped the value for us)
emit_pre(emit);
adjust_stack(emit, -1);
emit_post(emit);
}
static void emit_native_pop_block(emit_t *emit) {
emit_pre(emit);
emit_post(emit);
}
static void emit_native_pop_except(emit_t *emit) {
assert(0);
}
static void emit_native_unary_op(emit_t *emit, rt_unary_op_t op) {
vtype_kind_t vtype;
emit_pre_pop_reg(emit, &vtype, REG_ARG_2);
assert(vtype == VTYPE_PYOBJ);
emit_call_with_imm_arg(emit, RT_F_UNARY_OP, rt_unary_op, op, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_binary_op(emit_t *emit, rt_binary_op_t op) {
vtype_kind_t vtype_lhs, vtype_rhs;
emit_pre_pop_reg_reg(emit, &vtype_rhs, REG_ARG_3, &vtype_lhs, REG_ARG_2);
if (vtype_lhs == VTYPE_INT && vtype_rhs == VTYPE_INT) {
assert(op == RT_BINARY_OP_ADD || op == RT_BINARY_OP_INPLACE_ADD);
#if N_X64
asm_x64_add_r64_to_r64(emit->as, REG_ARG_3, REG_ARG_2);
#elif N_THUMB
asm_thumb_add_reg_reg_reg(emit->as, REG_ARG_2, REG_ARG_2, REG_ARG_3);
#endif
emit_post_push_reg(emit, VTYPE_INT, REG_ARG_2);
} else if (vtype_lhs == VTYPE_PYOBJ && vtype_rhs == VTYPE_PYOBJ) {
emit_call_with_imm_arg(emit, RT_F_BINARY_OP, rt_binary_op, op, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
} else {
printf("ViperTypeError: can't do binary op between types %d and %d\n", vtype_lhs, vtype_rhs);
assert(0);
}
}
static void emit_native_compare_op(emit_t *emit, rt_compare_op_t op) {
vtype_kind_t vtype_lhs, vtype_rhs;
emit_pre_pop_reg_reg(emit, &vtype_rhs, REG_ARG_3, &vtype_lhs, REG_ARG_2);
if (vtype_lhs == VTYPE_INT && vtype_rhs == VTYPE_INT) {
assert(op == RT_COMPARE_OP_LESS);
#if N_X64
asm_x64_xor_r64_to_r64(emit->as, REG_RET, REG_RET);
asm_x64_cmp_r64_with_r64(emit->as, REG_ARG_3, REG_ARG_2);
asm_x64_setcc_r8(emit->as, JCC_JL, REG_RET);
#elif N_THUMB
asm_thumb_cmp_reg_reg(emit->as, REG_ARG_2, REG_ARG_3);
asm_thumb_ite_ge(emit->as);
asm_thumb_movs_rlo_i8(emit->as, REG_RET, 0); // if r0 >= r1
asm_thumb_movs_rlo_i8(emit->as, REG_RET, 1); // if r0 < r1
#endif
emit_post_push_reg(emit, VTYPE_BOOL, REG_RET);
} else if (vtype_lhs == VTYPE_PYOBJ && vtype_rhs == VTYPE_PYOBJ) {
emit_call_with_imm_arg(emit, RT_F_COMPARE_OP, rt_compare_op, op, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
} else {
printf("ViperTypeError: can't do comparison between types %d and %d\n", vtype_lhs, vtype_rhs);
assert(0);
}
}
static void emit_native_build_tuple(emit_t *emit, int n_args) {
// for viper: call runtime, with types of args
// if wrapped in byte_array, or something, allocates memory and fills it
emit_pre(emit);
emit_get_stack_pointer_to_reg_for_pop(emit, REG_ARG_2, n_args); // pointer to items in reverse order
emit_call_with_imm_arg(emit, RT_F_BUILD_TUPLE, rt_build_tuple, n_args, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET); // new tuple
}
static void emit_native_build_list(emit_t *emit, int n_args) {
emit_pre(emit);
emit_get_stack_pointer_to_reg_for_pop(emit, REG_ARG_2, n_args); // pointer to items in reverse order
emit_call_with_imm_arg(emit, RT_F_BUILD_LIST, rt_build_list, n_args, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET); // new list
}
static void emit_native_list_append(emit_t *emit, int list_index) {
// only used in list comprehension
vtype_kind_t vtype_list, vtype_item;
emit_pre_pop_reg(emit, &vtype_item, REG_ARG_2);
emit_access_stack(emit, list_index, &vtype_list, REG_ARG_1);
assert(vtype_list == VTYPE_PYOBJ);
assert(vtype_item == VTYPE_PYOBJ);
emit_call(emit, RT_F_LIST_APPEND, rt_list_append);
emit_post(emit);
}
static void emit_native_build_map(emit_t *emit, int n_args) {
emit_pre(emit);
emit_call_with_imm_arg(emit, RT_F_BUILD_MAP, rt_build_map, n_args, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET); // new map
}
static void emit_native_store_map(emit_t *emit) {
vtype_kind_t vtype_key, vtype_value, vtype_map;
emit_pre_pop_reg_reg_reg(emit, &vtype_key, REG_ARG_2, &vtype_value, REG_ARG_3, &vtype_map, REG_ARG_1); // key, value, map
assert(vtype_key == VTYPE_PYOBJ);
assert(vtype_value == VTYPE_PYOBJ);
assert(vtype_map == VTYPE_PYOBJ);
emit_call(emit, RT_F_STORE_MAP, rt_store_map);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET); // map
}
static void emit_native_map_add(emit_t *emit, int map_index) {
// only used in list comprehension
vtype_kind_t vtype_map, vtype_key, vtype_value;
emit_pre_pop_reg_reg(emit, &vtype_key, REG_ARG_2, &vtype_value, REG_ARG_3);
emit_access_stack(emit, map_index, &vtype_map, REG_ARG_1);
assert(vtype_map == VTYPE_PYOBJ);
assert(vtype_key == VTYPE_PYOBJ);
assert(vtype_value == VTYPE_PYOBJ);
emit_call(emit, RT_F_STORE_MAP, rt_store_map);
emit_post(emit);
}
static void emit_native_build_set(emit_t *emit, int n_args) {
emit_pre(emit);
emit_get_stack_pointer_to_reg_for_pop(emit, REG_ARG_2, n_args); // pointer to items in reverse order
emit_call_with_imm_arg(emit, RT_F_BUILD_SET, rt_build_set, n_args, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET); // new set
}
static void emit_native_set_add(emit_t *emit, int set_index) {
// only used in set comprehension
vtype_kind_t vtype_set, vtype_item;
emit_pre_pop_reg(emit, &vtype_item, REG_ARG_2);
emit_access_stack(emit, set_index, &vtype_set, REG_ARG_1);
assert(vtype_set == VTYPE_PYOBJ);
assert(vtype_item == VTYPE_PYOBJ);
emit_call(emit, RT_F_STORE_SET, rt_store_set);
emit_post(emit);
}
static void emit_native_build_slice(emit_t *emit, int n_args) {
assert(0);
}
static void emit_native_unpack_sequence(emit_t *emit, int n_args) {
// call runtime, needs type decl
assert(0);
}
static void emit_native_unpack_ex(emit_t *emit, int n_left, int n_right) {
assert(0);
}
static void emit_native_make_function(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params) {
// call runtime, with type info for args, or don't support dict/default params, or only support Python objects for them
assert(n_default_params == 0 && n_dict_params == 0);
emit_pre(emit);
emit_call_with_imm_arg(emit, RT_F_MAKE_FUNCTION_FROM_ID, rt_make_function_from_id, scope->unique_code_id, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_make_closure(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params) {
assert(0);
}
static void emit_native_call_function(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg) {
// call special viper runtime routine with type info for args, and wanted type info for return
assert(n_keyword == 0 && !have_star_arg && !have_dbl_star_arg);
/*
if (n_positional == 0) {
vtype_kind_t vtype_fun;
emit_pre_pop_reg(emit, &vtype_fun, REG_ARG_1); // the function
assert(vtype_fun == VTYPE_PYOBJ);
emit_call(emit, RT_F_CALL_FUNCTION_0, rt_call_function_0);
} else if (n_positional == 1) {
vtype_kind_t vtype_fun, vtype_arg1;
emit_pre_pop_reg_reg(emit, &vtype_arg1, REG_ARG_2, &vtype_fun, REG_ARG_1); // the single argument, the function
assert(vtype_fun == VTYPE_PYOBJ);
assert(vtype_arg1 == VTYPE_PYOBJ);
emit_call(emit, RT_F_CALL_FUNCTION_1, rt_call_function_1);
} else if (n_positional == 2) {
vtype_kind_t vtype_fun, vtype_arg1, vtype_arg2;
emit_pre_pop_reg_reg_reg(emit, &vtype_arg2, REG_ARG_3, &vtype_arg1, REG_ARG_2, &vtype_fun, REG_ARG_1); // the second argument, the first argument, the function
assert(vtype_fun == VTYPE_PYOBJ);
assert(vtype_arg1 == VTYPE_PYOBJ);
assert(vtype_arg2 == VTYPE_PYOBJ);
emit_call(emit, RT_F_CALL_FUNCTION_2, rt_call_function_2);
} else {
*/
emit_pre(emit);
if (n_positional != 0) {
emit_get_stack_pointer_to_reg_for_pop(emit, REG_ARG_3, n_positional); // pointer to args in reverse order
}
vtype_kind_t vtype_fun;
emit_pre_pop_reg(emit, &vtype_fun, REG_ARG_1); // the function
assert(vtype_fun == VTYPE_PYOBJ);
emit_call_with_imm_arg(emit, RT_F_CALL_FUNCTION_N, rt_call_function_n, n_positional, REG_ARG_2);
//}
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_call_method(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg) {
assert(n_keyword == 0 && !have_star_arg && !have_dbl_star_arg);
/*
if (n_positional == 0) {
vtype_kind_t vtype_meth, vtype_self;
emit_pre_pop_reg_reg(emit, &vtype_self, REG_ARG_2, &vtype_meth, REG_ARG_1); // the self object (or NULL), the method
assert(vtype_meth == VTYPE_PYOBJ);
assert(vtype_self == VTYPE_PYOBJ);
emit_call(emit, RT_F_CALL_METHOD_1, rt_call_method_1);
} else if (n_positional == 1) {
vtype_kind_t vtype_meth, vtype_self, vtype_arg1;
emit_pre_pop_reg_reg_reg(emit, &vtype_arg1, REG_ARG_3, &vtype_self, REG_ARG_2, &vtype_meth, REG_ARG_1); // the first argument, the self object (or NULL), the method
assert(vtype_meth == VTYPE_PYOBJ);
assert(vtype_self == VTYPE_PYOBJ);
assert(vtype_arg1 == VTYPE_PYOBJ);
emit_call(emit, RT_F_CALL_METHOD_2, rt_call_method_2);
} else {
*/
emit_pre(emit);
emit_get_stack_pointer_to_reg_for_pop(emit, REG_ARG_2, n_positional + 2); // pointer to items in reverse order, including meth and self
emit_call_with_imm_arg(emit, RT_F_CALL_METHOD_N, rt_call_method_n, n_positional, REG_ARG_1);
//}
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_return_value(emit_t *emit) {
// easy. since we don't know who we return to, just return the raw value.
// runtime needs then to know our type signature, but I think that's possible.
vtype_kind_t vtype;
emit_pre_pop_reg(emit, &vtype, REG_RET);
if (emit->do_viper_types) {
assert(vtype == VTYPE_PTR_NONE);
} else {
assert(vtype == VTYPE_PYOBJ);
}
emit->last_emit_was_return_value = true;
#if N_X64
//asm_x64_call_ind(emit->as, 0, REG_RAX); to seg fault for debugging with gdb
asm_x64_exit(emit->as);
#elif N_THUMB
//asm_thumb_call_ind(emit->as, 0, REG_R0); to seg fault for debugging with gdb
asm_thumb_exit(emit->as);
#endif
}
static void emit_native_raise_varargs(emit_t *emit, int n_args) {
// call runtime
assert(0);
}
static void emit_native_yield_value(emit_t *emit) {
// not supported (for now)
assert(0);
}
static void emit_native_yield_from(emit_t *emit) {
// not supported (for now)
assert(0);
}
const emit_method_table_t EXPORT_FUN(method_table) = {
emit_native_set_viper_types,
emit_native_start_pass,
emit_native_end_pass,
emit_native_last_emit_was_return_value,
emit_native_get_stack_size,
emit_native_set_stack_size,
emit_native_load_id,
emit_native_store_id,
emit_native_delete_id,
emit_native_label_assign,
emit_native_import_name,
emit_native_import_from,
emit_native_import_star,
emit_native_load_const_tok,
emit_native_load_const_small_int,
emit_native_load_const_int,
emit_native_load_const_dec,
emit_native_load_const_id,
emit_native_load_const_str,
emit_native_load_const_verbatim_str,
emit_native_load_fast,
emit_native_load_deref,
emit_native_load_closure,
emit_native_load_name,
emit_native_load_global,
emit_native_load_attr,
emit_native_load_method,
emit_native_load_build_class,
emit_native_store_fast,
emit_native_store_deref,
emit_native_store_name,
emit_native_store_global,
emit_native_store_attr,
emit_native_store_subscr,
emit_native_store_locals,
emit_native_delete_fast,
emit_native_delete_deref,
emit_native_delete_name,
emit_native_delete_global,
emit_native_delete_attr,
emit_native_delete_subscr,
emit_native_dup_top,
emit_native_dup_top_two,
emit_native_pop_top,
emit_native_rot_two,
emit_native_rot_three,
emit_native_jump,
emit_native_pop_jump_if_true,
emit_native_pop_jump_if_false,
emit_native_jump_if_true_or_pop,
emit_native_jump_if_false_or_pop,
emit_native_setup_loop,
emit_native_break_loop,
emit_native_continue_loop,
emit_native_setup_with,
emit_native_with_cleanup,
emit_native_setup_except,
emit_native_setup_finally,
emit_native_end_finally,
emit_native_get_iter,
emit_native_for_iter,
emit_native_for_iter_end,
emit_native_pop_block,
emit_native_pop_except,
emit_native_unary_op,
emit_native_binary_op,
emit_native_compare_op,
emit_native_build_tuple,
emit_native_build_list,
emit_native_list_append,
emit_native_build_map,
emit_native_store_map,
emit_native_map_add,
emit_native_build_set,
emit_native_set_add,
emit_native_build_slice,
emit_native_unpack_sequence,
emit_native_unpack_ex,
emit_native_make_function,
emit_native_make_closure,
emit_native_call_function,
emit_native_call_method,
emit_native_return_value,
emit_native_raise_varargs,
emit_native_yield_value,
emit_native_yield_from,
};
#endif // N_X64 || N_THUMB
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