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Add iterators and comprehension to emitnative.

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This commit is contained in:
Damien 2013-10-16 23:58:48 +01:00
parent c12aa468a1
commit d2755ec538
4 changed files with 121 additions and 27 deletions
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136
py/emitnative.c
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@ -325,12 +325,17 @@ static vtype_kind_t peek_vtype(emit_t *emit) {
return emit->stack_info[emit->stack_size - 1].vtype;
}
static void need_reg_single(emit_t *emit, int reg_needed) {
// 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++) {
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);
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);
}
}
}
}
@ -345,15 +350,30 @@ static void need_reg_all(emit_t *emit) {
}
}
static void emit_pre_pop_reg(emit_t *emit, vtype_kind_t *vtype, int reg_dest) {
emit->last_emit_was_return_value = false;
adjust_stack(emit, -1);
need_reg_single(emit, reg_dest);
stack_info_t *si = &emit->stack_info[emit->stack_size];
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, reg_dest);
ASM_MOV_LOCAL_TO_REG(emit->stack_start + emit->stack_size - pos, reg_dest);
break;
case STACK_REG:
@ -368,6 +388,12 @@ static void emit_pre_pop_reg(emit_t *emit, vtype_kind_t *vtype, int reg_dest) {
}
}
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);
@ -446,6 +472,7 @@ static void emit_get_stack_pointer_to_reg_for_push(emit_t *emit, int reg_dest, i
}
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
@ -456,7 +483,11 @@ static void emit_call(emit_t *emit, rt_fun_kind_t fun_kind, void *fun) {
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);
emit_call(emit, fun_kind, fun);
#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) {
@ -483,6 +514,8 @@ static void emit_native_delete_id(emit_t *emit, qstr qstr) {
}
static void emit_native_label_assign(emit_t *emit, int l) {
// 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
@ -611,7 +644,7 @@ static void emit_native_load_fast(emit_t *emit, qstr qstr, int local_num) {
if (local_num == 0) {
emit_post_push_reg(emit, vtype, REG_LOCAL_1);
} else {
need_reg_single(emit, REG_RAX);
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);
}
@ -623,7 +656,7 @@ static void emit_native_load_fast(emit_t *emit, qstr qstr, int local_num) {
} else if (local_num == 2) {
emit_post_push_reg(emit, vtype, REG_LOCAL_3);
} else {
need_reg_single(emit, REG_R0);
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);
}
@ -891,16 +924,42 @@ static void emit_native_setup_finally(emit_t *emit, int label) {
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?
assert(0);
} // tos = getiter(tos)
static void emit_native_for_iter(emit_t *emit, int label) {
assert(0);
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)py_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
assert(0); // XXX TODO
asm_thumb_cmp_reg_reg(emit->as, REG_RET, REG_TEMP1);
// use it, b?
asm_thumb_b_label(emit->as, label);
#endif
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
static void emit_native_for_iter_end(emit_t *emit) {
assert(0);
// 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) {
@ -966,9 +1025,12 @@ static void emit_native_compare_op(emit_t *emit, rt_compare_op_t op) {
}
static void emit_native_build_tuple(emit_t *emit, int n_args) {
// call runtime, with types of args
// if wrapped in byte_array, or something, allocates memory and fills it
assert(0);
// 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) {
@ -979,8 +1041,14 @@ static void emit_native_build_list(emit_t *emit, int n_args) {
}
static void emit_native_list_append(emit_t *emit, int list_index) {
// only used in list comprehension, so call runtime
assert(0);
// 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) {
@ -1000,7 +1068,15 @@ static void emit_native_store_map(emit_t *emit) {
}
static void emit_native_map_add(emit_t *emit, int map_index) {
assert(0);
// 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) {
@ -1011,8 +1087,16 @@ static void emit_native_build_set(emit_t *emit, int n_args) {
}
static void emit_native_set_add(emit_t *emit, int set_index) {
assert(0);
// 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);
}

5
py/runtime.c
View File

@ -1508,15 +1508,20 @@ void *rt_fun_table[RT_F_NUMBER_OF] = {
rt_store_subscr,
rt_is_true,
rt_unary_op,
rt_build_tuple,
rt_build_list,
rt_list_append,
rt_build_map,
rt_store_map,
rt_build_set,
rt_store_set,
rt_make_function_from_id,
rt_call_function_n,
rt_call_method_n,
rt_binary_op,
rt_compare_op,
rt_getiter,
rt_iternext,
};
/*

5
py/runtime.h
View File

@ -59,15 +59,20 @@ typedef enum {
RT_F_STORE_SUBSCR,
RT_F_IS_TRUE,
RT_F_UNARY_OP,
RT_F_BUILD_TUPLE,
RT_F_BUILD_LIST,
RT_F_LIST_APPEND,
RT_F_BUILD_MAP,
RT_F_STORE_MAP,
RT_F_BUILD_SET,
RT_F_STORE_SET,
RT_F_MAKE_FUNCTION_FROM_ID,
RT_F_CALL_FUNCTION_N,
RT_F_CALL_METHOD_N,
RT_F_BINARY_OP,
RT_F_COMPARE_OP,
RT_F_GETITER,
RT_F_ITERNEXT,
RT_F_NUMBER_OF,
} rt_fun_kind_t;

2
unix/mpyconfig.h
View File

@ -2,7 +2,7 @@
#define MICROPY_ENABLE_FLOAT (1)
#define MICROPY_EMIT_CPYTHON (0)
#define MICROPY_EMIT_X64 (0)
#define MICROPY_EMIT_X64 (1)
#define MICROPY_EMIT_THUMB (0)
#define MICROPY_EMIT_INLINE_THUMB (0)