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py/emitnative: Implement floor-division and modulo for viper emitter.

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This commit is contained in:
Damien George
2017-10-11 18:54:34 +11:00
parent 1b7d6a7951
commit a3afa8cfc4
5 changed files with 67 additions and 0 deletions
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16
py/emitnative.c
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@@ -123,6 +123,8 @@ STATIC byte mp_f_n_args[MP_F_NUMBER_OF] = {
[MP_F_NEW_CELL] = 1,
[MP_F_MAKE_CLOSURE_FROM_RAW_CODE] = 3,
[MP_F_SETUP_CODE_STATE] = 5,
[MP_F_SMALL_INT_FLOOR_DIVIDE] = 2,
[MP_F_SMALL_INT_MODULO] = 2,
};
#include "py/asmx86.h"
@@ -1843,6 +1845,20 @@ STATIC void emit_native_binary_op(emit_t *emit, mp_binary_op_t op) {
return;
}
#endif
// special cases for floor-divide and module because we dispatch to helper functions
if (op == MP_BINARY_OP_FLOOR_DIVIDE || op == MP_BINARY_OP_INPLACE_FLOOR_DIVIDE
|| op == MP_BINARY_OP_MODULO || op == MP_BINARY_OP_INPLACE_MODULO) {
emit_pre_pop_reg_reg(emit, &vtype_rhs, REG_ARG_2, &vtype_lhs, REG_ARG_1);
if (op == MP_BINARY_OP_FLOOR_DIVIDE || op == MP_BINARY_OP_INPLACE_FLOOR_DIVIDE) {
emit_call(emit, MP_F_SMALL_INT_FLOOR_DIVIDE);
} else {
emit_call(emit, MP_F_SMALL_INT_MODULO);
}
emit_post_push_reg(emit, VTYPE_INT, REG_RET);
return;
}
int reg_rhs = REG_ARG_3;
emit_pre_pop_reg_flexible(emit, &vtype_rhs, &reg_rhs, REG_RET, REG_ARG_2);
emit_pre_pop_reg(emit, &vtype_lhs, REG_ARG_2);