py: Add MICROPY_DYNAMIC_COMPILER option to config compiler at runtime.

This new compile-time option allows to make the bytecode compiler
configurable at runtime by setting the fields in the mp_dynamic_compiler
structure.  By using this feature, the compiler can generate bytecode
that targets any MicroPython runtime/VM, regardless of the host and
target compile-time settings.

Options so far that fall under this dynamic setting are:
- maximum number of bits that a small int can hold;
- whether caching of lookups is used in the bytecode;
- whether to use unicode strings or not (lexer behaviour differs, and
  therefore generated string constants differ).

1 files changed, 4 insertions, 4 deletions

diff --git a/py/emitbc.c b/py/emitbc.c
index 2f5304deb..14298bad4 100644
--- a/py/emitbc.c
+++ b/py/emitbc.c
@@ -579,7 +579,7 @@ void mp_emit_bc_load_name(emit_t *emit, qstr qst) {
     (void)qst;
     emit_bc_pre(emit, 1);
     emit_write_bytecode_byte_qstr(emit, MP_BC_LOAD_NAME, qst);
-    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE) {
+    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE_DYNAMIC) {
         emit_write_bytecode_byte(emit, 0);
     }
 }
@@ -588,7 +588,7 @@ void mp_emit_bc_load_global(emit_t *emit, qstr qst) {
     (void)qst;
     emit_bc_pre(emit, 1);
     emit_write_bytecode_byte_qstr(emit, MP_BC_LOAD_GLOBAL, qst);
-    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE) {
+    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE_DYNAMIC) {
         emit_write_bytecode_byte(emit, 0);
     }
 }
@@ -596,7 +596,7 @@ void mp_emit_bc_load_global(emit_t *emit, qstr qst) {
 void mp_emit_bc_load_attr(emit_t *emit, qstr qst) {
     emit_bc_pre(emit, 0);
     emit_write_bytecode_byte_qstr(emit, MP_BC_LOAD_ATTR, qst);
-    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE) {
+    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE_DYNAMIC) {
         emit_write_bytecode_byte(emit, 0);
     }
 }
@@ -646,7 +646,7 @@ void mp_emit_bc_store_global(emit_t *emit, qstr qst) {
 void mp_emit_bc_store_attr(emit_t *emit, qstr qst) {
     emit_bc_pre(emit, -2);
     emit_write_bytecode_byte_qstr(emit, MP_BC_STORE_ATTR, qst);
-    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE) {
+    if (MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE_DYNAMIC) {
         emit_write_bytecode_byte(emit, 0);
     }
 }