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py: Add independent config for debugging sentinel object values.

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The new compile-time option is MICROPY_DEBUG_MP_OBJ_SENTINELS, disabled by
default.  This is to allow finer control of whether this debugging feature
is enabled or not (because, for example, this setting must be the same for
mpy-cross and the MicroPython main code when using native code generation).
This commit is contained in:
Damien George
2019-03-08 15:48:20 +11:00
parent f2ebee9cf1
commit 02cc288edb
3 changed files with 14 additions and 9 deletions
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8
py/emitnative.c
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@@ -2094,12 +2094,12 @@ STATIC void emit_native_for_iter(emit_t *emit, mp_uint_t label) {
emit_get_stack_pointer_to_reg_for_pop(emit, REG_ARG_1, MP_OBJ_ITER_BUF_NSLOTS);
adjust_stack(emit, MP_OBJ_ITER_BUF_NSLOTS);
emit_call(emit, MP_F_NATIVE_ITERNEXT);
#ifdef NDEBUG
MP_STATIC_ASSERT(MP_OBJ_STOP_ITERATION == 0);
ASM_JUMP_IF_REG_ZERO(emit->as, REG_RET, label, false);
#else
#if MICROPY_DEBUG_MP_OBJ_SENTINELS
ASM_MOV_REG_IMM(emit->as, REG_TEMP1, (mp_uint_t)MP_OBJ_STOP_ITERATION);
ASM_JUMP_IF_REG_EQ(emit->as, REG_RET, REG_TEMP1, label);
#else
MP_STATIC_ASSERT(MP_OBJ_STOP_ITERATION == 0);
ASM_JUMP_IF_REG_ZERO(emit->as, REG_RET, label, false);
#endif
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}