diff options
| -rw-r--r-- | py/asmxtensa.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/py/asmxtensa.c b/py/asmxtensa.c index 0e612bfa7e..ab2e7aeaeb 100644 --- a/py/asmxtensa.c +++ b/py/asmxtensa.c @@ -66,10 +66,12 @@ void asm_xtensa_end_pass(asm_xtensa_t *as) { } void asm_xtensa_entry(asm_xtensa_t *as, int num_locals) { - // jump over the constants - asm_xtensa_op_j(as, as->num_const * WORD_SIZE + 4 - 4); - mp_asm_base_get_cur_to_write_bytes(&as->base, 1); // padding/alignment byte - as->const_table = (uint32_t *)mp_asm_base_get_cur_to_write_bytes(&as->base, as->num_const * 4); + if (as->num_const > 0) { + // jump over the constants + asm_xtensa_op_j(as, as->num_const * WORD_SIZE + 4 - 4); + mp_asm_base_get_cur_to_write_bytes(&as->base, 1); // padding/alignment byte + as->const_table = (uint32_t *)mp_asm_base_get_cur_to_write_bytes(&as->base, as->num_const * 4); + } // adjust the stack-pointer to store a0, a12, a13, a14, a15 and locals, 16-byte aligned as->stack_adjust = (((ASM_XTENSA_NUM_REGS_SAVED + num_locals) * WORD_SIZE) + 15) & ~15; @@ -183,6 +185,8 @@ size_t asm_xtensa_mov_reg_i32(asm_xtensa_t *as, uint reg_dest, uint32_t i32) { // store the constant in the table if (as->const_table != NULL) { as->const_table[as->cur_const] = i32; + } else { + assert((as->base.pass != MP_ASM_PASS_EMIT) && "Constants table was not built."); } ++as->cur_const; return loc; |