ID0000771: **This issue was created automatically from Mantis Issue 771. Further discussion may take place here.** --- | **Id** | **Project** | **Category** | **View** | **Due Date** | **Updated** | | --- | --- | --- | --- | --- | --- | | ID0000771 | Frama-C | Kernel | public | 2011-03-30 | 2014-02-12 | | | | | | | | | --- | --- | --- | --- | --- | --- | | **Reporter** | pascal | **Assigned To** | virgile | **Resolution** | fixed | | **Priority** | normal | **Severity** | minor | **Reproducibility** | always | | **Platform** | - | **OS** | - | **OS Version** | - | | **Product Version** | Frama-C GIT, precise the release id | **Target Version** | - | **Fixed in Version** | Frama-C Nitrogen-20111001 | ### Description : The command below leads the value analysis to check whether *g_19 can be in alias with g_20. They can be, so the value analysis emits an alarm, but I fail to see why this should be checked. The functions called have no side-effects. In fact, there are no side-effects in the whole assignment, except the side-effect of the assignment. This is likely to be related to 676: the display below is very strange, with some statements displayed as empty lines (and still having inputs !!). __ bin/toplevel.opt -unspecified-access se.i ____ assert.30103607.7.c:632:[kernel] warning: Unspecified sequence with side effect: /* <- */ tmp = safe_add_func_uint16_t_u_u(p_69.f2,(unsigned short )l_80); /* <- */ tmp_0 = safe_lshift_func_uint8_t_u_u((unsigned char )p_70.f0, (unsigned int )l_85); /* <- p_70.f3 */ /* <- */ tmp_1 = safe_sub_func_uint32_t_u_u((unsigned int )l_90[0][0][1], (unsigned int )*g_19); /* <- */ tmp_2 = safe_sub_func_uint32_t_u_u(tmp_1,(unsigned int )p_70.f3); /* <- l_80 g_14 */ /* <- */ tmp_3 = safe_rshift_func_int8_t_s_s((signed char )p_70.f3,g_20); /* <- g_20 */ /* <- */ tmp_4 = safe_add_func_int8_t_s_s((signed char )((int )tmp_3 >= g_20), (signed char )((long )(l_80 < (int32_t )g_14) <= 0xC7L)); /* <- */ tmp_5 = safe_add_func_int8_t_s_s(tmp_4, (signed char )((uint32_t )((int )tmp != (int )tmp_0) <= tmp_2)); /* <- g_14 */ /* *g_19 <- */ *g_19 = (int32_t )safe_mul_func_int8_t_s_s((signed char )g_14, (signed char )(1U != (unsigned int )tmp_5)); ______ ## Attachments - [se.i](/uploads/7b3e9708421a0440524a591ed89764fd/se.i)