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ir_values which are members of a vector should know that, so that liferange calc can use the vector rather than the member

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Wolfgang (Blub) Bumiller 2012-08-19 21:37:29 +02:00
parent 9420c01538
commit fe3b1b2e8d
2 changed files with 10 additions and 1 deletions
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10
ir.c
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@ -641,6 +641,7 @@ ir_value* ir_value_var(const char *name, int storetype, int vtype)
self->members[0] = NULL;
self->members[1] = NULL;
self->members[2] = NULL;
self->memberof = NULL;
MEM_VECTOR_INIT(self, life);
return self;
@ -684,6 +685,7 @@ ir_value* ir_value_vector_member(ir_value *self, unsigned int member)
return NULL;
}
m->memberof = self;
return m;
}
@ -1824,7 +1826,7 @@ bool ir_function_calculate_liferanges(ir_function *self)
ir_block *block = self->blocks[0];
for (i = 0; i < block->living_count; ++i) {
ir_value *v = block->living[i];
if (v->name[0] == '#' || v->name[0] == '%')
if (v->memberof || v->store != store_local)
continue;
if (irwarning(v->context, WARN_USED_UNINITIALIZED,
"variable `%s` may be used uninitialized in this function", v->name))
@ -2086,6 +2088,8 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
for (p = 0; p < instr->phi_count; ++p)
{
value = instr->phi[p].value;
if (value->memberof)
value = value->memberof;
if (!ir_block_living_find(self, value, NULL) &&
!ir_block_living_add(self, value))
{
@ -2097,6 +2101,8 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
for (p = 0; p < instr->params_count; ++p)
{
value = instr->params[p];
if (value->memberof)
value = value->memberof;
if (!ir_block_living_find(self, value, NULL) &&
!ir_block_living_add(self, value))
{
@ -2114,6 +2120,8 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
continue;
value = instr->_ops[o];
if (value->memberof)
value = value->memberof;
/* We only care about locals */
/* we also calculate parameter liferanges so that locals

1
ir.h
View file

@ -68,6 +68,7 @@ typedef struct ir_value_s {
/* for acessing vectors */
struct ir_value_s *members[3];
struct ir_value_s *memberof;
/* For the temp allocator */
MEM_VECTOR_MAKE(ir_life_entry_t, life);