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glsl: Add wrapper function that calls ir_dereference::constant_referenced

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Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This commit is contained in:
Ian Romanick
2014-03-12 14:38:42 -07:00
parent c11c7e4f01
commit 14f0faacb6
1 changed files with 36 additions and 16 deletions
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52
src/glsl/ir_constant_expression.cpp
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@@ -395,6 +395,37 @@ unpack_half_1x16(uint16_t u)
* The offset is used when the reference is to a specific column of a matrix.
*/
/*@{*/
static bool
constant_referenced(const ir_dereference *deref,
struct hash_table *variable_context,
ir_constant *&store, int &offset)
{
switch (deref->ir_type) {
case ir_type_dereference_array:
((ir_dereference_array *) deref)->constant_referenced(variable_context,
store, offset);
break;
case ir_type_dereference_record:
((ir_dereference_record *) deref)->constant_referenced(variable_context,
store, offset);
break;
case ir_type_dereference_variable:
((ir_dereference_variable *) deref)->constant_referenced(variable_context,
store, offset);
break;
default:
assert(!"Should not get here.");
store = NULL;
offset = 0;
break;
}
return store != NULL;
}
void
ir_dereference_variable::constant_referenced(struct hash_table *variable_context,
ir_constant *&store, int &offset) const
@@ -433,13 +464,8 @@ ir_dereference_array::constant_referenced(struct hash_table *variable_context,
return;
}
deref->constant_referenced(variable_context, substore, suboffset);
if (!substore) {
store = 0;
offset = 0;
if (!::constant_referenced(deref, variable_context, substore, suboffset))
return;
}
const glsl_type *vt = array->type;
if (vt->is_array()) {
@@ -475,13 +501,8 @@ ir_dereference_record::constant_referenced(struct hash_table *variable_context,
return;
}
deref->constant_referenced(variable_context, substore, suboffset);
if (!substore) {
store = 0;
offset = 0;
if (!::constant_referenced(deref, variable_context, substore, suboffset))
return;
}
store = substore->get_record_field(field);
offset = 0;
@@ -1814,9 +1835,8 @@ bool ir_function_signature::constant_expression_evaluate_expression_list(const s
ir_constant *store = NULL;
int offset = 0;
asg->lhs->constant_referenced(variable_context, store, offset);
if (!store)
if (!constant_referenced(asg->lhs, variable_context, store, offset))
return false;
ir_constant *value = asg->rhs->constant_expression_value(variable_context);
@@ -1847,9 +1867,9 @@ bool ir_function_signature::constant_expression_evaluate_expression_list(const s
ir_constant *store = NULL;
int offset = 0;
call->return_deref->constant_referenced(variable_context, store, offset);
if (!store)
if (!constant_referenced(call->return_deref, variable_context,
store, offset))
return false;
ir_constant *value = call->constant_expression_value(variable_context);