Add ir_dereference constructor for structure field dereferences

diff --git a/ir.cpp b/ir.cpp
index 63135e3..7ada145 100644 (file)
--- a/ir.cpp
+++ b/ir.cpp
@@ -246,6 +246,14 @@ ir_dereference::ir_dereference(ir_instruction *var,
    this->selector.array_index = array_index;
 }
 
+ir_dereference::ir_dereference(ir_instruction *variable, const char *field)
+   : mode(ir_reference_record), var(variable)
+{
+   this->selector.field = field;
+   this->type = (var != NULL)
+      ? var->type->field_type(field) : glsl_type::error_type;
+}
+
 bool
 ir_dereference::is_lvalue()
 {

diff --git a/ir.h b/ir.h
index 42e8264..b3fb06d 100644 (file)
--- a/ir.h
+++ b/ir.h
@@ -749,6 +749,8 @@ public:
 
    ir_dereference(ir_instruction *variable, ir_rvalue *array_index);
 
+   ir_dereference(ir_instruction *variable, const char *field);
+
    virtual ir_dereference *as_dereference()
    {
       return this;