Update plans

libs/ir/source/compiler.cpp

@@ -4,7 +4,6 @@
 #include <pslang/ast/expression_visitor.hpp>
 
 #include <unordered_map>
-#include <unordered_set>
 
 namespace pslang::ir
 {
@@ -268,7 +267,10 @@ namespace pslang::ir
 				return last();
 			}
 
-			// TODO: struct_definition
+			node_ref apply(ast::struct_definition const & node)
+			{
+				return last();
+			}
 
 			// Statement list
 

plans.txt

@@ -21,15 +21,8 @@ Aarch64 compiler backlog:
 * Struct function arguments & return values
 * Arrays
 
-IR outline:
-* Doubly-linked list (std::list will do) of instruction nodes
-* Nodes reference other nodes for input data or branching target
-* No temporary variables, nodes themselves represent data flow
-* Assignment expressions turn into nodes that assign to previously-defined nodes
-* Jump targets (first `while` node, node after an `if`, etc) are generated as nop nodes, to prevent them from being removed by the optimizer
-* Structs & arrays can be split into several independent nodes per-field (before pointers are introduced)
-
-IR optimizations:
+IR backlog:
+* Structs & arrays: structs indexed by field index, make sure the representation allows for SROA
 * Inlining: track function IR size (number of nodes will do), substitute its code instead of calling if it is small enough (pay attention to recursion)
 * Constant folding & propagation: if all node arguments are `const` nodes, replace the current node with the computed value
 * Arithmetic simplification: replace a+0 with a, etc