Reduced memory usage

src/build/Result.go

@@ -10,7 +10,7 @@ import (
 type Result struct {
 	Used             []*Function
 	Unused           map[string]*Function
-	instructionCount int
+	InstructionCount int
 }
 
 // Finalize generates the final machine code.
@@ -20,7 +20,7 @@ func (r Result) Finalize() ([]byte, []byte) {
 	// The reason we call `main` instead of using `main` itself is to place
 	// a return address on the stack, which allows return statements in `main`.
 	final := asm.Assembler{
-		Instructions: make([]asm.Instruction, 0, r.instructionCount+4),
+		Instructions: make([]asm.Instruction, 0, r.InstructionCount+4),
 	}
 
 	final.Call("main")