From d96b083c414b236d922366a80df9389291a59feb Mon Sep 17 00:00:00 2001
From: nitrix <me@nitrix.one>
Date: Mon, 9 Mar 2020 15:57:37 +0100
Subject: [PATCH] add metadata to class fields during visit of function
 definition nodes

---
 src/main/java/de/hsrm/compiler/Klang/visitors/GenASM.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main/java/de/hsrm/compiler/Klang/visitors/GenASM.java b/src/main/java/de/hsrm/compiler/Klang/visitors/GenASM.java
index 1bc49dc..32b25c5 100644
--- a/src/main/java/de/hsrm/compiler/Klang/visitors/GenASM.java
+++ b/src/main/java/de/hsrm/compiler/Klang/visitors/GenASM.java
@@ -113,6 +113,8 @@ public class GenASM implements Visitor<Void> {
   String[] registers = { "%rdi", "%rsi", "%rdx", "%rcx", "%r8", "%r9" };
   String[] floatRegisters = { "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7" };
   private int lCount = 0; // Invariante: lCount ist benutzt
+  private int currentFunctionStartLabel = 0;
+  private Parameter[] currentFunctionParams;
 
   private void intToFloat(String src, String dst) {
     this.ex.write("    cvtsi2sd " + src + ", " + dst + "\n");
@@ -606,11 +608,15 @@ public class GenASM implements Visitor<Void> {
 
   @Override
   public Void visit(FunctionDefinition e) {
+    int lblStart = ++lCount;
+    this.currentFunctionStartLabel = lblStart;
+    this.currentFunctionParams = e.parameters;
     this.ex.write(".globl " + e.name + "\n");
     this.ex.write(".type " + e.name + ", @function\n");
     this.ex.write(e.name + ":\n");
     this.ex.write("    pushq %rbp\n");
     this.ex.write("    movq %rsp, %rbp\n");
+    this.ex.write(".L" + lblStart + ":\n");
 
     // hole die anzahl der lokalen variablen
     this.vars = new TreeSet<String>();