From 061269be9723f842931f18ad207acf9a66e0cf76 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 2 Oct 2002 19:38:55 +0000
Subject: [PATCH]   - Print the predecessors of a basic block instead of the
 number of uses of     the block in the AsmWriter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4019 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/AsmWriter.cpp | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 4ba16621430..8c7b06ba0f1 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -21,6 +21,7 @@
 #include "llvm/iPHINode.h"
 #include "llvm/iOther.h"
 #include "llvm/SymbolTable.h"
+#include "llvm/Support/CFG.h"
 #include "Support/StringExtras.h"
 #include "Support/STLExtras.h"
 #include <algorithm>
@@ -661,8 +662,7 @@ void AssemblyWriter::printArgument(const Argument *Arg) {
 //
 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
   if (BB->hasName()) {              // Print out the label if it exists...
-    Out << "\n" << BB->getName() << ":\t\t\t\t\t;[#uses="
-        << BB->use_size() << "]";  // Output # uses
+    Out << "\n" << BB->getName() << ":";
   } else if (!BB->use_empty()) {      // Don't print block # of no uses...
     int Slot = Table.getValSlot(BB);
     Out << "\n; <label>:";
@@ -670,7 +670,21 @@ void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
       Out << Slot;         // Extra newline seperates out label's
     else 
       Out << "<badref>"; 
-    Out << "\t\t\t\t\t;[#uses=" << BB->use_size() << "]";  // Output # uses
+  }
+  
+  // Output predecessors for the block...
+  Out << "\t\t;";
+  pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
+
+  if (PI == PE) {
+    Out << " No predecessors!";
+  } else {
+    Out << " preds =";
+    writeOperand(*PI, false, true);
+    for (++PI; PI != PE; ++PI) {
+      Out << ",";
+      writeOperand(*PI, false, true);
+    }
   }
   
   Out << "\n";