From 47478b4dce9578b52240dbf12a65a38f5ff1ebb1 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 3 Dec 2002 20:56:42 +0000
Subject: [PATCH] Checkin debug implementation of MCE

llvm-svn: 4893
---
 lib/CodeGen/MachineCodeEmitter.cpp | 41 ++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 lib/CodeGen/MachineCodeEmitter.cpp

diff --git a/lib/CodeGen/MachineCodeEmitter.cpp b/lib/CodeGen/MachineCodeEmitter.cpp
new file mode 100644
index 00000000000..e2b4908c742
--- /dev/null
+++ b/lib/CodeGen/MachineCodeEmitter.cpp
@@ -0,0 +1,41 @@
+//===-- MachineCodeEmitter.cpp - Implement the MachineCodeEmitter itf -----===//
+//
+// This file implements the MachineCodeEmitter interface.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/MachineCodeEmitter.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Function.h"
+#include <iostream>
+
+namespace {
+  struct DebugMachineCodeEmitter : public MachineCodeEmitter {
+    void startFunction(MachineFunction &F) {
+      std::cout << "\n**** Writing machine code for function: "
+                << F.getFunction()->getName() << "\n";
+    }
+    void finishFunction(MachineFunction &F) {
+      std::cout << "\n";
+    }
+    void startBasicBlock(MachineBasicBlock &BB) {
+      std::cout << "\n--- Basic Block: " << BB.getBasicBlock()->getName()<<"\n";
+    }
+    
+    void emitByte(unsigned char B) {
+      std::cout << "0x" << std::hex << (unsigned int)B << std::dec << " ";
+    }
+    void emitPCRelativeDisp(Value *V) {
+      std::cout << "<" << V->getName() << ": 0xXX 0xXX 0xXX 0xXX> ";
+    }
+  };
+}
+
+
+/// createDebugMachineCodeEmitter - Return a dynamically allocated machine
+/// code emitter, which just prints the opcodes and fields out the cout.  This
+/// can be used for debugging users of the MachineCodeEmitter interface.
+///
+MachineCodeEmitter *MachineCodeEmitter::createDebugMachineCodeEmitter() {
+  return new DebugMachineCodeEmitter();
+}