From 3ee2ea86258923be31cd7d4d344d2e124f4dbb0f Mon Sep 17 00:00:00 2001
From: Anand Shukla <ashukla@cs.uiuc.edu>
Date: Sun, 21 Jul 2002 09:35:01 +0000
Subject: [PATCH] Adding code for outputing length in .s

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2979 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/SparcV9/EmitBytecodeToAssembly.cpp | 22 +++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/lib/Target/SparcV9/EmitBytecodeToAssembly.cpp b/lib/Target/SparcV9/EmitBytecodeToAssembly.cpp
index 141361d1e3c..3ca8b165823 100644
--- a/lib/Target/SparcV9/EmitBytecodeToAssembly.cpp
+++ b/lib/Target/SparcV9/EmitBytecodeToAssembly.cpp
@@ -10,13 +10,16 @@
 #include "llvm/Pass.h"
 #include "llvm/Bytecode/Writer.h"
 #include <iostream>
+#include <sstream>
+#include <string>
+using std::ostream;
 
 namespace {
 
   // sparcasmbuf - stream buf for encoding output bytes as .byte directives for
   // the sparc assembler.
   //
-  class sparcasmbuf : public streambuf {
+  class sparcasmbuf : public std::streambuf {
     std::ostream &BaseStr;
   public:
     typedef char           char_type;
@@ -63,14 +66,29 @@ namespace {
 
     virtual bool run(Module &M) {
       // Write bytecode out to the sparc assembly stream
+
       Out << "\n\n!LLVM BYTECODE OUTPUT\n\t.section \".rodata\"\n\t.align 8\n";
       Out << "\t.global LLVMBytecode\n\t.type LLVMBytecode,#object\n";
       Out << "LLVMBytecode:\n";
-      osparcasmstream OS(Out);
+      //changed --anand, to get the size of bytecode
+      std::ostringstream Ostr;
+      osparcasmstream OS(Ostr);
       WriteBytecodeToFile(&M, OS);
 
+      //compute length: count number of "."
+      std::string myString=Ostr.str();
+      int llvm_len=0;
+      for(std::string::iterator si=myString.begin(), se=myString.end(); si!=se; si++)
+	if(*si == '.')
+	  llvm_len++;
+      
+      //now put Ostr into Out
+      //count no of 
+      Out<<Ostr.str();
       Out << ".end_LLVMBytecode:\n";
       Out << "\t.size LLVMBytecode, .end_LLVMBytecode-LLVMBytecode\n\n";
+
+      Out <<"\n\n!LLVM BYTECODE Length\n\t.section \".data\",#alloc,#write\n\t.global llvm_length\n\t.align 4\n\t.type llvm_length,#object\n\t.size llvm_length,4\nllvm_length:\n\t.word "<<llvm_len<<"\n"; 
       return false;
     }
   };