For PR761:

Implement reading and writing of the Module's data layout string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33346 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Bytecode/Reader/Reader.cpp

@@ -2014,6 +2014,13 @@ void BytecodeReader::ParseModuleGlobalInfo() {
   if (Handler)
     Handler->handleTargetTriple(triple);
 
+  // Read the data layout string and place into the module.
+  std::string datalayout = read_str();
+  TheModule->setDataLayout(datalayout);
+  // FIXME: Implement
+  // if (Handler)
+    // Handler->handleDataLayout(datalayout);
+  
   if (At != BlockEnd) {
     // If the file has section info in it, read the section names now.
     unsigned NumSections = read_vbr_uint();

lib/Bytecode/Writer/Writer.cpp

@@ -1091,6 +1091,9 @@ void BytecodeWriter::outputModuleInfoBlock(const Module *M) {
   // Output the target triple from the module
   output(M->getTargetTriple());
 
+  // Output the data layout from the module
+  output(M->getDataLayout());
+  
   // Emit the table of section names.
   output_vbr((unsigned)SectionNames.size());
   for (unsigned i = 0, e = SectionNames.size(); i != e; ++i)