Make opt default to not adding a target data string and update tests that depend on target data to supply it within the test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85900 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 1950a73..12bb2ec 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -132,10 +132,6 @@
           cl::desc("data layout string to use if not specified by module"),
           cl::value_desc("layout-string"), cl::init(""));
 
-static cl::opt<bool>
-NoDefaultDataLayout("no-default-data-layout",
-  cl::desc("no data layout assumptions unless module specifies data layout"));
-
 // ---------- Define Printers for module and function passes ------------
 namespace {
 
@@ -401,7 +397,7 @@
   const std::string &ModuleDataLayout = M.get()->getDataLayout();
   if (!ModuleDataLayout.empty())
     TD = new TargetData(ModuleDataLayout);
-  else if (!NoDefaultDataLayout)
+  else if (!DefaultDataLayout.empty())
     TD = new TargetData(DefaultDataLayout);
 
   if (TD)