Enable modeling of scalar read-only dependences

Even though these are not strictly necessary for sequential code generation,
we still model both for sequential and parallel code generation to reduce
the set of configurations that needs to be tested. If this turns out, against
what we currently see, to be significant overhead, we can decide to limit this
feature again to parallel code-generation use cases only.

llvm-svn: 246420

polly/lib/Analysis/TempScopInfo.cpp

@@ -38,7 +38,7 @@ using namespace polly;
 static cl::opt<bool> ModelReadOnlyScalars(
     "polly-analyze-read-only-scalars",
     cl::desc("Model read-only scalar values in the scop description"),
-    cl::Hidden, cl::ZeroOrMore, cl::init(false), cl::cat(PollyCategory));
+    cl::Hidden, cl::ZeroOrMore, cl::init(true), cl::cat(PollyCategory));
 
 #define DEBUG_TYPE "polly-analyze-ir"