From b921e6377b86e3445975073bbb8154ec0dd6818d Mon Sep 17 00:00:00 2001
From: Tobias Grosser <grosser@fim.uni-passau.de>
Date: Wed, 20 Mar 2013 13:03:26 +0000
Subject: [PATCH] Add option -polly-code-generator=none

This allows us to test Polly and the Polly optimizer without actually doing
code generation at the end. By enabling this option, we can also measure the
compile time overhead due to code generation and the cost of LLVM optimizing the
newly generated code.t

llvm-svn: 177516
---
 polly/lib/RegisterPasses.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/polly/lib/RegisterPasses.cpp b/polly/lib/RegisterPasses.cpp
index c0ce8577c583..a4e49dd95471 100644
--- a/polly/lib/RegisterPasses.cpp
+++ b/polly/lib/RegisterPasses.cpp
@@ -68,7 +68,8 @@ enum CodeGenChoice {
 #ifdef CLOOG_FOUND
   CODEGEN_CLOOG,
 #endif
-  CODEGEN_ISL
+  CODEGEN_ISL,
+  CODEGEN_NONE
 };
 
 #ifdef CLOOG_FOUND
@@ -86,6 +87,7 @@ CodeGenerator("polly-code-generator",
                          clEnumValN(CODEGEN_CLOOG, "cloog", "CLooG"),
 #endif
                          clEnumValN(CODEGEN_ISL, "isl", "isl code generator"),
+                         clEnumValN(CODEGEN_NONE, "none", "no code generation"),
                          clEnumValEnd),
           cl::Hidden, cl::init(DefaultCodeGen), cl::ZeroOrMore);
 
@@ -279,6 +281,8 @@ static void registerPollyPasses(llvm::PassManagerBase &PM) {
   case CODEGEN_ISL:
     PM.add(polly::createIslCodeGenerationPass());
     break;
+  case CODEGEN_NONE:
+    break;
   }
 
   if (CFGPrinter)