Re-enable loop deletion by default.

[oota-llvm.git] / tools / opt / opt.cpp

diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index ca206cf37f7fada0bdf24630d6516348e844633b..f9dd161c757539d05f05e4eeac4ceb0c5a3d081e 100644 (file)
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -262,11 +262,12 @@ void AddStandardCompilePasses(PassManager &PM) {
 
   if (!DisableInline)
     addPass(PM, createFunctionInliningPass());   // Inline small functions
-  addPass(PM, createSimplifyLibCallsPass());     // Library Call Optimizations
   addPass(PM, createArgumentPromotionPass());    // Scalarize uninlined fn args
 
   addPass(PM, createTailDuplicationPass());      // Simplify cfg by copying code
+  addPass(PM, createSimplifyLibCallsPass());     // Library Call Optimizations
   addPass(PM, createInstructionCombiningPass()); // Cleanup for scalarrepl.
+  addPass(PM, createJumpThreadingPass());        // Thread jumps.
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs
   addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
@@ -281,6 +282,7 @@ void AddStandardCompilePasses(PassManager &PM) {
   addPass(PM, createLoopIndexSplitPass());       // Index split loops.
   addPass(PM, createInstructionCombiningPass()); // Clean up after LICM/reassoc
   addPass(PM, createIndVarSimplifyPass());       // Canonicalize indvars
+  addPass(PM, createLoopDeletionPass());         // Delete dead loops
   addPass(PM, createLoopUnrollPass());           // Unroll small loops
   addPass(PM, createInstructionCombiningPass()); // Clean up after the unroller
   addPass(PM, createGVNPass());                  // Remove redundancies