X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=tools%2Fopt%2Fopt.cpp;h=19dcb2b782c63f81aac03678a70e2a5918180954;hb=629c1a3f78494d0dd769fe82bd2bd17df0555843;hp=fc71074fb86c5fced9ca641da7c43fe2a6b1f6cb;hpb=74b1e1424c0e4dd8f893d1cabd0854278bfcb25f;p=oota-llvm.git

diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index fc71074fb86..19dcb2b782c 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -265,9 +265,10 @@ void AddStandardCompilePasses(PassManager &PM) {
   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
-  // FIXME: Temporary!
   addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
   addPass(PM, createCondPropagationPass());      // Propagate conditionals
@@ -278,12 +279,15 @@ void AddStandardCompilePasses(PassManager &PM) {
   addPass(PM, createLoopRotatePass());
   addPass(PM, createLICMPass());                 // Hoist loop invariants
   addPass(PM, createLoopUnswitchPass());         // Unswitch loops.
-  addPass(PM, createInstructionCombiningPass()); // Clean up after LICM/reassoc
+  addPass(PM, createLoopIndexSplitPass());       // Index split loops.
+  // FIXME : Removing instcombine causes nestedloop regression.
+  addPass(PM, createInstructionCombiningPass()); 
   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, createLoadValueNumberingPass());   // GVN for load instructions
-  addPass(PM, createGCSEPass());                 // Remove common subexprs
+  addPass(PM, createGVNPass());                  // Remove redundancies
+  addPass(PM, createMemCpyOptPass());            // Remove memcpy / form memset
   addPass(PM, createSCCPPass());                 // Constant prop with SCCP
 
   // Run instcombine after redundancy elimination to exploit opportunities
@@ -292,9 +296,9 @@ void AddStandardCompilePasses(PassManager &PM) {
   addPass(PM, createCondPropagationPass());      // Propagate conditionals
 
   addPass(PM, createDeadStoreEliminationPass()); // Delete dead stores
-  addPass(PM, createAggressiveDCEPass());        // SSA based 'Aggressive DCE'
+  addPass(PM, createAggressiveDCEPass());        // Delete dead instructions
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs
-  addPass(PM, createSimplifyLibCallsPass());     // Library Call Optimizations
+  addPass(PM, createStripDeadPrototypesPass());  // Get rid of dead prototypes
   addPass(PM, createDeadTypeEliminationPass());  // Eliminate dead types
   addPass(PM, createConstantMergePass());        // Merge dup global constants
 }
@@ -309,7 +313,7 @@ int main(int argc, char **argv) {
   llvm_shutdown_obj X;  // Call llvm_shutdown() on exit.
   try {
     cl::ParseCommandLineOptions(argc, argv,
-      " llvm .bc -> .bc modular optimizer and analysis printer \n");
+      "llvm .bc -> .bc modular optimizer and analysis printer\n");
     sys::PrintStackTraceOnErrorSignal();
 
     // Allocate a full target machine description only if necessary.