X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=tools%2Fbugpoint%2Fbugpoint.cpp;h=8f15b026a5113d9a1f34f41d7c7f25f0696c4e1a;hb=b21d9aebba7e45ddcbce61dd501000049cefb335;hp=79cf563ec6fd6d5c7142fedbaee29147ff189744;hpb=75ebbceeeda1e7a78efe1848bb90e034f0c6ba61;p=oota-llvm.git

diff --git a/tools/bugpoint/bugpoint.cpp b/tools/bugpoint/bugpoint.cpp
index 79cf563ec6f..8f15b026a51 100644
--- a/tools/bugpoint/bugpoint.cpp
+++ b/tools/bugpoint/bugpoint.cpp
@@ -17,16 +17,21 @@
 #include "ToolRunner.h"
 #include "llvm/LinkAllPasses.h"
 #include "llvm/LLVMContext.h"
+#include "llvm/PassManager.h"
 #include "llvm/Support/PassNameParser.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/PluginLoader.h"
 #include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/StandardPasses.h"
-#include "llvm/System/Process.h"
-#include "llvm/System/Signals.h"
-#include "llvm/System/Valgrind.h"
+#include "llvm/Support/Process.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/Valgrind.h"
 #include "llvm/LinkAllVMCore.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
+
+//Enable this macro to debug bugpoint itself.
+//#define DEBUG_BUGPOINT 1
+
 using namespace llvm;
 
 static cl::opt<bool> 
@@ -65,22 +70,36 @@ static cl::opt<bool>
 StandardLinkOpts("std-link-opts", 
                  cl::desc("Include the standard link time optimizations"));
 
+static cl::opt<bool>
+OptLevelO1("O1",
+           cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
+
+static cl::opt<bool>
+OptLevelO2("O2",
+           cl::desc("Optimization level 2. Similar to llvm-gcc -O2"));
+
+static cl::opt<bool>
+OptLevelO3("O3",
+           cl::desc("Optimization level 3. Similar to llvm-gcc -O3"));
+
 static cl::opt<std::string>
 OverrideTriple("mtriple", cl::desc("Override target triple for module"));
 
 /// BugpointIsInterrupted - Set to true when the user presses ctrl-c.
 bool llvm::BugpointIsInterrupted = false;
 
+#ifndef DEBUG_BUGPOINT
 static void BugpointInterruptFunction() {
   BugpointIsInterrupted = true;
 }
+#endif
 
 // Hack to capture a pass list.
 namespace {
-  class AddToDriver : public PassManager {
+  class AddToDriver : public FunctionPassManager {
     BugDriver &D;
   public:
-    AddToDriver(BugDriver &_D) : D(_D) {}
+    AddToDriver(BugDriver &_D) : FunctionPassManager(0), D(_D) {}
     
     virtual void add(Pass *P) {
       const void *ID = P->getPassID();
@@ -91,14 +110,32 @@ namespace {
 }
 
 int main(int argc, char **argv) {
+#ifndef DEBUG_BUGPOINT
   llvm::sys::PrintStackTraceOnErrorSignal();
   llvm::PrettyStackTraceProgram X(argc, argv);
   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
+#endif
+  
+  // Initialize passes
+  PassRegistry &Registry = *PassRegistry::getPassRegistry();
+  initializeCore(Registry);
+  initializeScalarOpts(Registry);
+  initializeVectorization(Registry);
+  initializeIPO(Registry);
+  initializeAnalysis(Registry);
+  initializeIPA(Registry);
+  initializeTransformUtils(Registry);
+  initializeInstCombine(Registry);
+  initializeInstrumentation(Registry);
+  initializeTarget(Registry);
+  
   cl::ParseCommandLineOptions(argc, argv,
                               "LLVM automatic testcase reducer. See\nhttp://"
                               "llvm.org/cmds/bugpoint.html"
                               " for more information.\n");
+#ifndef DEBUG_BUGPOINT
   sys::SetInterruptFunction(BugpointInterruptFunction);
+#endif
 
   LLVMContext& Context = getGlobalContext();
   // If we have an override, set it and then track the triple we want Modules
@@ -123,20 +160,32 @@ int main(int argc, char **argv) {
   
   AddToDriver PM(D);
   if (StandardCompileOpts) {
-    createStandardModulePasses(&PM, 3,
-                               /*OptimizeSize=*/ false,
-                               /*UnitAtATime=*/ true,
-                               /*UnrollLoops=*/ true,
-                               /*SimplifyLibCalls=*/ true,
-                               /*HaveExceptions=*/ true,
-                               createFunctionInliningPass());
+    PassManagerBuilder Builder;
+    Builder.OptLevel = 3;
+    Builder.Inliner = createFunctionInliningPass();
+    Builder.populateModulePassManager(PM);
   }
       
-  if (StandardLinkOpts)
-    createStandardLTOPasses(&PM, /*Internalize=*/true,
-                            /*RunInliner=*/true,
-                            /*VerifyEach=*/false);
+  if (StandardLinkOpts) {
+    PassManagerBuilder Builder;
+    Builder.populateLTOPassManager(PM, /*Internalize=*/true,
+                                   /*RunInliner=*/true);
+  }
 
+  if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
+    PassManagerBuilder Builder;
+    if (OptLevelO1)
+      Builder.Inliner = createAlwaysInlinerPass();
+    else if (OptLevelO2)
+      Builder.Inliner = createFunctionInliningPass(225);
+    else
+      Builder.Inliner = createFunctionInliningPass(275);
+
+    // Note that although clang/llvm-gcc use two separate passmanagers
+    // here, it shouldn't normally make a difference.
+    Builder.populateFunctionPassManager(PM);
+    Builder.populateModulePassManager(PM);
+  }
 
   for (std::vector<const PassInfo*>::iterator I = PassList.begin(),
          E = PassList.end();
@@ -147,7 +196,9 @@ int main(int argc, char **argv) {
 
   // Bugpoint has the ability of generating a plethora of core files, so to
   // avoid filling up the disk, we prevent it
+#ifndef DEBUG_BUGPOINT
   sys::Process::PreventCoreFiles();
+#endif
 
   std::string Error;
   bool Failure = D.run(Error);