Change bugpoint to use Triple to make runtime decisions.
[oota-llvm.git] / tools / bugpoint / Miscompilation.cpp
index 83054f30b0a3b054a78ad33274648762692eca1c..9c14147295694fbdea23bb0ff601234ef04c0697 100644 (file)
@@ -14,6 +14,7 @@
 
 #include "BugDriver.h"
 #include "ListReducer.h"
+#include "ToolRunner.h"
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/Instructions.h"
@@ -37,6 +38,10 @@ namespace {
     DisableLoopExtraction("disable-loop-extraction", 
         cl::desc("Don't extract loops when searching for miscompilations"),
         cl::init(false));
+  static llvm::cl::opt<bool> 
+    DisableBlockExtraction("disable-block-extraction", 
+        cl::desc("Don't extract blocks when searching for miscompilations"),
+        cl::init(false));
 
   class ReduceMiscompilingPasses : public ListReducer<const PassInfo*> {
     BugDriver &BD;
@@ -248,8 +253,9 @@ static void DisambiguateGlobalSymbols(Module *M) {
       I->setName(Mang.getMangledName(I));
   }
   for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I) {
-    // Don't mangle asm names.
-    if (!I->hasName() || I->getName()[0] != 1)
+    // Don't mangle asm names or intrinsics.
+    if ((!I->hasName() || I->getName()[0] != 1) &&
+        I->getIntrinsicID() == 0)
       I->setName(Mang.getMangledName(I));
   }
 }
@@ -555,7 +561,7 @@ DebugAMiscompilation(BugDriver &BD,
     outs() << '\n';
   }
 
-  if (!BugpointIsInterrupted &&
+  if (!BugpointIsInterrupted && !DisableBlockExtraction && 
       ExtractBlocks(BD, TestFn, MiscompiledFunctions)) {
     // Okay, we extracted some blocks and the problem still appears.  See if we
     // can eliminate some of the created functions from being candidates.
@@ -645,8 +651,6 @@ bool BugDriver::debugMiscompilation() {
 ///
 static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
                                      Module *Safe) {
-  LLVMContext &Context = BD.getContext(); 
-  
   // Clean up the modules, removing extra cruft that we don't need anymore...
   Test = BD.performFinalCleanups(Test);
 
@@ -679,12 +683,12 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
       }
 
       // Call the old main function and return its result
-      BasicBlock *BB = BasicBlock::Create("entry", newMain);
+      BasicBlock *BB = BasicBlock::Create(Safe->getContext(), "entry", newMain);
       CallInst *call = CallInst::Create(oldMainProto, args.begin(), args.end(),
                                         "", BB);
 
       // If the type of old function wasn't void, return value of call
-      ReturnInst::Create(call, BB);
+      ReturnInst::Create(Safe->getContext(), call, BB);
     }
 
   // The second nasty issue we must deal with in the JIT is that the Safe
@@ -696,8 +700,9 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
   // Prototype: void *getPointerToNamedFunction(const char* Name)
   Constant *resolverFunc =
     Safe->getOrInsertFunction("getPointerToNamedFunction",
-                        Context.getPointerTypeUnqual(Type::Int8Ty),
-                        Context.getPointerTypeUnqual(Type::Int8Ty), (Type *)0);
+                    PointerType::getUnqual(Type::getInt8Ty(Safe->getContext())),
+                    PointerType::getUnqual(Type::getInt8Ty(Safe->getContext())),
+                       (Type *)0);
 
   // Use the function we just added to get addresses of functions we need.
   for (Module::iterator F = Safe->begin(), E = Safe->end(); F != E; ++F) {
@@ -708,7 +713,7 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
       // Don't forward functions which are external in the test module too.
       if (TestFn && !TestFn->isDeclaration()) {
         // 1. Add a string constant with its name to the global file
-        Constant *InitArray = Context.getConstantArray(F->getName());
+        Constant *InitArray = ConstantArray::get(F->getContext(), F->getName());
         GlobalVariable *funcName =
           new GlobalVariable(*Safe, InitArray->getType(), true /*isConstant*/,
                              GlobalValue::InternalLinkage, InitArray,
@@ -718,9 +723,10 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
         // sbyte* so it matches the signature of the resolver function.
 
         // GetElementPtr *funcName, ulong 0, ulong 0
-        std::vector<Constant*> GEPargs(2, Context.getNullValue(Type::Int32Ty));
+        std::vector<Constant*> GEPargs(2,
+                     Constant::getNullValue(Type::getInt32Ty(F->getContext())));
         Value *GEP =
-                Context.getConstantExprGetElementPtr(funcName, &GEPargs[0], 2);
+                ConstantExpr::getGetElementPtr(funcName, &GEPargs[0], 2);
         std::vector<Value*> ResolverArgs;
         ResolverArgs.push_back(GEP);
 
@@ -728,7 +734,7 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
         // function that dynamically resolves the calls to F via our JIT API
         if (!F->use_empty()) {
           // Create a new global to hold the cached function pointer.
-          Constant *NullPtr = Context.getConstantPointerNull(F->getType());
+          Constant *NullPtr = ConstantPointerNull::get(F->getType());
           GlobalVariable *Cache =
             new GlobalVariable(*F->getParent(), F->getType(), 
                                false, GlobalValue::InternalLinkage,
@@ -740,9 +746,12 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
                                                    GlobalValue::InternalLinkage,
                                                    F->getName() + "_wrapper",
                                                    F->getParent());
-          BasicBlock *EntryBB  = BasicBlock::Create("entry", FuncWrapper);
-          BasicBlock *DoCallBB = BasicBlock::Create("usecache", FuncWrapper);
-          BasicBlock *LookupBB = BasicBlock::Create("lookupfp", FuncWrapper);
+          BasicBlock *EntryBB  = BasicBlock::Create(F->getContext(),
+                                                    "entry", FuncWrapper);
+          BasicBlock *DoCallBB = BasicBlock::Create(F->getContext(),
+                                                    "usecache", FuncWrapper);
+          BasicBlock *LookupBB = BasicBlock::Create(F->getContext(),
+                                                    "lookupfp", FuncWrapper);
 
           // Check to see if we already looked up the value.
           Value *CachedVal = new LoadInst(Cache, "fpcache", EntryBB);
@@ -760,7 +769,7 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
           // Cast the result from the resolver to correctly-typed function.
           CastInst *CastedResolver =
             new BitCastInst(Resolver,
-                            Context.getPointerTypeUnqual(F->getFunctionType()),
+                            PointerType::getUnqual(F->getFunctionType()),
                             "resolverCast", LookupBB);
 
           // Save the value in our cache.
@@ -779,13 +788,13 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
             Args.push_back(i);
 
           // Pass on the arguments to the real function, return its result
-          if (F->getReturnType() == Type::VoidTy) {
+          if (F->getReturnType() == Type::getVoidTy(F->getContext())) {
             CallInst::Create(FuncPtr, Args.begin(), Args.end(), "", DoCallBB);
-            ReturnInst::Create(DoCallBB);
+            ReturnInst::Create(F->getContext(), DoCallBB);
           } else {
             CallInst *Call = CallInst::Create(FuncPtr, Args.begin(), Args.end(),
                                               "retval", DoCallBB);
-            ReturnInst::Create(Call, DoCallBB);
+            ReturnInst::Create(F->getContext(),Call, DoCallBB);
           }
 
           // Use the wrapper function instead of the old function
@@ -929,13 +938,13 @@ bool BugDriver::debugCodeGenerator() {
   outs() << '\n';
   outs() << "The shared object was created with:\n  llc -march=c "
          << SafeModuleBC << " -o temporary.c\n"
-         << "  gcc -xc temporary.c -O2 -o " << SharedObject
-#if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
-         << " -G"            // Compile a shared library, `-G' for Sparc
-#else
-         << " -fPIC -shared"       // `-shared' for Linux/X86, maybe others
-#endif
-         << " -fno-strict-aliasing\n";
+         << "  gcc -xc temporary.c -O2 -o " << SharedObject;
+  if (TargetTriple.getArch() == Triple::sparc)
+    outs() << " -G";              // Compile a shared library, `-G' for Sparc
+  else
+    outs() << " -fPIC -shared";   // `-shared' for Linux/X86, maybe others
+
+  outs() << " -fno-strict-aliasing\n";
 
   return false;
 }