diff options
Diffstat (limited to 'tools/bugpoint/Miscompilation.cpp')
| -rw-r--r-- | tools/bugpoint/Miscompilation.cpp | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/tools/bugpoint/Miscompilation.cpp b/tools/bugpoint/Miscompilation.cpp index 9be7cd5d57..dc43126670 100644 --- a/tools/bugpoint/Miscompilation.cpp +++ b/tools/bugpoint/Miscompilation.cpp @@ -692,7 +692,7 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test, GlobalVariable *Cache = new GlobalVariable(F->getType(), false,GlobalValue::InternalLinkage, NullPtr,F->getName()+".fpcache", F->getParent()); - + // Construct a new stub function that will re-route calls to F const FunctionType *FuncTy = F->getFunctionType(); Function *FuncWrapper = new Function(FuncTy, @@ -702,13 +702,13 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test, BasicBlock *EntryBB = new BasicBlock("entry", FuncWrapper); BasicBlock *DoCallBB = new BasicBlock("usecache", FuncWrapper); BasicBlock *LookupBB = new BasicBlock("lookupfp", FuncWrapper); - + // Check to see if we already looked up the value. Value *CachedVal = new LoadInst(Cache, "fpcache", EntryBB); Value *IsNull = new SetCondInst(Instruction::SetEQ, CachedVal, NullPtr, "isNull", EntryBB); new BranchInst(LookupBB, DoCallBB, IsNull, EntryBB); - + // Resolve the call to function F via the JIT API: // // call resolver(GetElementPtr...) @@ -721,11 +721,11 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test, // Save the value in our cache. new StoreInst(CastedResolver, Cache, LookupBB); new BranchInst(DoCallBB, LookupBB); - + PHINode *FuncPtr = new PHINode(NullPtr->getType(), "fp", DoCallBB); FuncPtr->addIncoming(CastedResolver, LookupBB); FuncPtr->addIncoming(CachedVal, EntryBB); - + // Save the argument list. std::vector<Value*> Args; for (Function::arg_iterator i = FuncWrapper->arg_begin(), @@ -740,7 +740,7 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test, CallInst *Call = new CallInst(FuncPtr, Args, "retval", DoCallBB); new ReturnInst(Call, DoCallBB); } - + // Use the wrapper function instead of the old function F->replaceAllUsesWith(FuncWrapper); } |