[LLVMbugs] [Bug 1516] NEW: llvm2cpp generates incorrect code when -gen-function -funcname -for are used

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1516

           Summary: llvm2cpp generates incorrect code when -gen-function -
                    funcname  -for are used
           Product: new-bugs
           Version: unspecified
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: letz at grame.fr


llvm2cpp  generates incorrcect code in the following case:

1) compile the following function to substitute_bug.bc:

#include <stdio.h>

extern "C" void NewMarker1()
{
	printf("NewMarker1 \n");
}

2) lvm2cpp  -f  -gen-function -funcname=makeNewMarker1 -for=NewMarker1 substitute_bug.bc -o 
substitute_bug.bc.cpp

// Generated by llvm2cpp - DO NOT MODIFY!


Function* makeNewMarker1(Module *mod) {

// Type Definitions
std::vector<const Type*>FuncTy_0_args;
ParamAttrsList *FuncTy_0_PAL = 0;
FunctionType* FuncTy_0 = FunctionType::get(
  /*Result=*/Type::VoidTy,
  /*Params=*/FuncTy_0_args,
  /*isVarArg=*/false,
  /*ParamAttrs=*/FuncTy_0_PAL);

PointerType* PointerTy_1 = PointerType::get(IntegerType::get(8));

ArrayType* ArrayTy_3 = ArrayType::get(IntegerType::get(8), 12);

PointerType* PointerTy_2 = PointerType::get(ArrayTy_3);

std::vector<const Type*>FuncTy_5_args;
FuncTy_5_args.push_back(PointerTy_1);
ParamAttrsList *FuncTy_5_PAL = 0;
FunctionType* FuncTy_5 = FunctionType::get(
  /*Result=*/IntegerType::get(32),
  /*Params=*/FuncTy_5_args,
  /*isVarArg=*/false,
  /*ParamAttrs=*/FuncTy_5_PAL);

PointerType* PointerTy_4 = PointerType::get(FuncTy_5);


// Function Declarations

Function* func_puts = new Function(
  /*Type=*/FuncTy_5,
  /*Linkage=*/GlobalValue::ExternalLinkage,
  /*Name=*/"puts", mod); // (external, no body)
func_puts->setCallingConv(CallingConv::C);

// Global Variable Declarations

GlobalVariable* gvar_array__str = new GlobalVariable(
/*Type=*/ArrayTy_3,
/*isConstant=*/true,
/*Linkage=*/GlobalValue::InternalLinkage,
/*Initializer=*/0, // has initializer, specified below
/*Name=*/".str",
mod);

// Constant Definitions
Constant* const_int32_6 = Constant::getNullValue(IntegerType::get(32));

// Global Variable Definitions
gvar_array__str->setInitializer(const_array_7);

Function* func_NewMarker1 = new Function(
  /*Type=*/FuncTy_0,
  /*Linkage=*/GlobalValue::ExternalLinkage,
  /*Name=*/"NewMarker1", mod); 
func_NewMarker1->setCallingConv(CallingConv::C);

BasicBlock* label_entry = new BasicBlock("entry",func_NewMarker1,0);
BasicBlock* label_return = new BasicBlock("return",func_NewMarker1,0);

// Block entry (label_entry)
std::vector<Value*> ptr_tmp_indices;
ptr_tmp_indices.push_back(const_int32_6);
ptr_tmp_indices.push_back(const_int32_6);
Instruction* ptr_tmp = new GetElementPtrInst(gvar_array__str, &ptr_tmp_indices[0], 2, "tmp", 
label_entry);
CallInst* int32_tmp1 = new CallInst(func_puts, ptr_tmp, "tmp1", label_entry);
int32_tmp1->setCallingConv(CallingConv::C);
int32_tmp1->setTailCall(false);
new BranchInst(label_return, label_entry);

// Block return (label_return)
new ReturnInst(label_return);
return func_NewMarker1;
}
 
The "const_array_7" constant definition is missing from the generated code.



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