Hi all,
Please i need help, I have a method that takes 2 arguments with type char *:
void branchPredict(char *b1, char *b2){
---
--
}
i'm supposed to add this method, in an IR basic bloc:
to add it into a basic bloc i do:
//i: is the basic bloc
std::vector<Value*> void_43_params;
Constant* tbname = ConstantArray::get(M.getContext(),i->getNameStr() ,
true);
Constant* pbname = ConstantArray::get(M.getContext(),
i->getPrevNode()->getNameStr(), true);
void_43_params.push_back(tbname);
void_43_params.push_back(pbname);
CallInst* void_43 = CallInst::Create(func_branchPredict,
void_43_params.begin(), void_43_params.end(), "",
i->getTerminator());
when i execute the pass (opt -load ....) i get an error:
Call parameter type does not match function signature!
[3 x i8] c"bb\00"
i8* call void @branchPredict([3 x i8] c"bb\00", [4 x i8]
c"bb1\00")
Call parameter type does not match function signature!
[4 x i8] c"bb5\00"
i8* call void @branchPredict([4 x i8] c"bb5\00", [18 x i8]
c"bb3.bb3_crit_edge\00")
Broken module found, compilation aborted!
0 libLLVM-2.8.so.1 0x01421628
Stack dump:
0. Program arguments: opt -load
/home/inspiron/PhdWork/llvm-2.8/Release/lib/Example.so -Example6
1. Running pass 'Function Pass Manager' on module
'<stdin>'.
2. Running pass 'Module Verifier' on function '@main'
Aborted
Any help
thanks
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On 5/20/11 5:46 PM, Nabila ABDESSAIED wrote:> Hi all, > > Please i need help, I have a method that takes 2 arguments with type > char *: > void branchPredict(char *b1, char *b2){ > --- > -- > } > i'm supposed to add this method, in an IR basic bloc: > to add it into a basic bloc i do:The problem is that you are passing arrays to the function instead of passing pointers to arrays. Instead of making tbname and pbname arguments to the function, you need to create GlobalVariable's that have, as their initializer, the Constant's tbname and pbname. You may also have to take the GlobalVariables and insert a cast instruction (bitcast) to cast them from pointers to arrays to pointers of i8. However, that is easy to do. See line 138 of lib/DebugInstrumentation/DebugInstrumentation.cpp in the SAFECode source tree (directions for getting it from SVN are at http://safecode.cs.illinois.edu under the Download link). I think it is similar to what you want to do. -- John T.> > //i: is the basic bloc > std::vector<Value*> void_43_params; > Constant* tbname = ConstantArray::get(M.getContext(),i->getNameStr() , > true); > Constant* pbname = ConstantArray::get(M.getContext(), > i->getPrevNode()->getNameStr(), true); > void_43_params.push_back(tbname); > void_43_params.push_back(pbname); > CallInst* void_43 = CallInst::Create(func_branchPredict, > void_43_params.begin(), void_43_params.end(), "", i->getTerminator()); > > when i execute the pass (opt -load ....) i get an error: > > Call parameter type does not match function signature! > [3 x i8] c"bb\00" > i8* call void @branchPredict([3 x i8] c"bb\00", [4 x i8] c"bb1\00") > Call parameter type does not match function signature! > [4 x i8] c"bb5\00" > i8* call void @branchPredict([4 x i8] c"bb5\00", [18 x i8] > c"bb3.bb3_crit_edge\00") > Broken module found, compilation aborted! > 0 libLLVM-2.8.so.1 0x01421628 > Stack dump: > 0.Program arguments: opt -load > /home/inspiron/PhdWork/llvm-2.8/Release/lib/Example.so -Example6 > 1.Running pass 'Function Pass Manager' on module '<stdin>'. > 2.Running pass 'Module Verifier' on function '@main' > Aborted > > Any help > thanks > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110520/f12775d4/attachment.html>
On Fri, May 20, 2011 at 3:46 PM, Nabila ABDESSAIED <nabila.abdessaied at gmail.com> wrote:> Hi all, > Please i need help, I have a method that takes 2 arguments with type char *: > void branchPredict(char *b1, char *b2){ > --- > -- > } > i'm supposed to add this method, in an IR basic bloc: > to add it into a basic bloc i do: > //i: is the basic bloc > std::vector<Value*> void_43_params; > Constant* tbname = ConstantArray::get(M.getContext(),i->getNameStr() , > true); > Constant* pbname = ConstantArray::get(M.getContext(), > i->getPrevNode()->getNameStr(), true); > void_43_params.push_back(tbname); > void_43_params.push_back(pbname); > CallInst* void_43 = CallInst::Create(func_branchPredict, > void_43_params.begin(), void_43_params.end(), "", i->getTerminator()); > when i execute the pass (opt -load ....) i get an error: > > Call parameter type does not match function signature! > [3 x i8] c"bb\00" > i8* call void @branchPredict([3 x i8] c"bb\00", [4 x i8] c"bb1\00") > Call parameter type does not match function signature! > [4 x i8] c"bb5\00" > i8* call void @branchPredict([4 x i8] c"bb5\00", [18 x i8] > c"bb3.bb3_crit_edge\00") > Broken module found, compilation aborted! > 0 libLLVM-2.8.so.1 0x01421628 > Stack dump: > 0. Program arguments: opt -load > /home/inspiron/PhdWork/llvm-2.8/Release/lib/Example.so -Example6 > 1. Running pass 'Function Pass Manager' on module '<stdin>'. > 2. Running pass 'Module Verifier' on function '@main' > AbortedYou can't pass an array into a call expecting a pointer; try looking at the output of http://llvm.org/demo/ for "void foo(char*); void bar(void) { foo("asdf"); }". -Eli
2011/5/20 John Criswell <criswell at illinois.edu>> On 5/20/11 5:46 PM, Nabila ABDESSAIED wrote: > > Hi all, > > Please i need help, I have a method that takes 2 arguments with type char > *: > void branchPredict(char *b1, char *b2){ > --- > -- > } > i'm supposed to add this method, in an IR basic bloc: > to add it into a basic bloc i do: > > > The problem is that you are passing arrays to the function instead of > passing pointers to arrays. Instead of making tbname and pbname arguments > to the function, you need to create GlobalVariable's that have, as their > initializer, the Constant's tbname and pbname. >i couldn't use that sollution because i repeat the process in each basic bloc in a function. the globalvariable could be initiallized with constants that have the same array type but in my case the constants i get in each basic bloc haven't the same array type> > You may also have to take the GlobalVariables and insert a cast instruction > (bitcast) to cast them from pointers to arrays to pointers of i8. However, > that is easy to do. > > See line 138 of lib/DebugInstrumentation/DebugInstrumentation.cpp in the > SAFECode source tree (directions for getting it from SVN are at > http://safecode.cs.illinois.edu under the Download link). I think it is > similar to what you want to do. >ok , i will use this. i have seen it and here is what i did std::string fbname =i->getNameStr(); std::string tbname = i->getPrevNode()->getNameStr(); Constant * tname ConstantArray::get(Context, tbname); Constant * fname ConstantArray::get(Context, fbname); Value * TBloc, *FBloc; TBloc = new GlobalVariable(M, tname->getType(), true, GlobalValue::InternalLinkage, tname, "tBloc"); FBloc = new GlobalVariable(M, fname->getType(), true, GlobalValue::InternalLinkage, fname, "fBloc"); std::vector<Value*> void_43_params; void_43_params.push_back(TBloc); void_43_params.push_back(FBloc); CallInst* void_43 CallInst::Create(func_branchPredict, void_43_params.begin(), void_43_params.end(), "", i->getTerminator()); but i have error : Call parameter type does not match function signature! [3 x i8]* @tBloc i8* call void @branchPredict([3 x i8]* @tBloc, [3 x i8]* @fBloc) Call parameter type does not match function signature! [4 x i8]* @tBloc3 i8* call void @branchPredict([4 x i8]* @tBloc3, [4 x i8]* @fBloc4) Broken module found, compilation aborted! 0 libLLVM-2.8.so.1 0x014c7628 Stack dump: 0. Program arguments: opt -load /home/inspiron/PhdWork/llvm-2.8/Release/lib/Example.so -Example6 1. Running pass 'Function Pass Manager' on module '<stdin>'. 2. Running pass 'Module Verifier' on function '@main' Aborted> > -- John T. > > > //i: is the basic bloc > std::vector<Value*> void_43_params; > Constant* tbname = ConstantArray::get(M.getContext(),i->getNameStr() , > true); > Constant* pbname = ConstantArray::get(M.getContext(), > i->getPrevNode()->getNameStr(), true); > void_43_params.push_back(tbname); > void_43_params.push_back(pbname); > CallInst* void_43 = CallInst::Create(func_branchPredict, > void_43_params.begin(), void_43_params.end(), "", i->getTerminator()); > > when i execute the pass (opt -load ....) i get an error: > > > Call parameter type does not match function signature! > [3 x i8] c"bb\00" > i8* call void @branchPredict([3 x i8] c"bb\00", [4 x i8] c"bb1\00") > Call parameter type does not match function signature! > [4 x i8] c"bb5\00" > i8* call void @branchPredict([4 x i8] c"bb5\00", [18 x i8] > c"bb3.bb3_crit_edge\00") > Broken module found, compilation aborted! > 0 libLLVM-2.8.so.1 0x01421628 > Stack dump: > 0. Program arguments: opt -load > /home/inspiron/PhdWork/llvm-2.8/Release/lib/Example.so -Example6 > 1. Running pass 'Function Pass Manager' on module '<stdin>'. > 2. Running pass 'Module Verifier' on function '@main' > Aborted > > > Any help > thanks > > > _______________________________________________ > LLVM Developers mailing listLLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.eduhttp://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > > >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110521/55686f1b/attachment.html>