I am just getting started with llvm.
Here's code I am trying to compile:
#include <stdio.h>#include "llvm/IR/LLVMContext.h"#include
"llvm/IR/Module.h"#include "llvm/IR/IRBuilder.h"
int main(){
llvm::LLVMContext& context = llvm::getGlobalContext();
llvm::Module* module = new llvm::Module("top", context);
llvm::IRBuilder<> builder(context);
module->dump( );}
when i compile with :
llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS
`llvm-config --cxxflags --ldflags --libs`
I get the a.out file. No worries.
But, I am interested in getting the LLVM IR file.So, I compiled with
llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -S -emit-llvm
lli try.s
I get an error saying
LLVM ERROR: Program used external function
'_ZN4llvm16getGlobalContextEv' which could not be resolved!
The command :
llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS
`llvm-config --cxxflags --ldflags --libs` -S -emit-llvm
leaves me with several warnings and when i execute the resultant .s file
with lli , I get the same error as before.
Thanks a lot for your help
Thank you,
Prakash Premkumar
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What version of LLVM are you using? llvm-gcc was deprecated a long time ago, and
while it doesn’t directly address your question, I suggest trying with
clang(++).
- Chris
On Aug 1, 2014, at 8:32 AM, Prakash Premkumar <prakash.prax at
gmail.com<mailto:prakash.prax at gmail.com>> wrote:
I am just getting started with llvm.
Here's code I am trying to compile:
#include <stdio.h>
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/IRBuilder.h"
int main()
{
llvm::LLVMContext& context = llvm::getGlobalContext();
llvm::Module* module = new llvm::Module("top", context);
llvm::IRBuilder<> builder(context);
module->dump( );
}
when i compile with :
llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS `llvm-config
--cxxflags --ldflags --libs`
I get the a.out file. No worries.
But, I am interested in getting the LLVM IR file.So, I compiled with
llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -S -emit-llvm
lli try.s
I get an error saying
LLVM ERROR: Program used external function
'_ZN4llvm16getGlobalContextEv' which could not be resolved!
The command :
llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS `llvm-config
--cxxflags --ldflags --libs` -S -emit-llvm
leaves me with several warnings and when i execute the resultant .s file with
lli , I get the same error as before.
Thanks a lot for your help
Thank you,
Prakash Premkumar
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LLVMdev at cs.uiuc.edu<mailto:LLVMdev at cs.uiuc.edu>
http://llvm.cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
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Thank you Chris. I am using llvm-3.4.2. I am facing the same issue when using clang++ as well. $ clang++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS `llvm-config --cxxflags --ldflags --libs` -S -emit-llvm gives me errors $clang++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -S -emit-llvm $ lli try.s gives me Program used external function '_ZN4llvm16getGlobalContextEv' which could not be resolved! Thank you On Fri, Aug 1, 2014 at 7:25 PM, Chris Cadwallader <ccadwallader at arxan.com> wrote:> What version of LLVM are you using? llvm-gcc was deprecated a long time > ago, and while it doesn’t directly address your question, I suggest trying > with clang(++). > > - Chris > > On Aug 1, 2014, at 8:32 AM, Prakash Premkumar <prakash.prax at gmail.com> > wrote: > > I am just getting started with llvm. > > Here's code I am trying to compile: > > #include <stdio.h>#include "llvm/IR/LLVMContext.h"#include "llvm/IR/Module.h"#include "llvm/IR/IRBuilder.h" > > int main(){ > llvm::LLVMContext& context = llvm::getGlobalContext(); > llvm::Module* module = new llvm::Module("top", context); > llvm::IRBuilder<> builder(context); > > module->dump( );} > > when i compile with : > > llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS `llvm-config --cxxflags --ldflags --libs` > > I get the a.out file. No worries. > > But, I am interested in getting the LLVM IR file.So, I compiled with > > llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -S -emit-llvm > lli try.s > > I get an error saying > > LLVM ERROR: Program used external function '_ZN4llvm16getGlobalContextEv' which could not be resolved! > > The command : > > llvm-g++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS `llvm-config --cxxflags --ldflags --libs` -S -emit-llvm > > leaves me with several warnings and when i execute the resultant .s file > with lli , I get the same error as before. > > Thanks a lot for your help > > > Thank you, > > Prakash Premkumar > _______________________________________________ > 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/20140802/49c1e874/attachment.html>