llvm dev - Jun 2013 - [LLVMdev] About writing a modulePass in addPreEmitPass() for NVPTX

I write my pass in a mix way of NVPTXAllocaHoisting, NVPTXSplitBBatBar and
transforms/Hello.

The following is part of the codes:

in NVPTXTargetMachine.cpp

bool NVPTXPassConfig::addPreEmitPass()
{
    addPass(createTest());   
    return false;
}     

in NVPTXTest.h

namespace llvm{
class NVPTXTest : public ModulePass
{
    void getAnalysisUsage(AnalysisUsage &AU) const {       
AU.setPreservesAll();   }
};
extern ModulePass *createTest();
}

in NVPTXTest.cpp

namespace llvm
{
char NVPTXTest::ID = 0;
static RegisterPass<NVPTXTest> X("test", "Test Module
Pass");
ModulePass *createTest() {    return new NVPTXTest();  }
}

Thanks
Antony Yu




--
View this message in context:
http://llvm.1065342.n5.nabble.com/About-writing-a-modulePass-in-addPreEmitPass-for-NVPTX-tp58701p58752.html
Sent from the LLVM - Dev mailing list archive at Nabble.com.

I try to use INITIALIZE_PASS instead of RegisterPass<> to register my
pass,
though I don't understand what's their difference and how it works
because
its documents doesn't exist. But it still doesn't work.

Parts of my codes is as follows:

in  NVPTXTest.h

namespace llvm {

void initializeNVPTXTestPass(PassRegistry &r);

class NVPTXTest : public ModulePass
{
public:

    NVPTXTest() : ModulePass(ID){
        initializeNVPTXTestPass(*PassRegistry::getPassRegistry());
    }
    void getAnalysisUsage(AnalysisUsage &AU) const {
        AU.setPreservesAll();
        ModulePass::getAnalysisUsage(AU);
    }

};

in NVPTXTest.cpp

#include "NVPTXTest.h"

namespace llvm
{
    //static RegisterPass<NVPTXTest> X("test", "Test Module
Pass");
    char NVPTXTest::ID = 0;
    ModulePass *createTest()
    {
        return new NVPTXTest();
    }
}
using namespace llvm;

INITIALIZE_PASS(NVPTXTest, "test", "TestModule Pass", true,
true);
===When I use the same way to write a CallGraphSCCPass, it still doesn't
work,
but this time it tells me that my CallGraphSCCPass is not initialized
instead of 'NVPTX Assembly Printer'.
It's really weird...




--
View this message in context:
http://llvm.1065342.n5.nabble.com/About-writing-a-modulePass-in-addPreEmitPass-for-NVPTX-tp58701p58770.html
Sent from the LLVM - Dev mailing list archive at Nabble.com.

Sorry for the delay.  Yeah, that error message is a bit confusing.  What's
happening is that your pass sequence is invalid.  Once the IR has been
lowered to machine code, its too late to run LLVM IR passes (ModulePass,
FunctionPass, CallGraphSCCPass, etc.).  At that point, you need to run a
Machine*Pass, e.g. MachineFunctionPass.  If you need to run an IR level
pass, you need to use addIRPasses().


On Mon, Jun 24, 2013 at 11:20 AM, Antony Yu <swpenim at gmail.com> wrote:
> I try to use INITIALIZE_PASS instead of RegisterPass<> to register my
pass,
> though I don't understand what's their difference and how it works
because
> its documents doesn't exist. But it still doesn't work.
>
> Parts of my codes is as follows:
>
> in  NVPTXTest.h
>
> namespace llvm {
>
> void initializeNVPTXTestPass(PassRegistry &r);
>
> class NVPTXTest : public ModulePass
> {
> public:
>
>     NVPTXTest() : ModulePass(ID){
>         initializeNVPTXTestPass(*PassRegistry::getPassRegistry());
>     }
>     void getAnalysisUsage(AnalysisUsage &AU) const {
>         AU.setPreservesAll();
>         ModulePass::getAnalysisUsage(AU);
>     }
>
> };
>
> in NVPTXTest.cpp
>
> #include "NVPTXTest.h"
>
> namespace llvm
> {
>     //static RegisterPass<NVPTXTest> X("test", "Test
Module Pass");
>     char NVPTXTest::ID = 0;
>     ModulePass *createTest()
>     {
>         return new NVPTXTest();
>     }
> }
> using namespace llvm;
>
> INITIALIZE_PASS(NVPTXTest, "test", "TestModule Pass",
true, true);
> ===> When I use the same way to write a CallGraphSCCPass, it still
doesn't work,
> but this time it tells me that my CallGraphSCCPass is not initialized
> instead of 'NVPTX Assembly Printer'.
> It's really weird...
>
>
>
>
> --
> View this message in context:
>
http://llvm.1065342.n5.nabble.com/About-writing-a-modulePass-in-addPreEmitPass-for-NVPTX-tp58701p58770.html
> Sent from the LLVM - Dev mailing list archive at Nabble.com.
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>


-- 

Thanks,

Justin Holewinski
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20130624/b3ee415a/attachment.html>