Soham Sinha via llvm-dev
2018-Jun-25 21:03 UTC
[llvm-dev] How to include a opt pass in clang driver
Hi Eli, I have tried that: static void registerMyPass(const PassManagerBuilder &, llvm::legacy::PassManagerBase &PM) { PM.add(new MyPass()); } static RegisterStandardPasses RegisterMyPass(PassManagerBuilder::EP_OptimizerLast, registerMyPass); It still couldn't find my pass. Regards, Soham Sinha PhD Student, Department of Computer Science Boston University On Mon, Jun 25, 2018 at 3:58 PM Friedman, Eli <efriedma at codeaurora.org> wrote:> On 6/25/2018 1:38 PM, Soham Sinha via llvm-dev wrote: > > Hello, > > > > I have written a pass for the IR and I can run it with opt -load > > lib/LLVMMyPass.so -mypass -myarguments -S -o output.ll < output.bc > > > > I have registered my pass with the following code: > > static RegisterPass<MyPass> > > X("mypass", "MyPass Pass (with getAnalysisUsage implemented)"); > > > > How do I include the same pass in the clang driver. I tried running > > the pass: > > > > clang output.c -o output -Xclang -load -Xclang lib/LLVMMyPass.so > > -mypass -myarguments > > > > However, the pass is not being run as I cannot see output from my > > pass. What is the standard way to do it? > > See RegisterStandardPasses in llvm/Transforms/IPO/PassManagerBuilder.h . > > -Eli > > -- > Employee of Qualcomm Innovation Center, Inc. > Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux > Foundation Collaborative Project > >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20180625/989f3255/attachment.html>
Friedman, Eli via llvm-dev
2018-Jun-25 21:20 UTC
[llvm-dev] How to include a opt pass in clang driver
On 6/25/2018 2:03 PM, Soham Sinha wrote:> Hi Eli, > > I have tried that: > > static void registerMyPass(const PassManagerBuilder &, > llvm::legacy::PassManagerBase &PM) { > PM.add(new MyPass()); > } > > static RegisterStandardPasses > RegisterMyPass(PassManagerBuilder::EP_OptimizerLast, > registerMyPass);OptimizerLast doesn't run unless you turn on optimizations (-O2). Maybe that's the issue? -Eli -- Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
Soham Sinha via llvm-dev
2018-Jun-26 00:40 UTC
[llvm-dev] How to include a opt pass in clang driver
Yeah it worked. Thank you so much! Correct command clang output.c -o output -Xclang -load -Xclang lib/LLVMMyPass.so -mllvm -myarguments Regards, Soham Sinha PhD Student, Department of Computer Science Boston University On Mon, Jun 25, 2018 at 4:21 PM Friedman, Eli <efriedma at codeaurora.org> wrote:> On 6/25/2018 2:03 PM, Soham Sinha wrote: > > Hi Eli, > > > > I have tried that: > > > > static void registerMyPass(const PassManagerBuilder &, > > llvm::legacy::PassManagerBase &PM) { > > PM.add(new MyPass()); > > } > > > > static RegisterStandardPasses > > RegisterMyPass(PassManagerBuilder::EP_OptimizerLast, > > registerMyPass); > > OptimizerLast doesn't run unless you turn on optimizations (-O2). Maybe > that's the issue? > > -Eli > > -- > Employee of Qualcomm Innovation Center, Inc. > Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux > Foundation Collaborative Project > >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20180625/7771c90f/attachment.html>