search for: ep_moduleoptimizerearly

Hi Tobias, I am trying to move Polly later. LLVM provides some predefined ExtensionPointTy: EP_EarlyAsPossible, EP_ModuleOptimizerEarly, EP_LoopOptimizerEnd, EP_ScalarOptimizerLate, ... Currently Polly uses "EP_EarlyAsPossible" to run as early as possible. As what you suggested: >Instead of removing canonicalization passes, I believe we may want to >move Polly to a later place in the pass manager. Po...

On 09/19/2013 04:46 PM, Star Tan wrote: > Hi Tobias, > > > I am trying to move Polly later. > > > LLVM provides some predefined ExtensionPointTy: > EP_EarlyAsPossible, > EP_ModuleOptimizerEarly, > EP_LoopOptimizerEnd, > EP_ScalarOptimizerLate, > ... > > > Currently Polly uses "EP_EarlyAsPossible" to run as early as possible. As what you suggested: >> Instead of removing canonicalization passes, I believe we may want to >> move Polly...

On 09/17/2013 04:12 AM, Star Tan wrote: > Now, we come to more evaluations on http://188.40.87.11:8000/db_default/v4/nts/recent_activity Hi Star Tan, thanks for this very extensive analysis. The results look very interesting. As you found out, just removing some canonicalization passes will reduce compile time, but this reduction may in large part being due to Polly not being able to

Hello all, I've followed the example in https://github.com/CompilerTeaching/SimplePass/blob/master/SimplePass.cc in order to create a custom pass. The pass needs to be added before any transformation, so I used EP_EarlyAsPossible extension point to register it. Furthermore, I need to access to every GlobalVariable in the IR, so my pass has to be a ModulePass, like this: struct MyPass :

...s Grosser" <tobias at grosser.es> wrote: >On 09/19/2013 04:46 PM, Star Tan wrote: >> Hi Tobias, >> >> >> I am trying to move Polly later. >> >> >> LLVM provides some predefined ExtensionPointTy: >> EP_EarlyAsPossible, >> EP_ModuleOptimizerEarly, >> EP_LoopOptimizerEnd, >> EP_ScalarOptimizerLate, >> ... >> >> >> Currently Polly uses "EP_EarlyAsPossible" to run as early as possible. As what you suggested: >>> Instead of removing canonicalization passes, I believe we may...

...ly enable the pass. //http://adriansampson.net/blog/clangpass.html static void registerSkeletonPass(const PassManagerBuilder &, legacy::PassManagerBase &PM) { PM.add(new SkeletonPass()); } static RegisterStandardPasses RegisterMyPass(PassManagerBuilder::EP_ModuleOptimizerEarly, registerSkeletonPass); static RegisterStandardPasses RegisterMyPass0(PassManagerBuilder::EP_EnabledOnOptLevel0, registerSkeletonPass); -------- /snip------ Invocation per: clang -Xclang -load -Xclang /path/to/llvm-pass-skeleton/build/skeleton/libSkeletonPass.so -g test.c I use clang 4.0.1...

...ias Grosser" <tobias at grosser.es> wrote:>On 09/19/2013 04:46 PM, Star Tan wrote: >> Hi Tobias, >> >> >> I am trying to move Polly later. >> >> >> LLVM provides some predefined ExtensionPointTy: >>      EP_EarlyAsPossible, >>      EP_ModuleOptimizerEarly, >>      EP_LoopOptimizerEnd, >>      EP_ScalarOptimizerLate, >>      ... >> >> >> Currently Polly uses "EP_EarlyAsPossible" to run as early as possible.  As what you suggested: >>> Instead of removing canonicalization passes, I believe we may...

Now, we come to more evaluations on http://188.40.87.11:8000/db_default/v4/nts/recent_activity I mainly care about the compile-time and execution time impact for the following cases: pBasic (run 45): clang -O3 -load LLVMPolly.so pNoGenSCEV (run 44): clang -O3 -load LLVMPolly.so -polly-codegen-scev -polly -polly-optimizer=none -polly-code-generator=none pNoGenSCEV_nocan (run 47): same option

...b.bc -o fun_lib.s gcc test_clang.s fun_lib.s -o test.native When the Pass is registered by the following code: static void registerCPI(const PassManagerBuilder &, legacy::PassManagerBase &PM){ PM.add(new CPI()); } static RegisterStandardPasses RegisterMyPass(PassManagerBuilder::EP_ModuleOptimizerEarly, registerCPI); static RegisterStandardPasses RegisterMyPass0(PassManagerBuilder::EP_EnabledOnOptLevel0, registerCPI); And compiled with the following command: comp_3: clang -Xclang -load -Xclang ${LLVM_LIB}/LLVMCPI.so -O0 -c test.c clang -Xclang -load -Xclang ${LLVM_LIB}/LLVMCPI.so -O0 -c fun_lib...

...s didn’t help: `runOnFunction` was called, but `alias` never was. Additionally, now that I moved from `INITIALIZE_AG_PASS` to `RegisterPass<T>`, trying this causes an assert to trigger with the message "No default implementation found for analysis group!" The second was to use the `EP_ModuleOptimizerEarly` extension point, since it is called right after the other AA passes are added. This makes my pass the last AA pass to be added. Same result: `runOnFunction` was called, but `alias` never was. So what am I missing? How can I use my alias analysis pass? Félix -------------- next part ------------...