I am preparing another patch to address the failure that prompted
Chris to revert this patch earlier.
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Pass info objects are initialized by static ctors, so deleting them at
llvm_shutdown time prevents resurrection from working.
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continue to use old pass manager at the moment. To use new manager
remove #define USE_OLD_PASSMANAGER 1 from Pass.h
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This fixes issues where passes get unregistered before llvm_shutdown is
called, and is generally cleaner and simpler. Analysis groups up next.
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Break the "IncludeFile" mechanism into its own header file and adjust other
files accordingly. Use this facility for the IntrinsicInst problem which
was the subject of PR800.
More to follow on this.
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exactly one PassInfo object per RegisterPass object and that their lifetimes
are the same. As such, there is no reason for the RegisterPass object to
dynamically allocate the PassInfo object at compiler startup time: just inline
the object by-value. This should reduce codesize, heap size, and startup time. Yaay.
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This sanitises the world, blows away the specialisations and adds
traits per passmanager type -- seemed most natural.
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Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual
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from ModulePass. Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.
Also, fix some undefined behavior, expecting | on booleans to evaluate
left-to-right.
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Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
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1. The "work" was not in the assert, so it was punishing the optimized release
2. getNamedFunction is _very_ expensive in large programs. It is not designed
to be used like this, and was taking 7% of the execution time of the code
generator on perlbmk.
Since the assert "can never fail", I'm just killing it.
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* FunctionPassManager ctor now takes in a ModuleProvider
* run() materializes function before running passes on it
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* Fix a nasty initializer ordering bug. Any only-CFG passes which registered
themselves before the CFGOnlyAnalysis vector initialized got forgotten and
thus got invalidated and recomputed.
In particular, in my compiled version of gccas, the Loop information pass was
being recomputed unnecessarily.
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ISSUE: getTimeRecord in lib/VMCore/Pass.cpp uses timeval and
gettimeofday() without including sys/time.h.
ACTION: Include sys/time.h.
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implementation .cpp files for analyses are not being included into gccas
and friends because it is linking to the .a file and there is no explicit
symbol reference to bring in the .o file. The new IncludeFile hack is the
result.
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* Implement stuff so that code can declare that they only depend on the CFG of
a function, not on anything else. This speeds up GCCAS a lot.
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* getPassName uses PassInfo if it's available
* PassInfo is now cached in the pass so that it is only looked up once, maximum
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methods
* Eliminate AnalysisID: Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
the analyses themselves.
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Now for llc, gccas, analyze, opt, etc you can specify the -time-passes
command line option that outputs a timing summary report that indicates
how long each pass takes to execute.
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modify the CFG. It currently does nothing, but will in the future.
* Changes to make the public PassManager.h be MUCH smaller, and devoid of
implementation details. Now PassManager is just a Pimpl class that wraps
PassManagerT<Module>, but lib/VMCore/Pass.cpp is now the only class that
has to #include PassManagerT.h
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- Rename runOnMethod to runOnFunction
* Transform getAnalysisUsageInfo into getAnalysisUsage
- Method is now const
- It now takes one AnalysisUsage object to fill in instead of 3 vectors
to fill in
- Pass's now specify which other passes they _preserve_ not which ones
they modify (be conservative!)
- A pass can specify that it preserves all analyses (because it never
modifies the underlying program)
* s/Method/Function/g in other random places as well
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Method::inst_* is now in llvm/Support/InstIterator.h
GraphTraits specializations for BasicBlock and Methods are now in llvm/Support/CFG.h
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* Implement pass memory freeing after the pass is unused
* Expose PassManager typedef in Pass.h instead of PassManager.h
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* Remember to initialize MethodPassBatcher::BBPBatcher instance var in ctor
* Move PassManager::run() from header file
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