remove StandardPasses, it has been replaced with PassManagerBuilder

llvm-svn: 131827
This commit is contained in:
Chris Lattner 2011-05-22 00:30:45 +00:00
parent 3d70addad7
commit b5865ded27
3 changed files with 0 additions and 651 deletions

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@ -1,403 +0,0 @@
//===-- llvm/Support/StandardPasses.h - Standard pass lists -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines utility functions for creating a "standard" set of
// optimization passes, so that compilers and tools which use optimization
// passes use the same set of standard passes.
//
// These are implemented as inline functions so that we do not have to worry
// about link issues.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_STANDARDPASSES_H
#define LLVM_SUPPORT_STANDARDPASSES_H
#include "llvm/PassManager.h"
#include "llvm/DefaultPasses.h"
#include "llvm/Analysis/Passes.h"
#include "llvm/Analysis/Verifier.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/IPO.h"
namespace llvm {
//template<Pass*(*X)(void)> static Pass *CreatePassFn(void) { return X(); }
/// RegisterStandardPassLists solves a circular dependency problem. The
/// default list of passes has to live somewhere. It can't live in the core
/// modules, because these don't link to the libraries that actually define
/// the passes. It's in this header, so that a copy is created in every
/// library that requests the default set, while still allowing plugins to
/// register new passes without requiring them to link anything more than
/// VMCore.
class RegisterStandardPassLists {
public:
RegisterStandardPassLists() {
StandardPass::RegisterDefaultPasses = RegisterStandardPassList;
StandardPass::CreateVerifierPass = CreateVerifierPass;
}
private:
/// Define a set of function overloads that does the casting for us, so
/// that we can perform safe function pointer casts, but catch unsafe ones.
PassInfo::NormalCtor_t static CreatePassFn(llvm::ImmutablePass*(*X)(void)) {
return reinterpret_cast<PassInfo::NormalCtor_t>(X);
}
PassInfo::NormalCtor_t static CreatePassFn(llvm::ModulePass*(*X)(void)) {
return reinterpret_cast<PassInfo::NormalCtor_t>(X);
}
PassInfo::NormalCtor_t static CreatePassFn(llvm::FunctionPass*(*X)(void)) {
return reinterpret_cast<PassInfo::NormalCtor_t>(X);
}
PassInfo::NormalCtor_t static CreatePassFn(llvm::Pass*(*X)(void)) {
return reinterpret_cast<PassInfo::NormalCtor_t>(X);
}
static llvm::Pass *CreateVerifierPass() { return createVerifierPass(); }
/// Passes must be registered with functions that take no arguments, so we have
/// to wrap their existing constructors.
static Pass *createScalarReplAggregatesPass(void) {
return llvm::createScalarReplAggregatesPass();
}
static Pass *createSSAScalarReplAggregatesPass(void) {
return llvm::createScalarReplAggregatesPass(-1, false);
}
static Pass *createDefaultLoopUnswitchPass(void) {
return createLoopUnswitchPass(false);
}
static Pass *createSizeOptimizingLoopUnswitchPass(void) {
return createLoopUnswitchPass(true);
}
static Pass *createArgumentPromotionPass(void) {
return llvm::createArgumentPromotionPass();
}
static Pass *createLoopUnrollPass(void) {
return llvm::createLoopUnrollPass();
}
static Pass *createGVNPass(void) {
return llvm::createGVNPass();
}
static void RegisterStandardPassList(void) {
// Standard alias analysis passes
// Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
// BasicAliasAnalysis wins if they disagree. This is intended to help
// support "obvious" type-punning idioms.
#define DEFAULT_ALIAS_ANALYSIS_PASS(pass, flags)\
StandardPass::RegisterDefaultPass(\
CreatePassFn(create ## pass ## Pass),\
&DefaultStandardPasses::pass ## ID, (unsigned char*)0, StandardPass::AliasAnalysis, flags)
DEFAULT_ALIAS_ANALYSIS_PASS(TypeBasedAliasAnalysis, 0);
DEFAULT_ALIAS_ANALYSIS_PASS(BasicAliasAnalysis, 0);
#undef DEFAULT_ALIAS_ANALYSIS_PASS
#define DEFAULT_FUNCTION_PASS(pass, flags)\
StandardPass::RegisterDefaultPass(\
CreatePassFn(create ## pass ## Pass),\
&DefaultStandardPasses::pass ## ID, 0, StandardPass::Function, flags)
DEFAULT_FUNCTION_PASS(CFGSimplification,
StandardPass::OptimzationFlags(1));
DEFAULT_FUNCTION_PASS(ScalarReplAggregates,
StandardPass::OptimzationFlags(1));
DEFAULT_FUNCTION_PASS(EarlyCSE, StandardPass::OptimzationFlags(1));
#undef DEFAULT_FUNCTION_PASS
#define DEFAULT_MODULE_PASS(pass, flags)\
StandardPass::RegisterDefaultPass(\
CreatePassFn(create ## pass ## Pass),\
&DefaultStandardPasses::pass ## ID, 0, StandardPass::Module, flags)
// Optimize out global vars
DEFAULT_MODULE_PASS(GlobalOptimizer,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnitAtATime));
// IP SCCP
DEFAULT_MODULE_PASS(IPSCCP,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnitAtATime));
// Dead argument elimination
DEFAULT_MODULE_PASS(DeadArgElimination,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnitAtATime));
// Clean up after IPCP & DAE
DEFAULT_MODULE_PASS(InstructionCombining,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnitAtATime));
// Clean up after IPCP & DAE
DEFAULT_MODULE_PASS(CFGSimplification,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnitAtATime));
// Remove dead EH info
DEFAULT_MODULE_PASS(PruneEH, StandardPass::OptimzationFlags(0, 0,
StandardPass::UnitAtATime | StandardPass::HaveExceptions));
// Placeholder that will be replaced by an inliner if one is specified
StandardPass::RegisterDefaultPass(0,
&DefaultStandardPasses::InlinerPlaceholderID, 0,
StandardPass::Module);
// Set readonly/readnone attrs
DEFAULT_MODULE_PASS(FunctionAttrs, StandardPass::OptimzationFlags(0, 0,
StandardPass::UnitAtATime));
// Scalarize uninlined fn args
DEFAULT_MODULE_PASS(ArgumentPromotion, StandardPass::OptimzationFlags(3));
// Start of function pass.
// Break up aggregate allocas, using SSAUpdater.
StandardPass::RegisterDefaultPass(
CreatePassFn(createSSAScalarReplAggregatesPass),
&DefaultStandardPasses::ScalarReplAggregatesID, 0,
StandardPass::Module, 0);
// Catch trivial redundancies
DEFAULT_MODULE_PASS(EarlyCSE, 0);
// Library Call Optimizations
DEFAULT_MODULE_PASS(SimplifyLibCalls,
StandardPass::OptimzationFlags(0, 0, StandardPass::SimplifyLibCalls));
// Thread jumps
DEFAULT_MODULE_PASS(JumpThreading, 0);
// Propagate conditionals
DEFAULT_MODULE_PASS(CorrelatedValuePropagation, 0);
// Merge & remove BBs
DEFAULT_MODULE_PASS(CFGSimplification, 0);
// Combine silly seq's
DEFAULT_MODULE_PASS(InstructionCombining, 0);
// Eliminate tail calls
DEFAULT_MODULE_PASS(TailCallElimination, 0);
// Merge & remove BBs
DEFAULT_MODULE_PASS(CFGSimplification, 0);
// Reassociate expressions
DEFAULT_MODULE_PASS(Reassociate, 0);
// Rotate Loop
DEFAULT_MODULE_PASS(LoopRotate, 0);
// Hoist loop invariants
DEFAULT_MODULE_PASS(LICM, 0);
// Optimize for size if the optimzation level is 0-2
StandardPass::RegisterDefaultPass(
CreatePassFn(createSizeOptimizingLoopUnswitchPass),
&DefaultStandardPasses::LoopUnswitchID, 0,
StandardPass::Module,
StandardPass::OptimzationFlags(0, 2));
// Optimize for size if the optimzation level is >2, and OptimizeSize is
// set
StandardPass::RegisterDefaultPass(
CreatePassFn(createSizeOptimizingLoopUnswitchPass),
&DefaultStandardPasses::LoopUnswitchID, 0,
StandardPass::Module,
StandardPass::OptimzationFlags(3, 0, StandardPass::OptimizeSize));
// Don't optimize for size if optimisation level is >2 and OptimizeSize
// is not set
StandardPass::RegisterDefaultPass(
CreatePassFn(createDefaultLoopUnswitchPass),
&DefaultStandardPasses::LoopUnswitchID, 0,
StandardPass::Module,
StandardPass::OptimzationFlags(3, 0, 0, StandardPass::OptimizeSize));
DEFAULT_MODULE_PASS(InstructionCombining, 0);
// Canonicalize indvars
DEFAULT_MODULE_PASS(IndVarSimplify, 0);
// Recognize idioms like memset.
DEFAULT_MODULE_PASS(LoopIdiom, 0);
// Delete dead loops
DEFAULT_MODULE_PASS(LoopDeletion, 0);
// Unroll small loops
DEFAULT_MODULE_PASS(LoopUnroll,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnrollLoops));
// Remove redundancies
DEFAULT_MODULE_PASS(GVN, StandardPass::OptimzationFlags(2));
// Remove memcpy / form memset
DEFAULT_MODULE_PASS(MemCpyOpt, 0);
// Constant prop with SCCP
DEFAULT_MODULE_PASS(SCCP, 0);
// Run instcombine after redundancy elimination to exploit opportunities
// opened up by them.
DEFAULT_MODULE_PASS(InstructionCombining, 0);
// Thread jumps
DEFAULT_MODULE_PASS(JumpThreading, 0);
DEFAULT_MODULE_PASS(CorrelatedValuePropagation, 0);
// Delete dead stores
DEFAULT_MODULE_PASS(DeadStoreElimination, 0);
// Delete dead instructions
DEFAULT_MODULE_PASS(AggressiveDCE, 0);
// Merge & remove BBs
DEFAULT_MODULE_PASS(CFGSimplification, 0);
// Clean up after everything.
DEFAULT_MODULE_PASS(InstructionCombining, 0);
// Get rid of dead prototypes
DEFAULT_MODULE_PASS(StripDeadPrototypes,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnitAtATime));
// Eliminate dead types
DEFAULT_MODULE_PASS(DeadTypeElimination,
StandardPass::OptimzationFlags(0, 0, StandardPass::UnitAtATime));
// GlobalOpt already deletes dead functions and globals, at -O3 try a
// late pass of GlobalDCE. It is capable of deleting dead cycles.
// Remove dead fns and globals.
DEFAULT_MODULE_PASS(GlobalDCE,
StandardPass::OptimzationFlags(3, 0, StandardPass::UnitAtATime));
// Merge dup global constants
DEFAULT_MODULE_PASS(ConstantMerge,
StandardPass::OptimzationFlags(2, 0, StandardPass::UnitAtATime));
#undef DEFAULT_MODULE_PASS
#define DEFAULT_LTO_PASS(pass, flags)\
StandardPass::RegisterDefaultPass(\
CreatePassFn(create ## pass ## Pass),\
&DefaultStandardPasses::pass ## ID, 0, StandardPass::LTO, flags)
// LTO passes
// Propagate constants at call sites into the functions they call. This
// opens opportunities for globalopt (and inlining) by substituting function
// pointers passed as arguments to direct uses of functions.
DEFAULT_LTO_PASS(IPSCCP, 0);
// Now that we internalized some globals, see if we can hack on them!
DEFAULT_LTO_PASS(GlobalOptimizer, 0);
// Linking modules together can lead to duplicated global constants, only
// keep one copy of each constant...
DEFAULT_LTO_PASS(ConstantMerge, 0);
// Remove unused arguments from functions...
DEFAULT_LTO_PASS(DeadArgElimination, 0);
// Reduce the code after globalopt and ipsccp. Both can open up significant
// simplification opportunities, and both can propagate functions through
// function pointers. When this happens, we often have to resolve varargs
// calls, etc, so let instcombine do this.
DEFAULT_LTO_PASS(InstructionCombining, 0);
// Inline small functions
DEFAULT_LTO_PASS(FunctionInlining,
StandardPass::OptimzationFlags(0, 0xf, StandardPass::RunInliner));
// Remove dead EH info.
DEFAULT_LTO_PASS(PruneEH, 0);
// Optimize globals again if we ran the inliner.
DEFAULT_LTO_PASS(GlobalOptimizer,
StandardPass::OptimzationFlags(0, 0xf, StandardPass::RunInliner));
DEFAULT_LTO_PASS(GlobalDCE, 0);
// If we didn't decide to inline a function, check to see if we can
// transform it to pass arguments by value instead of by reference.
DEFAULT_LTO_PASS(ArgumentPromotion, 0);
// The IPO passes may leave cruft around. Clean up after them.
DEFAULT_LTO_PASS(InstructionCombining, 0);
DEFAULT_LTO_PASS(JumpThreading, 0);
// Break up allocas
DEFAULT_LTO_PASS(ScalarReplAggregates, 0);
// Run a few AA driven optimizations here and now, to cleanup the code.
// Add nocapture.
DEFAULT_LTO_PASS(FunctionAttrs, 0);
// IP alias analysis.
DEFAULT_LTO_PASS(GlobalsModRef, 0);
// Hoist loop invariants.
DEFAULT_LTO_PASS(LICM, 0);
// Remove redundancies.
DEFAULT_LTO_PASS(GVN, 0);
// Remove dead memcpys.
DEFAULT_LTO_PASS(MemCpyOpt, 0);
// Nuke dead stores.
DEFAULT_LTO_PASS(DeadStoreElimination, 0);
// Cleanup and simplify the code after the scalar optimizations.
DEFAULT_LTO_PASS(InstructionCombining, 0);
DEFAULT_LTO_PASS(JumpThreading, 0);
// Delete basic blocks, which optimization passes may have killed.
DEFAULT_LTO_PASS(CFGSimplification, 0);
// Now that we have optimized the program, discard unreachable functions.
DEFAULT_LTO_PASS(GlobalDCE, 0);
#undef DEFAULT_LTO_PASS
}
};
static RegisterStandardPassLists AutoRegister;
static inline void createStandardAliasAnalysisPasses(PassManagerBase *PM) {
StandardPass::AddPassesFromSet(PM, StandardPass::AliasAnalysis);
}
/// createStandardFunctionPasses - Add the standard list of function passes to
/// the provided pass manager.
///
/// \arg OptimizationLevel - The optimization level, corresponding to -O0,
/// -O1, etc.
static inline void createStandardFunctionPasses(PassManagerBase *PM,
unsigned OptimizationLevel) {
StandardPass::AddPassesFromSet(PM, StandardPass::AliasAnalysis);
StandardPass::AddPassesFromSet(PM, StandardPass::Function, OptimizationLevel);
}
/// createStandardModulePasses - Add the standard list of module passes to the
/// provided pass manager.
///
/// \arg OptimizationLevel - The optimization level, corresponding to -O0,
/// -O1, etc.
/// \arg OptimizeSize - Whether the transformations should optimize for size.
/// \arg UnitAtATime - Allow passes which may make global module changes.
/// \arg UnrollLoops - Allow loop unrolling.
/// \arg SimplifyLibCalls - Allow library calls to be simplified.
/// \arg HaveExceptions - Whether the module may have code using exceptions.
/// \arg InliningPass - The inlining pass to use, if any, or null. This will
/// always be added, even at -O0.
static inline void createStandardModulePasses(PassManagerBase *PM,
unsigned OptimizationLevel,
bool OptimizeSize,
bool UnitAtATime,
bool UnrollLoops,
bool SimplifyLibCalls,
bool HaveExceptions,
Pass *InliningPass) {
createStandardAliasAnalysisPasses(PM);
// If all optimizations are disabled, just run the always-inline pass.
if (OptimizationLevel == 0) {
if (InliningPass)
PM->add(InliningPass);
return;
}
StandardPass::AddPassesFromSet(PM, StandardPass::Module,
StandardPass::OptimzationFlags(OptimizationLevel, 0,
(OptimizeSize ? StandardPass::OptimizeSize : 0) |
(UnitAtATime ? StandardPass::UnitAtATime : 0) |
(UnrollLoops ? StandardPass::UnrollLoops : 0) |
(SimplifyLibCalls ? StandardPass::SimplifyLibCalls : 0) |
(HaveExceptions ? StandardPass::HaveExceptions : 0)),
false,
InliningPass);
}
/// createStandardLTOPasses - Add the standard list of module passes suitable
/// for link time optimization.
///
/// Internalize - Run the internalize pass.
/// RunInliner - Use a function inlining pass.
/// VerifyEach - Run the verifier after each pass.
static inline void createStandardLTOPasses(PassManagerBase *PM,
bool Internalize,
bool RunInliner,
bool VerifyEach) {
// Provide AliasAnalysis services for optimizations.
createStandardAliasAnalysisPasses(PM);
// Now that composite has been compiled, scan through the module, looking
// for a main function. If main is defined, mark all other functions
// internal.
if (Internalize) {
PM->add(createInternalizePass(true));
if (VerifyEach)
PM->add(createVerifierPass());
}
StandardPass::AddPassesFromSet(PM, StandardPass::LTO,
StandardPass::OptimzationFlags(0, 0, RunInliner ?
StandardPass::RunInliner : 0), VerifyEach);
}
}
#endif

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@ -28,7 +28,6 @@ add_llvm_library(LLVMCore
PassManager.cpp
PassRegistry.cpp
PrintModulePass.cpp
StandardPasses.cpp
Type.cpp
TypeSymbolTable.cpp
Use.cpp

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@ -1,247 +0,0 @@
//===-- lib/Support/StandardPasses.cpp - Standard pass lists -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines utility functions for creating a "standard" set of
// optimization passes, so that compilers and tools which use optimization
// passes use the same set of standard passes.
//
// This allows the creation of multiple standard sets, and their later
// modification by plugins and front ends.
//
//===----------------------------------------------------------------------===//
#include "llvm/PassManager.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/DefaultPasses.h"
#include "llvm/Support/Mutex.h"
using namespace llvm::DefaultStandardPasses;
using namespace llvm;
namespace {
/// Entry in the standard passes list.
struct StandardPassEntry {
/// Function called to create the pass
PassInfo::NormalCtor_t createPass;
/// Unique identifier for this pass
unsigned char *passID;
/// Flags specifying when this pass should be run
unsigned flags;
StandardPassEntry(PassInfo::NormalCtor_t constructor, unsigned char *ID,
unsigned f) : createPass(constructor), passID(ID), flags(f) {}
};
/// Standard alias analysis passes
static llvm::SmallVector<StandardPassEntry, 4> AAPasses;
/// Standard function passes
static llvm::SmallVector<StandardPassEntry, 32> FunctionPasses;
/// Standard module passes
static llvm::SmallVector<StandardPassEntry, 32> ModulePasses;
/// Standard link-time optimization passes
static llvm::SmallVector<StandardPassEntry, 32> LTOPasses;
/// Entry in the unresolved standard pass list. IF a pass is inserted in front
/// of a pass that is not yet registered in the standard pass list then it is
/// stored in a separate list and resolved later.
struct UnresolvedStandardPass : public StandardPassEntry {
/// The set into which this is stored
StandardPass::StandardSet set;
/// The unique ID of the pass that should follow this one in the sequence
unsigned char *next;
UnresolvedStandardPass(PassInfo::NormalCtor_t constructor,
unsigned char *newPass,
unsigned char *oldPass,
StandardPass::StandardSet s,
unsigned f) :
StandardPassEntry(constructor, newPass, f), set(s), next(oldPass) {}
};
/// The passes that can not be inserted into the correct lists yet because of
/// their place in the sequence.
static llvm::SmallVector<UnresolvedStandardPass, 16> UnresolvedPasses;
/// Returns a reference to the pass list for the corresponding set of
/// optimisations.
llvm::SmallVectorImpl<StandardPassEntry>&
PassList(StandardPass::StandardSet set) {
switch (set) {
case StandardPass::AliasAnalysis: return AAPasses;
case StandardPass::Function: return FunctionPasses;
case StandardPass::Module: return ModulePasses;
case StandardPass::LTO: return LTOPasses;
}
// We could use a map of standard pass lists to allow definition of new
// default sets
llvm_unreachable("Invalid standard optimization set requested");
}
static ManagedStatic<sys::SmartMutex<true> > Lock;
/// Registers the default set of standard passes. This is called lazily when
/// an attempt is made to read or modify the standard pass list
void RegisterDefaultStandardPasses(void(*doRegister)(void)) {
// Only initialize the standard passes once
static volatile bool initialized = false;
if (initialized) return;
llvm::sys::SmartScopedLock<true> Guard(*Lock);
if (initialized) return;
if (doRegister) {
assert("No passes registered before setting default passes" &&
AAPasses.size() == 0 &&
FunctionPasses.size() == 0 &&
LTOPasses.size() == 0 &&
ModulePasses.size() == 0);
// We must set initialized to true before calling this function, because
// the doRegister() function will probably call RegisterDefaultPasses(),
// which will call this function, and we'd end up with infinite recursion
// and breakage if we didn't.
initialized = true;
doRegister();
}
}
} // Anonymous namespace
void (*StandardPass::RegisterDefaultPasses)(void);
Pass* (*StandardPass::CreateVerifierPass)(void);
void StandardPass::RegisterDefaultPass(PassInfo::NormalCtor_t constructor,
unsigned char *newPass,
unsigned char *oldPass,
StandardPass::StandardSet set,
unsigned flags) {
// Make sure that the standard sets are already regstered
RegisterDefaultStandardPasses(RegisterDefaultPasses);
// Get the correct list to modify
llvm::SmallVectorImpl<StandardPassEntry>& passList = PassList(set);
// If there is no old pass specified, then we are adding a new final pass, so
// just push it onto the end.
if (!oldPass) {
StandardPassEntry pass(constructor, newPass, flags);
passList.push_back(pass);
return;
}
// Find the correct place to insert the pass. This is a linear search, but
// this shouldn't be too slow since the SmallVector will store the values in
// a contiguous block of memory. Each entry is just three words of memory, so
// in most cases we are only going to be looking in one or two cache lines.
// The extra memory accesses from a more complex search structure would
// offset any performance gain (unless someone decides to add an insanely
// large set of standard passes to a set)
for (SmallVectorImpl<StandardPassEntry>::iterator i=passList.begin(),
e=passList.end() ; i!=e ; ++i) {
if (i->passID == oldPass) {
StandardPassEntry pass(constructor, newPass, flags);
passList.insert(i, pass);
// If we've added a new pass, then there may have gained the ability to
// insert one of the previously unresolved ones. If so, insert the new
// one.
for (SmallVectorImpl<UnresolvedStandardPass>::iterator
u=UnresolvedPasses.begin(), eu=UnresolvedPasses.end() ; u!=eu ; ++u){
if (u->next == newPass && u->set == set) {
UnresolvedStandardPass p = *u;
UnresolvedPasses.erase(u);
RegisterDefaultPass(p.createPass, p.passID, p.next, p.set, p.flags);
}
}
return;
}
}
// If we get to here, then we didn't find the correct place to insert the new
// pass
UnresolvedStandardPass pass(constructor, newPass, oldPass, set, flags);
UnresolvedPasses.push_back(pass);
}
void StandardPass::AddPassesFromSet(PassManagerBase *PM,
StandardSet set,
unsigned flags,
bool VerifyEach,
Pass *inliner) {
RegisterDefaultStandardPasses(RegisterDefaultPasses);
unsigned level = OptimizationLevel(flags);
flags = RequiredFlags(flags);
llvm::SmallVectorImpl<StandardPassEntry>& passList = PassList(set);
// Add all of the passes from this set
for (SmallVectorImpl<StandardPassEntry>::iterator i=passList.begin(),
e=passList.end() ; i!=e ; ++i) {
// Skip passes that don't have conditions that match the ones specified
// here. For a pass to match:
// - Its minimum optimisation level must be less than or equal to the
// specified level.
// - Its maximum optimisation level must be greater than or equal to the
// specified level
// - All of its required flags must be set
// - None of its disallowed flags may be set
if ((level >= OptimizationLevel(i->flags)) &&
((level <= MaxOptimizationLevel(i->flags))
|| MaxOptimizationLevel(i->flags) == 0) &&
((RequiredFlags(i->flags) & flags) == RequiredFlags(i->flags)) &&
((DisallowedFlags(i->flags) & flags) == 0)) {
// This is quite an ugly way of allowing us to specify an inliner pass to
// insert. Ideally, we'd replace this with a general mechanism allowing
// callers to replace arbitrary passes in the list.
Pass *p = 0;
if (&InlinerPlaceholderID == i->passID) {
p = inliner;
} else if (i->createPass)
p = i->createPass();
if (p) {
PM->add(p);
if (VerifyEach)
PM->add(CreateVerifierPass());
}
}
}
}
unsigned char DefaultStandardPasses::AggressiveDCEID;
unsigned char DefaultStandardPasses::ArgumentPromotionID;
unsigned char DefaultStandardPasses::BasicAliasAnalysisID;
unsigned char DefaultStandardPasses::CFGSimplificationID;
unsigned char DefaultStandardPasses::ConstantMergeID;
unsigned char DefaultStandardPasses::CorrelatedValuePropagationID;
unsigned char DefaultStandardPasses::DeadArgEliminationID;
unsigned char DefaultStandardPasses::DeadStoreEliminationID;
unsigned char DefaultStandardPasses::DeadTypeEliminationID;
unsigned char DefaultStandardPasses::EarlyCSEID;
unsigned char DefaultStandardPasses::FunctionAttrsID;
unsigned char DefaultStandardPasses::FunctionInliningID;
unsigned char DefaultStandardPasses::GVNID;
unsigned char DefaultStandardPasses::GlobalDCEID;
unsigned char DefaultStandardPasses::GlobalOptimizerID;
unsigned char DefaultStandardPasses::GlobalsModRefID;
unsigned char DefaultStandardPasses::IPSCCPID;
unsigned char DefaultStandardPasses::IndVarSimplifyID;
unsigned char DefaultStandardPasses::InlinerPlaceholderID;
unsigned char DefaultStandardPasses::InstructionCombiningID;
unsigned char DefaultStandardPasses::JumpThreadingID;
unsigned char DefaultStandardPasses::LICMID;
unsigned char DefaultStandardPasses::LoopDeletionID;
unsigned char DefaultStandardPasses::LoopIdiomID;
unsigned char DefaultStandardPasses::LoopRotateID;
unsigned char DefaultStandardPasses::LoopUnrollID;
unsigned char DefaultStandardPasses::LoopUnswitchID;
unsigned char DefaultStandardPasses::MemCpyOptID;
unsigned char DefaultStandardPasses::PruneEHID;
unsigned char DefaultStandardPasses::ReassociateID;
unsigned char DefaultStandardPasses::SCCPID;
unsigned char DefaultStandardPasses::ScalarReplAggregatesID;
unsigned char DefaultStandardPasses::SimplifyLibCallsID;
unsigned char DefaultStandardPasses::StripDeadPrototypesID;
unsigned char DefaultStandardPasses::TailCallEliminationID;
unsigned char DefaultStandardPasses::TypeBasedAliasAnalysisID;