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160b8e07db
It avoids that a pass runs a second time if didn't make any changes in the previous run and no other pass changed the function in between. rdar://problem/20336764 In this change I also removed the CompleteFunctions analysis which is now obsolete. Some measurements with swiftbench (-wmo, single threaded): It reduces the number of pass runs by about 28%. Because only passes are skipped that don't do anything, the effect on compile time is not so dramatic. The time spent in runSILOptimizationPasses is reduced by ~9% which gives a total compile time reduction of about 3%. Swift SVN r26757
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//===----- Analysis.cpp - Swift Analysis ----------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "sil-analysis"
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#include "swift/SILAnalysis/Analysis.h"
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#include "swift/SILAnalysis/DominanceAnalysis.h"
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#include "swift/SILAnalysis/IVAnalysis.h"
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#include "swift/SILAnalysis/PostOrderAnalysis.h"
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#include "swift/SILAnalysis/CallGraphAnalysis.h"
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#include "swift/SILAnalysis/ClassHierarchyAnalysis.h"
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#include "swift/AST/Module.h"
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#include "swift/AST/SILOptions.h"
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#include "swift/SIL/SILModule.h"
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#include "swift/SIL/SILFunction.h"
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#include "llvm/ADT/Statistic.h"
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#include "llvm/Support/Debug.h"
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#include "swift/SILPasses/Utils/Local.h"
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using namespace swift;
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SILAnalysis *swift::createCallGraphAnalysis(SILModule *M) {
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return new CallGraphAnalysis(M);
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}
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SILAnalysis *swift::createDominanceAnalysis(SILModule *) {
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return new DominanceAnalysis();
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}
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SILAnalysis *swift::createPostDominanceAnalysis(SILModule *) {
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return new PostDominanceAnalysis();
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}
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SILAnalysis *swift::createInductionVariableAnalysis(SILModule *M) {
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return new IVAnalysis(M);
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}
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SILAnalysis *swift::createPostOrderAnalysis(SILModule *M) {
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return new PostOrderAnalysis(M);
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}
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SILAnalysis *swift::createClassHierarchyAnalysis(SILModule *M) {
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return new ClassHierarchyAnalysis(M);
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}
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