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1//===- opt.cpp - The LLVM Modular Optimizer -------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Optimizations may be specified an arbitrary number of times on the command
11// line, They are run in the order specified.
12//
13//===----------------------------------------------------------------------===//
14
15#include "llvm/LLVMContext.h"
16#include "llvm/Module.h"
17#include "llvm/PassManager.h"
18#include "llvm/CallGraphSCCPass.h"
19#include "llvm/Bitcode/ReaderWriter.h"
20#include "llvm/Assembly/PrintModulePass.h"
21#include "llvm/Analysis/DebugInfo.h"
22#include "llvm/Analysis/Verifier.h"
23#include "llvm/Analysis/LoopPass.h"
24#include "llvm/Analysis/RegionPass.h"
25#include "llvm/Analysis/CallGraph.h"
26#include "llvm/Target/TargetData.h"
27#include "llvm/Target/TargetLibraryInfo.h"
28#include "llvm/Target/TargetMachine.h"
29#include "llvm/ADT/StringSet.h"
30#include "llvm/ADT/Triple.h"
31#include "llvm/Support/PassNameParser.h"
32#include "llvm/Support/Signals.h"
33#include "llvm/Support/Debug.h"
34#include "llvm/Support/IRReader.h"
35#include "llvm/Support/ManagedStatic.h"
36#include "llvm/Support/PluginLoader.h"
37#include "llvm/Support/PrettyStackTrace.h"
1//===- opt.cpp - The LLVM Modular Optimizer -------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Optimizations may be specified an arbitrary number of times on the command
11// line, They are run in the order specified.
12//
13//===----------------------------------------------------------------------===//
14
15#include "llvm/LLVMContext.h"
16#include "llvm/Module.h"
17#include "llvm/PassManager.h"
18#include "llvm/CallGraphSCCPass.h"
19#include "llvm/Bitcode/ReaderWriter.h"
20#include "llvm/Assembly/PrintModulePass.h"
21#include "llvm/Analysis/DebugInfo.h"
22#include "llvm/Analysis/Verifier.h"
23#include "llvm/Analysis/LoopPass.h"
24#include "llvm/Analysis/RegionPass.h"
25#include "llvm/Analysis/CallGraph.h"
26#include "llvm/Target/TargetData.h"
27#include "llvm/Target/TargetLibraryInfo.h"
28#include "llvm/Target/TargetMachine.h"
29#include "llvm/ADT/StringSet.h"
30#include "llvm/ADT/Triple.h"
31#include "llvm/Support/PassNameParser.h"
32#include "llvm/Support/Signals.h"
33#include "llvm/Support/Debug.h"
34#include "llvm/Support/IRReader.h"
35#include "llvm/Support/ManagedStatic.h"
36#include "llvm/Support/PluginLoader.h"
37#include "llvm/Support/PrettyStackTrace.h"
38#include "llvm/Support/PassManagerBuilder.h"
39#include "llvm/Support/SystemUtils.h"
40#include "llvm/Support/ToolOutputFile.h"
41#include "llvm/LinkAllPasses.h"
42#include "llvm/LinkAllVMCore.h"
38#include "llvm/Support/SystemUtils.h"
39#include "llvm/Support/ToolOutputFile.h"
40#include "llvm/LinkAllPasses.h"
41#include "llvm/LinkAllVMCore.h"
42#include "llvm/Transforms/IPO/PassManagerBuilder.h"
43#include <memory>
44#include <algorithm>
45using namespace llvm;
46
47// The OptimizationList is automatically populated with registered Passes by the
48// PassNameParser.
49//
50static cl::list<const PassInfo*, bool, PassNameParser>
51PassList(cl::desc("Optimizations available:"));
52
53// Other command line options...
54//
55static cl::opt<std::string>
56InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
57 cl::init("-"), cl::value_desc("filename"));
58
59static cl::opt<std::string>
60OutputFilename("o", cl::desc("Override output filename"),
61 cl::value_desc("filename"));
62
63static cl::opt<bool>
64Force("f", cl::desc("Enable binary output on terminals"));
65
66static cl::opt<bool>
67PrintEachXForm("p", cl::desc("Print module after each transformation"));
68
69static cl::opt<bool>
70NoOutput("disable-output",
71 cl::desc("Do not write result bitcode file"), cl::Hidden);
72
73static cl::opt<bool>
74OutputAssembly("S", cl::desc("Write output as LLVM assembly"));
75
76static cl::opt<bool>
77NoVerify("disable-verify", cl::desc("Do not verify result module"), cl::Hidden);
78
79static cl::opt<bool>
80VerifyEach("verify-each", cl::desc("Verify after each transform"));
81
82static cl::opt<bool>
83StripDebug("strip-debug",
84 cl::desc("Strip debugger symbol info from translation unit"));
85
86static cl::opt<bool>
87DisableInline("disable-inlining", cl::desc("Do not run the inliner pass"));
88
89static cl::opt<bool>
90DisableOptimizations("disable-opt",
91 cl::desc("Do not run any optimization passes"));
92
93static cl::opt<bool>
94DisableInternalize("disable-internalize",
95 cl::desc("Do not mark all symbols as internal"));
96
97static cl::opt<bool>
98StandardCompileOpts("std-compile-opts",
99 cl::desc("Include the standard compile time optimizations"));
100
101static cl::opt<bool>
102StandardLinkOpts("std-link-opts",
103 cl::desc("Include the standard link time optimizations"));
104
105static cl::opt<bool>
106OptLevelO1("O1",
107 cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
108
109static cl::opt<bool>
110OptLevelO2("O2",
111 cl::desc("Optimization level 2. Similar to llvm-gcc -O2"));
112
113static cl::opt<bool>
114OptLevelO3("O3",
115 cl::desc("Optimization level 3. Similar to llvm-gcc -O3"));
116
117static cl::opt<bool>
118UnitAtATime("funit-at-a-time",
119 cl::desc("Enable IPO. This is same as llvm-gcc's -funit-at-a-time"),
120 cl::init(true));
121
122static cl::opt<bool>
123DisableSimplifyLibCalls("disable-simplify-libcalls",
124 cl::desc("Disable simplify-libcalls"));
125
126static cl::opt<bool>
127Quiet("q", cl::desc("Obsolete option"), cl::Hidden);
128
129static cl::alias
130QuietA("quiet", cl::desc("Alias for -q"), cl::aliasopt(Quiet));
131
132static cl::opt<bool>
133AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
134
135static cl::opt<bool>
136PrintBreakpoints("print-breakpoints-for-testing",
137 cl::desc("Print select breakpoints location for testing"));
138
139static cl::opt<std::string>
140DefaultDataLayout("default-data-layout",
141 cl::desc("data layout string to use if not specified by module"),
142 cl::value_desc("layout-string"), cl::init(""));
143
144// ---------- Define Printers for module and function passes ------------
145namespace {
146
147struct CallGraphSCCPassPrinter : public CallGraphSCCPass {
148 static char ID;
149 const PassInfo *PassToPrint;
150 raw_ostream &Out;
151 std::string PassName;
152
153 CallGraphSCCPassPrinter(const PassInfo *PI, raw_ostream &out) :
154 CallGraphSCCPass(ID), PassToPrint(PI), Out(out) {
155 std::string PassToPrintName = PassToPrint->getPassName();
156 PassName = "CallGraphSCCPass Printer: " + PassToPrintName;
157 }
158
159 virtual bool runOnSCC(CallGraphSCC &SCC) {
160 if (!Quiet)
161 Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
162
163 // Get and print pass...
164 for (CallGraphSCC::iterator I = SCC.begin(), E = SCC.end(); I != E; ++I) {
165 Function *F = (*I)->getFunction();
166 if (F)
167 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
168 F->getParent());
169 }
170 return false;
171 }
172
173 virtual const char *getPassName() const { return PassName.c_str(); }
174
175 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
176 AU.addRequiredID(PassToPrint->getTypeInfo());
177 AU.setPreservesAll();
178 }
179};
180
181char CallGraphSCCPassPrinter::ID = 0;
182
183struct ModulePassPrinter : public ModulePass {
184 static char ID;
185 const PassInfo *PassToPrint;
186 raw_ostream &Out;
187 std::string PassName;
188
189 ModulePassPrinter(const PassInfo *PI, raw_ostream &out)
190 : ModulePass(ID), PassToPrint(PI), Out(out) {
191 std::string PassToPrintName = PassToPrint->getPassName();
192 PassName = "ModulePass Printer: " + PassToPrintName;
193 }
194
195 virtual bool runOnModule(Module &M) {
196 if (!Quiet)
197 Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
198
199 // Get and print pass...
200 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out, &M);
201 return false;
202 }
203
204 virtual const char *getPassName() const { return PassName.c_str(); }
205
206 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
207 AU.addRequiredID(PassToPrint->getTypeInfo());
208 AU.setPreservesAll();
209 }
210};
211
212char ModulePassPrinter::ID = 0;
213struct FunctionPassPrinter : public FunctionPass {
214 const PassInfo *PassToPrint;
215 raw_ostream &Out;
216 static char ID;
217 std::string PassName;
218
219 FunctionPassPrinter(const PassInfo *PI, raw_ostream &out)
220 : FunctionPass(ID), PassToPrint(PI), Out(out) {
221 std::string PassToPrintName = PassToPrint->getPassName();
222 PassName = "FunctionPass Printer: " + PassToPrintName;
223 }
224
225 virtual bool runOnFunction(Function &F) {
226 if (!Quiet)
227 Out << "Printing analysis '" << PassToPrint->getPassName()
228 << "' for function '" << F.getName() << "':\n";
229
230 // Get and print pass...
231 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
232 F.getParent());
233 return false;
234 }
235
236 virtual const char *getPassName() const { return PassName.c_str(); }
237
238 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
239 AU.addRequiredID(PassToPrint->getTypeInfo());
240 AU.setPreservesAll();
241 }
242};
243
244char FunctionPassPrinter::ID = 0;
245
246struct LoopPassPrinter : public LoopPass {
247 static char ID;
248 const PassInfo *PassToPrint;
249 raw_ostream &Out;
250 std::string PassName;
251
252 LoopPassPrinter(const PassInfo *PI, raw_ostream &out) :
253 LoopPass(ID), PassToPrint(PI), Out(out) {
254 std::string PassToPrintName = PassToPrint->getPassName();
255 PassName = "LoopPass Printer: " + PassToPrintName;
256 }
257
258
259 virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
260 if (!Quiet)
261 Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
262
263 // Get and print pass...
264 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
265 L->getHeader()->getParent()->getParent());
266 return false;
267 }
268
269 virtual const char *getPassName() const { return PassName.c_str(); }
270
271 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
272 AU.addRequiredID(PassToPrint->getTypeInfo());
273 AU.setPreservesAll();
274 }
275};
276
277char LoopPassPrinter::ID = 0;
278
279struct RegionPassPrinter : public RegionPass {
280 static char ID;
281 const PassInfo *PassToPrint;
282 raw_ostream &Out;
283 std::string PassName;
284
285 RegionPassPrinter(const PassInfo *PI, raw_ostream &out) : RegionPass(ID),
286 PassToPrint(PI), Out(out) {
287 std::string PassToPrintName = PassToPrint->getPassName();
288 PassName = "RegionPass Printer: " + PassToPrintName;
289 }
290
291 virtual bool runOnRegion(Region *R, RGPassManager &RGM) {
292 if (!Quiet) {
293 Out << "Printing analysis '" << PassToPrint->getPassName() << "' for "
294 << "region: '" << R->getNameStr() << "' in function '"
295 << R->getEntry()->getParent()->getNameStr() << "':\n";
296 }
297 // Get and print pass...
298 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
299 R->getEntry()->getParent()->getParent());
300 return false;
301 }
302
303 virtual const char *getPassName() const { return PassName.c_str(); }
304
305 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
306 AU.addRequiredID(PassToPrint->getTypeInfo());
307 AU.setPreservesAll();
308 }
309};
310
311char RegionPassPrinter::ID = 0;
312
313struct BasicBlockPassPrinter : public BasicBlockPass {
314 const PassInfo *PassToPrint;
315 raw_ostream &Out;
316 static char ID;
317 std::string PassName;
318
319 BasicBlockPassPrinter(const PassInfo *PI, raw_ostream &out)
320 : BasicBlockPass(ID), PassToPrint(PI), Out(out) {
321 std::string PassToPrintName = PassToPrint->getPassName();
322 PassName = "BasicBlockPass Printer: " + PassToPrintName;
323 }
324
325 virtual bool runOnBasicBlock(BasicBlock &BB) {
326 if (!Quiet)
327 Out << "Printing Analysis info for BasicBlock '" << BB.getName()
328 << "': Pass " << PassToPrint->getPassName() << ":\n";
329
330 // Get and print pass...
331 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
332 BB.getParent()->getParent());
333 return false;
334 }
335
336 virtual const char *getPassName() const { return PassName.c_str(); }
337
338 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
339 AU.addRequiredID(PassToPrint->getTypeInfo());
340 AU.setPreservesAll();
341 }
342};
343
344char BasicBlockPassPrinter::ID = 0;
345
346struct BreakpointPrinter : public ModulePass {
347 raw_ostream &Out;
348 static char ID;
349
350 BreakpointPrinter(raw_ostream &out)
351 : ModulePass(ID), Out(out) {
352 }
353
354 void getContextName(DIDescriptor Context, std::string &N) {
355 if (Context.isNameSpace()) {
356 DINameSpace NS(Context);
357 if (!NS.getName().empty()) {
358 getContextName(NS.getContext(), N);
359 N = N + NS.getName().str() + "::";
360 }
361 } else if (Context.isType()) {
362 DIType TY(Context);
363 if (!TY.getName().empty()) {
364 getContextName(TY.getContext(), N);
365 N = N + TY.getName().str() + "::";
366 }
367 }
368 }
369
370 virtual bool runOnModule(Module &M) {
371 StringSet<> Processed;
372 if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
373 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
374 std::string Name;
375 DISubprogram SP(NMD->getOperand(i));
376 if (SP.Verify())
377 getContextName(SP.getContext(), Name);
378 Name = Name + SP.getDisplayName().str();
379 if (!Name.empty() && Processed.insert(Name)) {
380 Out << Name << "\n";
381 }
382 }
383 return false;
384 }
385
386 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
387 AU.setPreservesAll();
388 }
389};
390
391} // anonymous namespace
392
393char BreakpointPrinter::ID = 0;
394
395static inline void addPass(PassManagerBase &PM, Pass *P) {
396 // Add the pass to the pass manager...
397 PM.add(P);
398
399 // If we are verifying all of the intermediate steps, add the verifier...
400 if (VerifyEach) PM.add(createVerifierPass());
401}
402
403/// AddOptimizationPasses - This routine adds optimization passes
404/// based on selected optimization level, OptLevel. This routine
405/// duplicates llvm-gcc behaviour.
406///
407/// OptLevel - Optimization Level
408static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
409 unsigned OptLevel) {
410 PassManagerBuilder Builder;
411 Builder.OptLevel = OptLevel;
412
413 if (DisableInline) {
414 // No inlining pass
415 } else if (OptLevel > 1) {
416 unsigned Threshold = 225;
417 if (OptLevel > 2)
418 Threshold = 275;
419 Builder.Inliner = createFunctionInliningPass(Threshold);
420 } else {
421 Builder.Inliner = createAlwaysInlinerPass();
422 }
423 Builder.DisableUnitAtATime = !UnitAtATime;
424 Builder.DisableUnrollLoops = OptLevel == 0;
425 Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
426
427 Builder.populateFunctionPassManager(FPM);
428 Builder.populateModulePassManager(MPM);
429}
430
431static void AddStandardCompilePasses(PassManagerBase &PM) {
432 PM.add(createVerifierPass()); // Verify that input is correct
433
43#include <memory>
44#include <algorithm>
45using namespace llvm;
46
47// The OptimizationList is automatically populated with registered Passes by the
48// PassNameParser.
49//
50static cl::list<const PassInfo*, bool, PassNameParser>
51PassList(cl::desc("Optimizations available:"));
52
53// Other command line options...
54//
55static cl::opt<std::string>
56InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
57 cl::init("-"), cl::value_desc("filename"));
58
59static cl::opt<std::string>
60OutputFilename("o", cl::desc("Override output filename"),
61 cl::value_desc("filename"));
62
63static cl::opt<bool>
64Force("f", cl::desc("Enable binary output on terminals"));
65
66static cl::opt<bool>
67PrintEachXForm("p", cl::desc("Print module after each transformation"));
68
69static cl::opt<bool>
70NoOutput("disable-output",
71 cl::desc("Do not write result bitcode file"), cl::Hidden);
72
73static cl::opt<bool>
74OutputAssembly("S", cl::desc("Write output as LLVM assembly"));
75
76static cl::opt<bool>
77NoVerify("disable-verify", cl::desc("Do not verify result module"), cl::Hidden);
78
79static cl::opt<bool>
80VerifyEach("verify-each", cl::desc("Verify after each transform"));
81
82static cl::opt<bool>
83StripDebug("strip-debug",
84 cl::desc("Strip debugger symbol info from translation unit"));
85
86static cl::opt<bool>
87DisableInline("disable-inlining", cl::desc("Do not run the inliner pass"));
88
89static cl::opt<bool>
90DisableOptimizations("disable-opt",
91 cl::desc("Do not run any optimization passes"));
92
93static cl::opt<bool>
94DisableInternalize("disable-internalize",
95 cl::desc("Do not mark all symbols as internal"));
96
97static cl::opt<bool>
98StandardCompileOpts("std-compile-opts",
99 cl::desc("Include the standard compile time optimizations"));
100
101static cl::opt<bool>
102StandardLinkOpts("std-link-opts",
103 cl::desc("Include the standard link time optimizations"));
104
105static cl::opt<bool>
106OptLevelO1("O1",
107 cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
108
109static cl::opt<bool>
110OptLevelO2("O2",
111 cl::desc("Optimization level 2. Similar to llvm-gcc -O2"));
112
113static cl::opt<bool>
114OptLevelO3("O3",
115 cl::desc("Optimization level 3. Similar to llvm-gcc -O3"));
116
117static cl::opt<bool>
118UnitAtATime("funit-at-a-time",
119 cl::desc("Enable IPO. This is same as llvm-gcc's -funit-at-a-time"),
120 cl::init(true));
121
122static cl::opt<bool>
123DisableSimplifyLibCalls("disable-simplify-libcalls",
124 cl::desc("Disable simplify-libcalls"));
125
126static cl::opt<bool>
127Quiet("q", cl::desc("Obsolete option"), cl::Hidden);
128
129static cl::alias
130QuietA("quiet", cl::desc("Alias for -q"), cl::aliasopt(Quiet));
131
132static cl::opt<bool>
133AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
134
135static cl::opt<bool>
136PrintBreakpoints("print-breakpoints-for-testing",
137 cl::desc("Print select breakpoints location for testing"));
138
139static cl::opt<std::string>
140DefaultDataLayout("default-data-layout",
141 cl::desc("data layout string to use if not specified by module"),
142 cl::value_desc("layout-string"), cl::init(""));
143
144// ---------- Define Printers for module and function passes ------------
145namespace {
146
147struct CallGraphSCCPassPrinter : public CallGraphSCCPass {
148 static char ID;
149 const PassInfo *PassToPrint;
150 raw_ostream &Out;
151 std::string PassName;
152
153 CallGraphSCCPassPrinter(const PassInfo *PI, raw_ostream &out) :
154 CallGraphSCCPass(ID), PassToPrint(PI), Out(out) {
155 std::string PassToPrintName = PassToPrint->getPassName();
156 PassName = "CallGraphSCCPass Printer: " + PassToPrintName;
157 }
158
159 virtual bool runOnSCC(CallGraphSCC &SCC) {
160 if (!Quiet)
161 Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
162
163 // Get and print pass...
164 for (CallGraphSCC::iterator I = SCC.begin(), E = SCC.end(); I != E; ++I) {
165 Function *F = (*I)->getFunction();
166 if (F)
167 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
168 F->getParent());
169 }
170 return false;
171 }
172
173 virtual const char *getPassName() const { return PassName.c_str(); }
174
175 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
176 AU.addRequiredID(PassToPrint->getTypeInfo());
177 AU.setPreservesAll();
178 }
179};
180
181char CallGraphSCCPassPrinter::ID = 0;
182
183struct ModulePassPrinter : public ModulePass {
184 static char ID;
185 const PassInfo *PassToPrint;
186 raw_ostream &Out;
187 std::string PassName;
188
189 ModulePassPrinter(const PassInfo *PI, raw_ostream &out)
190 : ModulePass(ID), PassToPrint(PI), Out(out) {
191 std::string PassToPrintName = PassToPrint->getPassName();
192 PassName = "ModulePass Printer: " + PassToPrintName;
193 }
194
195 virtual bool runOnModule(Module &M) {
196 if (!Quiet)
197 Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
198
199 // Get and print pass...
200 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out, &M);
201 return false;
202 }
203
204 virtual const char *getPassName() const { return PassName.c_str(); }
205
206 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
207 AU.addRequiredID(PassToPrint->getTypeInfo());
208 AU.setPreservesAll();
209 }
210};
211
212char ModulePassPrinter::ID = 0;
213struct FunctionPassPrinter : public FunctionPass {
214 const PassInfo *PassToPrint;
215 raw_ostream &Out;
216 static char ID;
217 std::string PassName;
218
219 FunctionPassPrinter(const PassInfo *PI, raw_ostream &out)
220 : FunctionPass(ID), PassToPrint(PI), Out(out) {
221 std::string PassToPrintName = PassToPrint->getPassName();
222 PassName = "FunctionPass Printer: " + PassToPrintName;
223 }
224
225 virtual bool runOnFunction(Function &F) {
226 if (!Quiet)
227 Out << "Printing analysis '" << PassToPrint->getPassName()
228 << "' for function '" << F.getName() << "':\n";
229
230 // Get and print pass...
231 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
232 F.getParent());
233 return false;
234 }
235
236 virtual const char *getPassName() const { return PassName.c_str(); }
237
238 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
239 AU.addRequiredID(PassToPrint->getTypeInfo());
240 AU.setPreservesAll();
241 }
242};
243
244char FunctionPassPrinter::ID = 0;
245
246struct LoopPassPrinter : public LoopPass {
247 static char ID;
248 const PassInfo *PassToPrint;
249 raw_ostream &Out;
250 std::string PassName;
251
252 LoopPassPrinter(const PassInfo *PI, raw_ostream &out) :
253 LoopPass(ID), PassToPrint(PI), Out(out) {
254 std::string PassToPrintName = PassToPrint->getPassName();
255 PassName = "LoopPass Printer: " + PassToPrintName;
256 }
257
258
259 virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
260 if (!Quiet)
261 Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
262
263 // Get and print pass...
264 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
265 L->getHeader()->getParent()->getParent());
266 return false;
267 }
268
269 virtual const char *getPassName() const { return PassName.c_str(); }
270
271 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
272 AU.addRequiredID(PassToPrint->getTypeInfo());
273 AU.setPreservesAll();
274 }
275};
276
277char LoopPassPrinter::ID = 0;
278
279struct RegionPassPrinter : public RegionPass {
280 static char ID;
281 const PassInfo *PassToPrint;
282 raw_ostream &Out;
283 std::string PassName;
284
285 RegionPassPrinter(const PassInfo *PI, raw_ostream &out) : RegionPass(ID),
286 PassToPrint(PI), Out(out) {
287 std::string PassToPrintName = PassToPrint->getPassName();
288 PassName = "RegionPass Printer: " + PassToPrintName;
289 }
290
291 virtual bool runOnRegion(Region *R, RGPassManager &RGM) {
292 if (!Quiet) {
293 Out << "Printing analysis '" << PassToPrint->getPassName() << "' for "
294 << "region: '" << R->getNameStr() << "' in function '"
295 << R->getEntry()->getParent()->getNameStr() << "':\n";
296 }
297 // Get and print pass...
298 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
299 R->getEntry()->getParent()->getParent());
300 return false;
301 }
302
303 virtual const char *getPassName() const { return PassName.c_str(); }
304
305 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
306 AU.addRequiredID(PassToPrint->getTypeInfo());
307 AU.setPreservesAll();
308 }
309};
310
311char RegionPassPrinter::ID = 0;
312
313struct BasicBlockPassPrinter : public BasicBlockPass {
314 const PassInfo *PassToPrint;
315 raw_ostream &Out;
316 static char ID;
317 std::string PassName;
318
319 BasicBlockPassPrinter(const PassInfo *PI, raw_ostream &out)
320 : BasicBlockPass(ID), PassToPrint(PI), Out(out) {
321 std::string PassToPrintName = PassToPrint->getPassName();
322 PassName = "BasicBlockPass Printer: " + PassToPrintName;
323 }
324
325 virtual bool runOnBasicBlock(BasicBlock &BB) {
326 if (!Quiet)
327 Out << "Printing Analysis info for BasicBlock '" << BB.getName()
328 << "': Pass " << PassToPrint->getPassName() << ":\n";
329
330 // Get and print pass...
331 getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
332 BB.getParent()->getParent());
333 return false;
334 }
335
336 virtual const char *getPassName() const { return PassName.c_str(); }
337
338 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
339 AU.addRequiredID(PassToPrint->getTypeInfo());
340 AU.setPreservesAll();
341 }
342};
343
344char BasicBlockPassPrinter::ID = 0;
345
346struct BreakpointPrinter : public ModulePass {
347 raw_ostream &Out;
348 static char ID;
349
350 BreakpointPrinter(raw_ostream &out)
351 : ModulePass(ID), Out(out) {
352 }
353
354 void getContextName(DIDescriptor Context, std::string &N) {
355 if (Context.isNameSpace()) {
356 DINameSpace NS(Context);
357 if (!NS.getName().empty()) {
358 getContextName(NS.getContext(), N);
359 N = N + NS.getName().str() + "::";
360 }
361 } else if (Context.isType()) {
362 DIType TY(Context);
363 if (!TY.getName().empty()) {
364 getContextName(TY.getContext(), N);
365 N = N + TY.getName().str() + "::";
366 }
367 }
368 }
369
370 virtual bool runOnModule(Module &M) {
371 StringSet<> Processed;
372 if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
373 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
374 std::string Name;
375 DISubprogram SP(NMD->getOperand(i));
376 if (SP.Verify())
377 getContextName(SP.getContext(), Name);
378 Name = Name + SP.getDisplayName().str();
379 if (!Name.empty() && Processed.insert(Name)) {
380 Out << Name << "\n";
381 }
382 }
383 return false;
384 }
385
386 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
387 AU.setPreservesAll();
388 }
389};
390
391} // anonymous namespace
392
393char BreakpointPrinter::ID = 0;
394
395static inline void addPass(PassManagerBase &PM, Pass *P) {
396 // Add the pass to the pass manager...
397 PM.add(P);
398
399 // If we are verifying all of the intermediate steps, add the verifier...
400 if (VerifyEach) PM.add(createVerifierPass());
401}
402
403/// AddOptimizationPasses - This routine adds optimization passes
404/// based on selected optimization level, OptLevel. This routine
405/// duplicates llvm-gcc behaviour.
406///
407/// OptLevel - Optimization Level
408static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
409 unsigned OptLevel) {
410 PassManagerBuilder Builder;
411 Builder.OptLevel = OptLevel;
412
413 if (DisableInline) {
414 // No inlining pass
415 } else if (OptLevel > 1) {
416 unsigned Threshold = 225;
417 if (OptLevel > 2)
418 Threshold = 275;
419 Builder.Inliner = createFunctionInliningPass(Threshold);
420 } else {
421 Builder.Inliner = createAlwaysInlinerPass();
422 }
423 Builder.DisableUnitAtATime = !UnitAtATime;
424 Builder.DisableUnrollLoops = OptLevel == 0;
425 Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
426
427 Builder.populateFunctionPassManager(FPM);
428 Builder.populateModulePassManager(MPM);
429}
430
431static void AddStandardCompilePasses(PassManagerBase &PM) {
432 PM.add(createVerifierPass()); // Verify that input is correct
433
434 addPass(PM, createLowerSetJmpPass()); // Lower llvm.setjmp/.longjmp
435
436 // If the -strip-debug command line option was specified, do it.
437 if (StripDebug)
438 addPass(PM, createStripSymbolsPass(true));
439
440 if (DisableOptimizations) return;
441
442 // -std-compile-opts adds the same module passes as -O3.
443 PassManagerBuilder Builder;
444 if (!DisableInline)
445 Builder.Inliner = createFunctionInliningPass();
446 Builder.OptLevel = 3;
447 Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
448 Builder.populateModulePassManager(PM);
449}
450
451static void AddStandardLinkPasses(PassManagerBase &PM) {
452 PM.add(createVerifierPass()); // Verify that input is correct
453
454 // If the -strip-debug command line option was specified, do it.
455 if (StripDebug)
456 addPass(PM, createStripSymbolsPass(true));
457
458 if (DisableOptimizations) return;
459
460 PassManagerBuilder Builder;
461 Builder.populateLTOPassManager(PM, /*Internalize=*/ !DisableInternalize,
462 /*RunInliner=*/ !DisableInline);
463}
464
465
466//===----------------------------------------------------------------------===//
467// main for opt
468//
469int main(int argc, char **argv) {
470 sys::PrintStackTraceOnErrorSignal();
471 llvm::PrettyStackTraceProgram X(argc, argv);
472
473 // Enable debug stream buffering.
474 EnableDebugBuffering = true;
475
476 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
477 LLVMContext &Context = getGlobalContext();
478
479 // Initialize passes
480 PassRegistry &Registry = *PassRegistry::getPassRegistry();
481 initializeCore(Registry);
482 initializeScalarOpts(Registry);
483 initializeIPO(Registry);
484 initializeAnalysis(Registry);
485 initializeIPA(Registry);
486 initializeTransformUtils(Registry);
487 initializeInstCombine(Registry);
488 initializeInstrumentation(Registry);
489 initializeTarget(Registry);
490
491 cl::ParseCommandLineOptions(argc, argv,
492 "llvm .bc -> .bc modular optimizer and analysis printer\n");
493
494 if (AnalyzeOnly && NoOutput) {
495 errs() << argv[0] << ": analyze mode conflicts with no-output mode.\n";
496 return 1;
497 }
498
499 // Allocate a full target machine description only if necessary.
500 // FIXME: The choice of target should be controllable on the command line.
501 std::auto_ptr<TargetMachine> target;
502
503 SMDiagnostic Err;
504
505 // Load the input module...
506 std::auto_ptr<Module> M;
507 M.reset(ParseIRFile(InputFilename, Err, Context));
508
509 if (M.get() == 0) {
510 Err.Print(argv[0], errs());
511 return 1;
512 }
513
514 // Figure out what stream we are supposed to write to...
515 OwningPtr<tool_output_file> Out;
516 if (NoOutput) {
517 if (!OutputFilename.empty())
518 errs() << "WARNING: The -o (output filename) option is ignored when\n"
519 "the --disable-output option is used.\n";
520 } else {
521 // Default to standard output.
522 if (OutputFilename.empty())
523 OutputFilename = "-";
524
525 std::string ErrorInfo;
526 Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
527 raw_fd_ostream::F_Binary));
528 if (!ErrorInfo.empty()) {
529 errs() << ErrorInfo << '\n';
530 return 1;
531 }
532 }
533
534 // If the output is set to be emitted to standard out, and standard out is a
535 // console, print out a warning message and refuse to do it. We don't
536 // impress anyone by spewing tons of binary goo to a terminal.
537 if (!Force && !NoOutput && !AnalyzeOnly && !OutputAssembly)
538 if (CheckBitcodeOutputToConsole(Out->os(), !Quiet))
539 NoOutput = true;
540
541 // Create a PassManager to hold and optimize the collection of passes we are
542 // about to build.
543 //
544 PassManager Passes;
545
546 // Add an appropriate TargetLibraryInfo pass for the module's triple.
547 TargetLibraryInfo *TLI = new TargetLibraryInfo(Triple(M->getTargetTriple()));
548
549 // The -disable-simplify-libcalls flag actually disables all builtin optzns.
550 if (DisableSimplifyLibCalls)
551 TLI->disableAllFunctions();
552 Passes.add(TLI);
553
554 // Add an appropriate TargetData instance for this module.
555 TargetData *TD = 0;
556 const std::string &ModuleDataLayout = M.get()->getDataLayout();
557 if (!ModuleDataLayout.empty())
558 TD = new TargetData(ModuleDataLayout);
559 else if (!DefaultDataLayout.empty())
560 TD = new TargetData(DefaultDataLayout);
561
562 if (TD)
563 Passes.add(TD);
564
565 OwningPtr<FunctionPassManager> FPasses;
566 if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
567 FPasses.reset(new FunctionPassManager(M.get()));
568 if (TD)
569 FPasses->add(new TargetData(*TD));
570 }
571
572 if (PrintBreakpoints) {
573 // Default to standard output.
574 if (!Out) {
575 if (OutputFilename.empty())
576 OutputFilename = "-";
577
578 std::string ErrorInfo;
579 Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
580 raw_fd_ostream::F_Binary));
581 if (!ErrorInfo.empty()) {
582 errs() << ErrorInfo << '\n';
583 return 1;
584 }
585 }
586 Passes.add(new BreakpointPrinter(Out->os()));
587 NoOutput = true;
588 }
589
590 // If the -strip-debug command line option was specified, add it. If
591 // -std-compile-opts was also specified, it will handle StripDebug.
592 if (StripDebug && !StandardCompileOpts)
593 addPass(Passes, createStripSymbolsPass(true));
594
595 // Create a new optimization pass for each one specified on the command line
596 for (unsigned i = 0; i < PassList.size(); ++i) {
597 // Check to see if -std-compile-opts was specified before this option. If
598 // so, handle it.
599 if (StandardCompileOpts &&
600 StandardCompileOpts.getPosition() < PassList.getPosition(i)) {
601 AddStandardCompilePasses(Passes);
602 StandardCompileOpts = false;
603 }
604
605 if (StandardLinkOpts &&
606 StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
607 AddStandardLinkPasses(Passes);
608 StandardLinkOpts = false;
609 }
610
611 if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
612 AddOptimizationPasses(Passes, *FPasses, 1);
613 OptLevelO1 = false;
614 }
615
616 if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
617 AddOptimizationPasses(Passes, *FPasses, 2);
618 OptLevelO2 = false;
619 }
620
621 if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
622 AddOptimizationPasses(Passes, *FPasses, 3);
623 OptLevelO3 = false;
624 }
625
626 const PassInfo *PassInf = PassList[i];
627 Pass *P = 0;
628 if (PassInf->getNormalCtor())
629 P = PassInf->getNormalCtor()();
630 else
631 errs() << argv[0] << ": cannot create pass: "
632 << PassInf->getPassName() << "\n";
633 if (P) {
634 PassKind Kind = P->getPassKind();
635 addPass(Passes, P);
636
637 if (AnalyzeOnly) {
638 switch (Kind) {
639 case PT_BasicBlock:
640 Passes.add(new BasicBlockPassPrinter(PassInf, Out->os()));
641 break;
642 case PT_Region:
643 Passes.add(new RegionPassPrinter(PassInf, Out->os()));
644 break;
645 case PT_Loop:
646 Passes.add(new LoopPassPrinter(PassInf, Out->os()));
647 break;
648 case PT_Function:
649 Passes.add(new FunctionPassPrinter(PassInf, Out->os()));
650 break;
651 case PT_CallGraphSCC:
652 Passes.add(new CallGraphSCCPassPrinter(PassInf, Out->os()));
653 break;
654 default:
655 Passes.add(new ModulePassPrinter(PassInf, Out->os()));
656 break;
657 }
658 }
659 }
660
661 if (PrintEachXForm)
662 Passes.add(createPrintModulePass(&errs()));
663 }
664
665 // If -std-compile-opts was specified at the end of the pass list, add them.
666 if (StandardCompileOpts) {
667 AddStandardCompilePasses(Passes);
668 StandardCompileOpts = false;
669 }
670
671 if (StandardLinkOpts) {
672 AddStandardLinkPasses(Passes);
673 StandardLinkOpts = false;
674 }
675
676 if (OptLevelO1)
677 AddOptimizationPasses(Passes, *FPasses, 1);
678
679 if (OptLevelO2)
680 AddOptimizationPasses(Passes, *FPasses, 2);
681
682 if (OptLevelO3)
683 AddOptimizationPasses(Passes, *FPasses, 3);
684
685 if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
686 FPasses->doInitialization();
687 for (Module::iterator F = M->begin(), E = M->end(); F != E; ++F)
688 FPasses->run(*F);
689 FPasses->doFinalization();
690 }
691
692 // Check that the module is well formed on completion of optimization
693 if (!NoVerify && !VerifyEach)
694 Passes.add(createVerifierPass());
695
696 // Write bitcode or assembly to the output as the last step...
697 if (!NoOutput && !AnalyzeOnly) {
698 if (OutputAssembly)
699 Passes.add(createPrintModulePass(&Out->os()));
700 else
701 Passes.add(createBitcodeWriterPass(Out->os()));
702 }
703
704 // Before executing passes, print the final values of the LLVM options.
705 cl::PrintOptionValues();
706
707 // Now that we have all of the passes ready, run them.
708 Passes.run(*M.get());
709
710 // Declare success.
711 if (!NoOutput || PrintBreakpoints)
712 Out->keep();
713
714 return 0;
715}
434 // If the -strip-debug command line option was specified, do it.
435 if (StripDebug)
436 addPass(PM, createStripSymbolsPass(true));
437
438 if (DisableOptimizations) return;
439
440 // -std-compile-opts adds the same module passes as -O3.
441 PassManagerBuilder Builder;
442 if (!DisableInline)
443 Builder.Inliner = createFunctionInliningPass();
444 Builder.OptLevel = 3;
445 Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
446 Builder.populateModulePassManager(PM);
447}
448
449static void AddStandardLinkPasses(PassManagerBase &PM) {
450 PM.add(createVerifierPass()); // Verify that input is correct
451
452 // If the -strip-debug command line option was specified, do it.
453 if (StripDebug)
454 addPass(PM, createStripSymbolsPass(true));
455
456 if (DisableOptimizations) return;
457
458 PassManagerBuilder Builder;
459 Builder.populateLTOPassManager(PM, /*Internalize=*/ !DisableInternalize,
460 /*RunInliner=*/ !DisableInline);
461}
462
463
464//===----------------------------------------------------------------------===//
465// main for opt
466//
467int main(int argc, char **argv) {
468 sys::PrintStackTraceOnErrorSignal();
469 llvm::PrettyStackTraceProgram X(argc, argv);
470
471 // Enable debug stream buffering.
472 EnableDebugBuffering = true;
473
474 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
475 LLVMContext &Context = getGlobalContext();
476
477 // Initialize passes
478 PassRegistry &Registry = *PassRegistry::getPassRegistry();
479 initializeCore(Registry);
480 initializeScalarOpts(Registry);
481 initializeIPO(Registry);
482 initializeAnalysis(Registry);
483 initializeIPA(Registry);
484 initializeTransformUtils(Registry);
485 initializeInstCombine(Registry);
486 initializeInstrumentation(Registry);
487 initializeTarget(Registry);
488
489 cl::ParseCommandLineOptions(argc, argv,
490 "llvm .bc -> .bc modular optimizer and analysis printer\n");
491
492 if (AnalyzeOnly && NoOutput) {
493 errs() << argv[0] << ": analyze mode conflicts with no-output mode.\n";
494 return 1;
495 }
496
497 // Allocate a full target machine description only if necessary.
498 // FIXME: The choice of target should be controllable on the command line.
499 std::auto_ptr<TargetMachine> target;
500
501 SMDiagnostic Err;
502
503 // Load the input module...
504 std::auto_ptr<Module> M;
505 M.reset(ParseIRFile(InputFilename, Err, Context));
506
507 if (M.get() == 0) {
508 Err.Print(argv[0], errs());
509 return 1;
510 }
511
512 // Figure out what stream we are supposed to write to...
513 OwningPtr<tool_output_file> Out;
514 if (NoOutput) {
515 if (!OutputFilename.empty())
516 errs() << "WARNING: The -o (output filename) option is ignored when\n"
517 "the --disable-output option is used.\n";
518 } else {
519 // Default to standard output.
520 if (OutputFilename.empty())
521 OutputFilename = "-";
522
523 std::string ErrorInfo;
524 Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
525 raw_fd_ostream::F_Binary));
526 if (!ErrorInfo.empty()) {
527 errs() << ErrorInfo << '\n';
528 return 1;
529 }
530 }
531
532 // If the output is set to be emitted to standard out, and standard out is a
533 // console, print out a warning message and refuse to do it. We don't
534 // impress anyone by spewing tons of binary goo to a terminal.
535 if (!Force && !NoOutput && !AnalyzeOnly && !OutputAssembly)
536 if (CheckBitcodeOutputToConsole(Out->os(), !Quiet))
537 NoOutput = true;
538
539 // Create a PassManager to hold and optimize the collection of passes we are
540 // about to build.
541 //
542 PassManager Passes;
543
544 // Add an appropriate TargetLibraryInfo pass for the module's triple.
545 TargetLibraryInfo *TLI = new TargetLibraryInfo(Triple(M->getTargetTriple()));
546
547 // The -disable-simplify-libcalls flag actually disables all builtin optzns.
548 if (DisableSimplifyLibCalls)
549 TLI->disableAllFunctions();
550 Passes.add(TLI);
551
552 // Add an appropriate TargetData instance for this module.
553 TargetData *TD = 0;
554 const std::string &ModuleDataLayout = M.get()->getDataLayout();
555 if (!ModuleDataLayout.empty())
556 TD = new TargetData(ModuleDataLayout);
557 else if (!DefaultDataLayout.empty())
558 TD = new TargetData(DefaultDataLayout);
559
560 if (TD)
561 Passes.add(TD);
562
563 OwningPtr<FunctionPassManager> FPasses;
564 if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
565 FPasses.reset(new FunctionPassManager(M.get()));
566 if (TD)
567 FPasses->add(new TargetData(*TD));
568 }
569
570 if (PrintBreakpoints) {
571 // Default to standard output.
572 if (!Out) {
573 if (OutputFilename.empty())
574 OutputFilename = "-";
575
576 std::string ErrorInfo;
577 Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
578 raw_fd_ostream::F_Binary));
579 if (!ErrorInfo.empty()) {
580 errs() << ErrorInfo << '\n';
581 return 1;
582 }
583 }
584 Passes.add(new BreakpointPrinter(Out->os()));
585 NoOutput = true;
586 }
587
588 // If the -strip-debug command line option was specified, add it. If
589 // -std-compile-opts was also specified, it will handle StripDebug.
590 if (StripDebug && !StandardCompileOpts)
591 addPass(Passes, createStripSymbolsPass(true));
592
593 // Create a new optimization pass for each one specified on the command line
594 for (unsigned i = 0; i < PassList.size(); ++i) {
595 // Check to see if -std-compile-opts was specified before this option. If
596 // so, handle it.
597 if (StandardCompileOpts &&
598 StandardCompileOpts.getPosition() < PassList.getPosition(i)) {
599 AddStandardCompilePasses(Passes);
600 StandardCompileOpts = false;
601 }
602
603 if (StandardLinkOpts &&
604 StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
605 AddStandardLinkPasses(Passes);
606 StandardLinkOpts = false;
607 }
608
609 if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
610 AddOptimizationPasses(Passes, *FPasses, 1);
611 OptLevelO1 = false;
612 }
613
614 if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
615 AddOptimizationPasses(Passes, *FPasses, 2);
616 OptLevelO2 = false;
617 }
618
619 if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
620 AddOptimizationPasses(Passes, *FPasses, 3);
621 OptLevelO3 = false;
622 }
623
624 const PassInfo *PassInf = PassList[i];
625 Pass *P = 0;
626 if (PassInf->getNormalCtor())
627 P = PassInf->getNormalCtor()();
628 else
629 errs() << argv[0] << ": cannot create pass: "
630 << PassInf->getPassName() << "\n";
631 if (P) {
632 PassKind Kind = P->getPassKind();
633 addPass(Passes, P);
634
635 if (AnalyzeOnly) {
636 switch (Kind) {
637 case PT_BasicBlock:
638 Passes.add(new BasicBlockPassPrinter(PassInf, Out->os()));
639 break;
640 case PT_Region:
641 Passes.add(new RegionPassPrinter(PassInf, Out->os()));
642 break;
643 case PT_Loop:
644 Passes.add(new LoopPassPrinter(PassInf, Out->os()));
645 break;
646 case PT_Function:
647 Passes.add(new FunctionPassPrinter(PassInf, Out->os()));
648 break;
649 case PT_CallGraphSCC:
650 Passes.add(new CallGraphSCCPassPrinter(PassInf, Out->os()));
651 break;
652 default:
653 Passes.add(new ModulePassPrinter(PassInf, Out->os()));
654 break;
655 }
656 }
657 }
658
659 if (PrintEachXForm)
660 Passes.add(createPrintModulePass(&errs()));
661 }
662
663 // If -std-compile-opts was specified at the end of the pass list, add them.
664 if (StandardCompileOpts) {
665 AddStandardCompilePasses(Passes);
666 StandardCompileOpts = false;
667 }
668
669 if (StandardLinkOpts) {
670 AddStandardLinkPasses(Passes);
671 StandardLinkOpts = false;
672 }
673
674 if (OptLevelO1)
675 AddOptimizationPasses(Passes, *FPasses, 1);
676
677 if (OptLevelO2)
678 AddOptimizationPasses(Passes, *FPasses, 2);
679
680 if (OptLevelO3)
681 AddOptimizationPasses(Passes, *FPasses, 3);
682
683 if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
684 FPasses->doInitialization();
685 for (Module::iterator F = M->begin(), E = M->end(); F != E; ++F)
686 FPasses->run(*F);
687 FPasses->doFinalization();
688 }
689
690 // Check that the module is well formed on completion of optimization
691 if (!NoVerify && !VerifyEach)
692 Passes.add(createVerifierPass());
693
694 // Write bitcode or assembly to the output as the last step...
695 if (!NoOutput && !AnalyzeOnly) {
696 if (OutputAssembly)
697 Passes.add(createPrintModulePass(&Out->os()));
698 else
699 Passes.add(createBitcodeWriterPass(Out->os()));
700 }
701
702 // Before executing passes, print the final values of the LLVM options.
703 cl::PrintOptionValues();
704
705 // Now that we have all of the passes ready, run them.
706 Passes.run(*M.get());
707
708 // Declare success.
709 if (!NoOutput || PrintBreakpoints)
710 Out->keep();
711
712 return 0;
713}