1 //===- PassManagerBuilder.cpp - Build Standard Pass -----------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the PassManagerBuilder class, which is used to set up a
11 // "standard" optimization sequence suitable for languages like C and C++.
13 //===----------------------------------------------------------------------===//
16 #include "llvm/Transforms/IPO/PassManagerBuilder.h"
17 #include "llvm-c/Transforms/PassManagerBuilder.h"
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/Analysis/Passes.h"
20 #include "llvm/IR/DataLayout.h"
21 #include "llvm/IR/Verifier.h"
22 #include "llvm/IR/LegacyPassManager.h"
23 #include "llvm/Support/CommandLine.h"
24 #include "llvm/Support/ManagedStatic.h"
25 #include "llvm/Analysis/BasicAliasAnalysis.h"
26 #include "llvm/Analysis/CFLAliasAnalysis.h"
27 #include "llvm/Analysis/GlobalsModRef.h"
28 #include "llvm/Analysis/ScopedNoAliasAA.h"
29 #include "llvm/Analysis/TargetLibraryInfo.h"
30 #include "llvm/Analysis/TypeBasedAliasAnalysis.h"
31 #include "llvm/Target/TargetMachine.h"
32 #include "llvm/Transforms/IPO.h"
33 #include "llvm/Transforms/Scalar.h"
34 #include "llvm/Transforms/Vectorize.h"
39 RunLoopVectorization("vectorize-loops", cl::Hidden,
40 cl::desc("Run the Loop vectorization passes"));
43 RunSLPVectorization("vectorize-slp", cl::Hidden,
44 cl::desc("Run the SLP vectorization passes"));
47 RunBBVectorization("vectorize-slp-aggressive", cl::Hidden,
48 cl::desc("Run the BB vectorization passes"));
51 UseGVNAfterVectorization("use-gvn-after-vectorization",
52 cl::init(false), cl::Hidden,
53 cl::desc("Run GVN instead of Early CSE after vectorization passes"));
55 static cl::opt<bool> ExtraVectorizerPasses(
56 "extra-vectorizer-passes", cl::init(false), cl::Hidden,
57 cl::desc("Run cleanup optimization passes after vectorization."));
59 static cl::opt<bool> UseNewSROA("use-new-sroa",
60 cl::init(true), cl::Hidden,
61 cl::desc("Enable the new, experimental SROA pass"));
64 RunLoopRerolling("reroll-loops", cl::Hidden,
65 cl::desc("Run the loop rerolling pass"));
68 RunFloat2Int("float-to-int", cl::Hidden, cl::init(true),
69 cl::desc("Run the float2int (float demotion) pass"));
71 static cl::opt<bool> RunLoadCombine("combine-loads", cl::init(false),
73 cl::desc("Run the load combining pass"));
76 RunSLPAfterLoopVectorization("run-slp-after-loop-vectorization",
77 cl::init(true), cl::Hidden,
78 cl::desc("Run the SLP vectorizer (and BB vectorizer) after the Loop "
79 "vectorizer instead of before"));
81 static cl::opt<bool> UseCFLAA("use-cfl-aa",
82 cl::init(false), cl::Hidden,
83 cl::desc("Enable the new, experimental CFL alias analysis"));
86 EnableMLSM("mlsm", cl::init(true), cl::Hidden,
87 cl::desc("Enable motion of merged load and store"));
89 static cl::opt<bool> EnableLoopInterchange(
90 "enable-loopinterchange", cl::init(false), cl::Hidden,
91 cl::desc("Enable the new, experimental LoopInterchange Pass"));
93 static cl::opt<bool> EnableLoopDistribute(
94 "enable-loop-distribute", cl::init(false), cl::Hidden,
95 cl::desc("Enable the new, experimental LoopDistribution Pass"));
97 static cl::opt<bool> EnableNonLTOGlobalsModRef(
98 "enable-non-lto-gmr", cl::init(true), cl::Hidden,
100 "Enable the GlobalsModRef AliasAnalysis outside of the LTO pipeline."));
102 PassManagerBuilder::PassManagerBuilder() {
105 LibraryInfo = nullptr;
107 DisableUnitAtATime = false;
108 DisableUnrollLoops = false;
109 BBVectorize = RunBBVectorization;
110 SLPVectorize = RunSLPVectorization;
111 LoopVectorize = RunLoopVectorization;
112 RerollLoops = RunLoopRerolling;
113 LoadCombine = RunLoadCombine;
114 DisableGVNLoadPRE = false;
116 VerifyOutput = false;
117 MergeFunctions = false;
118 PrepareForLTO = false;
121 PassManagerBuilder::~PassManagerBuilder() {
126 /// Set of global extensions, automatically added as part of the standard set.
127 static ManagedStatic<SmallVector<std::pair<PassManagerBuilder::ExtensionPointTy,
128 PassManagerBuilder::ExtensionFn>, 8> > GlobalExtensions;
130 void PassManagerBuilder::addGlobalExtension(
131 PassManagerBuilder::ExtensionPointTy Ty,
132 PassManagerBuilder::ExtensionFn Fn) {
133 GlobalExtensions->push_back(std::make_pair(Ty, Fn));
136 void PassManagerBuilder::addExtension(ExtensionPointTy Ty, ExtensionFn Fn) {
137 Extensions.push_back(std::make_pair(Ty, Fn));
140 void PassManagerBuilder::addExtensionsToPM(ExtensionPointTy ETy,
141 legacy::PassManagerBase &PM) const {
142 for (unsigned i = 0, e = GlobalExtensions->size(); i != e; ++i)
143 if ((*GlobalExtensions)[i].first == ETy)
144 (*GlobalExtensions)[i].second(*this, PM);
145 for (unsigned i = 0, e = Extensions.size(); i != e; ++i)
146 if (Extensions[i].first == ETy)
147 Extensions[i].second(*this, PM);
150 void PassManagerBuilder::addInitialAliasAnalysisPasses(
151 legacy::PassManagerBase &PM) const {
152 // Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
153 // BasicAliasAnalysis wins if they disagree. This is intended to help
154 // support "obvious" type-punning idioms.
156 PM.add(createCFLAAWrapperPass());
157 PM.add(createTypeBasedAAWrapperPass());
158 PM.add(createScopedNoAliasAAWrapperPass());
161 void PassManagerBuilder::populateFunctionPassManager(
162 legacy::FunctionPassManager &FPM) {
163 addExtensionsToPM(EP_EarlyAsPossible, FPM);
165 // Add LibraryInfo if we have some.
167 FPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
169 if (OptLevel == 0) return;
171 addInitialAliasAnalysisPasses(FPM);
173 FPM.add(createCFGSimplificationPass());
175 FPM.add(createSROAPass());
177 FPM.add(createScalarReplAggregatesPass());
178 FPM.add(createEarlyCSEPass());
179 FPM.add(createLowerExpectIntrinsicPass());
182 void PassManagerBuilder::populateModulePassManager(
183 legacy::PassManagerBase &MPM) {
184 // If all optimizations are disabled, just run the always-inline pass and,
185 // if enabled, the function merging pass.
192 // FIXME: The BarrierNoopPass is a HACK! The inliner pass above implicitly
193 // creates a CGSCC pass manager, but we don't want to add extensions into
194 // that pass manager. To prevent this we insert a no-op module pass to reset
195 // the pass manager to get the same behavior as EP_OptimizerLast in non-O0
196 // builds. The function merging pass is
198 MPM.add(createMergeFunctionsPass());
199 else if (!GlobalExtensions->empty() || !Extensions.empty())
200 MPM.add(createBarrierNoopPass());
202 addExtensionsToPM(EP_EnabledOnOptLevel0, MPM);
206 // Add LibraryInfo if we have some.
208 MPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
210 addInitialAliasAnalysisPasses(MPM);
212 if (!DisableUnitAtATime) {
213 addExtensionsToPM(EP_ModuleOptimizerEarly, MPM);
215 MPM.add(createIPSCCPPass()); // IP SCCP
216 MPM.add(createGlobalOptimizerPass()); // Optimize out global vars
218 MPM.add(createDeadArgEliminationPass()); // Dead argument elimination
220 MPM.add(createInstructionCombiningPass());// Clean up after IPCP & DAE
221 addExtensionsToPM(EP_Peephole, MPM);
222 MPM.add(createCFGSimplificationPass()); // Clean up after IPCP & DAE
225 if (EnableNonLTOGlobalsModRef)
226 // We add a module alias analysis pass here. In part due to bugs in the
227 // analysis infrastructure this "works" in that the analysis stays alive
228 // for the entire SCC pass run below.
229 MPM.add(createGlobalsAAWrapperPass());
231 // Start of CallGraph SCC passes.
232 if (!DisableUnitAtATime)
233 MPM.add(createPruneEHPass()); // Remove dead EH info
238 if (!DisableUnitAtATime)
239 MPM.add(createFunctionAttrsPass()); // Set readonly/readnone attrs
241 MPM.add(createArgumentPromotionPass()); // Scalarize uninlined fn args
243 // Start of function pass.
244 // Break up aggregate allocas, using SSAUpdater.
246 MPM.add(createSROAPass());
248 MPM.add(createScalarReplAggregatesPass(-1, false));
249 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
250 MPM.add(createJumpThreadingPass()); // Thread jumps.
251 MPM.add(createCorrelatedValuePropagationPass()); // Propagate conditionals
252 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
253 MPM.add(createInstructionCombiningPass()); // Combine silly seq's
254 addExtensionsToPM(EP_Peephole, MPM);
256 MPM.add(createTailCallEliminationPass()); // Eliminate tail calls
257 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
258 MPM.add(createReassociatePass()); // Reassociate expressions
259 // Rotate Loop - disable header duplication at -Oz
260 MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
261 MPM.add(createLICMPass()); // Hoist loop invariants
262 MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
263 MPM.add(createCFGSimplificationPass());
264 MPM.add(createInstructionCombiningPass());
265 MPM.add(createIndVarSimplifyPass()); // Canonicalize indvars
266 MPM.add(createLoopIdiomPass()); // Recognize idioms like memset.
267 MPM.add(createLoopDeletionPass()); // Delete dead loops
268 if (EnableLoopInterchange) {
269 MPM.add(createLoopInterchangePass()); // Interchange loops
270 MPM.add(createCFGSimplificationPass());
272 if (!DisableUnrollLoops)
273 MPM.add(createSimpleLoopUnrollPass()); // Unroll small loops
274 addExtensionsToPM(EP_LoopOptimizerEnd, MPM);
278 MPM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds
279 MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
281 MPM.add(createMemCpyOptPass()); // Remove memcpy / form memset
282 MPM.add(createSCCPPass()); // Constant prop with SCCP
284 // Delete dead bit computations (instcombine runs after to fold away the dead
285 // computations, and then ADCE will run later to exploit any new DCE
286 // opportunities that creates).
287 MPM.add(createBitTrackingDCEPass()); // Delete dead bit computations
289 // Run instcombine after redundancy elimination to exploit opportunities
290 // opened up by them.
291 MPM.add(createInstructionCombiningPass());
292 addExtensionsToPM(EP_Peephole, MPM);
293 MPM.add(createJumpThreadingPass()); // Thread jumps
294 MPM.add(createCorrelatedValuePropagationPass());
295 MPM.add(createDeadStoreEliminationPass()); // Delete dead stores
296 MPM.add(createLICMPass());
298 addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
301 MPM.add(createLoopRerollPass());
302 if (!RunSLPAfterLoopVectorization) {
304 MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
307 MPM.add(createBBVectorizePass());
308 MPM.add(createInstructionCombiningPass());
309 addExtensionsToPM(EP_Peephole, MPM);
310 if (OptLevel > 1 && UseGVNAfterVectorization)
311 MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
313 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
315 // BBVectorize may have significantly shortened a loop body; unroll again.
316 if (!DisableUnrollLoops)
317 MPM.add(createLoopUnrollPass());
322 MPM.add(createLoadCombinePass());
324 MPM.add(createAggressiveDCEPass()); // Delete dead instructions
325 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
326 MPM.add(createInstructionCombiningPass()); // Clean up after everything.
327 addExtensionsToPM(EP_Peephole, MPM);
329 // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
330 // pass manager that we are specifically trying to avoid. To prevent this
331 // we must insert a no-op module pass to reset the pass manager.
332 MPM.add(createBarrierNoopPass());
334 if (!DisableUnitAtATime && OptLevel > 1 && !PrepareForLTO) {
335 // Remove avail extern fns and globals definitions if we aren't
336 // compiling an object file for later LTO. For LTO we want to preserve
337 // these so they are eligible for inlining at link-time. Note if they
338 // are unreferenced they will be removed by GlobalDCE later, so
339 // this only impacts referenced available externally globals.
340 // Eventually they will be suppressed during codegen, but eliminating
341 // here enables more opportunity for GlobalDCE as it may make
342 // globals referenced by available external functions dead
343 // and saves running remaining passes on the eliminated functions.
344 MPM.add(createEliminateAvailableExternallyPass());
347 if (EnableNonLTOGlobalsModRef)
348 // We add a fresh GlobalsModRef run at this point. This is particularly
349 // useful as the above will have inlined, DCE'ed, and function-attr
350 // propagated everything. We should at this point have a reasonably minimal
351 // and richly annotated call graph. By computing aliasing and mod/ref
352 // information for all local globals here, the late loop passes and notably
353 // the vectorizer will be able to use them to help recognize vectorizable
354 // memory operations.
356 // Note that this relies on a bug in the pass manager which preserves
357 // a module analysis into a function pass pipeline (and throughout it) so
358 // long as the first function pass doesn't invalidate the module analysis.
359 // Thus both Float2Int and LoopRotate have to preserve AliasAnalysis for
360 // this to work. Fortunately, it is trivial to preserve AliasAnalysis
361 // (doing nothing preserves it as it is required to be conservatively
362 // correct in the face of IR changes).
363 MPM.add(createGlobalsAAWrapperPass());
366 MPM.add(createFloat2IntPass());
368 addExtensionsToPM(EP_VectorizerStart, MPM);
370 // Re-rotate loops in all our loop nests. These may have fallout out of
371 // rotated form due to GVN or other transformations, and the vectorizer relies
372 // on the rotated form. Disable header duplication at -Oz.
373 MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
375 // Distribute loops to allow partial vectorization. I.e. isolate dependences
376 // into separate loop that would otherwise inhibit vectorization.
377 if (EnableLoopDistribute)
378 MPM.add(createLoopDistributePass());
380 MPM.add(createLoopVectorizePass(DisableUnrollLoops, LoopVectorize));
381 // FIXME: Because of #pragma vectorize enable, the passes below are always
382 // inserted in the pipeline, even when the vectorizer doesn't run (ex. when
383 // on -O1 and no #pragma is found). Would be good to have these two passes
384 // as function calls, so that we can only pass them when the vectorizer
386 MPM.add(createInstructionCombiningPass());
387 if (OptLevel > 1 && ExtraVectorizerPasses) {
388 // At higher optimization levels, try to clean up any runtime overlap and
389 // alignment checks inserted by the vectorizer. We want to track correllated
390 // runtime checks for two inner loops in the same outer loop, fold any
391 // common computations, hoist loop-invariant aspects out of any outer loop,
392 // and unswitch the runtime checks if possible. Once hoisted, we may have
393 // dead (or speculatable) control flows or more combining opportunities.
394 MPM.add(createEarlyCSEPass());
395 MPM.add(createCorrelatedValuePropagationPass());
396 MPM.add(createInstructionCombiningPass());
397 MPM.add(createLICMPass());
398 MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
399 MPM.add(createCFGSimplificationPass());
400 MPM.add(createInstructionCombiningPass());
403 if (RunSLPAfterLoopVectorization) {
405 MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
406 if (OptLevel > 1 && ExtraVectorizerPasses) {
407 MPM.add(createEarlyCSEPass());
412 MPM.add(createBBVectorizePass());
413 MPM.add(createInstructionCombiningPass());
414 addExtensionsToPM(EP_Peephole, MPM);
415 if (OptLevel > 1 && UseGVNAfterVectorization)
416 MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
418 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
420 // BBVectorize may have significantly shortened a loop body; unroll again.
421 if (!DisableUnrollLoops)
422 MPM.add(createLoopUnrollPass());
426 addExtensionsToPM(EP_Peephole, MPM);
427 MPM.add(createCFGSimplificationPass());
428 MPM.add(createInstructionCombiningPass());
430 if (!DisableUnrollLoops) {
431 MPM.add(createLoopUnrollPass()); // Unroll small loops
433 // LoopUnroll may generate some redundency to cleanup.
434 MPM.add(createInstructionCombiningPass());
436 // Runtime unrolling will introduce runtime check in loop prologue. If the
437 // unrolled loop is a inner loop, then the prologue will be inside the
438 // outer loop. LICM pass can help to promote the runtime check out if the
439 // checked value is loop invariant.
440 MPM.add(createLICMPass());
443 // After vectorization and unrolling, assume intrinsics may tell us more
444 // about pointer alignments.
445 MPM.add(createAlignmentFromAssumptionsPass());
447 if (!DisableUnitAtATime) {
448 // FIXME: We shouldn't bother with this anymore.
449 MPM.add(createStripDeadPrototypesPass()); // Get rid of dead prototypes
451 // GlobalOpt already deletes dead functions and globals, at -O2 try a
452 // late pass of GlobalDCE. It is capable of deleting dead cycles.
454 MPM.add(createGlobalDCEPass()); // Remove dead fns and globals.
455 MPM.add(createConstantMergePass()); // Merge dup global constants
460 MPM.add(createMergeFunctionsPass());
462 addExtensionsToPM(EP_OptimizerLast, MPM);
465 void PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
466 // Provide AliasAnalysis services for optimizations.
467 addInitialAliasAnalysisPasses(PM);
469 // Propagate constants at call sites into the functions they call. This
470 // opens opportunities for globalopt (and inlining) by substituting function
471 // pointers passed as arguments to direct uses of functions.
472 PM.add(createIPSCCPPass());
474 // Now that we internalized some globals, see if we can hack on them!
475 PM.add(createGlobalOptimizerPass());
477 // Linking modules together can lead to duplicated global constants, only
478 // keep one copy of each constant.
479 PM.add(createConstantMergePass());
481 // Remove unused arguments from functions.
482 PM.add(createDeadArgEliminationPass());
484 // Reduce the code after globalopt and ipsccp. Both can open up significant
485 // simplification opportunities, and both can propagate functions through
486 // function pointers. When this happens, we often have to resolve varargs
487 // calls, etc, so let instcombine do this.
488 PM.add(createInstructionCombiningPass());
489 addExtensionsToPM(EP_Peephole, PM);
491 // Inline small functions
492 bool RunInliner = Inliner;
498 PM.add(createPruneEHPass()); // Remove dead EH info.
500 // Optimize globals again if we ran the inliner.
502 PM.add(createGlobalOptimizerPass());
503 PM.add(createGlobalDCEPass()); // Remove dead functions.
505 // If we didn't decide to inline a function, check to see if we can
506 // transform it to pass arguments by value instead of by reference.
507 PM.add(createArgumentPromotionPass());
509 // The IPO passes may leave cruft around. Clean up after them.
510 PM.add(createInstructionCombiningPass());
511 addExtensionsToPM(EP_Peephole, PM);
512 PM.add(createJumpThreadingPass());
516 PM.add(createSROAPass());
518 PM.add(createScalarReplAggregatesPass());
520 // Run a few AA driven optimizations here and now, to cleanup the code.
521 PM.add(createFunctionAttrsPass()); // Add nocapture.
522 PM.add(createGlobalsAAWrapperPass()); // IP alias analysis.
524 PM.add(createLICMPass()); // Hoist loop invariants.
526 PM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds.
527 PM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies.
528 PM.add(createMemCpyOptPass()); // Remove dead memcpys.
531 PM.add(createDeadStoreEliminationPass());
533 // More loops are countable; try to optimize them.
534 PM.add(createIndVarSimplifyPass());
535 PM.add(createLoopDeletionPass());
536 if (EnableLoopInterchange)
537 PM.add(createLoopInterchangePass());
539 PM.add(createLoopVectorizePass(true, LoopVectorize));
541 // More scalar chains could be vectorized due to more alias information
542 if (RunSLPAfterLoopVectorization)
544 PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
546 // After vectorization, assume intrinsics may tell us more about pointer
548 PM.add(createAlignmentFromAssumptionsPass());
551 PM.add(createLoadCombinePass());
553 // Cleanup and simplify the code after the scalar optimizations.
554 PM.add(createInstructionCombiningPass());
555 addExtensionsToPM(EP_Peephole, PM);
557 PM.add(createJumpThreadingPass());
560 void PassManagerBuilder::addLateLTOOptimizationPasses(
561 legacy::PassManagerBase &PM) {
562 // Delete basic blocks, which optimization passes may have killed.
563 PM.add(createCFGSimplificationPass());
565 // Drop bodies of available externally objects to improve GlobalDCE.
566 PM.add(createEliminateAvailableExternallyPass());
568 // Now that we have optimized the program, discard unreachable functions.
569 PM.add(createGlobalDCEPass());
571 // FIXME: this is profitable (for compiler time) to do at -O0 too, but
572 // currently it damages debug info.
574 PM.add(createMergeFunctionsPass());
577 void PassManagerBuilder::populateLTOPassManager(legacy::PassManagerBase &PM) {
579 PM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
582 PM.add(createVerifierPass());
585 addLTOOptimizationPasses(PM);
587 // Lower bit sets to globals. This pass supports Clang's control flow
588 // integrity mechanisms (-fsanitize=cfi*) and needs to run at link time if CFI
589 // is enabled. The pass does nothing if CFI is disabled.
590 PM.add(createLowerBitSetsPass());
593 addLateLTOOptimizationPasses(PM);
596 PM.add(createVerifierPass());
599 inline PassManagerBuilder *unwrap(LLVMPassManagerBuilderRef P) {
600 return reinterpret_cast<PassManagerBuilder*>(P);
603 inline LLVMPassManagerBuilderRef wrap(PassManagerBuilder *P) {
604 return reinterpret_cast<LLVMPassManagerBuilderRef>(P);
607 LLVMPassManagerBuilderRef LLVMPassManagerBuilderCreate() {
608 PassManagerBuilder *PMB = new PassManagerBuilder();
612 void LLVMPassManagerBuilderDispose(LLVMPassManagerBuilderRef PMB) {
613 PassManagerBuilder *Builder = unwrap(PMB);
618 LLVMPassManagerBuilderSetOptLevel(LLVMPassManagerBuilderRef PMB,
620 PassManagerBuilder *Builder = unwrap(PMB);
621 Builder->OptLevel = OptLevel;
625 LLVMPassManagerBuilderSetSizeLevel(LLVMPassManagerBuilderRef PMB,
626 unsigned SizeLevel) {
627 PassManagerBuilder *Builder = unwrap(PMB);
628 Builder->SizeLevel = SizeLevel;
632 LLVMPassManagerBuilderSetDisableUnitAtATime(LLVMPassManagerBuilderRef PMB,
634 PassManagerBuilder *Builder = unwrap(PMB);
635 Builder->DisableUnitAtATime = Value;
639 LLVMPassManagerBuilderSetDisableUnrollLoops(LLVMPassManagerBuilderRef PMB,
641 PassManagerBuilder *Builder = unwrap(PMB);
642 Builder->DisableUnrollLoops = Value;
646 LLVMPassManagerBuilderSetDisableSimplifyLibCalls(LLVMPassManagerBuilderRef PMB,
648 // NOTE: The simplify-libcalls pass has been removed.
652 LLVMPassManagerBuilderUseInlinerWithThreshold(LLVMPassManagerBuilderRef PMB,
653 unsigned Threshold) {
654 PassManagerBuilder *Builder = unwrap(PMB);
655 Builder->Inliner = createFunctionInliningPass(Threshold);
659 LLVMPassManagerBuilderPopulateFunctionPassManager(LLVMPassManagerBuilderRef PMB,
660 LLVMPassManagerRef PM) {
661 PassManagerBuilder *Builder = unwrap(PMB);
662 legacy::FunctionPassManager *FPM = unwrap<legacy::FunctionPassManager>(PM);
663 Builder->populateFunctionPassManager(*FPM);
667 LLVMPassManagerBuilderPopulateModulePassManager(LLVMPassManagerBuilderRef PMB,
668 LLVMPassManagerRef PM) {
669 PassManagerBuilder *Builder = unwrap(PMB);
670 legacy::PassManagerBase *MPM = unwrap(PM);
671 Builder->populateModulePassManager(*MPM);
674 void LLVMPassManagerBuilderPopulateLTOPassManager(LLVMPassManagerBuilderRef PMB,
675 LLVMPassManagerRef PM,
676 LLVMBool Internalize,
677 LLVMBool RunInliner) {
678 PassManagerBuilder *Builder = unwrap(PMB);
679 legacy::PassManagerBase *LPM = unwrap(PM);
681 // A small backwards compatibility hack. populateLTOPassManager used to take
682 // an RunInliner option.
683 if (RunInliner && !Builder->Inliner)
684 Builder->Inliner = createFunctionInliningPass();
686 Builder->populateLTOPassManager(*LPM);