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(false), 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(createCFLAliasAnalysisPass());
157 PM.add(createTypeBasedAliasAnalysisPass());
158 PM.add(createScopedNoAliasAAPass());
159 PM.add(createBasicAliasAnalysisPass());
162 void PassManagerBuilder::populateFunctionPassManager(
163 legacy::FunctionPassManager &FPM) {
164 addExtensionsToPM(EP_EarlyAsPossible, FPM);
166 // Add LibraryInfo if we have some.
168 FPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
170 if (OptLevel == 0) return;
172 addInitialAliasAnalysisPasses(FPM);
174 FPM.add(createCFGSimplificationPass());
176 FPM.add(createSROAPass());
178 FPM.add(createScalarReplAggregatesPass());
179 FPM.add(createEarlyCSEPass());
180 FPM.add(createLowerExpectIntrinsicPass());
183 void PassManagerBuilder::populateModulePassManager(
184 legacy::PassManagerBase &MPM) {
185 // If all optimizations are disabled, just run the always-inline pass and,
186 // if enabled, the function merging pass.
193 // FIXME: The BarrierNoopPass is a HACK! The inliner pass above implicitly
194 // creates a CGSCC pass manager, but we don't want to add extensions into
195 // that pass manager. To prevent this we insert a no-op module pass to reset
196 // the pass manager to get the same behavior as EP_OptimizerLast in non-O0
197 // builds. The function merging pass is
199 MPM.add(createMergeFunctionsPass());
200 else if (!GlobalExtensions->empty() || !Extensions.empty())
201 MPM.add(createBarrierNoopPass());
203 addExtensionsToPM(EP_EnabledOnOptLevel0, MPM);
207 // Add LibraryInfo if we have some.
209 MPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
211 addInitialAliasAnalysisPasses(MPM);
213 if (!DisableUnitAtATime) {
214 addExtensionsToPM(EP_ModuleOptimizerEarly, MPM);
216 MPM.add(createIPSCCPPass()); // IP SCCP
217 MPM.add(createGlobalOptimizerPass()); // Optimize out global vars
219 MPM.add(createDeadArgEliminationPass()); // Dead argument elimination
221 MPM.add(createInstructionCombiningPass());// Clean up after IPCP & DAE
222 addExtensionsToPM(EP_Peephole, MPM);
223 MPM.add(createCFGSimplificationPass()); // Clean up after IPCP & DAE
226 if (EnableNonLTOGlobalsModRef)
227 // We add a module alias analysis pass here. In part due to bugs in the
228 // analysis infrastructure this "works" in that the analysis stays alive
229 // for the entire SCC pass run below.
230 MPM.add(createGlobalsModRefPass());
232 // Start of CallGraph SCC passes.
233 if (!DisableUnitAtATime)
234 MPM.add(createPruneEHPass()); // Remove dead EH info
239 if (!DisableUnitAtATime)
240 MPM.add(createFunctionAttrsPass()); // Set readonly/readnone attrs
242 MPM.add(createArgumentPromotionPass()); // Scalarize uninlined fn args
244 // Start of function pass.
245 // Break up aggregate allocas, using SSAUpdater.
247 MPM.add(createSROAPass(/*RequiresDomTree*/ false));
249 MPM.add(createScalarReplAggregatesPass(-1, false));
250 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
251 MPM.add(createJumpThreadingPass()); // Thread jumps.
252 MPM.add(createCorrelatedValuePropagationPass()); // Propagate conditionals
253 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
254 MPM.add(createInstructionCombiningPass()); // Combine silly seq's
255 addExtensionsToPM(EP_Peephole, MPM);
257 MPM.add(createTailCallEliminationPass()); // Eliminate tail calls
258 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
259 MPM.add(createReassociatePass()); // Reassociate expressions
260 // Rotate Loop - disable header duplication at -Oz
261 MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
262 MPM.add(createLICMPass()); // Hoist loop invariants
263 MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
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 (EnableNonLTOGlobalsModRef)
335 // We add a fresh GlobalsModRef run at this point. This is particularly
336 // useful as the above will have inlined, DCE'ed, and function-attr
337 // propagated everything. We should at this point have a reasonably minimal
338 // and richly annotated call graph. By computing aliasing and mod/ref
339 // information for all local globals here, the late loop passes and notably
340 // the vectorizer will be able to use them to help recognize vectorizable
341 // memory operations.
343 // Note that this relies on a bug in the pass manager which preserves
344 // a module analysis into a function pass pipeline (and throughout it) so
345 // long as the first function pass doesn't invalidate the module analysis.
346 // Thus both Float2Int and LoopRotate have to preserve AliasAnalysis for
347 // this to work. Fortunately, it is trivial to preserve AliasAnalysis
348 // (doing nothing preserves it as it is required to be conservatively
349 // correct in the face of IR changes).
350 MPM.add(createGlobalsModRefPass());
353 MPM.add(createFloat2IntPass());
355 addExtensionsToPM(EP_VectorizerStart, MPM);
357 // Re-rotate loops in all our loop nests. These may have fallout out of
358 // rotated form due to GVN or other transformations, and the vectorizer relies
359 // on the rotated form. Disable header duplication at -Oz.
360 MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
362 // Distribute loops to allow partial vectorization. I.e. isolate dependences
363 // into separate loop that would otherwise inhibit vectorization.
364 if (EnableLoopDistribute)
365 MPM.add(createLoopDistributePass());
367 MPM.add(createLoopVectorizePass(DisableUnrollLoops, LoopVectorize));
368 // FIXME: Because of #pragma vectorize enable, the passes below are always
369 // inserted in the pipeline, even when the vectorizer doesn't run (ex. when
370 // on -O1 and no #pragma is found). Would be good to have these two passes
371 // as function calls, so that we can only pass them when the vectorizer
373 MPM.add(createInstructionCombiningPass());
374 if (OptLevel > 1 && ExtraVectorizerPasses) {
375 // At higher optimization levels, try to clean up any runtime overlap and
376 // alignment checks inserted by the vectorizer. We want to track correllated
377 // runtime checks for two inner loops in the same outer loop, fold any
378 // common computations, hoist loop-invariant aspects out of any outer loop,
379 // and unswitch the runtime checks if possible. Once hoisted, we may have
380 // dead (or speculatable) control flows or more combining opportunities.
381 MPM.add(createEarlyCSEPass());
382 MPM.add(createCorrelatedValuePropagationPass());
383 MPM.add(createInstructionCombiningPass());
384 MPM.add(createLICMPass());
385 MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
386 MPM.add(createCFGSimplificationPass());
387 MPM.add(createInstructionCombiningPass());
390 if (RunSLPAfterLoopVectorization) {
392 MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
393 if (OptLevel > 1 && ExtraVectorizerPasses) {
394 MPM.add(createEarlyCSEPass());
399 MPM.add(createBBVectorizePass());
400 MPM.add(createInstructionCombiningPass());
401 addExtensionsToPM(EP_Peephole, MPM);
402 if (OptLevel > 1 && UseGVNAfterVectorization)
403 MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
405 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
407 // BBVectorize may have significantly shortened a loop body; unroll again.
408 if (!DisableUnrollLoops)
409 MPM.add(createLoopUnrollPass());
413 addExtensionsToPM(EP_Peephole, MPM);
414 MPM.add(createCFGSimplificationPass());
415 MPM.add(createInstructionCombiningPass());
417 if (!DisableUnrollLoops) {
418 MPM.add(createLoopUnrollPass()); // Unroll small loops
420 // LoopUnroll may generate some redundency to cleanup.
421 MPM.add(createInstructionCombiningPass());
423 // Runtime unrolling will introduce runtime check in loop prologue. If the
424 // unrolled loop is a inner loop, then the prologue will be inside the
425 // outer loop. LICM pass can help to promote the runtime check out if the
426 // checked value is loop invariant.
427 MPM.add(createLICMPass());
430 // After vectorization and unrolling, assume intrinsics may tell us more
431 // about pointer alignments.
432 MPM.add(createAlignmentFromAssumptionsPass());
434 if (!DisableUnitAtATime) {
435 // FIXME: We shouldn't bother with this anymore.
436 MPM.add(createStripDeadPrototypesPass()); // Get rid of dead prototypes
438 // GlobalOpt already deletes dead functions and globals, at -O2 try a
439 // late pass of GlobalDCE. It is capable of deleting dead cycles.
441 if (!PrepareForLTO) {
442 // Remove avail extern fns and globals definitions if we aren't
443 // compiling an object file for later LTO. For LTO we want to preserve
444 // these so they are eligible for inlining at link-time. Note if they
445 // are unreferenced they will be removed by GlobalDCE below, so
446 // this only impacts referenced available externally globals.
447 // Eventually they will be suppressed during codegen, but eliminating
448 // here enables more opportunity for GlobalDCE as it may make
449 // globals referenced by available external functions dead.
450 MPM.add(createEliminateAvailableExternallyPass());
452 MPM.add(createGlobalDCEPass()); // Remove dead fns and globals.
453 MPM.add(createConstantMergePass()); // Merge dup global constants
458 MPM.add(createMergeFunctionsPass());
460 addExtensionsToPM(EP_OptimizerLast, MPM);
463 void PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
464 // Provide AliasAnalysis services for optimizations.
465 addInitialAliasAnalysisPasses(PM);
467 // Propagate constants at call sites into the functions they call. This
468 // opens opportunities for globalopt (and inlining) by substituting function
469 // pointers passed as arguments to direct uses of functions.
470 PM.add(createIPSCCPPass());
472 // Now that we internalized some globals, see if we can hack on them!
473 PM.add(createGlobalOptimizerPass());
475 // Linking modules together can lead to duplicated global constants, only
476 // keep one copy of each constant.
477 PM.add(createConstantMergePass());
479 // Remove unused arguments from functions.
480 PM.add(createDeadArgEliminationPass());
482 // Reduce the code after globalopt and ipsccp. Both can open up significant
483 // simplification opportunities, and both can propagate functions through
484 // function pointers. When this happens, we often have to resolve varargs
485 // calls, etc, so let instcombine do this.
486 PM.add(createInstructionCombiningPass());
487 addExtensionsToPM(EP_Peephole, PM);
489 // Inline small functions
490 bool RunInliner = Inliner;
496 PM.add(createPruneEHPass()); // Remove dead EH info.
498 // Optimize globals again if we ran the inliner.
500 PM.add(createGlobalOptimizerPass());
501 PM.add(createGlobalDCEPass()); // Remove dead functions.
503 // If we didn't decide to inline a function, check to see if we can
504 // transform it to pass arguments by value instead of by reference.
505 PM.add(createArgumentPromotionPass());
507 // The IPO passes may leave cruft around. Clean up after them.
508 PM.add(createInstructionCombiningPass());
509 addExtensionsToPM(EP_Peephole, PM);
510 PM.add(createJumpThreadingPass());
514 PM.add(createSROAPass());
516 PM.add(createScalarReplAggregatesPass());
518 // Run a few AA driven optimizations here and now, to cleanup the code.
519 PM.add(createFunctionAttrsPass()); // Add nocapture.
520 PM.add(createGlobalsModRefPass()); // IP alias analysis.
522 PM.add(createLICMPass()); // Hoist loop invariants.
524 PM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds.
525 PM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies.
526 PM.add(createMemCpyOptPass()); // Remove dead memcpys.
529 PM.add(createDeadStoreEliminationPass());
531 // More loops are countable; try to optimize them.
532 PM.add(createIndVarSimplifyPass());
533 PM.add(createLoopDeletionPass());
534 if (EnableLoopInterchange)
535 PM.add(createLoopInterchangePass());
537 PM.add(createLoopVectorizePass(true, LoopVectorize));
539 // More scalar chains could be vectorized due to more alias information
540 if (RunSLPAfterLoopVectorization)
542 PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
544 // After vectorization, assume intrinsics may tell us more about pointer
546 PM.add(createAlignmentFromAssumptionsPass());
549 PM.add(createLoadCombinePass());
551 // Cleanup and simplify the code after the scalar optimizations.
552 PM.add(createInstructionCombiningPass());
553 addExtensionsToPM(EP_Peephole, PM);
555 PM.add(createJumpThreadingPass());
558 void PassManagerBuilder::addLateLTOOptimizationPasses(
559 legacy::PassManagerBase &PM) {
560 // Delete basic blocks, which optimization passes may have killed.
561 PM.add(createCFGSimplificationPass());
563 // Drop bodies of available externally objects to improve GlobalDCE.
564 PM.add(createEliminateAvailableExternallyPass());
566 // Now that we have optimized the program, discard unreachable functions.
567 PM.add(createGlobalDCEPass());
569 // FIXME: this is profitable (for compiler time) to do at -O0 too, but
570 // currently it damages debug info.
572 PM.add(createMergeFunctionsPass());
575 void PassManagerBuilder::populateLTOPassManager(legacy::PassManagerBase &PM) {
577 PM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
580 PM.add(createVerifierPass());
583 addLTOOptimizationPasses(PM);
585 // Lower bit sets to globals. This pass supports Clang's control flow
586 // integrity mechanisms (-fsanitize=cfi*) and needs to run at link time if CFI
587 // is enabled. The pass does nothing if CFI is disabled.
588 PM.add(createLowerBitSetsPass());
591 addLateLTOOptimizationPasses(PM);
594 PM.add(createVerifierPass());
597 inline PassManagerBuilder *unwrap(LLVMPassManagerBuilderRef P) {
598 return reinterpret_cast<PassManagerBuilder*>(P);
601 inline LLVMPassManagerBuilderRef wrap(PassManagerBuilder *P) {
602 return reinterpret_cast<LLVMPassManagerBuilderRef>(P);
605 LLVMPassManagerBuilderRef LLVMPassManagerBuilderCreate() {
606 PassManagerBuilder *PMB = new PassManagerBuilder();
610 void LLVMPassManagerBuilderDispose(LLVMPassManagerBuilderRef PMB) {
611 PassManagerBuilder *Builder = unwrap(PMB);
616 LLVMPassManagerBuilderSetOptLevel(LLVMPassManagerBuilderRef PMB,
618 PassManagerBuilder *Builder = unwrap(PMB);
619 Builder->OptLevel = OptLevel;
623 LLVMPassManagerBuilderSetSizeLevel(LLVMPassManagerBuilderRef PMB,
624 unsigned SizeLevel) {
625 PassManagerBuilder *Builder = unwrap(PMB);
626 Builder->SizeLevel = SizeLevel;
630 LLVMPassManagerBuilderSetDisableUnitAtATime(LLVMPassManagerBuilderRef PMB,
632 PassManagerBuilder *Builder = unwrap(PMB);
633 Builder->DisableUnitAtATime = Value;
637 LLVMPassManagerBuilderSetDisableUnrollLoops(LLVMPassManagerBuilderRef PMB,
639 PassManagerBuilder *Builder = unwrap(PMB);
640 Builder->DisableUnrollLoops = Value;
644 LLVMPassManagerBuilderSetDisableSimplifyLibCalls(LLVMPassManagerBuilderRef PMB,
646 // NOTE: The simplify-libcalls pass has been removed.
650 LLVMPassManagerBuilderUseInlinerWithThreshold(LLVMPassManagerBuilderRef PMB,
651 unsigned Threshold) {
652 PassManagerBuilder *Builder = unwrap(PMB);
653 Builder->Inliner = createFunctionInliningPass(Threshold);
657 LLVMPassManagerBuilderPopulateFunctionPassManager(LLVMPassManagerBuilderRef PMB,
658 LLVMPassManagerRef PM) {
659 PassManagerBuilder *Builder = unwrap(PMB);
660 legacy::FunctionPassManager *FPM = unwrap<legacy::FunctionPassManager>(PM);
661 Builder->populateFunctionPassManager(*FPM);
665 LLVMPassManagerBuilderPopulateModulePassManager(LLVMPassManagerBuilderRef PMB,
666 LLVMPassManagerRef PM) {
667 PassManagerBuilder *Builder = unwrap(PMB);
668 legacy::PassManagerBase *MPM = unwrap(PM);
669 Builder->populateModulePassManager(*MPM);
672 void LLVMPassManagerBuilderPopulateLTOPassManager(LLVMPassManagerBuilderRef PMB,
673 LLVMPassManagerRef PM,
674 LLVMBool Internalize,
675 LLVMBool RunInliner) {
676 PassManagerBuilder *Builder = unwrap(PMB);
677 legacy::PassManagerBase *LPM = unwrap(PM);
679 // A small backwards compatibility hack. populateLTOPassManager used to take
680 // an RunInliner option.
681 if (RunInliner && !Builder->Inliner)
682 Builder->Inliner = createFunctionInliningPass();
684 Builder->populateLTOPassManager(*LPM);