LLVM 22.0.0git
Passes.h
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1//===-- Passes.h - Target independent code generation passes ----*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines interfaces to access the target independent code generation
10// passes provided by the LLVM backend.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_CODEGEN_PASSES_H
15#define LLVM_CODEGEN_PASSES_H
16
21
22#include <functional>
23#include <string>
24
25namespace llvm {
26
27class FunctionPass;
28class MachineFunction;
30class ModulePass;
31class Pass;
32class TargetMachine;
33class raw_ostream;
34enum class RunOutliner;
35
36template <typename T> class IntrusiveRefCntPtr;
37namespace vfs {
38class FileSystem;
39} // namespace vfs
40
41} // namespace llvm
42
43// List of target independent CodeGen pass IDs.
44namespace llvm {
45
46/// AtomicExpandPass - At IR level this pass replace atomic instructions with
47/// __atomic_* library calls, or target specific instruction which implement the
48/// same semantics in a way which better fits the target backend.
50
51/// createUnreachableBlockEliminationPass - The LLVM code generator does not
52/// work well with unreachable basic blocks (what live ranges make sense for a
53/// block that cannot be reached?). As such, a code generator should either
54/// not instruction select unreachable blocks, or run this pass as its
55/// last LLVM modifying pass to clean up blocks that are not reachable from
56/// the entry block.
58
59/// createGCEmptyBasicblocksPass - Empty basic blocks (basic blocks without
60/// real code) appear as the result of optimization passes removing
61/// instructions. These blocks confuscate profile analysis (e.g., basic block
62/// sections) since they will share the address of their fallthrough blocks.
63/// This pass garbage-collects such basic blocks.
65
66/// createBasicBlockSections Pass - This pass assigns sections to machine
67/// basic blocks and is enabled with -fbasic-block-sections.
69
71
72/// createMachineFunctionSplitterPass - This pass splits machine functions
73/// using profile information.
75
76/// createStaticDataSplitterPass - This is a machine-function pass that
77/// categorizes static data hotness using profile information.
79
80/// createStaticDataAnnotatorPASS - This is a module pass that reads from
81/// StaticDataProfileInfoWrapperPass and annotates the section prefix of
82/// global variables.
84
85/// MachineFunctionPrinter pass - This pass prints out the machine function to
86/// the given stream as a debugging tool.
89 const std::string &Banner = "");
90
91/// StackFramePrinter pass - This pass prints out the machine function's
92/// stack frame to the given stream as a debugging tool.
94
95/// MIRPrinting pass - this pass prints out the LLVM IR into the given stream
96/// using the MIR serialization format.
98
99/// This pass resets a MachineFunction when it has the FailedISel property
100/// as if it was just created.
101/// If EmitFallbackDiag is true, the pass will emit a
102/// DiagnosticInfoISelFallback for every MachineFunction it resets.
103/// If AbortOnFailedISel is true, abort compilation instead of resetting.
105createResetMachineFunctionPass(bool EmitFallbackDiag, bool AbortOnFailedISel);
106
107/// createCodeGenPrepareLegacyPass - Transform the code to expose more pattern
108/// matching during instruction selection.
110
111/// This pass implements generation of target-specific intrinsics to support
112/// handling of complex number arithmetic
114
115/// AtomicExpandID -- Lowers atomic operations in terms of either cmpxchg
116/// load-linked/store-conditional loops.
117LLVM_ABI extern char &AtomicExpandID;
118
119/// MachineLoopInfo - This pass is a loop analysis pass.
120LLVM_ABI extern char &MachineLoopInfoID;
121
122/// MachineDominators - This pass is a machine dominators analysis pass.
123LLVM_ABI extern char &MachineDominatorsID;
124
125/// MachineDominanaceFrontier - This pass is a machine dominators analysis.
127
128/// MachineRegionInfo - This pass computes SESE regions for machine functions.
130
131/// EdgeBundles analysis - Bundle machine CFG edges.
133
134/// LiveVariables pass - This pass computes the set of blocks in which each
135/// variable is life and sets machine operand kill flags.
136LLVM_ABI extern char &LiveVariablesID;
137
138/// PHIElimination - This pass eliminates machine instruction PHI nodes
139/// by inserting copy instructions. This destroys SSA information, but is the
140/// desired input for some register allocators. This pass is "required" by
141/// these register allocator like this: AU.addRequiredID(PHIEliminationID);
142LLVM_ABI extern char &PHIEliminationID;
143
144/// LiveIntervals - This analysis keeps track of the live ranges of virtual
145/// and physical registers.
146LLVM_ABI extern char &LiveIntervalsID;
147
148/// LiveStacks pass. An analysis keeping track of the liveness of stack slots.
149LLVM_ABI extern char &LiveStacksID;
150
151/// TwoAddressInstruction - This pass reduces two-address instructions to
152/// use two operands. This destroys SSA information but it is desired by
153/// register allocators.
155
156/// ProcessImpicitDefs pass - This pass removes IMPLICIT_DEFs.
158
159/// RegisterCoalescer - This pass merges live ranges to eliminate copies.
160LLVM_ABI extern char &RegisterCoalescerID;
161
162/// MachineScheduler - This pass schedules machine instructions.
163LLVM_ABI extern char &MachineSchedulerID;
164
165/// PostMachineScheduler - This pass schedules machine instructions postRA.
167
168/// SpillPlacement analysis. Suggest optimal placement of spill code between
169/// basic blocks.
170LLVM_ABI extern char &SpillPlacementID;
171
172/// ShrinkWrap pass. Look for the best place to insert save and restore
173// instruction and update the MachineFunctionInfo with that information.
174LLVM_ABI extern char &ShrinkWrapID;
175
176/// LiveRangeShrink pass. Move instruction close to its definition to shrink
177/// the definition's live range.
178LLVM_ABI extern char &LiveRangeShrinkID;
179
180/// Greedy register allocator.
181LLVM_ABI extern char &RAGreedyLegacyID;
182
183/// Basic register allocator.
184LLVM_ABI extern char &RABasicID;
185
186/// VirtRegRewriter pass. Rewrite virtual registers to physical registers as
187/// assigned in VirtRegMap.
188LLVM_ABI extern char &VirtRegRewriterID;
189LLVM_ABI FunctionPass *createVirtRegRewriter(bool ClearVirtRegs = true);
190
191/// UnreachableMachineBlockElimination - This pass removes unreachable
192/// machine basic blocks.
194
195/// DeadMachineInstructionElim - This pass removes dead machine instructions.
197
198/// This pass adds dead/undef flags after analyzing subregister lanes.
199LLVM_ABI extern char &DetectDeadLanesID;
200
201/// This pass perform post-ra machine sink for COPY instructions.
203
204/// This pass adds flow sensitive discriminators.
206
207/// This pass reads flow sensitive profile.
209
210// This pass gives undef values a Pseudo Instruction definition for
211// Instructions to ensure early-clobber is followed when using the greedy
212// register allocator.
213LLVM_ABI extern char &InitUndefID;
214
215/// FastRegisterAllocation Pass - This pass register allocates as fast as
216/// possible. It is best suited for debug code where live ranges are short.
217///
220 bool ClearVirtRegs);
221
222/// BasicRegisterAllocation Pass - This pass implements a degenerate global
223/// register allocator using the basic regalloc framework.
224///
227
228/// Greedy register allocation pass - This pass implements a global register
229/// allocator for optimized builds.
230///
233
234/// PBQPRegisterAllocation Pass - This pass implements the Partitioned Boolean
235/// Quadratic Prograaming (PBQP) based register allocator.
236///
238
239/// PrologEpilogCodeInserter - This pass inserts prolog and epilog code,
240/// and eliminates abstract frame references.
243
244/// ExpandPostRAPseudos - This pass expands pseudo instructions after
245/// register allocation.
247
248/// PostRAHazardRecognizer - This pass runs the post-ra hazard
249/// recognizer.
251
252/// PostRAScheduler - This pass performs post register allocation
253/// scheduling.
254LLVM_ABI extern char &PostRASchedulerID;
255
256/// BranchFolding - This pass performs machine code CFG based
257/// optimizations to delete branches to branches, eliminate branches to
258/// successor blocks (creating fall throughs), and eliminating branches over
259/// branches.
260LLVM_ABI extern char &BranchFolderPassID;
261
262/// BranchRelaxation - This pass replaces branches that need to jump further
263/// than is supported by a branch instruction.
265
266/// MachineFunctionPrinterPass - This pass prints out MachineInstr's.
268
269/// MIRPrintingPass - this pass prints out the LLVM IR using the MIR
270/// serialization format.
271LLVM_ABI extern char &MIRPrintingPassID;
272
273/// TailDuplicate - Duplicate blocks with unconditional branches
274/// into tails of their predecessors.
276
277/// Duplicate blocks with unconditional branches into tails of their
278/// predecessors. Variant that works before register allocation.
280
281/// MachineTraceMetrics - This pass computes critical path and CPU resource
282/// usage in an ensemble of traces.
284
285/// EarlyIfConverter - This pass performs if-conversion on SSA form by
286/// inserting cmov instructions.
288
289/// EarlyIfPredicator - This pass performs if-conversion on SSA form by
290/// predicating if/else block and insert select at the join point.
291LLVM_ABI extern char &EarlyIfPredicatorID;
292
293/// This pass performs instruction combining using trace metrics to estimate
294/// critical-path and resource depth.
295LLVM_ABI extern char &MachineCombinerID;
296
297/// StackSlotColoring - This pass performs stack coloring and merging.
298/// It merges disjoint allocas to reduce the stack size.
300
301/// StackFramePrinter - This pass prints the stack frame layout and variable
302/// mappings.
304
305/// IfConverter - This pass performs machine code if conversion.
306LLVM_ABI extern char &IfConverterID;
307
309createIfConverter(std::function<bool(const MachineFunction &)> Ftor);
310
311/// MachineBlockPlacement - This pass places basic blocks based on branch
312/// probabilities.
314
315/// MachineBlockPlacementStats - This pass collects statistics about the
316/// basic block placement using branch probabilities and block frequency
317/// information.
319
320/// GCLowering Pass - Used by gc.root to perform its default lowering
321/// operations.
323
324/// GCLowering Pass - Used by gc.root to perform its default lowering
325/// operations.
326LLVM_ABI extern char &GCLoweringID;
327
328/// ShadowStackGCLowering - Implements the custom lowering mechanism
329/// used by the shadow stack GC. Only runs on functions which opt in to
330/// the shadow stack collector.
332
333/// ShadowStackGCLowering - Implements the custom lowering mechanism
334/// used by the shadow stack GC.
336
337/// GCMachineCodeAnalysis - Target-independent pass to mark safe points
338/// in machine code. Must be added very late during code generation, just
339/// prior to output, and importantly after all CFG transformations (such as
340/// branch folding).
342
343/// MachineCSE - This pass performs global CSE on machine instructions.
344LLVM_ABI extern char &MachineCSELegacyID;
345
346/// MIRCanonicalizer - This pass canonicalizes MIR by renaming vregs
347/// according to the semantics of the instruction as well as hoists
348/// code.
349LLVM_ABI extern char &MIRCanonicalizerID;
350
351/// ImplicitNullChecks - This pass folds null pointer checks into nearby
352/// memory operations.
353LLVM_ABI extern char &ImplicitNullChecksID;
354
355/// This pass performs loop invariant code motion on machine instructions.
356LLVM_ABI extern char &MachineLICMID;
357
358/// This pass performs loop invariant code motion on machine instructions.
359/// This variant works before register allocation. \see MachineLICMID.
360LLVM_ABI extern char &EarlyMachineLICMID;
361
362/// MachineSinking - This pass performs sinking on machine instructions.
364
365/// MachineCopyPropagation - This pass performs copy propagation on
366/// machine instructions.
368
370createMachineCopyPropagationPass(bool UseCopyInstr);
371
372/// MachineLateInstrsCleanup - This pass removes redundant identical
373/// instructions after register allocation and rematerialization.
375
376/// PeepholeOptimizer - This pass performs peephole optimizations -
377/// like extension and comparison eliminations.
379
380/// OptimizePHIs - This pass optimizes machine instruction PHIs
381/// to take advantage of opportunities created during DAG legalization.
382LLVM_ABI extern char &OptimizePHIsLegacyID;
383
384/// StackSlotColoring - This pass performs stack slot coloring.
385LLVM_ABI extern char &StackSlotColoringID;
386
387/// This pass lays out funclets contiguously.
388LLVM_ABI extern char &FuncletLayoutID;
389
390/// This pass inserts the XRay instrumentation sleds if they are supported by
391/// the target platform.
393
394/// This pass inserts FEntry calls
395LLVM_ABI extern char &FEntryInserterID;
396
397/// This pass implements the "patchable-function" attribute.
398LLVM_ABI extern char &PatchableFunctionID;
399
400/// createStackProtectorPass - This pass adds stack protectors to functions.
401///
403
404/// createMachineVerifierPass - This pass verifies cenerated machine code
405/// instructions for correctness.
406///
408
409/// createDwarfEHPass - This pass mulches exception handling code into a form
410/// adapted to code generation. Required if using dwarf exception handling.
412
413/// createWinEHPass - Prepares personality functions used by MSVC on Windows,
414/// in addition to the Itanium LSDA based personalities.
415LLVM_ABI FunctionPass *createWinEHPass(bool DemoteCatchSwitchPHIOnly = false);
416
417/// createSjLjEHPreparePass - This pass adapts exception handling code to use
418/// the GCC-style builtin setjmp/longjmp (sjlj) to handling EH control flow.
419///
421
422/// createWasmEHPass - This pass adapts exception handling code to use
423/// WebAssembly's exception handling scheme.
425
426/// LocalStackSlotAllocation - This pass assigns local frame indices to stack
427/// slots relative to one another and allocates base registers to access them
428/// when it is estimated by the target to be out of range of normal frame
429/// pointer or stack pointer index addressing.
431
432/// This pass expands pseudo-instructions, reserves registers and adjusts
433/// machine frame information.
434LLVM_ABI extern char &FinalizeISelID;
435
436/// UnpackMachineBundles - This pass unpack machine instruction bundles.
438
440createUnpackMachineBundles(std::function<bool(const MachineFunction &)> Ftor);
441
442/// StackMapLiveness - This pass analyses the register live-out set of
443/// stackmap/patchpoint intrinsics and attaches the calculated information to
444/// the intrinsic for later emission to the StackMap.
445LLVM_ABI extern char &StackMapLivenessID;
446
447// MachineSanitizerBinaryMetadata - appends/finalizes sanitizer binary
448// metadata after llvm SanitizerBinaryMetadata pass.
450
451/// RemoveLoadsIntoFakeUses pass.
453
454/// RemoveRedundantDebugValues pass.
456
457/// MachineCFGPrinter pass.
458LLVM_ABI extern char &MachineCFGPrinterID;
459
460/// LiveDebugValues pass
461LLVM_ABI extern char &LiveDebugValuesID;
462
463/// InterleavedAccess Pass - This pass identifies and matches interleaved
464/// memory accesses to target specific intrinsics.
465///
467
468/// InterleavedLoadCombines Pass - This pass identifies interleaved loads and
469/// combines them into wide loads detectable by InterleavedAccessPass
470///
472
473/// LowerEmuTLS - This pass generates __emutls_[vt].xyz variables for all
474/// TLS variables for the emulated TLS model.
475///
477
478/// This pass lowers the \@llvm.load.relative and \@llvm.objc.* intrinsics to
479/// instructions. This is unsafe to do earlier because a pass may combine the
480/// constant initializer into the load, which may result in an overflowing
481/// evaluation.
483
484/// GlobalMerge - This pass merges internal (by default) globals into structs
485/// to enable reuse of a base pointer by indexed addressing modes.
486/// It can also be configured to focus on size optimizations only.
487///
489createGlobalMergePass(const TargetMachine *TM, unsigned MaximalOffset,
490 bool OnlyOptimizeForSize = false,
491 bool MergeExternalByDefault = false,
492 bool MergeConstantByDefault = false,
493 bool MergeConstAggressiveByDefault = false);
494
495/// This pass splits the stack into a safe stack and an unsafe stack to
496/// protect against stack-based overflow vulnerabilities.
498
499/// This pass detects subregister lanes in a virtual register that are used
500/// independently of other lanes and splits them into separate virtual
501/// registers.
503
504/// This pass is executed POST-RA to collect which physical registers are
505/// preserved by given machine function.
507
508/// Return a MachineFunction pass that identifies call sites
509/// and propagates register usage information of callee to caller
510/// if available with PysicalRegisterUsageInfo pass.
512
513/// This pass performs software pipelining on machine instructions.
514LLVM_ABI extern char &MachinePipelinerID;
515
516/// This pass frees the memory occupied by the MachineFunction.
518
519/// This pass performs merging similar functions globally.
521
522/// This pass performs outlining on machine instructions directly before
523/// printing assembly.
525
526/// This pass expands the reduction intrinsics into sequences of shuffles.
528
529// This pass replaces intrinsics operating on vector operands with calls to
530// the corresponding function in a vector library (e.g., SVML, libmvec).
532
533// Expands large div/rem instructions.
535
536// Expands large div/rem instructions.
538
539// This pass expands memcmp() to load/stores.
541
542/// Creates Break False Dependencies pass. \see BreakFalseDeps.cpp
544
545// This pass expands indirectbr instructions.
547
548/// Creates CFI Fixup pass. \see CFIFixup.cpp
550
551/// Creates CFI Instruction Inserter pass. \see CFIInstrInserter.cpp
553
554// Expands floating point instructions.
556
557/// Creates CFGuard longjmp target identification pass.
558/// \see CFGuardLongjmp.cpp
560
561/// Creates Windows EH Continuation Guard target identification pass.
562/// \see EHContGuardTargets.cpp
564
565/// Create Hardware Loop pass. \see HardwareLoops.cpp
567
568/// This pass inserts pseudo probe annotation for callsite profiling.
570
571/// Create IR Type Promotion pass. \see TypePromotion.cpp
573
574/// Add Flow Sensitive Discriminators. PassNum specifies the
575/// sequence number of this pass (starting from 1).
578
579/// Read Flow Sensitive Profile.
581createMIRProfileLoaderPass(std::string File, std::string RemappingFile,
584
585/// Creates MIR Debugify pass. \see MachineDebugify.cpp
587
588/// Creates MIR Strip Debug pass. \see MachineStripDebug.cpp
589/// If OnlyDebugified is true then it will only strip debug info if it was
590/// added by a Debugify pass. The module will be left unchanged if the debug
591/// info was generated by another source such as clang.
593
594/// Creates MIR Check Debug pass. \see MachineCheckDebugify.cpp
596
597/// The pass fixups statepoint machine instruction to replace usage of
598/// caller saved registers with stack slots.
600
601/// The pass transforms load/store <256 x i32> to AMX load/store intrinsics
602/// or split the data to two <128 x i32>.
604
605/// The pass transforms amx intrinsics to scalar operation if the function has
606/// optnone attribute or it is O0.
608
609/// When learning an eviction policy, extract score(reward) information,
610/// otherwise this does nothing
612
613/// JMC instrument pass.
615
616/// This pass converts conditional moves to conditional jumps when profitable.
618
620
621/// Creates Windows Secure Hot Patch pass. \see WindowsSecureHotPatching.cpp
623
624/// Lowers KCFI operand bundles for indirect calls.
626} // namespace llvm
627
628#endif
#define LLVM_ABI
Definition Compiler.h:213
#define F(x, y, z)
Definition MD5.cpp:55
#define P(N)
FunctionPass class - This class is used to implement most global optimizations.
Definition Pass.h:314
A smart pointer to a reference-counted object that inherits from RefCountedBase or ThreadSafeRefCount...
MachineFunctionPass - This class adapts the FunctionPass interface to allow convenient creation of pa...
ModulePass class - This class is used to implement unstructured interprocedural optimizations and ana...
Definition Pass.h:255
Pass interface - Implemented by all 'passes'.
Definition Pass.h:99
Primary interface to the complete machine description for the target machine.
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition raw_ostream.h:53
The virtual file system interface.
This is an optimization pass for GlobalISel generic memory operations.
LLVM_ABI FunctionPass * createCFIFixup()
Creates CFI Fixup pass.
LLVM_ABI FunctionPass * createIndirectBrExpandPass()
LLVM_ABI FunctionPass * createFastRegisterAllocator()
FastRegisterAllocation Pass - This pass register allocates as fast as possible.
LLVM_ABI char & EarlyMachineLICMID
This pass performs loop invariant code motion on machine instructions.
LLVM_ABI char & GCMachineCodeAnalysisID
GCMachineCodeAnalysis - Target-independent pass to mark safe points in machine code.
LLVM_ABI char & PostRAHazardRecognizerID
PostRAHazardRecognizer - This pass runs the post-ra hazard recognizer.
std::function< bool(const TargetRegisterInfo &TRI, const MachineRegisterInfo &MRI, const Register Reg)> RegAllocFilterFunc
Filter function for register classes during regalloc.
LLVM_ABI char & MachineDominanceFrontierID
MachineDominanaceFrontier - This pass is a machine dominators analysis.
LLVM_ABI char & FEntryInserterID
This pass inserts FEntry calls.
LLVM_ABI char & GCLoweringID
GCLowering Pass - Used by gc.root to perform its default lowering operations.
LLVM_ABI ModulePass * createJMCInstrumenterPass()
JMC instrument pass.
LLVM_ABI char & InitUndefID
LLVM_ABI FunctionPass * createIfConverter(std::function< bool(const MachineFunction &)> Ftor)
LLVM_ABI char & RegisterCoalescerID
RegisterCoalescer - This pass merges live ranges to eliminate copies.
LLVM_ABI char & MIRAddFSDiscriminatorsID
This pass adds flow sensitive discriminators.
LLVM_ABI FunctionPass * createTypePromotionLegacyPass()
Create IR Type Promotion pass.
LLVM_ABI ModulePass * createGlobalMergeFuncPass()
This pass performs merging similar functions globally.
LLVM_ABI FunctionPass * createGreedyRegisterAllocator()
Greedy register allocation pass - This pass implements a global register allocator for optimized buil...
LLVM_ABI MachineFunctionPass * createPrintMIRPass(raw_ostream &OS)
MIRPrinting pass - this pass prints out the LLVM IR into the given stream using the MIR serialization...
LLVM_ABI FunctionPass * createSafeStackPass()
This pass splits the stack into a safe stack and an unsafe stack to protect against stack-based overf...
LLVM_ABI char & MachineCFGPrinterID
MachineCFGPrinter pass.
LLVM_ABI FunctionPass * createSelectOptimizePass()
This pass converts conditional moves to conditional jumps when profitable.
LLVM_ABI FunctionPass * createWasmEHPass()
createWasmEHPass - This pass adapts exception handling code to use WebAssembly's exception handling s...
LLVM_ABI char & FixupStatepointCallerSavedID
The pass fixups statepoint machine instruction to replace usage of caller saved registers with stack ...
LLVM_ABI Pass * createGlobalMergePass(const TargetMachine *TM, unsigned MaximalOffset, bool OnlyOptimizeForSize=false, bool MergeExternalByDefault=false, bool MergeConstantByDefault=false, bool MergeConstAggressiveByDefault=false)
GlobalMerge - This pass merges internal (by default) globals into structs to enable reuse of a base p...
LLVM_ABI MachineFunctionPass * createBasicBlockSectionsPass()
createBasicBlockSections Pass - This pass assigns sections to machine basic blocks and is enabled wit...
LLVM_ABI FunctionPass * createPseudoProbeInserter()
This pass inserts pseudo probe annotation for callsite profiling.
LLVM_ABI char & MachineDominatorsID
MachineDominators - This pass is a machine dominators analysis pass.
LLVM_ABI MachineFunctionPass * createPrologEpilogInserterPass()
LLVM_ABI FunctionPass * createCallBrPass()
LLVM_ABI ModulePass * createStripDebugMachineModulePass(bool OnlyDebugified)
Creates MIR Strip Debug pass.
LLVM_ABI FunctionPass * createX86LowerAMXIntrinsicsPass()
The pass transforms amx intrinsics to scalar operation if the function has optnone attribute or it is...
LLVM_ABI char & TailDuplicateLegacyID
TailDuplicate - Duplicate blocks with unconditional branches into tails of their predecessors.
LLVM_ABI char & LiveStacksID
LiveStacks pass. An analysis keeping track of the liveness of stack slots.
LLVM_ABI char & ExpandPostRAPseudosID
ExpandPostRAPseudos - This pass expands pseudo instructions after register allocation.
LLVM_ABI char & PatchableFunctionID
This pass implements the "patchable-function" attribute.
LLVM_ABI char & PostRASchedulerID
PostRAScheduler - This pass performs post register allocation scheduling.
LLVM_ABI char & RemoveLoadsIntoFakeUsesID
RemoveLoadsIntoFakeUses pass.
LLVM_ABI char & MIRProfileLoaderPassID
This pass reads flow sensitive profile.
LLVM_ABI MachineFunctionPass * createStackFrameLayoutAnalysisPass()
StackFramePrinter pass - This pass prints out the machine function's stack frame to the given stream ...
LLVM_ABI char & MachineSanitizerBinaryMetadataID
LLVM_ABI FunctionPass * createStackProtectorPass()
createStackProtectorPass - This pass adds stack protectors to functions.
LLVM_ABI char & MIRCanonicalizerID
MIRCanonicalizer - This pass canonicalizes MIR by renaming vregs according to the semantics of the in...
LLVM_ABI MachineFunctionPass * createGCEmptyBasicBlocksPass()
createGCEmptyBasicblocksPass - Empty basic blocks (basic blocks without real code) appear as the resu...
LLVM_ABI char & MachineSchedulerID
MachineScheduler - This pass schedules machine instructions.
LLVM_ABI char & PostMachineSchedulerID
PostMachineScheduler - This pass schedules machine instructions postRA.
LLVM_ABI char & PeepholeOptimizerLegacyID
PeepholeOptimizer - This pass performs peephole optimizations - like extension and comparison elimina...
LLVM_ABI char & LiveDebugValuesID
LiveDebugValues pass.
LLVM_ABI char & PrologEpilogCodeInserterID
PrologEpilogCodeInserter - This pass inserts prolog and epilog code, and eliminates abstract frame re...
LLVM_ABI char & EarlyIfConverterLegacyID
EarlyIfConverter - This pass performs if-conversion on SSA form by inserting cmov instructions.
LLVM_ABI MachineFunctionPass * createMachineFunctionSplitterPass()
createMachineFunctionSplitterPass - This pass splits machine functions using profile information.
LLVM_ABI FunctionPass * createMachineVerifierPass(const std::string &Banner)
createMachineVerifierPass - This pass verifies cenerated machine code instructions for correctness.
LLVM_ABI char & SpillPlacementID
SpillPlacement analysis.
LLVM_ABI char & MachineLoopInfoID
MachineLoopInfo - This pass is a loop analysis pass.
LLVM_ABI char & ShadowStackGCLoweringID
ShadowStackGCLowering - Implements the custom lowering mechanism used by the shadow stack GC.
LLVM_ABI char & MachineCombinerID
This pass performs instruction combining using trace metrics to estimate critical-path and resource d...
LLVM_ABI char & ImplicitNullChecksID
ImplicitNullChecks - This pass folds null pointer checks into nearby memory operations.
LLVM_ABI FunctionPass * createMIRAddFSDiscriminatorsPass(sampleprof::FSDiscriminatorPass P)
Add Flow Sensitive Discriminators.
LLVM_ABI ModulePass * createPreISelIntrinsicLoweringPass()
This pass lowers the @llvm.load.relative and @llvm.objc.
LLVM_ABI MachineFunctionPass * createStaticDataSplitterPass()
createStaticDataSplitterPass - This is a machine-function pass that categorizes static data hotness u...
LLVM_ABI char & ShrinkWrapID
ShrinkWrap pass. Look for the best place to insert save and restore.
LLVM_ABI char & MachineLateInstrsCleanupID
MachineLateInstrsCleanup - This pass removes redundant identical instructions after register allocati...
LLVM_ABI char & BranchRelaxationPassID
BranchRelaxation - This pass replaces branches that need to jump further than is supported by a branc...
LLVM_ABI char & UnreachableMachineBlockElimID
UnreachableMachineBlockElimination - This pass removes unreachable machine basic blocks.
LLVM_ABI FunctionPass * createExpandMemCmpLegacyPass()
LLVM_ABI FunctionPass * createRegUsageInfoCollector()
This pass is executed POST-RA to collect which physical registers are preserved by given machine func...
LLVM_ABI FunctionPass * createKCFIPass()
Lowers KCFI operand bundles for indirect calls.
Definition KCFI.cpp:61
LLVM_ABI MachineFunctionPass * createResetMachineFunctionPass(bool EmitFallbackDiag, bool AbortOnFailedISel)
This pass resets a MachineFunction when it has the FailedISel property as if it was just created.
LLVM_ABI FunctionPass * createComplexDeinterleavingPass(const TargetMachine *TM)
This pass implements generation of target-specific intrinsics to support handling of complex number a...
LLVM_ABI char & LiveRangeShrinkID
LiveRangeShrink pass.
LLVM_ABI char & XRayInstrumentationID
This pass inserts the XRay instrumentation sleds if they are supported by the target platform.
LLVM_ABI char & OptimizePHIsLegacyID
OptimizePHIs - This pass optimizes machine instruction PHIs to take advantage of opportunities create...
LLVM_ABI char & MIRPrintingPassID
MIRPrintingPass - this pass prints out the LLVM IR using the MIR serialization format.
LLVM_ABI char & StackMapLivenessID
StackMapLiveness - This pass analyses the register live-out set of stackmap/patchpoint intrinsics and...
LLVM_ABI ModulePass * createStaticDataAnnotatorPass()
createStaticDataAnnotatorPASS - This is a module pass that reads from StaticDataProfileInfoWrapperPas...
LLVM_ABI char & StackFrameLayoutAnalysisPassID
StackFramePrinter - This pass prints the stack frame layout and variable mappings.
LLVM_ABI char & FuncletLayoutID
This pass lays out funclets contiguously.
LLVM_ABI FunctionPass * createCodeGenPrepareLegacyPass()
createCodeGenPrepareLegacyPass - Transform the code to expose more pattern matching during instructio...
LLVM_ABI MachineFunctionPass * createMachineFunctionPrinterPass(raw_ostream &OS, const std::string &Banner="")
MachineFunctionPrinter pass - This pass prints out the machine function to the given stream as a debu...
LLVM_ABI char & RemoveRedundantDebugValuesID
RemoveRedundantDebugValues pass.
LLVM_ABI char & DetectDeadLanesID
This pass adds dead/undef flags after analyzing subregister lanes.
LLVM_ABI char & PostRAMachineSinkingID
This pass perform post-ra machine sink for COPY instructions.
LLVM_ABI FunctionPass * createDwarfEHPass(CodeGenOptLevel OptLevel)
createDwarfEHPass - This pass mulches exception handling code into a form adapted to code generation.
LLVM_ABI FunctionPass * createRegAllocScoringPass()
When learning an eviction policy, extract score(reward) information, otherwise this does nothing.
CodeGenOptLevel
Code generation optimization level.
Definition CodeGen.h:82
LLVM_ABI FunctionPass * createCFGuardLongjmpPass()
Creates CFGuard longjmp target identification pass.
LLVM_ABI char & StackSlotColoringID
StackSlotColoring - This pass performs stack slot coloring.
LLVM_ABI char & EarlyIfPredicatorID
EarlyIfPredicator - This pass performs if-conversion on SSA form by predicating if/else block and ins...
LLVM_ABI ModulePass * createMachineOutlinerPass(RunOutliner RunOutlinerMode)
This pass performs outlining on machine instructions directly before printing assembly.
LLVM_ABI char & MachineRegionInfoPassID
MachineRegionInfo - This pass computes SESE regions for machine functions.
LLVM_ABI FunctionPass * createDefaultPBQPRegisterAllocator()
PBQPRegisterAllocation Pass - This pass implements the Partitioned Boolean Quadratic Prograaming (PBQ...
LLVM_ABI FunctionPass * createExpandLargeDivRemPass()
LLVM_ABI FunctionPass * createInterleavedAccessPass()
InterleavedAccess Pass - This pass identifies and matches interleaved memory accesses to target speci...
LLVM_ABI ModulePass * createLowerEmuTLSPass()
LowerEmuTLS - This pass generates __emutls_[vt].xyz variables for all TLS variables for the emulated ...
LLVM_ABI FunctionPass * createBasicRegisterAllocator()
BasicRegisterAllocation Pass - This pass implements a degenerate global register allocator using the ...
LLVM_ABI char & MachineTraceMetricsID
MachineTraceMetrics - This pass computes critical path and CPU resource usage in an ensemble of trace...
LLVM_ABI char & ProcessImplicitDefsID
ProcessImpicitDefs pass - This pass removes IMPLICIT_DEFs.
LLVM_ABI ModulePass * createCheckDebugMachineModulePass()
Creates MIR Check Debug pass.
LLVM_ABI FunctionPass * createBreakFalseDeps()
Creates Break False Dependencies pass.
LLVM_ABI char & MachinePipelinerID
This pass performs software pipelining on machine instructions.
LLVM_ABI FunctionPass * createMIRProfileLoaderPass(std::string File, std::string RemappingFile, sampleprof::FSDiscriminatorPass P, IntrusiveRefCntPtr< vfs::FileSystem > FS)
Read Flow Sensitive Profile.
LLVM_ABI char & EdgeBundlesWrapperLegacyID
EdgeBundles analysis - Bundle machine CFG edges.
LLVM_ABI char & MachineCSELegacyID
MachineCSE - This pass performs global CSE on machine instructions.
LLVM_ABI FunctionPass * createWinEHPass(bool DemoteCatchSwitchPHIOnly=false)
createWinEHPass - Prepares personality functions used by MSVC on Windows, in addition to the Itanium ...
LLVM_ABI FunctionPass * createUnpackMachineBundles(std::function< bool(const MachineFunction &)> Ftor)
LLVM_ABI char & LiveVariablesID
LiveVariables pass - This pass computes the set of blocks in which each variable is life and sets mac...
LLVM_ABI char & EarlyTailDuplicateLegacyID
Duplicate blocks with unconditional branches into tails of their predecessors.
LLVM_ABI FunctionPass * createExpandReductionsPass()
This pass expands the reduction intrinsics into sequences of shuffles.
LLVM_ABI FunctionPass * createSjLjEHPreparePass(const TargetMachine *TM)
createSjLjEHPreparePass - This pass adapts exception handling code to use the GCC-style builtin setjm...
LLVM_ABI MachineFunctionPass * createBasicBlockPathCloningPass()
LLVM_ABI char & StackColoringLegacyID
StackSlotColoring - This pass performs stack coloring and merging.
LLVM_ABI char & VirtRegRewriterID
VirtRegRewriter pass.
LLVM_ABI FunctionPass * createEHContGuardTargetsPass()
Creates Windows EH Continuation Guard target identification pass.
LLVM_ABI FunctionPass * createGCLoweringPass()
GCLowering Pass - Used by gc.root to perform its default lowering operations.
LLVM_ABI FunctionPass * createReplaceWithVeclibLegacyPass()
LLVM_ABI FunctionPass * createVirtRegRewriter(bool ClearVirtRegs=true)
LLVM_ABI char & FinalizeISelID
This pass expands pseudo-instructions, reserves registers and adjusts machine frame information.
LLVM_ABI FunctionPass * createX86LowerAMXTypePass()
The pass transforms load/store <256 x i32> to AMX load/store intrinsics or split the data to two <128...
LLVM_ABI char & MachineSinkingLegacyID
MachineSinking - This pass performs sinking on machine instructions.
LLVM_ABI FunctionPass * createRegUsageInfoPropPass()
Return a MachineFunction pass that identifies call sites and propagates register usage information of...
LLVM_ABI char & IfConverterID
IfConverter - This pass performs machine code if conversion.
LLVM_ABI FunctionPass * createShadowStackGCLoweringPass()
ShadowStackGCLowering - Implements the custom lowering mechanism used by the shadow stack GC.
LLVM_ABI FunctionPass * createExpandFpPass()
LLVM_ABI char & MachineBlockPlacementID
MachineBlockPlacement - This pass places basic blocks based on branch probabilities.
LLVM_ABI char & TwoAddressInstructionPassID
TwoAddressInstruction - This pass reduces two-address instructions to use two operands.
LLVM_ABI FunctionPass * createAtomicExpandLegacyPass()
AtomicExpandPass - At IR level this pass replace atomic instructions with __atomic_* library calls,...
LLVM_ABI char & LocalStackSlotAllocationID
LocalStackSlotAllocation - This pass assigns local frame indices to stack slots relative to one anoth...
LLVM_ABI char & RAGreedyLegacyID
Greedy register allocator.
LLVM_ABI char & BranchFolderPassID
BranchFolding - This pass performs machine code CFG based optimizations to delete branches to branche...
LLVM_ABI MachineFunctionPass * createMachineCopyPropagationPass(bool UseCopyInstr)
LLVM_ABI char & PHIEliminationID
PHIElimination - This pass eliminates machine instruction PHI nodes by inserting copy instructions.
LLVM_ABI ModulePass * createDebugifyMachineModulePass()
Creates MIR Debugify pass.
LLVM_ABI char & MachineFunctionPrinterPassID
MachineFunctionPrinterPass - This pass prints out MachineInstr's.
LLVM_ABI FunctionPass * createFreeMachineFunctionPass()
This pass frees the memory occupied by the MachineFunction.
LLVM_ABI FunctionPass * createCFIInstrInserter()
Creates CFI Instruction Inserter pass.
LLVM_ABI ModulePass * createWindowsSecureHotPatchingPass()
Creates Windows Secure Hot Patch pass.
LLVM_ABI char & RenameIndependentSubregsID
This pass detects subregister lanes in a virtual register that are used independently of other lanes ...
LLVM_ABI char & MachineLICMID
This pass performs loop invariant code motion on machine instructions.
LLVM_ABI char & MachineBlockPlacementStatsID
MachineBlockPlacementStats - This pass collects statistics about the basic block placement using bran...
LLVM_ABI FunctionPass * createInterleavedLoadCombinePass()
InterleavedLoadCombines Pass - This pass identifies interleaved loads and combines them into wide loa...
LLVM_ABI char & RABasicID
Basic register allocator.
LLVM_ABI char & LiveIntervalsID
LiveIntervals - This analysis keeps track of the live ranges of virtual and physical registers.
LLVM_ABI char & MachineCopyPropagationID
MachineCopyPropagation - This pass performs copy propagation on machine instructions.
LLVM_ABI char & AtomicExpandID
AtomicExpandID – Lowers atomic operations in terms of either cmpxchg load-linked/store-conditional lo...
LLVM_ABI char & DeadMachineInstructionElimID
DeadMachineInstructionElim - This pass removes dead machine instructions.
LLVM_ABI FunctionPass * createHardwareLoopsLegacyPass()
Create Hardware Loop pass.
LLVM_ABI char & UnpackMachineBundlesID
UnpackMachineBundles - This pass unpack machine instruction bundles.
LLVM_ABI FunctionPass * createUnreachableBlockEliminationPass()
createUnreachableBlockEliminationPass - The LLVM code generator does not work well with unreachable b...