30#define DEBUG_TYPE "aarch64-O0-prelegalizer-combiner"
33using namespace MIPatternMatch;
44#define AARCH64O0PRELEGALIZERCOMBINERHELPER_GENCOMBINERHELPER_DEPS
45#include "AArch64GenO0PreLegalizeGICombiner.inc"
46#undef AARCH64O0PRELEGALIZERCOMBINERHELPER_GENCOMBINERHELPER_DEPS
49#define AARCH64O0PRELEGALIZERCOMBINERHELPER_GENCOMBINERHELPER_H
50#include "AArch64GenO0PreLegalizeGICombiner.inc"
51#undef AARCH64O0PRELEGALIZERCOMBINERHELPER_GENCOMBINERHELPER_H
53class AArch64O0PreLegalizerCombinerInfo :
public CombinerInfo {
56 AArch64GenO0PreLegalizerCombinerHelperRuleConfig GeneratedRuleCfg;
59 AArch64O0PreLegalizerCombinerInfo(
bool EnableOpt,
bool OptSize,
bool MinSize,
63 nullptr, EnableOpt, OptSize, MinSize),
65 if (!GeneratedRuleCfg.parseCommandLineOption())
77 AArch64GenO0PreLegalizerCombinerHelper
Generated(GeneratedRuleCfg, Helper);
82 unsigned Opc =
MI.getOpcode();
84 case TargetOpcode::G_CONCAT_VECTORS:
85 return Helper.tryCombineConcatVectors(
MI);
86 case TargetOpcode::G_SHUFFLE_VECTOR:
87 return Helper.tryCombineShuffleVector(
MI);
88 case TargetOpcode::G_MEMCPY_INLINE:
89 return Helper.tryEmitMemcpyInline(
MI);
90 case TargetOpcode::G_MEMCPY:
91 case TargetOpcode::G_MEMMOVE:
92 case TargetOpcode::G_MEMSET: {
96 if (Helper.tryCombineMemCpyFamily(
MI, MaxLen))
98 if (Opc == TargetOpcode::G_MEMSET)
107#define AARCH64O0PRELEGALIZERCOMBINERHELPER_GENCOMBINERHELPER_CPP
108#include "AArch64GenO0PreLegalizeGICombiner.inc"
109#undef AARCH64O0PRELEGALIZERCOMBINERHELPER_GENCOMBINERHELPER_CPP
118 AArch64O0PreLegalizerCombiner();
121 return "AArch64O0PreLegalizerCombiner";
130void AArch64O0PreLegalizerCombiner::getAnalysisUsage(
AnalysisUsage &AU)
const {
139AArch64O0PreLegalizerCombiner::AArch64O0PreLegalizerCombiner()
144bool AArch64O0PreLegalizerCombiner::runOnMachineFunction(
MachineFunction &MF) {
146 MachineFunctionProperties::Property::FailedISel))
148 auto &TPC = getAnalysis<TargetPassConfig>();
151 GISelKnownBits *KB = &getAnalysis<GISelKnownBitsAnalysis>().get(MF);
152 AArch64O0PreLegalizerCombinerInfo PCInfo(
153 false,
F.hasOptSize(),
F.hasMinSize(), KB,
nullptr );
155 return C.combineMachineInstrs(MF,
nullptr );
158char AArch64O0PreLegalizerCombiner::ID = 0;
160 "Combine AArch64 machine instrs before legalization",
171 return new AArch64O0PreLegalizerCombiner();
Combine AArch64 machine instrs before legalization
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
This contains common combine transformations that may be used in a combine pass,or by the target else...
Interface for Targets to specify which operations are combined how and when.
This contains common code to drive combines.
Provides analysis for querying information about KnownBits during GISel passes.
Contains matchers for matching SSA Machine Instructions.
This file declares the MachineIRBuilder class.
#define INITIALIZE_PASS_DEPENDENCY(depName)
#define INITIALIZE_PASS_END(passName, arg, name, cfg, analysis)
#define INITIALIZE_PASS_BEGIN(passName, arg, name, cfg, analysis)
Target-Independent Code Generator Pass Configuration Options pass.
AArch64O0PreLegalizerCombinerHelperState(CombinerHelper &Helper)
Represent the analysis usage information of a pass.
AnalysisUsage & addRequired()
AnalysisUsage & addPreserved()
Add the specified Pass class to the set of analyses preserved by this pass.
void setPreservesCFG()
This function should be called by the pass, iff they do not:
virtual bool combine(GISelChangeObserver &Observer, MachineInstr &MI, MachineIRBuilder &B) const =0
Attempt to combine instructions using MI as the root.
FunctionPass class - This class is used to implement most global optimizations.
The actual analysis pass wrapper.
Abstract class that contains various methods for clients to notify about changes.
To use KnownBitsInfo analysis in a pass, KnownBitsInfo &Info = getAnalysis<GISelKnownBitsInfoAnalysis...
DominatorTree Class - Concrete subclass of DominatorTreeBase that is used to compute a normal dominat...
MachineFunctionPass - This class adapts the FunctionPass interface to allow convenient creation of pa...
void getAnalysisUsage(AnalysisUsage &AU) const override
getAnalysisUsage - Subclasses that override getAnalysisUsage must call this.
virtual bool runOnMachineFunction(MachineFunction &MF)=0
runOnMachineFunction - This method must be overloaded to perform the desired machine code transformat...
bool hasProperty(Property P) const
Function & getFunction()
Return the LLVM function that this machine code represents.
const MachineFunctionProperties & getProperties() const
Get the function properties.
Helper class to build MachineInstr.
Representation of each machine instruction.
static PassRegistry * getPassRegistry()
getPassRegistry - Access the global registry object, which is automatically initialized at applicatio...
virtual StringRef getPassName() const
getPassName - Return a nice clean name for a pass.
StringRef - Represent a constant reference to a string, i.e.
Target-Independent Code Generator Pass Configuration Options.
bool tryEmitBZero(MachineInstr &MI, MachineIRBuilder &MIRBuilder, bool MinSize)
Replace a G_MEMSET with a value of 0 with a G_BZERO instruction if it is supported and beneficial to ...
unsigned ID
LLVM IR allows to use arbitrary numbers as calling convention identifiers.
@ C
The default llvm calling convention, compatible with C.
This is an optimization pass for GlobalISel generic memory operations.
FunctionPass * createAArch64O0PreLegalizerCombiner()
void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
void getSelectionDAGFallbackAnalysisUsage(AnalysisUsage &AU)
Modify analysis usage so it preserves passes required for the SelectionDAG fallback.
auto instrs(const MachineBasicBlock &BB)
void initializeAArch64O0PreLegalizerCombinerPass(PassRegistry &)