31#define GET_GICOMBINER_DEPS
32#include "AArch64GenO0PreLegalizeGICombiner.inc"
33#undef GET_GICOMBINER_DEPS
35#define DEBUG_TYPE "aarch64-O0-prelegalizer-combiner"
38using namespace MIPatternMatch;
40#define GET_GICOMBINER_TYPES
41#include "AArch64GenO0PreLegalizeGICombiner.inc"
42#undef GET_GICOMBINER_TYPES
44class AArch64O0PreLegalizerCombinerImpl :
public Combiner {
48 const AArch64O0PreLegalizerCombinerImplRuleConfig &RuleConfig;
52 AArch64O0PreLegalizerCombinerImpl(
55 const AArch64O0PreLegalizerCombinerImplRuleConfig &RuleConfig,
58 static const char *
getName() {
return "AArch64O0PreLegalizerCombiner"; }
65#define GET_GICOMBINER_CLASS_MEMBERS
66#include "AArch64GenO0PreLegalizeGICombiner.inc"
67#undef GET_GICOMBINER_CLASS_MEMBERS
70#define GET_GICOMBINER_IMPL
71#include "AArch64GenO0PreLegalizeGICombiner.inc"
72#undef GET_GICOMBINER_IMPL
74AArch64O0PreLegalizerCombinerImpl::AArch64O0PreLegalizerCombinerImpl(
77 const AArch64O0PreLegalizerCombinerImplRuleConfig &RuleConfig,
79 :
Combiner(MF, CInfo, TPC, &KB, CSEInfo),
80 Helper(Observer,
B,
true, &KB), RuleConfig(RuleConfig),
83#include
"AArch64GenO0PreLegalizeGICombiner.inc"
88bool AArch64O0PreLegalizerCombinerImpl::tryCombineAll(
MachineInstr &
MI)
const {
89 if (tryCombineAllImpl(
MI))
92 unsigned Opc =
MI.getOpcode();
94 case TargetOpcode::G_SHUFFLE_VECTOR:
95 return Helper.tryCombineShuffleVector(
MI);
96 case TargetOpcode::G_MEMCPY_INLINE:
97 return Helper.tryEmitMemcpyInline(
MI);
98 case TargetOpcode::G_MEMCPY:
99 case TargetOpcode::G_MEMMOVE:
100 case TargetOpcode::G_MEMSET: {
102 unsigned MaxLen = 32;
104 if (Helper.tryCombineMemCpyFamily(
MI, MaxLen))
106 if (Opc == TargetOpcode::G_MEMSET)
122 AArch64O0PreLegalizerCombiner();
125 return "AArch64O0PreLegalizerCombiner";
133 AArch64O0PreLegalizerCombinerImplRuleConfig RuleConfig;
137void AArch64O0PreLegalizerCombiner::getAnalysisUsage(
AnalysisUsage &AU)
const {
146AArch64O0PreLegalizerCombiner::AArch64O0PreLegalizerCombiner()
150 if (!RuleConfig.parseCommandLineOption())
154bool AArch64O0PreLegalizerCombiner::runOnMachineFunction(
MachineFunction &MF) {
156 MachineFunctionProperties::Property::FailedISel))
158 auto &TPC = getAnalysis<TargetPassConfig>();
161 GISelKnownBits *KB = &getAnalysis<GISelKnownBitsAnalysis>().get(MF);
167 F.hasOptSize(),
F.hasMinSize());
170 CInfo.MaxIterations = 1;
172 AArch64O0PreLegalizerCombinerImpl Impl(MF, CInfo, &TPC, *KB,
173 nullptr, RuleConfig, ST);
174 return Impl.combineMachineInstrs();
177char AArch64O0PreLegalizerCombiner::ID = 0;
179 "Combine AArch64 machine instrs before legalization",
190 return new AArch64O0PreLegalizerCombiner();
#define GET_GICOMBINER_CONSTRUCTOR_INITS
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...
Option class for Targets to specify which operations are combined how and when.
This contains the base class for all Combiners generated by TableGen.
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)
static StringRef getName(Value *V)
Target-Independent Code Generator Pass Configuration Options pass.
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 tryCombineAll(MachineInstr &I) const =0
FunctionPass class - This class is used to implement most global optimizations.
The actual analysis pass wrapper.
To use KnownBitsInfo analysis in a pass, KnownBitsInfo &Info = getAnalysis<GISelKnownBitsInfoAnalysis...
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
const TargetSubtargetInfo & getSubtarget() const
getSubtarget - Return the subtarget for which this machine code is being compiled.
Function & getFunction()
Return the LLVM function that this machine code represents.
const MachineFunctionProperties & getProperties() const
Get the function properties.
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.
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 &)