RISCVO0PreLegalizerCombiner.cpp Source File (original) (raw)

26#define GET_GICOMBINER_DEPS

27#include "RISCVGenO0PreLegalizeGICombiner.inc"

28#undef GET_GICOMBINER_DEPS

30#define DEBUG_TYPE "riscv-O0-prelegalizer-combiner"

32using namespace llvm;

34namespace {

35#define GET_GICOMBINER_TYPES

36#include "RISCVGenO0PreLegalizeGICombiner.inc"

37#undef GET_GICOMBINER_TYPES

39class RISCVO0PreLegalizerCombinerImpl : public Combiner {

40protected:

42 const RISCVO0PreLegalizerCombinerImplRuleConfig &RuleConfig;

45public:

46 RISCVO0PreLegalizerCombinerImpl(

49 const RISCVO0PreLegalizerCombinerImplRuleConfig &RuleConfig,

52 static const char *getName() { return "RISCVO0PreLegalizerCombiner"; }

54 bool tryCombineAll(MachineInstr &I) const override;

56private:

57#define GET_GICOMBINER_CLASS_MEMBERS

58#include "RISCVGenO0PreLegalizeGICombiner.inc"

59#undef GET_GICOMBINER_CLASS_MEMBERS

60};

62#define GET_GICOMBINER_IMPL

63#include "RISCVGenO0PreLegalizeGICombiner.inc"

64#undef GET_GICOMBINER_IMPL

66RISCVO0PreLegalizerCombinerImpl::RISCVO0PreLegalizerCombinerImpl(

69 const RISCVO0PreLegalizerCombinerImplRuleConfig &RuleConfig,

71 : Combiner(MF, CInfo, TPC, &VT, CSEInfo),

72 Helper(Observer, B, true, &VT), RuleConfig(RuleConfig),

73 STI(STI),

75#include "RISCVGenO0PreLegalizeGICombiner.inc"

77{

78}

84public:

85 static char ID;

87 RISCVO0PreLegalizerCombiner();

90 return "RISCVO0PreLegalizerCombiner";

91 }

97private:

98 RISCVO0PreLegalizerCombinerImplRuleConfig RuleConfig;

99};

100}

101

102void RISCVO0PreLegalizerCombiner::getAnalysisUsage(AnalysisUsage &AU) const {

109}

110

111RISCVO0PreLegalizerCombiner::RISCVO0PreLegalizerCombiner()

113 if (!RuleConfig.parseCommandLineOption())

115}

116

117bool RISCVO0PreLegalizerCombiner::runOnMachineFunction(MachineFunction &MF) {

119 return false;

120 auto &TPC = getAnalysis();

121

124 &getAnalysis().get(MF);

125

127

128 CombinerInfo CInfo( true, false,

129 nullptr, false,

130 F.hasOptSize(), F.hasMinSize());

131

132

133 CInfo.MaxIterations = 1;

134

135 RISCVO0PreLegalizerCombinerImpl Impl(MF, CInfo, &TPC, *VT,

136 nullptr, RuleConfig, ST);

137 return Impl.combineMachineInstrs();

138}

139

140char RISCVO0PreLegalizerCombiner::ID = 0;

142 "Combine RISC-V machine instrs before legalization",

143 false, false)

148 "Combine RISC-V machine instrs before legalization", false,

150

152 return new RISCVO0PreLegalizerCombiner();

153}

#define GET_GICOMBINER_CONSTRUCTOR_INITS

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.

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.

LLVM_ABI void setPreservesCFG()

This function should be called by the pass, iff they do not:

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<GISelValueTrackingInfoAnal...

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...

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.

virtual StringRef getPassName() const

getPassName - Return a nice clean name for a pass.

Target-Independent Code Generator Pass Configuration Options.

unsigned ID

LLVM IR allows to use arbitrary numbers as calling convention identifiers.

This is an optimization pass for GlobalISel generic memory operations.

LLVM_ABI void report_fatal_error(Error Err, bool gen_crash_diag=true)

FunctionPass * createRISCVO0PreLegalizerCombiner()

Definition RISCVO0PreLegalizerCombiner.cpp:151

LLVM_ABI void getSelectionDAGFallbackAnalysisUsage(AnalysisUsage &AU)

Modify analysis usage so it preserves passes required for the SelectionDAG fallback.