23#define DEBUG_TYPE "mips-prelegalizer-combiner"
28class MipsPreLegalizerCombinerInfo :
public CombinerInfo {
30 MipsPreLegalizerCombinerInfo()
43 switch (
MI.getOpcode()) {
46 case TargetOpcode::G_MEMCPY_INLINE:
48 case TargetOpcode::G_LOAD:
49 case TargetOpcode::G_SEXTLOAD:
50 case TargetOpcode::G_ZEXTLOAD: {
53 auto MMO = *
MI.memoperands_begin();
57 bool isUnaligned = MMO->getAlign() < MMO->getSize();
75 MipsPreLegalizerCombiner();
85void MipsPreLegalizerCombiner::getAnalysisUsage(
AnalysisUsage &AU)
const {
96bool MipsPreLegalizerCombiner::runOnMachineFunction(
MachineFunction &MF) {
98 MachineFunctionProperties::Property::FailedISel))
100 auto *TPC = &getAnalysis<TargetPassConfig>();
101 MipsPreLegalizerCombinerInfo PCInfo;
103 return C.combineMachineInstrs(MF,
nullptr);
106char MipsPreLegalizerCombiner::ID = 0;
108 "Combine Mips machine instrs before legalization",
false,
117 return new MipsPreLegalizerCombiner();
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.
Contains matchers for matching SSA Machine Instructions.
Combine Mips machine instrs before legalization
#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.
Represent the analysis usage information of a pass.
AnalysisUsage & addRequired()
void setPreservesCFG()
This function should be called by the pass, iff they do not:
bool tryCombineExtendingLoads(MachineInstr &MI)
If MI is extend that consumes the result of a load, try to combine it.
bool tryEmitMemcpyInline(MachineInstr &MI)
Emit loads and stores that perform the given memcpy.
FunctionPass class - This class is used to implement most global optimizations.
Abstract class that contains various methods for clients to notify about changes.
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 MachineFunctionProperties & getProperties() const
Get the function properties.
Helper class to build MachineInstr.
Representation of each machine instruction.
bool systemSupportsUnalignedAccess() const
Does the system support unaligned memory access.
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.
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.
void initializeMipsPreLegalizerCombinerPass(PassRegistry &)
constexpr bool isPowerOf2_64(uint64_t Value)
Return true if the argument is a power of two > 0 (64 bit edition.)
FunctionPass * createMipsPreLegalizeCombiner()
void getSelectionDAGFallbackAnalysisUsage(AnalysisUsage &AU)
Modify analysis usage so it preserves passes required for the SelectionDAG fallback.
auto instrs(const MachineBasicBlock &BB)