diff options
Diffstat (limited to 'lib/Target/X86/X86InstructionSelector.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstructionSelector.cpp | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/lib/Target/X86/X86InstructionSelector.cpp b/lib/Target/X86/X86InstructionSelector.cpp index fb93157928922..d0f1b7091da95 100644 --- a/lib/Target/X86/X86InstructionSelector.cpp +++ b/lib/Target/X86/X86InstructionSelector.cpp @@ -39,11 +39,16 @@ using namespace llvm; namespace { +#define GET_GLOBALISEL_PREDICATE_BITSET +#include "X86GenGlobalISel.inc" +#undef GET_GLOBALISEL_PREDICATE_BITSET + class X86InstructionSelector : public InstructionSelector { public: - X86InstructionSelector(const X86Subtarget &STI, + X86InstructionSelector(const X86TargetMachine &TM, const X86Subtarget &STI, const X86RegisterBankInfo &RBI); + void beginFunction(const MachineFunction &MF) override; bool select(MachineInstr &I) const override; private: @@ -70,10 +75,17 @@ private: bool selectTrunc(MachineInstr &I, MachineRegisterInfo &MRI, MachineFunction &MF) const; + const X86TargetMachine &TM; const X86Subtarget &STI; const X86InstrInfo &TII; const X86RegisterInfo &TRI; const X86RegisterBankInfo &RBI; + bool OptForSize; + bool OptForMinSize; + + PredicateBitset AvailableFeatures; + PredicateBitset computeAvailableFeatures(const MachineFunction *MF, + const X86Subtarget *Subtarget) const; #define GET_GLOBALISEL_TEMPORARIES_DECL #include "X86GenGlobalISel.inc" @@ -86,10 +98,12 @@ private: #include "X86GenGlobalISel.inc" #undef GET_GLOBALISEL_IMPL -X86InstructionSelector::X86InstructionSelector(const X86Subtarget &STI, +X86InstructionSelector::X86InstructionSelector(const X86TargetMachine &TM, + const X86Subtarget &STI, const X86RegisterBankInfo &RBI) - : InstructionSelector(), STI(STI), TII(*STI.getInstrInfo()), - TRI(*STI.getRegisterInfo()), RBI(RBI) + : InstructionSelector(), TM(TM), STI(STI), TII(*STI.getInstrInfo()), + TRI(*STI.getRegisterInfo()), RBI(RBI), OptForSize(false), + OptForMinSize(false), AvailableFeatures() #define GET_GLOBALISEL_TEMPORARIES_INIT #include "X86GenGlobalISel.inc" #undef GET_GLOBALISEL_TEMPORARIES_INIT @@ -181,6 +195,12 @@ static bool selectCopy(MachineInstr &I, const TargetInstrInfo &TII, return true; } +void X86InstructionSelector::beginFunction(const MachineFunction &MF) { + OptForSize = MF.getFunction()->optForSize(); + OptForMinSize = MF.getFunction()->optForMinSize(); + AvailableFeatures = computeAvailableFeatures(&MF, &STI); +} + bool X86InstructionSelector::select(MachineInstr &I) const { assert(I.getParent() && "Instruction should be in a basic block!"); assert(I.getParent()->getParent() && "Instruction should be in a function!"); @@ -571,7 +591,8 @@ bool X86InstructionSelector::selectTrunc(MachineInstr &I, } InstructionSelector * -llvm::createX86InstructionSelector(X86Subtarget &Subtarget, +llvm::createX86InstructionSelector(const X86TargetMachine &TM, + X86Subtarget &Subtarget, X86RegisterBankInfo &RBI) { - return new X86InstructionSelector(Subtarget, RBI); + return new X86InstructionSelector(TM, Subtarget, RBI); } |