#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
-#define GET_INSTRINFO_CTOR
+
+using namespace llvm;
+
+#define DEBUG_TYPE "hexagon-instrinfo"
+
+#define GET_INSTRINFO_CTOR_DTOR
#define GET_INSTRMAP_INFO
#include "HexagonGenInstrInfo.inc"
#include "HexagonGenDFAPacketizer.inc"
-using namespace llvm;
-
///
/// Constants for Hexagon instructions.
///
const int Hexagon_MEMB_AUTOINC_MAX = 7;
const int Hexagon_MEMB_AUTOINC_MIN = -8;
+// Pin the vtable to this file.
+void HexagonInstrInfo::anchor() {}
HexagonInstrInfo::HexagonInstrInfo(HexagonSubtarget &ST)
: HexagonGenInstrInfo(Hexagon::ADJCALLSTACKDOWN, Hexagon::ADJCALLSTACKUP),
- RI(ST, *this), Subtarget(ST) {
+ RI(ST), Subtarget(ST) {
}
regPos = 1;
}
- if (FBB == 0) {
+ if (!FBB) {
if (Cond.empty()) {
// Due to a bug in TailMerging/CFG Optimization, we need to add a
// special case handling of a predicated jump followed by an
if (isPredicated(Term) && !AnalyzeBranch(MBB, NewTBB, NewFBB, Cond,
false)) {
MachineBasicBlock *NextBB =
- llvm::next(MachineFunction::iterator(&MBB));
+ std::next(MachineFunction::iterator(&MBB));
if (NewTBB == NextBB) {
ReverseBranchCondition(Cond);
RemoveBranch(MBB);
- return InsertBranch(MBB, TBB, 0, Cond, DL);
+ return InsertBranch(MBB, TBB, nullptr, Cond, DL);
}
}
BuildMI(&MBB, DL, get(BOpc)).addMBB(TBB);
MachineBasicBlock *&FBB,
SmallVectorImpl<MachineOperand> &Cond,
bool AllowModify) const {
- TBB = NULL;
- FBB = NULL;
+ TBB = nullptr;
+ FBB = nullptr;
// If the block has no terminators, it just falls into the block after it.
MachineBasicBlock::instr_iterator I = MBB.instr_end();
// Get the last instruction in the block.
MachineInstr *LastInst = I;
- MachineInstr *SecondLastInst = NULL;
+ MachineInstr *SecondLastInst = nullptr;
// Find one more terminator if present.
do {
if (&*I != LastInst && !I->isBundle() && isUnpredicatedTerminator(I)) {
const SmallVectorImpl<unsigned> &Ops,
int FI) const {
// Hexagon_TODO: Implement.
- return(0);
-}
-
-MachineInstr*
-HexagonInstrInfo::emitFrameIndexDebugValue(MachineFunction &MF,
- int FrameIx, uint64_t Offset,
- const MDNode *MDPtr,
- DebugLoc DL) const {
- MachineInstrBuilder MIB = BuildMI(MF, DL, get(Hexagon::DBG_VALUE))
- .addImm(0).addImm(Offset).addMetadata(MDPtr);
- return &*MIB;
+ return nullptr;
}
unsigned HexagonInstrInfo::createVR(MachineFunction* MF, MVT VT) const {
return MI->getDesc().isBranch();
}
-bool HexagonInstrInfo::isNewValueStore(const MachineInstr *MI) const {
- switch (MI->getOpcode()) {
- default: return false;
- // Store Byte
- case Hexagon::STrib_nv_V4:
- case Hexagon::STrib_indexed_nv_V4:
- case Hexagon::STrib_indexed_shl_nv_V4:
- case Hexagon::STrib_shl_nv_V4:
- case Hexagon::STb_GP_nv_V4:
- case Hexagon::POST_STbri_nv_V4:
- case Hexagon::STrib_cPt_nv_V4:
- case Hexagon::STrib_cdnPt_nv_V4:
- case Hexagon::STrib_cNotPt_nv_V4:
- case Hexagon::STrib_cdnNotPt_nv_V4:
- case Hexagon::STrib_indexed_cPt_nv_V4:
- case Hexagon::STrib_indexed_cdnPt_nv_V4:
- case Hexagon::STrib_indexed_cNotPt_nv_V4:
- case Hexagon::STrib_indexed_cdnNotPt_nv_V4:
- case Hexagon::STrib_indexed_shl_cPt_nv_V4:
- case Hexagon::STrib_indexed_shl_cdnPt_nv_V4:
- case Hexagon::STrib_indexed_shl_cNotPt_nv_V4:
- case Hexagon::STrib_indexed_shl_cdnNotPt_nv_V4:
- case Hexagon::POST_STbri_cPt_nv_V4:
- case Hexagon::POST_STbri_cdnPt_nv_V4:
- case Hexagon::POST_STbri_cNotPt_nv_V4:
- case Hexagon::POST_STbri_cdnNotPt_nv_V4:
- case Hexagon::STb_GP_cPt_nv_V4:
- case Hexagon::STb_GP_cNotPt_nv_V4:
- case Hexagon::STb_GP_cdnPt_nv_V4:
- case Hexagon::STb_GP_cdnNotPt_nv_V4:
- case Hexagon::STrib_abs_nv_V4:
- case Hexagon::STrib_abs_cPt_nv_V4:
- case Hexagon::STrib_abs_cdnPt_nv_V4:
- case Hexagon::STrib_abs_cNotPt_nv_V4:
- case Hexagon::STrib_abs_cdnNotPt_nv_V4:
-
- // Store Halfword
- case Hexagon::STrih_nv_V4:
- case Hexagon::STrih_indexed_nv_V4:
- case Hexagon::STrih_indexed_shl_nv_V4:
- case Hexagon::STrih_shl_nv_V4:
- case Hexagon::STh_GP_nv_V4:
- case Hexagon::POST_SThri_nv_V4:
- case Hexagon::STrih_cPt_nv_V4:
- case Hexagon::STrih_cdnPt_nv_V4:
- case Hexagon::STrih_cNotPt_nv_V4:
- case Hexagon::STrih_cdnNotPt_nv_V4:
- case Hexagon::STrih_indexed_cPt_nv_V4:
- case Hexagon::STrih_indexed_cdnPt_nv_V4:
- case Hexagon::STrih_indexed_cNotPt_nv_V4:
- case Hexagon::STrih_indexed_cdnNotPt_nv_V4:
- case Hexagon::STrih_indexed_shl_cPt_nv_V4:
- case Hexagon::STrih_indexed_shl_cdnPt_nv_V4:
- case Hexagon::STrih_indexed_shl_cNotPt_nv_V4:
- case Hexagon::STrih_indexed_shl_cdnNotPt_nv_V4:
- case Hexagon::POST_SThri_cPt_nv_V4:
- case Hexagon::POST_SThri_cdnPt_nv_V4:
- case Hexagon::POST_SThri_cNotPt_nv_V4:
- case Hexagon::POST_SThri_cdnNotPt_nv_V4:
- case Hexagon::STh_GP_cPt_nv_V4:
- case Hexagon::STh_GP_cNotPt_nv_V4:
- case Hexagon::STh_GP_cdnPt_nv_V4:
- case Hexagon::STh_GP_cdnNotPt_nv_V4:
- case Hexagon::STrih_abs_nv_V4:
- case Hexagon::STrih_abs_cPt_nv_V4:
- case Hexagon::STrih_abs_cdnPt_nv_V4:
- case Hexagon::STrih_abs_cNotPt_nv_V4:
- case Hexagon::STrih_abs_cdnNotPt_nv_V4:
-
- // Store Word
- case Hexagon::STriw_nv_V4:
- case Hexagon::STriw_indexed_nv_V4:
- case Hexagon::STriw_indexed_shl_nv_V4:
- case Hexagon::STriw_shl_nv_V4:
- case Hexagon::STw_GP_nv_V4:
- case Hexagon::POST_STwri_nv_V4:
- case Hexagon::STriw_cPt_nv_V4:
- case Hexagon::STriw_cdnPt_nv_V4:
- case Hexagon::STriw_cNotPt_nv_V4:
- case Hexagon::STriw_cdnNotPt_nv_V4:
- case Hexagon::STriw_indexed_cPt_nv_V4:
- case Hexagon::STriw_indexed_cdnPt_nv_V4:
- case Hexagon::STriw_indexed_cNotPt_nv_V4:
- case Hexagon::STriw_indexed_cdnNotPt_nv_V4:
- case Hexagon::STriw_indexed_shl_cPt_nv_V4:
- case Hexagon::STriw_indexed_shl_cdnPt_nv_V4:
- case Hexagon::STriw_indexed_shl_cNotPt_nv_V4:
- case Hexagon::STriw_indexed_shl_cdnNotPt_nv_V4:
- case Hexagon::POST_STwri_cPt_nv_V4:
- case Hexagon::POST_STwri_cdnPt_nv_V4:
- case Hexagon::POST_STwri_cNotPt_nv_V4:
- case Hexagon::POST_STwri_cdnNotPt_nv_V4:
- case Hexagon::STw_GP_cPt_nv_V4:
- case Hexagon::STw_GP_cNotPt_nv_V4:
- case Hexagon::STw_GP_cdnPt_nv_V4:
- case Hexagon::STw_GP_cdnNotPt_nv_V4:
- case Hexagon::STriw_abs_nv_V4:
- case Hexagon::STriw_abs_cPt_nv_V4:
- case Hexagon::STriw_abs_cdnPt_nv_V4:
- case Hexagon::STriw_abs_cNotPt_nv_V4:
- case Hexagon::STriw_abs_cdnNotPt_nv_V4:
- return true;
- }
-}
-
bool HexagonInstrInfo::isNewValueInst(const MachineInstr *MI) const {
if (isNewValueJump(MI))
return true;
}
}
+// New Value Store instructions.
+bool HexagonInstrInfo::isNewValueStore(const MachineInstr *MI) const {
+ const uint64_t F = MI->getDesc().TSFlags;
+
+ return ((F >> HexagonII::NVStorePos) & HexagonII::NVStoreMask);
+}
+
+bool HexagonInstrInfo::isNewValueStore(unsigned Opcode) const {
+ const uint64_t F = get(Opcode).TSFlags;
+
+ return ((F >> HexagonII::NVStorePos) & HexagonII::NVStoreMask);
+}
int HexagonInstrInfo::
getMatchingCondBranchOpcode(int Opc, bool invertPredicate) const {
return ((F >> HexagonII::PredicatedNewPos) & HexagonII::PredicatedNewMask);
}
+// Returns true, if a ST insn can be promoted to a new-value store.
+bool HexagonInstrInfo::mayBeNewStore(const MachineInstr *MI) const {
+ const HexagonRegisterInfo& QRI = getRegisterInfo();
+ const uint64_t F = MI->getDesc().TSFlags;
+
+ return ((F >> HexagonII::mayNVStorePos) &
+ HexagonII::mayNVStoreMask &
+ QRI.Subtarget.hasV4TOps());
+}
+
bool
HexagonInstrInfo::DefinesPredicate(MachineInstr *MI,
std::vector<MachineOperand> &Pred) const {
bool HexagonInstrInfo::
isMemOp(const MachineInstr *MI) const {
+// return MI->getDesc().mayLoad() && MI->getDesc().mayStore();
+
switch (MI->getOpcode())
{
default: return false;
(isPredicated(MI) && isPredicatedNew(MI)));
}
+// Returns the most basic instruction for the .new predicated instructions and
+// new-value stores.
+// For example, all of the following instructions will be converted back to the
+// same instruction:
+// 1) if (p0.new) memw(R0+#0) = R1.new --->
+// 2) if (p0) memw(R0+#0)= R1.new -------> if (p0) memw(R0+#0) = R1
+// 3) if (p0.new) memw(R0+#0) = R1 --->
+//
+
+int HexagonInstrInfo::GetDotOldOp(const int opc) const {
+ int NewOp = opc;
+ if (isPredicated(NewOp) && isPredicatedNew(NewOp)) { // Get predicate old form
+ NewOp = Hexagon::getPredOldOpcode(NewOp);
+ assert(NewOp >= 0 &&
+ "Couldn't change predicate new instruction to its old form.");
+ }
+
+ if (isNewValueStore(NewOp)) { // Convert into non-new-value format
+ NewOp = Hexagon::getNonNVStore(NewOp);
+ assert(NewOp >= 0 && "Couldn't change new-value store to its old form.");
+ }
+ return NewOp;
+}
+
+// Return the new value instruction for a given store.
+int HexagonInstrInfo::GetDotNewOp(const MachineInstr* MI) const {
+ int NVOpcode = Hexagon::getNewValueOpcode(MI->getOpcode());
+ if (NVOpcode >= 0) // Valid new-value store instruction.
+ return NVOpcode;
+
+ switch (MI->getOpcode()) {
+ default: llvm_unreachable("Unknown .new type");
+ // store new value byte
+ case Hexagon::STrib_shl_V4:
+ return Hexagon::STrib_shl_nv_V4;
+
+ case Hexagon::STrih_shl_V4:
+ return Hexagon::STrih_shl_nv_V4;
+
+ case Hexagon::STriw_f:
+ return Hexagon::STriw_nv_V4;
+
+ case Hexagon::STriw_indexed_f:
+ return Hexagon::STriw_indexed_nv_V4;
+
+ case Hexagon::STriw_shl_V4:
+ return Hexagon::STriw_shl_nv_V4;
+
+ }
+ return 0;
+}
+
// Return .new predicate version for an instruction.
int HexagonInstrInfo::GetDotNewPredOp(MachineInstr *MI,
const MachineBranchProbabilityInfo
DFAPacketizer *HexagonInstrInfo::
CreateTargetScheduleState(const TargetMachine *TM,
const ScheduleDAG *DAG) const {
- const InstrItineraryData *II = TM->getInstrItineraryData();
+ const InstrItineraryData *II =
+ TM->getSubtargetImpl()->getInstrItineraryData();
return TM->getSubtarget<HexagonGenSubtargetInfo>().createDFAPacketizer(II);
}
return false;
// Terminators and labels can't be scheduled around.
- if (MI->getDesc().isTerminator() || MI->isLabel() || MI->isInlineAsm())
+ if (MI->getDesc().isTerminator() || MI->isPosition() || MI->isInlineAsm())
return true;
return false;
return true;
if (MI->getDesc().mayLoad() || MI->getDesc().mayStore()) {
- // Check addressing mode and retreive non-ext equivalent instruction.
+ // Check addressing mode and retrieve non-ext equivalent instruction.
switch (getAddrMode(MI)) {
case HexagonII::Absolute :
return NonExtOpcode;
if (MI->getDesc().mayLoad() || MI->getDesc().mayStore()) {
- // Check addressing mode and retreive non-ext equivalent instruction.
+ // Check addressing mode and retrieve non-ext equivalent instruction.
switch (getAddrMode(MI)) {
case HexagonII::Absolute :
return Hexagon::getBasedWithImmOffset(MI->getOpcode());
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