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Add FrameSetup MI flags

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127098 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2011-03-05 18:43:04 +00:00
parent 6647b59c92
commit 6dd97471c4
2 changed files with 54 additions and 13 deletions
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34
include/llvm/CodeGen/MachineInstr.h
View File

@ -50,12 +50,21 @@ public:
enum CommentFlag {
ReloadReuse = 0x1
};
enum MIFlag {
NoFlags = 0,
FrameSetup = 1 << 0 // Instruction is used as a part of
// function frame setup code.
};
private:
const TargetInstrDesc *TID; // Instruction descriptor.
uint16_t NumImplicitOps; // Number of implicit operands (which
// are determined at construction time).
uint8_t Flags; // Various bits of additional
// information about machine
// instruction.
uint8_t AsmPrinterFlags; // Various bits of information used by
// the AsmPrinter to emit helpful
// comments. This is *not* semantic
@ -140,7 +149,26 @@ public:
/// setAsmPrinterFlag - Set a flag for the AsmPrinter.
///
void setAsmPrinterFlag(CommentFlag Flag) {
AsmPrinterFlags |= (unsigned short)Flag;
AsmPrinterFlags |= (uint8_t)Flag;
}
/// getFlags - Return the MI flags bitvector.
uint8_t getFlags() const {
return Flags;
}
/// getFlag - Return whether an MI flag is set.
bool getFlag(MIFlag Flag) const {
return Flags & Flag;
}
/// setFlag - Set a MI flag.
void setFlag(MIFlag Flag) {
Flags |= (uint8_t)Flag;
}
void setFlags(unsigned flags) {
Flags = flags;
}
/// clearAsmPrinterFlag - clear specific AsmPrinter flags
@ -152,7 +180,7 @@ public:
/// getDebugLoc - Returns the debug location id of this MachineInstr.
///
DebugLoc getDebugLoc() const { return debugLoc; }
/// getDesc - Returns the target instruction descriptor of this
/// MachineInstr.
const TargetInstrDesc &getDesc() const { return *TID; }

33
lib/CodeGen/MachineInstr.cpp
View File

@ -451,7 +451,8 @@ raw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) {
/// MachineInstr ctor - This constructor creates a dummy MachineInstr with
/// TID NULL and no operands.
MachineInstr::MachineInstr()
: TID(0), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0),
: TID(0), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
MemRefs(0), MemRefsEnd(0),
Parent(0) {
// Make sure that we get added to a machine basicblock
LeakDetector::addGarbageObject(this);
@ -470,7 +471,7 @@ void MachineInstr::addImplicitDefUseOperands() {
/// implicit operands. It reserves space for the number of operands specified by
/// the TargetInstrDesc.
MachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp)
: TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0),
: TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
MemRefs(0), MemRefsEnd(0), Parent(0) {
if (!NoImp)
NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
@ -484,8 +485,8 @@ MachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp)
/// MachineInstr ctor - As above, but with a DebugLoc.
MachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl,
bool NoImp)
: TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0),
Parent(0), debugLoc(dl) {
: TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) {
if (!NoImp)
NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
Operands.reserve(NumImplicitOps + TID->getNumOperands());
@ -499,7 +500,7 @@ MachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl,
/// that the MachineInstr is created and added to the end of the specified
/// basic block.
MachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid)
: TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0),
: TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
MemRefs(0), MemRefsEnd(0), Parent(0) {
assert(MBB && "Cannot use inserting ctor with null basic block!");
NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
@ -514,8 +515,8 @@ MachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid)
///
MachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl,
const TargetInstrDesc &tid)
: TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0),
Parent(0), debugLoc(dl) {
: TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) {
assert(MBB && "Cannot use inserting ctor with null basic block!");
NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
Operands.reserve(NumImplicitOps + TID->getNumOperands());
@ -528,7 +529,7 @@ MachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl,
/// MachineInstr ctor - Copies MachineInstr arg exactly
///
MachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI)
: TID(&MI.getDesc()), NumImplicitOps(0), AsmPrinterFlags(0),
: TID(&MI.getDesc()), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
MemRefs(MI.MemRefs), MemRefsEnd(MI.MemRefsEnd),
Parent(0), debugLoc(MI.getDebugLoc()) {
Operands.reserve(MI.getNumOperands());
@ -538,6 +539,9 @@ MachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI)
addOperand(MI.getOperand(i));
NumImplicitOps = MI.NumImplicitOps;
// Copy all the flags.
Flags = MI.Flags;
// Set parent to null.
Parent = 0;
@ -1417,6 +1421,14 @@ void MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const {
}
bool HaveSemi = false;
if (Flags) {
if (!HaveSemi) OS << ";"; HaveSemi = true;
OS << " flags: ";
if (Flags & FrameSetup)
OS << "FrameSetup";
}
if (!memoperands_empty()) {
if (!HaveSemi) OS << ";"; HaveSemi = true;
@ -1447,13 +1459,14 @@ void MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const {
}
}
// Print debug location information.
if (!debugLoc.isUnknown() && MF) {
if (!HaveSemi) OS << ";";
if (!HaveSemi) OS << ";"; HaveSemi = true;
OS << " dbg:";
printDebugLoc(debugLoc, MF, OS);
}
OS << "\n";
OS << '\n';
}
bool MachineInstr::addRegisterKilled(unsigned IncomingReg,