#include "llvm/ADT/ilist.h"
#include "llvm/ADT/ilist_node.h"
#include "llvm/CodeGen/MachineOperand.h"
-#include "llvm/InlineAsm.h"
+#include "llvm/IR/InlineAsm.h"
#include "llvm/MC/MCInstrDesc.h"
+#include "llvm/Support/ArrayRecycler.h"
#include "llvm/Support/DebugLoc.h"
#include "llvm/Target/TargetOpcodes.h"
#include <vector>
//===----------------------------------------------------------------------===//
/// MachineInstr - Representation of each machine instruction.
///
+/// This class isn't a POD type, but it must have a trivial destructor. When a
+/// MachineFunction is deleted, all the contained MachineInstrs are deallocated
+/// without having their destructor called.
+///
class MachineInstr : public ilist_node<MachineInstr> {
public:
typedef MachineMemOperand **mmo_iterator;
};
private:
const MCInstrDesc *MCID; // Instruction descriptor.
+ MachineBasicBlock *Parent; // Pointer to the owning basic block.
+
+ // Operands are allocated by an ArrayRecycler.
+ MachineOperand *Operands; // Pointer to the first operand.
+ unsigned NumOperands; // Number of operands on instruction.
+ typedef ArrayRecycler<MachineOperand>::Capacity OperandCapacity;
+ OperandCapacity CapOperands; // Capacity of the Operands array.
uint8_t Flags; // Various bits of additional
// information about machine
// anything other than to convey comment
// information to AsmPrinter.
- uint16_t NumMemRefs; // information on memory references
+ uint8_t NumMemRefs; // Information on memory references.
mmo_iterator MemRefs;
- std::vector<MachineOperand> Operands; // the operands
- MachineBasicBlock *Parent; // Pointer to the owning basic block.
DebugLoc debugLoc; // Source line information.
MachineInstr(const MachineInstr&) LLVM_DELETED_FUNCTION;
void operator=(const MachineInstr&) LLVM_DELETED_FUNCTION;
+ // Use MachineFunction::DeleteMachineInstr() instead.
+ ~MachineInstr() LLVM_DELETED_FUNCTION;
// Intrusive list support
friend struct ilist_traits<MachineInstr>;
/// MachineInstr ctor - This constructor create a MachineInstr and add the
/// implicit operands. It reserves space for number of operands specified by
/// MCInstrDesc. An explicit DebugLoc is supplied.
- MachineInstr(const MCInstrDesc &MCID, const DebugLoc dl, bool NoImp = false);
-
- ~MachineInstr();
+ MachineInstr(MachineFunction&, const MCInstrDesc &MCID,
+ const DebugLoc dl, bool NoImp = false);
// MachineInstrs are pool-allocated and owned by MachineFunction.
friend class MachineFunction;
/// Access to explicit operands of the instruction.
///
- unsigned getNumOperands() const { return (unsigned)Operands.size(); }
+ unsigned getNumOperands() const { return NumOperands; }
const MachineOperand& getOperand(unsigned i) const {
assert(i < getNumOperands() && "getOperand() out of range!");
unsigned getNumExplicitOperands() const;
/// iterator/begin/end - Iterate over all operands of a machine instruction.
- typedef std::vector<MachineOperand>::iterator mop_iterator;
- typedef std::vector<MachineOperand>::const_iterator const_mop_iterator;
+ typedef MachineOperand *mop_iterator;
+ typedef const MachineOperand *const_mop_iterator;
- mop_iterator operands_begin() { return Operands.begin(); }
- mop_iterator operands_end() { return Operands.end(); }
+ mop_iterator operands_begin() { return Operands; }
+ mop_iterator operands_end() { return Operands + NumOperands; }
- const_mop_iterator operands_begin() const { return Operands.begin(); }
- const_mop_iterator operands_end() const { return Operands.end(); }
+ const_mop_iterator operands_begin() const { return Operands; }
+ const_mop_iterator operands_end() const { return Operands + NumOperands; }
/// Access to memory operands of the instruction
mmo_iterator memoperands_begin() const { return MemRefs; }
/// The second argument indicates whether the query should look inside
/// instruction bundles.
bool hasProperty(unsigned MCFlag, QueryType Type = AnyInBundle) const {
- // Inline the fast path.
- if (Type == IgnoreBundle || !isBundle())
+ // Inline the fast path for unbundled or bundle-internal instructions.
+ if (Type == IgnoreBundle || !isBundled() || isBundledWithPred())
return getDesc().getFlags() & (1 << MCFlag);
- // If we have a bundle, take the slow path.
+ // If this is the first instruction in a bundle, take the slow path.
return hasPropertyInBundle(1 << MCFlag, Type);
}
bool isKill() const { return getOpcode() == TargetOpcode::KILL; }
bool isImplicitDef() const { return getOpcode()==TargetOpcode::IMPLICIT_DEF; }
bool isInlineAsm() const { return getOpcode() == TargetOpcode::INLINEASM; }
+ bool isMSInlineAsm() const {
+ return getOpcode() == TargetOpcode::INLINEASM && getInlineAsmDialect();
+ }
bool isStackAligningInlineAsm() const;
InlineAsm::AsmDialect getInlineAsmDialect() const;
bool isInsertSubreg() const {
}
}
- /// getBundleSize - Return the number of instructions inside the MI bundle.
+ /// Return the number of instructions inside the MI bundle, excluding the
+ /// bundle header.
+ ///
+ /// This is the number of instructions that MachineBasicBlock::iterator
+ /// skips, 0 for unbundled instructions.
unsigned getBundleSize() const;
/// readsRegister - Return true if the MachineInstr reads the specified
/// copyImplicitOps - Copy implicit register operands from specified
/// instruction to this instruction.
- void copyImplicitOps(const MachineInstr *MI);
+ void copyImplicitOps(MachineFunction &MF, const MachineInstr *MI);
//
// Debugging support
//
- void print(raw_ostream &OS, const TargetMachine *TM = 0) const;
+ void print(raw_ostream &OS, const TargetMachine *TM = 0,
+ bool SkipOpers = false) const;
void dump() const;
//===--------------------------------------------------------------------===//
// Accessors used to build up machine instructions.
- /// addOperand - Add the specified operand to the instruction. If it is an
- /// implicit operand, it is added to the end of the operand list. If it is
- /// an explicit operand it is added at the end of the explicit operand list
+ /// Add the specified operand to the instruction. If it is an implicit
+ /// operand, it is added to the end of the operand list. If it is an
+ /// explicit operand it is added at the end of the explicit operand list
/// (before the first implicit operand).
- void addOperand(const MachineOperand &Op);
+ ///
+ /// MF must be the machine function that was used to allocate this
+ /// instruction.
+ ///
+ /// MachineInstrBuilder provides a more convenient interface for creating
+ /// instructions and adding operands.
+ void addOperand(MachineFunction &MF, const MachineOperand &Op);
- // Add an operand while providing a context pointer. This will replace the
- // single-argument function shortly.
- //
- // MF must be the machine function that was used to allocate this instruction.
- void addOperand(MachineFunction &MF, const MachineOperand &Op) {
- addOperand(Op);
- }
+ /// Add an operand without providing an MF reference. This only works for
+ /// instructions that are inserted in a basic block.
+ ///
+ /// MachineInstrBuilder and the two-argument addOperand(MF, MO) should be
+ /// preferred.
+ void addOperand(const MachineOperand &Op);
/// setDesc - Replace the instruction descriptor (thus opcode) of
/// the current instruction with a new one.
/// list. This does not transfer ownership.
void setMemRefs(mmo_iterator NewMemRefs, mmo_iterator NewMemRefsEnd) {
MemRefs = NewMemRefs;
- NumMemRefs = NewMemRefsEnd - NewMemRefs;
+ NumMemRefs = uint8_t(NewMemRefsEnd - NewMemRefs);
+ assert(NumMemRefs == NewMemRefsEnd - NewMemRefs && "Too many memrefs");
}
private:
/// addImplicitDefUseOperands - Add all implicit def and use operands to
/// this instruction.
- void addImplicitDefUseOperands();
+ void addImplicitDefUseOperands(MachineFunction &MF);
/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in
/// this instruction from their respective use lists. This requires that the
projects / oota-llvm.git / blobdiff