#ifndef LLVM_CODEGEN_MACHINEINSTR_H
#define LLVM_CODEGEN_MACHINEINSTR_H
-#include "llvm/CodeGen/MachineOperand.h"
-#include "llvm/MC/MCInstrDesc.h"
-#include "llvm/Target/TargetOpcodes.h"
#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/ilist.h"
-#include "llvm/ADT/ilist_node.h"
+#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/DenseMapInfo.h"
+#include "llvm/ADT/ilist.h"
+#include "llvm/ADT/ilist_node.h"
+#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/InlineAsm.h"
+#include "llvm/MC/MCInstrDesc.h"
#include "llvm/Support/DebugLoc.h"
+#include "llvm/Target/TargetOpcodes.h"
#include <vector>
namespace llvm {
NoFlags = 0,
FrameSetup = 1 << 0, // Instruction is used as a part of
// function frame setup code.
- InsideBundle = 1 << 1 // Instruction is inside a bundle (not
- // the first MI in a bundle)
+ BundledPred = 1 << 1, // Instruction has bundled predecessors.
+ BundledSucc = 1 << 2 // Instruction has bundled successors.
};
private:
const MCInstrDesc *MCID; // Instruction descriptor.
/// MachineInstr in the given MachineFunction.
MachineInstr(MachineFunction &, const MachineInstr &);
- /// MachineInstr ctor - This constructor creates a dummy MachineInstr with
- /// MCID NULL and no operands.
- MachineInstr();
-
- // The next two constructors have DebugLoc and non-DebugLoc versions;
- // over time, the non-DebugLoc versions should be phased out and eventually
- // removed.
-
- /// MachineInstr ctor - This constructor creates a MachineInstr and adds the
- /// implicit operands. It reserves space for the number of operands specified
- /// by the MCInstrDesc. The version with a DebugLoc should be preferred.
- explicit MachineInstr(const MCInstrDesc &MCID, bool NoImp = false);
-
- /// MachineInstr ctor - Work exactly the same as the ctor above, except that
- /// the MachineInstr is created and added to the end of the specified basic
- /// block. The version with a DebugLoc should be preferred.
- MachineInstr(MachineBasicBlock *MBB, const MCInstrDesc &MCID);
-
/// 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.
- explicit MachineInstr(const MCInstrDesc &MCID, const DebugLoc dl,
- bool NoImp = false);
-
- /// MachineInstr ctor - Work exactly the same as the ctor above, except that
- /// the MachineInstr is created and added to the end of the specified basic
- /// block.
- MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl,
- const MCInstrDesc &MCID);
+ MachineInstr(const MCInstrDesc &MCID, const DebugLoc dl, bool NoImp = false);
~MachineInstr();
/// The first instruction has the special opcode "BUNDLE". It's not "inside"
/// a bundle, but the next three MIs are.
bool isInsideBundle() const {
- return getFlag(InsideBundle);
+ return getFlag(BundledPred);
}
/// setIsInsideBundle - Set InsideBundle bit.
///
void setIsInsideBundle(bool Val = true) {
if (Val)
- setFlag(InsideBundle);
+ setFlag(BundledPred);
else
- clearFlag(InsideBundle);
+ clearFlag(BundledPred);
}
/// isBundled - Return true if this instruction part of a bundle. This is true
/// if either itself or its following instruction is marked "InsideBundle".
bool isBundled() const;
+ /// Return true if this instruction is part of a bundle, and it is not the
+ /// first instruction in the bundle.
+ bool isBundledWithPred() const { return getFlag(BundledPred); }
+
+ /// Return true if this instruction is part of a bundle, and it is not the
+ /// last instruction in the bundle.
+ bool isBundledWithSucc() const { return getFlag(BundledSucc); }
+
+ /// Bundle this instruction with its predecessor. This can be an unbundled
+ /// instruction, or it can be the first instruction in a bundle.
+ void bundleWithPred();
+
+ /// Bundle this instruction with its successor. This can be an unbundled
+ /// instruction, or it can be the last instruction in a bundle.
+ void bundleWithSucc();
+
+ /// Break bundle above this instruction.
+ void unbundleFromPred();
+
+ /// Break bundle below this instruction.
+ void unbundleFromSucc();
+
/// getDebugLoc - Returns the debug location id of this MachineInstr.
///
DebugLoc getDebugLoc() const { return debugLoc; }
/// Instructions with this flag set are not necessarily simple load
/// instructions, they may load a value and modify it, for example.
bool mayLoad(QueryType Type = AnyInBundle) const {
+ if (isInlineAsm()) {
+ unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm();
+ if (ExtraInfo & InlineAsm::Extra_MayLoad)
+ return true;
+ }
return hasProperty(MCID::MayLoad, Type);
}
/// instructions, they may store a modified value based on their operands, or
/// may not actually modify anything, for example.
bool mayStore(QueryType Type = AnyInBundle) const {
+ if (isInlineAsm()) {
+ unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm();
+ if (ExtraInfo & InlineAsm::Extra_MayStore)
+ return true;
+ }
return hasProperty(MCID::MayStore, Type);
}