class Constant;
class Function;
class MachineCodeForInstruction;
+class TargetRegisterClass;
//---------------------------------------------------------------------------
// Data types used to define information about a single machine instruction
// before control flow occurs.
const unsigned M_TERMINATOR_FLAG = 1 << 12;
+/// TargetOperandInfo - This holds information about one operand of a machine
+/// instruction, indicating the register class for register operands, etc.
+///
+class TargetOperandInfo {
+public:
+ /// RegClass - This specifies the register class of the operand if the
+ /// operand is a register. If not, this contains null.
+ const TargetRegisterClass *RegClass;
+
+ /// Currently no other information.
+};
+
+
class TargetInstrDescriptor {
public:
const char * Name; // Assembly language mnemonic for the opcode.
unsigned TSFlags; // Target Specific Flag values
const unsigned *ImplicitUses; // Registers implicitly read by this instr
const unsigned *ImplicitDefs; // Registers implicitly defined by this instr
+ const TargetOperandInfo *OpInfo; // 'numOperands' entries about operands.
};