LLVM 22.0.0git
InstrEmitter.cpp File Reference

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Macros

#define DEBUG_TYPE   "instr-emitter"

Functions

static unsigned countOperands (SDNode *Node, unsigned NumExpUses, unsigned &NumImpUses)
 countOperands - The inputs to target nodes have any actual inputs first, followed by an optional chain operand, then an optional glue operand.
static bool isConvergenceCtrlMachineOp (SDValue Op)
MachineOperand GetMOForConstDbgOp (const SDDbgOperand &Op)

Variables

const unsigned MinRCSize = 4
 MinRCSize - Smallest register class we allow when constraining virtual registers.

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE   "instr-emitter"

Definition at line 32 of file InstrEmitter.cpp.

Function Documentation

◆ countOperands()

unsigned countOperands ( SDNode * Node,
unsigned NumExpUses,
unsigned & NumImpUses )
static

countOperands - The inputs to target nodes have any actual inputs first, followed by an optional chain operand, then an optional glue operand.

Compute the number of actual operands that will go into the resulting MachineInstr.

Also count physreg RegisterSDNode and RegisterMaskSDNode operands preceding the chain and glue. These operands may be implicit on the machine instr.

Definition at line 59 of file InstrEmitter.cpp.

References llvm::dyn_cast(), I, llvm::isa(), and N.

◆ GetMOForConstDbgOp()

◆ isConvergenceCtrlMachineOp()

bool isConvergenceCtrlMachineOp ( SDValue Op)
static

Definition at line 281 of file InstrEmitter.cpp.

References llvm_unreachable.

Variable Documentation

◆ MinRCSize

const unsigned MinRCSize = 4

MinRCSize - Smallest register class we allow when constraining virtual registers.

If satisfying all register class constraints would require using a smaller register class, emit a COPY to a new virtual register instead.

Definition at line 38 of file InstrEmitter.cpp.