Convert op

convert_op

CastInstrWithFlags

Bases: CastInstr

Source code in xdsl/backend/llvm/convert_op.py

class CastInstrWithFlags(instructions.CastInstr):
    # workaround: llvmlite's CastInstr doesn't support flags like 'trunc nsw' or 'zext nneg'
    def __init__(
        self,
        parent: LLVMBlock,
        op: str,
        val: Value,
        typ: Type,
        name: str = "",
        flags: tuple[str, ...] | list[str] = (),
    ):
        instructions.Instruction.__init__(
            self, parent, typ, op, [val], name=name, flags=flags
        )

    def descr(self, buf: list[str]) -> None:
        opname = (
            " ".join([self.opname] + list(self.flags)) if self.flags else self.opname
        )
        op = self.operands[0]
        buf.append(
            f"{opname} {op.type} {op.get_reference()} to {self.type}{self._stringify_metadata(leading_comma=True)}\n"
        )

__init__(parent: LLVMBlock, op: str, val: Value, typ: Type, name: str = '', flags: tuple[str, ...] | list[str] = ())

Source code in xdsl/backend/llvm/convert_op.py

def __init__(
    self,
    parent: LLVMBlock,
    op: str,
    val: Value,
    typ: Type,
    name: str = "",
    flags: tuple[str, ...] | list[str] = (),
):
    instructions.Instruction.__init__(
        self, parent, typ, op, [val], name=name, flags=flags
    )

descr(buf: list[str]) -> None

Source code in xdsl/backend/llvm/convert_op.py

def descr(self, buf: list[str]) -> None:
    opname = (
        " ".join([self.opname] + list(self.flags)) if self.flags else self.opname
    )
    op = self.operands[0]
    buf.append(
        f"{opname} {op.type} {op.get_reference()} to {self.type}{self._stringify_metadata(leading_comma=True)}\n"
    )

convert_op(op: Operation, builder: ir.IRBuilder, val_map: dict[SSAValue, ir.Value], block_map: dict[Block, LLVMBlock] | None = None)

Convert an xDSL operation to an llvmlite LLVM IR.

Side effects

Mutates val_map by adding entries for the operation's results.

Parameters:

Name	Type	Description	Default
op	Operation	The xDSL operation to convert	required
builder	IRBuilder	The LLVM IR builder for constructing instructions	required
val_map	dict[SSAValue, Value]	The Mapping from xDSL SSA values to LLVM IR values. This dictionary is mutated to store the LLVM IR value produced by this operation for use by subsequent operations.	required

Raises:

Type	Description
NotImplementedError	If the operation is not supported.

Source code in xdsl/backend/llvm/convert_op.py

def convert_op(
    op: Operation,
    builder: ir.IRBuilder,
    val_map: dict[SSAValue, ir.Value],
    block_map: dict[Block, LLVMBlock] | None = None,
):
    """
    Convert an xDSL operation to an llvmlite LLVM IR.

    Side effects:
        Mutates val_map by adding entries for the operation's results.

    Args:
        op: The xDSL operation to convert
        builder: The LLVM IR builder for constructing instructions
        val_map: The Mapping from xDSL SSA values to LLVM IR values.
                 This dictionary is mutated to store the LLVM IR value produced by this operation for
                 use by subsequent operations.

    Raises:
        NotImplementedError: If the operation is not supported.
    """
    match op:
        case op if type(op) in _BINARY_OP_MAP:
            _convert_binop(op, builder, val_map)
        case llvm.ICmpOp():
            _convert_icmp(op, builder, val_map)
        case llvm.FCmpOp():
            _convert_fcmp(op, builder, val_map)
        case op if type(op) in _CAST_OP_NAMES:
            _convert_cast(op, builder, val_map)
        case llvm.FAbsOp():
            _convert_fabs(op, builder, val_map)
        case llvm.FNegOp():
            _convert_fneg(op, builder, val_map)
        case llvm.CallOp():
            _convert_call(op, builder, val_map)
        case llvm.AllocaOp():
            _convert_alloca(op, builder, val_map)
        case llvm.LoadOp():
            _convert_load(op, builder, val_map)
        case llvm.StoreOp():
            _convert_store(op, builder, val_map)
        case llvm.ExtractValueOp():
            val_map[op.results[0]] = builder.extract_value(
                val_map[op.container], list(op.position.iter_values())
            )
        case llvm.InsertValueOp():
            val_map[op.results[0]] = builder.insert_value(
                val_map[op.container],
                val_map[op.value],
                list(op.position.iter_values()),
            )
        case llvm.GEPOp():
            _convert_getelementptr(op, builder, val_map)
        case llvm.InlineAsmOp():
            _convert_inline_asm(op, builder, val_map)
        case llvm.CondBrOp() if block_map is not None:
            _convert_condbr(op, builder, val_map, block_map)
        case llvm.UnreachableOp():
            builder.unreachable()
        case llvm.SelectOp():
            _convert_select(op, builder, val_map)
        case llvm.MaskedStoreOp():
            _convert_masked_store(op, builder, val_map)
        case llvm.ReturnOp():
            _convert_return(op, builder, val_map)
        case _:
            raise NotImplementedError(f"Conversion not implemented for op: {op.name}")