66 lines
2.5 KiB
Python
66 lines
2.5 KiB
Python
"""
|
|
The cretonne.formats defines all instruction formats.
|
|
|
|
Every instruction format has a corresponding `InstructionData` variant in the
|
|
Rust representation of cretonne IL, so all instruction formats must be defined
|
|
in this module.
|
|
"""
|
|
from __future__ import absolute_import
|
|
from cdsl.formats import InstructionFormat
|
|
from cdsl.operands import VALUE, VARIABLE_ARGS
|
|
from .immediates import imm64, uimm8, ieee32, ieee64, offset32, uoffset32
|
|
from .immediates import intcc, floatcc
|
|
from .entities import ebb, sig_ref, func_ref, jump_table, stack_slot
|
|
|
|
Nullary = InstructionFormat()
|
|
|
|
Unary = InstructionFormat(VALUE)
|
|
UnaryImm = InstructionFormat(imm64)
|
|
UnaryIeee32 = InstructionFormat(ieee32)
|
|
UnaryIeee64 = InstructionFormat(ieee64)
|
|
UnarySplit = InstructionFormat(VALUE, multiple_results=True)
|
|
|
|
Binary = InstructionFormat(VALUE, VALUE)
|
|
BinaryImm = InstructionFormat(VALUE, imm64)
|
|
|
|
# Generate result + overflow flag.
|
|
BinaryOverflow = InstructionFormat(VALUE, VALUE, multiple_results=True)
|
|
|
|
# The select instructions are controlled by the second VALUE operand.
|
|
# The first VALUE operand is the controlling flag which has a derived type.
|
|
# The fma instruction has the same constraint on all inputs.
|
|
Ternary = InstructionFormat(VALUE, VALUE, VALUE, typevar_operand=1)
|
|
|
|
# Catch-all for instructions with many outputs and inputs and no immediate
|
|
# operands.
|
|
MultiAry = InstructionFormat(VARIABLE_ARGS, multiple_results=True)
|
|
|
|
InsertLane = InstructionFormat(VALUE, ('lane', uimm8), VALUE)
|
|
ExtractLane = InstructionFormat(VALUE, ('lane', uimm8))
|
|
|
|
IntCompare = InstructionFormat(intcc, VALUE, VALUE)
|
|
IntCompareImm = InstructionFormat(intcc, VALUE, imm64)
|
|
FloatCompare = InstructionFormat(floatcc, VALUE, VALUE)
|
|
|
|
Jump = InstructionFormat(ebb, VARIABLE_ARGS)
|
|
Branch = InstructionFormat(VALUE, ebb, VARIABLE_ARGS)
|
|
BranchIcmp = InstructionFormat(intcc, VALUE, VALUE, ebb, VARIABLE_ARGS)
|
|
BranchTable = InstructionFormat(VALUE, jump_table)
|
|
|
|
Call = InstructionFormat(
|
|
func_ref, VARIABLE_ARGS, multiple_results=True)
|
|
IndirectCall = InstructionFormat(
|
|
sig_ref, VALUE, VARIABLE_ARGS,
|
|
multiple_results=True)
|
|
|
|
StackLoad = InstructionFormat(stack_slot, offset32)
|
|
StackStore = InstructionFormat(VALUE, stack_slot, offset32)
|
|
|
|
# Accessing a WebAssembly heap.
|
|
# TODO: Add a reference to a `heap` declared in the preamble.
|
|
HeapLoad = InstructionFormat(VALUE, uoffset32)
|
|
HeapStore = InstructionFormat(VALUE, VALUE, uoffset32)
|
|
|
|
# Finally extract the names of global variables in this module.
|
|
InstructionFormat.extract_names(globals())
|