Files
wasmtime/meta/cretonne/formats.py
Jakob Stoklund Olesen 86688053a6 Define icmp and fcmp comparison instructions.
Add new intcc and floatcc operand types for the immediate condition codes on
these instructions.

Add new IntCompare and FloatCompare instruction formats.

Add a generic match_enum() parser function that can match any identifier-like
enumerated operand kind that implements FromStr.

Define the icmp and fcmp instructions in case.py. Include documentation for the
condition codes with these two instructions.
2016-07-07 11:43:12 -07:00

48 lines
1.7 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 . import InstructionFormat, value, variable_args
from immediates import imm64, uimm8, ieee32, ieee64, immvector, intcc, floatcc
from entities import ebb, function, jump_table
Nullary = InstructionFormat()
Unary = InstructionFormat(value)
UnaryImm = InstructionFormat(imm64)
UnaryIeee32 = InstructionFormat(ieee32)
UnaryIeee64 = InstructionFormat(ieee64)
UnaryImmVector = InstructionFormat(immvector)
Binary = InstructionFormat(value, value)
BinaryImm = InstructionFormat(value, imm64)
BinaryImmRev = InstructionFormat(imm64, value)
# 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 whisch has a derived type.
Select = InstructionFormat(value, value, value, typevar_operand=1)
InsertLane = InstructionFormat(value, uimm8, value)
ExtractLane = InstructionFormat(value, uimm8)
IntCompare = InstructionFormat(intcc, value, value)
FloatCompare = InstructionFormat(floatcc, value, value)
Jump = InstructionFormat(ebb, variable_args, boxed_storage=True)
Branch = InstructionFormat(value, ebb, variable_args, boxed_storage=True)
BranchTable = InstructionFormat(value, jump_table)
Call = InstructionFormat(
function, variable_args, multiple_results=True, boxed_storage=True)
# Finally extract the names of global variables in this module.
InstructionFormat.extract_names(globals())