20ff2f0025
Register-style return is used by all RISC architectures, so it is natural to have a shared instruction representation.
59 lines
2.3 KiB
Python
59 lines
2.3 KiB
Python
"""
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The cretonne.formats defines all instruction formats.
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Every instruction format has a corresponding `InstructionData` variant in the
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Rust representation of cretonne IL, so all instruction formats must be defined
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in this module.
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"""
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from __future__ import absolute_import
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from cdsl.formats import InstructionFormat
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from cdsl.operands import VALUE, VARIABLE_ARGS
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from .immediates import imm64, uimm8, ieee32, ieee64, immvector, intcc, floatcc
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from .entities import ebb, sig_ref, func_ref, jump_table
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Nullary = InstructionFormat()
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Unary = InstructionFormat(VALUE)
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UnaryImm = InstructionFormat(imm64)
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UnaryIeee32 = InstructionFormat(ieee32)
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UnaryIeee64 = InstructionFormat(ieee64)
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UnaryImmVector = InstructionFormat(immvector, boxed_storage=True)
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UnarySplit = InstructionFormat(VALUE, multiple_results=True)
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Binary = InstructionFormat(VALUE, VALUE)
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BinaryImm = InstructionFormat(VALUE, imm64)
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BinaryImmRev = InstructionFormat(imm64, VALUE)
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# Generate result + overflow flag.
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BinaryOverflow = InstructionFormat(VALUE, VALUE, multiple_results=True)
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# The select instructions are controlled by the second VALUE operand.
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# The first VALUE operand is the controlling flag which has a derived type.
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# The fma instruction has the same constraint on all inputs.
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Ternary = InstructionFormat(VALUE, VALUE, VALUE, typevar_operand=1)
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# Carry in *and* carry out for `iadd_carry` and friends.
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TernaryOverflow = InstructionFormat(
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VALUE, VALUE, VALUE, multiple_results=True, boxed_storage=True)
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InsertLane = InstructionFormat(VALUE, ('lane', uimm8), VALUE)
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ExtractLane = InstructionFormat(VALUE, ('lane', uimm8))
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IntCompare = InstructionFormat(intcc, VALUE, VALUE)
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FloatCompare = InstructionFormat(floatcc, VALUE, VALUE)
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Jump = InstructionFormat(ebb, VARIABLE_ARGS, boxed_storage=True)
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Branch = InstructionFormat(VALUE, ebb, VARIABLE_ARGS, boxed_storage=True)
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BranchTable = InstructionFormat(VALUE, jump_table)
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Call = InstructionFormat(
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func_ref, VARIABLE_ARGS, multiple_results=True, boxed_storage=True)
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IndirectCall = InstructionFormat(
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sig_ref, VALUE, VARIABLE_ARGS,
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multiple_results=True, boxed_storage=True)
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Return = InstructionFormat(VARIABLE_ARGS, boxed_storage=True)
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ReturnReg = InstructionFormat(VALUE, VARIABLE_ARGS, boxed_storage=True)
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# Finally extract the names of global variables in this module.
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InstructionFormat.extract_names(globals())
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