9fbfd0d2a6
No instruction sets actually have single instructions for materializing vector constants. You always need to use a constant pool. Cretonne doesn't have constant pools yet, but it will in the future, and that is how vector constants should be represented.
57 lines
2.2 KiB
Python
57 lines
2.2 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, 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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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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# 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, value_list=True)
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Branch = InstructionFormat(VALUE, ebb, VARIABLE_ARGS, value_list=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, value_list=True)
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IndirectCall = InstructionFormat(
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sig_ref, VALUE, VARIABLE_ARGS,
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multiple_results=True, value_list=True)
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Return = InstructionFormat(VARIABLE_ARGS, value_list=True)
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ReturnReg = InstructionFormat(VALUE, VARIABLE_ARGS, value_list=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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