7ead1e3f6f
Usually an instruction firmat has only a single immediate operand called 'imm', or 'cond' if it is one of the condigtion codes. Add a 'default_member' field to ImmediateKind to keep track of this default member name in the InstructionData struct.
50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
"""
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The `cretonne.immediates` module predefines all the Cretonne immediate operand
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types.
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"""
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from __future__ import absolute_import
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from . import ImmediateKind
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#: A 64-bit immediate integer operand.
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#:
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#: This type of immediate integer can interact with SSA values with any
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#: :py:class:`cretonne.IntType` type.
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imm64 = ImmediateKind('imm64', 'A 64-bit immediate integer.')
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#: An unsigned 8-bit immediate integer operand.
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#:
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#: This small operand is used to indicate lane indexes in SIMD vectors and
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#: immediate bit counts on shift instructions.
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uimm8 = ImmediateKind('uimm8', 'An 8-bit immediate unsigned integer.')
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#: A 32-bit immediate floating point operand.
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#:
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#: IEEE 754-2008 binary32 interchange format.
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ieee32 = ImmediateKind('ieee32', 'A 32-bit immediate floating point number.')
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#: A 64-bit immediate floating point operand.
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#:
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#: IEEE 754-2008 binary64 interchange format.
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ieee64 = ImmediateKind('ieee64', 'A 64-bit immediate floating point number.')
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#: A large SIMD vector constant.
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immvector = ImmediateKind('immvector', 'An immediate SIMD vector.')
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#: A condition code for comparing integer values.
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#:
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#: This enumerated operand kind is used for the :cton:inst:`icmp` instruction
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#: and corresponds to the `condcodes::IntCC` Rust type.
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intcc = ImmediateKind(
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'intcc',
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'An integer comparison condition code.',
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default_member='cond')
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#: A condition code for comparing floating point values.
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#:
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#: This enumerated operand kind is used for the :cton:inst:`fcmp` instruction
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#: and corresponds to the `condcodes::FloatCC` Rust type.
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floatcc = ImmediateKind(
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'floatcc',
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'A floating point comparison condition code.',
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default_member='cond')
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