5d8fb0fdc3
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.
45 lines
1.5 KiB
Python
45 lines
1.5 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 . 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('intcc', 'An integer comparison condition code.')
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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', 'A floating point comparison condition code.')
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