09734f2033
Three predicates affect each extension: - supports_m determines whether the target CPU supports the instruction set. - enable_m determines if the instructions should be used, assuming they're available. - use_m is the predicate used to actually use the instructions.
36 lines
937 B
Python
36 lines
937 B
Python
"""
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Cretonne shared settings.
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This module defines settings are are relevant for all code generators.
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"""
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from __future__ import absolute_import
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from . import SettingGroup, BoolSetting, EnumSetting
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group = SettingGroup('shared')
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opt_level = EnumSetting(
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"""
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Optimization level:
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- default: Very profitable optimizations enabled, none slow.
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- best: Enable all optimizations
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- fastest: Optimize for compile time by disabling most optimizations.
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""",
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'default', 'best', 'fastest')
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is_64bit = BoolSetting("Enable 64-bit code generation")
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enable_float = BoolSetting(
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"""Enable the use of floating-point instructions""",
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default=True)
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enable_simd = BoolSetting(
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"""Enable the use of SIMD instructions.""",
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default=True)
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enable_atomics = BoolSetting(
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"""Enable the use of atomic instructions""",
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default=True)
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group.close(globals())
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