forked from OSchip/llvm-project
83 lines
2.4 KiB
TableGen
Executable File
83 lines
2.4 KiB
TableGen
Executable File
//===-- LeonFeatures.td - Describe the Leon Features -------*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// UMAC and SMAC support for LEON3 and LEON4 processors.
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//===----------------------------------------------------------------------===//
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//support to casa instruction; for leon3 subtarget only
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def UMACSMACSupport : SubtargetFeature<
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"hasumacsmac",
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"HasUmacSmac",
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"true",
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"Enable UMAC and SMAC for LEON3 and LEON4 processors"
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>;
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//===----------------------------------------------------------------------===//
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// CASA Support differs between LEON3-FT GR712RC and LEON3-FT UT699
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// We need to have the option to switch this on and off.
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//===----------------------------------------------------------------------===//
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//support to casa instruction; for leon3 subtarget only
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def LeonCASA : SubtargetFeature<
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"hasleoncasa",
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"HasLeonCasa",
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"true",
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"Enable CASA instruction for LEON3 and LEON4 processors"
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>;
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def ReplaceSDIV : SubtargetFeature<
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"replacesdiv",
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"PerformSDIVReplace",
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"true",
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"AT697E erratum fix: Do not emit SDIV, emit SDIVCC instead"
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>;
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def InsertNOPLoad: SubtargetFeature<
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"insertnopload",
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"InsertNOPLoad",
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"true",
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"LEON3 erratum fix: Insert a NOP instruction after every single-cycle load instruction when the next instruction is another load/store instruction"
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>;
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def FixFSMULD : SubtargetFeature<
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"fixfsmuld",
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"FixFSMULD",
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"true",
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"LEON erratum fix: Do not use FSMULD"
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>;
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def ReplaceFMULS : SubtargetFeature<
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"replacefmuls",
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"ReplaceFMULS",
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"true",
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"LEON erratum fix: Replace FMULS instruction with FMULD and relevant conversion instructions"
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>;
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def DetectRoundChange : SubtargetFeature<
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"detectroundchange",
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"DetectRoundChange",
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"true",
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"LEON3 erratum detection: Detects any rounding mode change "
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"request: use only the round-to-nearest rounding mode"
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>;
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def FixAllFDIVSQRT : SubtargetFeature<
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"fixallfdivsqrt",
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"FixAllFDIVSQRT",
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"true",
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"LEON erratum fix: Fix FDIVS/FDIVD/FSQRTS/FSQRTD instructions with NOPs and floating-point store"
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>;
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