File: CodeSchedulingOptionsDef.h

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/*========================== begin_copyright_notice ============================

Copyright (C) 2025 Intel Corporation

SPDX-License-Identifier: MIT

============================= end_copyright_notice ===========================*/

#ifdef DECLARE_SCHEDULING_OPTION

// For the usage with IGC_CodeSchedulingConfig option, see CodeScheduling.cpp, class SchedulingConfig
// Publicly available options are in igc_flags.h, search for CodeScheduling*

// Edge weigths
DECLARE_SCHEDULING_OPTION(DefaultWeight, 10, "Default edge weight for dependency graph")
DECLARE_SCHEDULING_OPTION(UseHighRPWeight, 1, "Use alternative weights when register pressure is high")
DECLARE_SCHEDULING_OPTION(Weight2dBlockReadSrcDep, 300, "Edge weight for 2D block read source dependency")
DECLARE_SCHEDULING_OPTION(Weight2dBlockReadDstDep, 3000, "Edge weight for 2D block read destination dependency")
DECLARE_SCHEDULING_OPTION(Weight2dBlockReadDstDepHighRP, 100,
                          "Edge weight for 2D block read destination dependency under high register pressure")
DECLARE_SCHEDULING_OPTION(Weight2dBlockSetPayloadFieldDstDep, 30,
                          "Edge weight for 2D block set payload field destination dependency")
DECLARE_SCHEDULING_OPTION(WeightPrefetch, 100000, "Edge weight for prefetch instructions")
DECLARE_SCHEDULING_OPTION(WeightDPASDstDep, 1000, "Edge weight for DPAS destination dependency")
DECLARE_SCHEDULING_OPTION(WeightDPASDstDepHighRP, 6000,
                          "Edge weight for DPAS destination dependency under high register pressure")
DECLARE_SCHEDULING_OPTION(WeightExtendedMathDstDep, 200, "Edge weight for extended math destination dependency")
DECLARE_SCHEDULING_OPTION(WeightUnknownMemoryReadDstDep, 500,
                          "Edge weight for unknown memory read destination dependency")
DECLARE_SCHEDULING_OPTION(WeightUnknownVectorShuffleDstDep, 50,
                          "Edge weight for unknown vector shuffle destination dependency")

// Heurictics
DECLARE_SCHEDULING_OPTION(PrioritizeLargeBlockLoadsInRP, 32,
                          "Heuristic: Prioritize block loads larger than the value when register pressure is high")
DECLARE_SCHEDULING_OPTION(PrioritizeDPASHighRP, 0,
                          "Heuristic: Prioritize DPAS instructions under high register pressure")

// RP management control options
DECLARE_SCHEDULING_OPTION(GreedyRPThresholdDelta, 20, "Threshold delta for greedy register pressure scheduling")
DECLARE_SCHEDULING_OPTION(LowRPThresholdDelta, 200, "Unused: Threshold delta for low register pressure")
DECLARE_SCHEDULING_OPTION(MinLiveIntervalForCloning, 200, "Minimum live interval for cloning instructions")
DECLARE_SCHEDULING_OPTION(ReservedRegisters, 2, "Number of always reserved registers")

// Other
DECLARE_SCHEDULING_OPTION(ForceSIMDSize, 16,
                          "Force SIMD mode for scheduling, 0 is no force, 8 is SIMD8, 16 is SIMD16, etc.")
DECLARE_SCHEDULING_OPTION(DefaultNumGRF, 128,
                          "Default number of GRFs for scheduling, used when the context does not provide it")
DECLARE_SCHEDULING_OPTION(
    DefaultNumGRFAuto, 256,
    "Default number of GRFs for scheduling, used when the context does not provide it, but auto is enabled")

#endif