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1cb1107c66
This should only make a difference in programs that use a lot of the vector ALU instructions like BFI_INT and BIT_ALIGN. There is a slight improvement in the phatk bitcoin mining kernel with this patch on Evergreen (vector size == 1): Before: 1173 Instruction Groups / 9520 dwords After: 1167 Instruction Groups / 9510 dwords Reviewed-by: Reviewed-by: Vincent Lejeune<vljn at ovi.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184819 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.5 KiB
TableGen
48 lines
1.5 KiB
TableGen
//===-- R600Schedule.td - R600 Scheduling definitions ------*- 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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// R600 has a VLIW architecture. On pre-cayman cards there are 5 instruction
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// slots ALU.X, ALU.Y, ALU.Z, ALU.W, and TRANS. For cayman cards, the TRANS
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// slot has been removed.
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//
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//===----------------------------------------------------------------------===//
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def ALU_X : FuncUnit;
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def ALU_Y : FuncUnit;
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def ALU_Z : FuncUnit;
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def ALU_W : FuncUnit;
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def TRANS : FuncUnit;
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def AnyALU : InstrItinClass;
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def VecALU : InstrItinClass;
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def TransALU : InstrItinClass;
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def R600_VLIW5_Itin : ProcessorItineraries <
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[ALU_X, ALU_Y, ALU_Z, ALU_W, TRANS, ALU_NULL],
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[],
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[
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InstrItinData<AnyALU, [InstrStage<1, [ALU_X, ALU_Y, ALU_Z, ALU_W, TRANS]>]>,
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InstrItinData<VecALU, [InstrStage<1, [ALU_X, ALU_Y, ALU_Z, ALU_W]>]>,
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InstrItinData<TransALU, [InstrStage<1, [TRANS]>]>,
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InstrItinData<NullALU, [InstrStage<1, [ALU_NULL]>]>
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]
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>;
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def R600_VLIW4_Itin : ProcessorItineraries <
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[ALU_X, ALU_Y, ALU_Z, ALU_W, ALU_NULL],
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[],
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[
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InstrItinData<AnyALU, [InstrStage<1, [ALU_X, ALU_Y, ALU_Z, ALU_W]>]>,
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InstrItinData<VecALU, [InstrStage<1, [ALU_X, ALU_Y, ALU_Z, ALU_W]>]>,
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InstrItinData<TransALU, [InstrStage<1, [ALU_NULL]>]>,
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InstrItinData<NullALU, [InstrStage<1, [ALU_NULL]>]>
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]
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>;
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