438bf4a66b
The VSX versions have the advantage of a full 64-register target whereas the FP ones have the advantage of lower latency and higher throughput. So what we’re after is using the faster instructions in low register pressure situations and using the larger register file in high register pressure situations. The heuristic chooses between the following 7 pairs of instructions. PPC::LXSSPX vs PPC::LFSX PPC::LXSDX vs PPC::LFDX PPC::STXSSPX vs PPC::STFSX PPC::STXSDX vs PPC::STFDX PPC::LXSIWAX vs PPC::LFIWAX PPC::LXSIWZX vs PPC::LFIWZX PPC::STXSIWX vs PPC::STFIWX Differential Revision: https://reviews.llvm.org/D38486 llvm-svn: 318651
992 lines
21 KiB
TableGen
992 lines
21 KiB
TableGen
//===- P9InstrResources.td - P9 Instruction Resource Defs -*- 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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// This file defines resources required by some of P9 instruction. This is part
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// P9 processor model used for instruction scheduling. Not every instruction
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// is listed here. Instructions in this file belong to itinerary classes that
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// have instructions with different resource requirements.
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//
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// The makeup of the P9 CPU is modeled as follows:
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// - Each CPU is made up of two superslices.
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// - Each superslice is made up of two slices. Therefore, there are 4 slices
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// for each CPU.
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// - Up to 6 instructions can be dispatched to each CPU. Three per superslice.
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// - Each CPU has:
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// - One CY (Crypto) unit P9_CY_*
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// - One DFU (Decimal Floating Point and Quad Precision) unit P9_DFU_*
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// - Two PM (Permute) units. One on each superslice. P9_PM_*
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// - Two DIV (Fixed Point Divide) units. One on each superslize. P9_DIV_*
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// - Four ALU (Fixed Point Arithmetic) units. One on each slice. P9_ALU_*
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// - Four DP (Floating Point) units. One on each slice. P9_DP_*
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// This also includes fixed point multiply add.
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// - Four AGEN (Address Generation) units. One for each slice. P9_AGEN_*
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// - Four Load/Store Queues. P9_LS_*
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// - Each set of instructions will require a number of these resources.
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//===----------------------------------------------------------------------===//
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// Two cycle ALU vector operation that uses an entire superslice.
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// Uses both ALU units (the even ALUE and odd ALUO units), two pipelines
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// (EXECE, EXECO) and all three dispatches (DISP) to the given superslice.
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def : InstRW<[P9_ALUE_2C, P9_ALUO_2C, IP_EXECE_1C, IP_EXECO_1C,
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DISP_1C, DISP_1C, DISP_1C],
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(instrs
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VADDCUW,
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VADDUBM,
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VADDUDM,
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VADDUHM,
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VADDUWM,
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VAND,
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VANDC,
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VCMPEQUB,
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VCMPEQUD,
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VCMPEQUH,
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VCMPEQUW,
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VCMPNEB,
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VCMPNEH,
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VCMPNEW,
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VCMPNEZB,
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VCMPNEZH,
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VCMPNEZW,
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VEQV,
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VEXTSB2D,
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VEXTSB2W,
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VEXTSH2D,
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VEXTSH2W,
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VEXTSW2D,
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VRLB,
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VRLD,
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VRLDMI,
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VRLDNM,
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VRLH,
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VRLW,
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VRLWMI,
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VRLWNM,
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VSRAB,
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VSRAD,
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VSRAH,
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VSRAW,
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VSRB,
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VSRD,
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VSRH,
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VSRW,
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VSLB,
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VSLD,
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VSLH,
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VSLW,
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VMRGEW,
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VMRGOW,
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VNAND,
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VNEGD,
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VNEGW,
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VNOR,
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VOR,
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VORC,
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VPOPCNTB,
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VPOPCNTH,
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VSEL,
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VSUBUBM,
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VSUBUDM,
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VSUBUHM,
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VSUBUWM,
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VXOR,
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V_SET0B,
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V_SET0H,
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V_SET0,
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XVABSDP,
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XVABSSP,
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XVCPSGNDP,
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XVCPSGNSP,
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XVIEXPDP,
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XVNABSDP,
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XVNABSSP,
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XVNEGDP,
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XVNEGSP,
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XVXEXPDP,
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XVIEXPSP,
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XVXEXPSP,
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XXLAND,
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XXLANDC,
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XXLEQV,
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XXLNAND,
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XXLNOR,
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XXLOR,
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XXLORf,
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XXLORC,
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XXLXOR,
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XXSEL,
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XSABSQP,
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XSCPSGNQP,
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XSIEXPQP,
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XSNABSQP,
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XSNEGQP,
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XSXEXPQP
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)>;
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// Restricted Dispatch ALU operation for 3 cycles. The operation runs on a
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// slingle slice. However, since it is Restricted it requires all 3 dispatches
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// (DISP) for that superslice.
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def : InstRW<[P9_ALU_3C, IP_EXEC_1C, DISP_1C, DISP_1C, DISP_1C],
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(instrs
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FCMPUS,
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FCMPUD,
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XSTSTDCDP,
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XSTSTDCSP
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)>;
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// Standard Dispatch ALU operation for 3 cycles. Only one slice used.
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def : InstRW<[P9_ALU_3C, IP_EXEC_1C, DISP_1C, DISP_1C],
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(instrs
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XSMAXCDP,
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XSMAXDP,
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XSMAXJDP,
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XSMINCDP,
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XSMINDP,
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XSMINJDP,
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XSTDIVDP,
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XSTSQRTDP,
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XSCMPEQDP,
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XSCMPEXPDP,
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XSCMPGEDP,
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XSCMPGTDP,
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XSCMPODP,
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XSCMPUDP,
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XSXSIGDP,
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XSCVSPDPN
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)>;
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// Standard Dispatch ALU operation for 2 cycles. Only one slice used.
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def : InstRW<[P9_ALU_2C, IP_EXEC_1C, DISP_1C, DISP_1C],
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(instrs
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ADDIStocHA,
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ADDItocL,
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MCRF,
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MCRXRX,
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SLD,
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SRD,
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SRAD,
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SRADI,
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RLDIC,
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XSNABSDP,
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XSXEXPDP,
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XSABSDP,
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XSNEGDP,
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XSCPSGNDP
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)>;
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// Restricted Dispatch ALU operation for 2 cycles. The operation runs on a
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// slingle slice. However, since it is Restricted it requires all 3 dispatches
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// (DISP) for that superslice.
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def : InstRW<[P9_ALU_2C, IP_EXEC_1C, DISP_1C, DISP_1C, DISP_1C],
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(instrs
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RLDCL,
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RLDCR,
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RLDIMI,
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RLDICL,
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RLDICR,
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RLDICL_32_64,
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XSIEXPDP,
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FMR,
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FABSD,
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FABSS,
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FNABSD,
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FNABSS,
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FNEGD,
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FNEGS,
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FCPSGND,
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FCPSGNS
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)>;
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// Three cycle ALU vector operation that uses an entire superslice.
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// Uses both ALU units (the even ALUE and odd ALUO units), two pipelines
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// (EXECE, EXECO) and all three dispatches (DISP) to the given superslice.
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def : InstRW<[P9_ALUE_3C, P9_ALUO_3C, IP_EXECE_1C, IP_EXECO_1C,
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DISP_1C, DISP_1C, DISP_1C],
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(instrs
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VBPERMD,
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VABSDUB,
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VABSDUH,
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VABSDUW,
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VADDUBS,
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VADDUHS,
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VADDUWS,
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VAVGSB,
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VAVGSH,
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VAVGSW,
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VAVGUB,
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VAVGUH,
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VAVGUW,
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VCMPEQFP,
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VCMPEQFPo,
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VCMPGEFP,
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VCMPGEFPo,
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VCMPBFP,
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VCMPBFPo,
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VCMPGTFP,
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VCMPGTFPo,
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VCLZB,
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VCLZD,
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VCLZH,
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VCLZW,
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VCTZB,
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VCTZD,
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VCTZH,
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VCTZW,
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VADDSBS,
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VADDSHS,
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VADDSWS,
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VMINFP,
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VMINSB,
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VMINSD,
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VMINSH,
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VMINSW,
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VMINUB,
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VMINUD,
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VMINUH,
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VMINUW,
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VMAXFP,
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VMAXSB,
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VMAXSD,
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VMAXSH,
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VMAXSW,
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VMAXUB,
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VMAXUD,
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VMAXUH,
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VMAXUW,
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VPOPCNTW,
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VPOPCNTD,
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VPRTYBD,
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VPRTYBW,
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VSHASIGMAD,
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VSHASIGMAW,
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VSUBSBS,
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VSUBSHS,
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VSUBSWS,
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VSUBUBS,
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VSUBUHS,
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VSUBUWS,
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VSUBCUW,
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VCMPGTSB,
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VCMPGTSBo,
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VCMPGTSD,
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VCMPGTSDo,
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VCMPGTSH,
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VCMPGTSHo,
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VCMPGTSW,
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VCMPGTSWo,
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VCMPGTUB,
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VCMPGTUBo,
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VCMPGTUD,
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VCMPGTUDo,
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VCMPGTUH,
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VCMPGTUHo,
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VCMPGTUW,
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VCMPGTUWo,
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VCMPNEBo,
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VCMPNEHo,
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VCMPNEWo,
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VCMPNEZBo,
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VCMPNEZHo,
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VCMPNEZWo,
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VCMPEQUBo,
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VCMPEQUDo,
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VCMPEQUHo,
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VCMPEQUWo,
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XVCMPEQDP,
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XVCMPEQDPo,
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XVCMPEQSP,
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XVCMPEQSPo,
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XVCMPGEDP,
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XVCMPGEDPo,
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XVCMPGESP,
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XVCMPGESPo,
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XVCMPGTDP,
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XVCMPGTDPo,
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XVCMPGTSP,
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XVCMPGTSPo,
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XVMAXDP,
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XVMAXSP,
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XVMINDP,
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XVMINSP,
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XVTDIVDP,
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XVTDIVSP,
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XVTSQRTDP,
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XVTSQRTSP,
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XVTSTDCDP,
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XVTSTDCSP,
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XVXSIGDP,
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XVXSIGSP
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)>;
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// 7 cycle DP vector operation that uses an entire superslice.
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// Uses both DP units (the even DPE and odd DPO units), two pipelines
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// (EXECE, EXECO) and all three dispatches (DISP) to the given superslice.
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def : InstRW<[P9_DPE_7C, P9_DPO_7C, IP_EXECE_1C, IP_EXECO_1C,
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DISP_1C, DISP_1C, DISP_1C],
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(instrs
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VADDFP,
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VCTSXS,
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VCTSXS_0,
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VCTUXS,
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VCTUXS_0,
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VEXPTEFP,
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VLOGEFP,
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VMADDFP,
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VMHADDSHS,
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VNMSUBFP,
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VREFP,
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VRFIM,
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VRFIN,
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VRFIP,
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VRFIZ,
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VRSQRTEFP,
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VSUBFP,
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XVADDDP,
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XVADDSP,
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XVCVDPSP,
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XVCVDPSXDS,
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XVCVDPSXWS,
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XVCVDPUXDS,
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XVCVDPUXWS,
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XVCVHPSP,
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XVCVSPDP,
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XVCVSPHP,
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XVCVSPSXDS,
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XVCVSPSXWS,
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XVCVSPUXDS,
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XVCVSPUXWS,
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XVCVSXDDP,
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XVCVSXDSP,
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XVCVSXWDP,
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XVCVSXWSP,
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XVCVUXDDP,
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XVCVUXDSP,
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XVCVUXWDP,
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XVCVUXWSP,
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XVMADDADP,
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XVMADDASP,
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XVMADDMDP,
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XVMADDMSP,
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XVMSUBADP,
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XVMSUBASP,
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XVMSUBMDP,
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XVMSUBMSP,
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XVMULDP,
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XVMULSP,
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XVNMADDADP,
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XVNMADDASP,
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XVNMADDMDP,
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XVNMADDMSP,
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XVNMSUBADP,
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XVNMSUBASP,
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XVNMSUBMDP,
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XVNMSUBMSP,
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XVRDPI,
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XVRDPIC,
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XVRDPIM,
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XVRDPIP,
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XVRDPIZ,
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XVREDP,
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XVRESP,
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XVRSPI,
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XVRSPIC,
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XVRSPIM,
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XVRSPIP,
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XVRSPIZ,
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XVRSQRTEDP,
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XVRSQRTESP,
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XVSUBDP,
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XVSUBSP,
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VCFSX,
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VCFSX_0,
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VCFUX,
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VCFUX_0,
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VMHRADDSHS,
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VMLADDUHM,
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VMSUMMBM,
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VMSUMSHM,
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VMSUMSHS,
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VMSUMUBM,
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VMSUMUHM,
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VMSUMUHS,
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VMULESB,
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VMULESH,
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VMULESW,
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VMULEUB,
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VMULEUH,
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VMULEUW,
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VMULOSB,
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VMULOSH,
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VMULOSW,
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VMULOUB,
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VMULOUH,
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VMULOUW,
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VMULUWM,
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VSUM2SWS,
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VSUM4SBS,
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VSUM4SHS,
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VSUM4UBS,
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VSUMSWS
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)>;
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// 7 cycle Restricted DP operation. One DP unit, one EXEC pipeline and all three
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// dispatch units for the superslice.
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def : InstRW<[P9_DP_7C, IP_EXEC_1C, DISP_1C, DISP_1C, DISP_1C],
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(instrs
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FRSP,
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FRIND,
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FRINS,
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FRIPD,
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FRIPS,
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FRIZD,
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FRIZS,
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FRIMD,
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FRIMS,
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FRE,
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FRES,
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FRSQRTE,
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FRSQRTES,
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FMADDS,
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FMADD,
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FMSUBS,
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FMSUB,
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FNMADDS,
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FNMADD,
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FNMSUBS,
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FNMSUB,
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FSELD,
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FSELS,
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FADDS,
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FMULS,
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FMUL,
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FSUBS,
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FCFID,
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FCTID,
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FCTIDZ,
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FCFIDU,
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FCFIDS,
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FCFIDUS,
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FCTIDUZ,
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FCTIWUZ,
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FCTIW,
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FCTIWZ,
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XSMADDADP,
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XSMADDASP,
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XSMADDMDP,
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XSMADDMSP,
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XSMSUBADP,
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XSMSUBASP,
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XSMSUBMDP,
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XSMSUBMSP,
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XSMULDP,
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XSMULSP,
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XSNMADDADP,
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XSNMADDASP,
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XSNMADDMDP,
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XSNMADDMSP,
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XSNMSUBADP,
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XSNMSUBASP,
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XSNMSUBMDP,
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XSNMSUBMSP
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)>;
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// 7 cycle Restricted DP operation and one 2 cycle ALU operation.
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// The DP is restricted so we need a full 5 dispatches.
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def : InstRW<[P9_DPOpAndALUOp_9C, IP_EXEC_1C, IP_EXEC_1C,
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DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
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(instrs
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FMULo,
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FMADDo,
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FMSUBo,
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FNMADDo,
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FNMSUBo
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)>;
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// 7 cycle DP operation. One DP unit, one EXEC pipeline and two dispatch units.
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def : InstRW<[P9_DP_7C, IP_EXEC_1C, DISP_1C, DISP_1C],
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(instrs
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XSADDDP,
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XSADDSP,
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XSCVDPHP,
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XSCVDPSP,
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XSCVDPSXDS,
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XSCVDPSXDSs,
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XSCVDPSXWS,
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XSCVDPUXDS,
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XSCVDPUXDSs,
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XSCVDPUXWS,
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XSCVHPDP,
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XSCVSPDP,
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XSCVSXDDP,
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XSCVSXDSP,
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XSCVUXDDP,
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XSCVUXDSP,
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XSRDPI,
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XSRDPIC,
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XSRDPIM,
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XSRDPIP,
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XSRDPIZ,
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XSREDP,
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XSRESP,
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//XSRSP,
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XSRSQRTEDP,
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XSRSQRTESP,
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XSSUBDP,
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XSSUBSP,
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XSCVDPSPN
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)>;
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|
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// Three Cycle PM operation. Only one PM unit per superslice so we use the whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_PM_3C, IP_EXECO_1C, IP_EXECE_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
VBPERMQ,
|
|
VCLZLSBB,
|
|
VCTZLSBB,
|
|
VEXTRACTD,
|
|
VEXTRACTUB,
|
|
VEXTRACTUH,
|
|
VEXTRACTUW,
|
|
VEXTUBLX,
|
|
VEXTUBRX,
|
|
VEXTUHLX,
|
|
VEXTUHRX,
|
|
VEXTUWLX,
|
|
VEXTUWRX,
|
|
VGBBD,
|
|
VINSERTB,
|
|
VINSERTD,
|
|
VINSERTH,
|
|
VINSERTW,
|
|
VMRGHB,
|
|
VMRGHH,
|
|
VMRGHW,
|
|
VMRGLB,
|
|
VMRGLH,
|
|
VMRGLW,
|
|
VPERM,
|
|
VPERMR,
|
|
VPERMXOR,
|
|
VPKPX,
|
|
VPKSDSS,
|
|
VPKSDUS,
|
|
VPKSHSS,
|
|
VPKSHUS,
|
|
VPKSWSS,
|
|
VPKSWUS,
|
|
VPKUDUM,
|
|
VPKUDUS,
|
|
VPKUHUM,
|
|
VPKUHUS,
|
|
VPKUWUM,
|
|
VPKUWUS,
|
|
VPRTYBQ,
|
|
VSL,
|
|
VSLDOI,
|
|
VSLO,
|
|
VSLV,
|
|
VSPLTB,
|
|
VSPLTBs,
|
|
VSPLTH,
|
|
VSPLTHs,
|
|
VSPLTISB,
|
|
VSPLTISH,
|
|
VSPLTISW,
|
|
VSPLTW,
|
|
VSR,
|
|
VSRO,
|
|
VSRV,
|
|
VUPKHPX,
|
|
VUPKHSB,
|
|
VUPKHSH,
|
|
VUPKHSW,
|
|
VUPKLPX,
|
|
VUPKLSB,
|
|
VUPKLSH,
|
|
VUPKLSW,
|
|
XXBRD,
|
|
XXBRH,
|
|
XXBRQ,
|
|
XXBRW,
|
|
XXEXTRACTUW,
|
|
XXINSERTW,
|
|
XXMRGHW,
|
|
XXMRGLW,
|
|
XXPERM,
|
|
XXPERMR,
|
|
XXSLDWI,
|
|
XXSPLTIB,
|
|
XXSPLTW,
|
|
XXSPLTWs,
|
|
XXPERMDI,
|
|
XXPERMDIs,
|
|
VADDCUQ,
|
|
VADDECUQ,
|
|
VADDEUQM,
|
|
VADDUQM,
|
|
VMUL10CUQ,
|
|
VMUL10ECUQ,
|
|
VMUL10EUQ,
|
|
VMUL10UQ,
|
|
VSUBCUQ,
|
|
VSUBECUQ,
|
|
VSUBEUQM,
|
|
VSUBUQM,
|
|
XSCMPEXPQP,
|
|
XSCMPOQP,
|
|
XSCMPUQP,
|
|
XSTSTDCQP,
|
|
XSXSIGQP
|
|
)>;
|
|
|
|
// 12 Cycle DFU operation. Only one DFU unit per CPU so we use a whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_DFU_12C, IP_EXECE_1C, IP_EXECO_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XSADDQP,
|
|
XSADDQPO,
|
|
XSCVDPQP,
|
|
XSCVQPDP,
|
|
XSCVQPDPO,
|
|
XSCVQPSDZ,
|
|
XSCVQPSWZ,
|
|
XSCVQPUDZ,
|
|
XSCVQPUWZ,
|
|
XSCVSDQP,
|
|
XSCVUDQP,
|
|
XSRQPI,
|
|
XSRQPXP,
|
|
XSSUBQP,
|
|
XSSUBQPO
|
|
)>;
|
|
|
|
// 24 Cycle DFU operation. Only one DFU unit per CPU so we use a whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_DFU_24C, IP_EXECE_1C, IP_EXECO_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XSMADDQP,
|
|
XSMADDQPO,
|
|
XSMSUBQP,
|
|
XSMSUBQPO,
|
|
XSMULQP,
|
|
XSMULQPO,
|
|
XSNMADDQP,
|
|
XSNMADDQPO,
|
|
XSNMSUBQP,
|
|
XSNMSUBQPO
|
|
)>;
|
|
|
|
// 58 Cycle DFU operation. Only one DFU unit per CPU so we use a whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_DFU_58C, IP_EXECE_1C, IP_EXECO_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XSDIVQP,
|
|
XSDIVQPO
|
|
)>;
|
|
|
|
// 76 Cycle DFU operation. Only one DFU unit per CPU so we use a whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_DFU_76C, IP_EXECE_1C, IP_EXECO_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XSSQRTQP,
|
|
XSSQRTQPO
|
|
)>;
|
|
|
|
// 5 Cycle load uses a single slice.
|
|
def : InstRW<[P9_LS_5C, IP_AGEN_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
LXSDX,
|
|
LXVD2X,
|
|
LXSIWZX,
|
|
LXV,
|
|
LXVX,
|
|
LXSD,
|
|
DFLOADf64,
|
|
XFLOADf64
|
|
)>;
|
|
|
|
// 4 Cycle load uses a single slice.
|
|
def : InstRW<[P9_LS_4C, IP_AGEN_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
COPY
|
|
)>;
|
|
|
|
// 4 Cycle Restricted load uses a single slice but the dispatch for the whole
|
|
// superslice.
|
|
def : InstRW<[P9_LS_4C, IP_AGEN_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
LFIWZX,
|
|
LFDX,
|
|
LFD
|
|
)>;
|
|
|
|
// Cracked Restricted Load instruction.
|
|
// Requires consecutive Load and ALU pieces totaling 6 cycles. The Load and ALU
|
|
// operations cannot be done at the same time and so their latencies are added.
|
|
// Full 6 dispatches are required as this is both cracked and restricted.
|
|
def : InstRW<[P9_LoadAndALUOp_6C, IP_EXEC_1C, IP_AGEN_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
LFIWAX,
|
|
LFSX,
|
|
LFS
|
|
)>;
|
|
|
|
// Cracked Load instruction.
|
|
// Requires consecutive Load and ALU pieces totaling 7 cycles. The Load and ALU
|
|
// operations cannot be done at the same time and so their latencies are added.
|
|
// Full 4 dispatches are required as this is a cracked instruction.
|
|
def : InstRW<[P9_LoadAndALUOp_7C, IP_AGEN_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
LXSSPX,
|
|
LXSIWAX,
|
|
LXSSP,
|
|
DFLOADf32,
|
|
XFLOADf32,
|
|
LIWAX,
|
|
LIWZX
|
|
)>;
|
|
|
|
// Cracked Load that requires the PM resource.
|
|
// Since the Load and the PM cannot be done at the same time the latencies are
|
|
// added. Requires 8 cycles.
|
|
// Since the PM requires the full superslice we need both EXECE, EXECO pipelines
|
|
// as well as 3 dispatches for the PM. The Load requires the remaining 2
|
|
// dispatches.
|
|
def : InstRW<[P9_LoadAndPMOp_8C, IP_AGEN_1C, IP_EXECE_1C, IP_EXECO_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
LXVDSX,
|
|
LXVWSX,
|
|
LXVW4X
|
|
)>;
|
|
|
|
// Single slice Restricted store operation. The restricted operation requires
|
|
// all three dispatches for the superslice.
|
|
def : InstRW<[P9_LS_1C, IP_EXEC_1C, IP_AGEN_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
STFS,
|
|
STFD,
|
|
STFIWX,
|
|
STFSX,
|
|
STFDX,
|
|
STXSDX,
|
|
STXSSPX,
|
|
STXSIWX,
|
|
DFSTOREf32,
|
|
DFSTOREf64,
|
|
XFSTOREf32,
|
|
XFSTOREf64,
|
|
STIWX
|
|
)>;
|
|
|
|
// Store operation that requires the whole superslice.
|
|
def : InstRW<[P9_LS_1C, IP_EXECE_1C, IP_EXECO_1C, IP_AGEN_1C,
|
|
DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
STXVD2X,
|
|
STXVW4X
|
|
)>;
|
|
|
|
|
|
// 16 Cycle DIV operation. Only one DIV unit per superslice so we use the whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_DIV_16C_8, IP_EXECO_1C, IP_EXECE_1C,
|
|
DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
DIVW,
|
|
DIVWU,
|
|
MODSW
|
|
)>;
|
|
|
|
// 24 Cycle DIV operation. Only one DIV unit per superslice so we use the whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_DIV_24C_8, IP_EXECO_1C, IP_EXECE_1C,
|
|
DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
DIVWE,
|
|
DIVD,
|
|
DIVWEU,
|
|
DIVDU,
|
|
MODSD,
|
|
MODUD,
|
|
MODUW
|
|
)>;
|
|
|
|
// 40 Cycle DIV operation. Only one DIV unit per superslice so we use the whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_DIV_40C_8, IP_EXECO_1C, IP_EXECE_1C,
|
|
DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
DIVDE,
|
|
DIVDEU
|
|
)>;
|
|
|
|
// Cracked DIV and ALU operation. Requires one full slice for the ALU operation
|
|
// and one full superslice for the DIV operation since there is only one DIV
|
|
// per superslice. Latency of DIV plus ALU is 26.
|
|
def : InstRW<[P9_IntDivAndALUOp_26C_8, IP_EXECE_1C, IP_EXECO_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
DIVDo,
|
|
DIVDUo,
|
|
DIVWEo,
|
|
DIVWEUo
|
|
)>;
|
|
|
|
// Cracked DIV and ALU operation. Requires one full slice for the ALU operation
|
|
// and one full superslice for the DIV operation since there is only one DIV
|
|
// per superslice. Latency of DIV plus ALU is 42.
|
|
def : InstRW<[P9_IntDivAndALUOp_42C_8, IP_EXECE_1C, IP_EXECO_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
DIVDEo,
|
|
DIVDEUo
|
|
)>;
|
|
|
|
// CR access instructions in _BrMCR, IIC_BrMCRX.
|
|
|
|
// Cracked, restricted, ALU operations.
|
|
// Here the two ALU ops can actually be done in parallel and therefore the
|
|
// latencies are not added together. Otherwise this is like having two
|
|
// instructions running together on two pipelines and 6 dispatches.
|
|
// ALU ops are 2 cycles each.
|
|
def : InstRW<[P9_ALU_2C, P9_ALU_2C, IP_EXEC_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
MTOCRF,
|
|
MTOCRF8,
|
|
MTCRF,
|
|
MTCRF8
|
|
)>;
|
|
|
|
// Cracked, restricted, ALU operations.
|
|
// Here the two ALU ops can actually be done in parallel and therefore the
|
|
// latencies are not added together. Otherwise this is like having two
|
|
// instructions running together on two pipelines and 6 dispatches.
|
|
// ALU ops are 3 cycles each.
|
|
def : InstRW<[P9_ALU_3C, P9_ALU_3C, IP_EXEC_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
MCRFS
|
|
)>;
|
|
|
|
// FP Div instructions in IIC_FPDivD and IIC_FPDivS.
|
|
|
|
// 33 Cycle DP Instruction Restricted. Takes one slice and 3 dispatches.
|
|
def : InstRW<[P9_DP_33C_8, IP_EXEC_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
FDIV
|
|
)>;
|
|
|
|
// 33 Cycle DP Instruction Restricted and Cracked with 2 Cycle ALU.
|
|
def : InstRW<[P9_DPOpAndALUOp_35C_8, IP_EXEC_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
FDIVo
|
|
)>;
|
|
|
|
// 33 Cycle DP Instruction. Takes one slice and 2 dispatches.
|
|
def : InstRW<[P9_DP_33C_8, IP_EXEC_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XSDIVDP
|
|
)>;
|
|
|
|
// 22 Cycle DP Instruction Restricted. Takes one slice and 3 dispatches.
|
|
def : InstRW<[P9_DP_22C_5, IP_EXEC_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
FDIVS
|
|
)>;
|
|
|
|
// 22 Cycle DP Instruction Restricted and Cracked with 2 Cycle ALU.
|
|
def : InstRW<[P9_DPOpAndALUOp_24C_5, IP_EXEC_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
FDIVSo
|
|
)>;
|
|
|
|
// 22 Cycle DP Instruction. Takes one slice and 2 dispatches.
|
|
def : InstRW<[P9_DP_22C_5, IP_EXEC_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XSDIVSP
|
|
)>;
|
|
|
|
// 24 Cycle DP Vector Instruction. Takes one full superslice.
|
|
// Includes both EXECE, EXECO pipelines and all 3 dispatches for the given
|
|
// superslice.
|
|
def : InstRW<[P9_DPE_24C_8, P9_DPO_24C_8, IP_EXECE_1C, IP_EXECO_1C,
|
|
DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XVDIVSP
|
|
)>;
|
|
|
|
// 33 Cycle DP Vector Instruction. Takes one full superslice.
|
|
// Includes both EXECE, EXECO pipelines and all 3 dispatches for the given
|
|
// superslice.
|
|
def : InstRW<[P9_DPE_33C_8, P9_DPO_33C_8, IP_EXECE_1C, IP_EXECO_1C,
|
|
DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
XVDIVDP
|
|
)>;
|
|
|
|
// Load instructions in IIC_LdStLFDU and IIC_LdStLFDUX.
|
|
|
|
// Instruction cracked into three pieces. One Load and two ALU operations.
|
|
// The Load and one of the ALU ops cannot be run at the same time and so the
|
|
// latencies are added together for 6 cycles. The remainaing ALU is 2 cycles.
|
|
// Both the load and the ALU that depends on it are restricted and so they take
|
|
// a total of 6 dispatches. The final 2 dispatches come from the second ALU op.
|
|
// The two EXEC pipelines are for the 2 ALUs while the AGEN is for the load.
|
|
def : InstRW<[P9_LoadAndALUOp_6C, P9_ALU_2C,
|
|
IP_AGEN_1C, IP_EXEC_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
LFSU,
|
|
LFSUX
|
|
)>;
|
|
|
|
// Cracked instruction made up of a Load and an ALU. The ALU does not depend on
|
|
// the load and so it can be run at the same time as the load. The load is also
|
|
// restricted. 3 dispatches are from the restricted load while the other two
|
|
// are from the ALU. The AGEN pipeline is from the load and the EXEC pipeline
|
|
// is required for the ALU.
|
|
def : InstRW<[P9_LS_4C, P9_ALU_2C, IP_AGEN_1C, IP_EXEC_1C,
|
|
DISP_1C, DISP_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
LFDU,
|
|
LFDUX
|
|
)>;
|
|
|
|
// Crypto Instructions
|
|
|
|
// 6 Cycle CY operation. Only one CY unit per CPU so we use a whole
|
|
// superslice. That includes both exec pipelines (EXECO, EXECE) and all three
|
|
// dispatches.
|
|
def : InstRW<[P9_CY_6C, IP_EXECO_1C, IP_EXECE_1C, DISP_1C, DISP_1C, DISP_1C],
|
|
(instrs
|
|
VPMSUMB,
|
|
VPMSUMD,
|
|
VPMSUMH,
|
|
VPMSUMW,
|
|
VCIPHER,
|
|
VCIPHERLAST,
|
|
VNCIPHER,
|
|
VNCIPHERLAST,
|
|
VSBOX
|
|
)>;
|