| //==-- SystemZSchedule.td - SystemZ Scheduling Definitions ----*- tblgen -*-==// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Scheduler resources |
| |
| // These resources are used to express decoder grouping rules. The number of |
| // decoder slots needed by an instructions is normally one, but there are |
| // exceptions. |
| def NormalGr : SchedWrite; |
| def Cracked : SchedWrite; |
| def GroupAlone : SchedWrite; |
| def BeginGroup : SchedWrite; |
| def EndGroup : SchedWrite; |
| |
| // A SchedWrite added to other SchedWrites to make LSU latency parameterizable. |
| def LSULatency : SchedWrite; |
| |
| // Operand WriteLatencies. |
| foreach L = 1 - 30 in def "WLat"#L : SchedWrite; |
| |
| foreach L = 1 - 16 in |
| def "WLat"#L#"LSU" : WriteSequence<[!cast<SchedWrite>("WLat"#L), |
| LSULatency]>; |
| |
| // ReadAdvances, used for the register operand next to a memory operand, |
| // modelling that the register operand is needed later than the address |
| // operands. |
| def RegReadAdv : SchedRead; |
| |
| foreach Num = ["", "2", "3", "4", "5", "6"] in { |
| // Fixed-point units |
| def "FXa"#Num : SchedWrite; |
| def "FXb"#Num : SchedWrite; |
| def "FXU"#Num : SchedWrite; |
| // Load/store unit |
| def "LSU"#Num : SchedWrite; |
| // Vector sub units (z13 and later) |
| def "VecBF"#Num : SchedWrite; |
| def "VecDF"#Num : SchedWrite; |
| def "VecDFX"#Num : SchedWrite; |
| def "VecMul"#Num : SchedWrite; |
| def "VecStr"#Num : SchedWrite; |
| def "VecXsPm"#Num : SchedWrite; |
| // Floating point unit (zEC12 and earlier) |
| def "FPU"#Num : SchedWrite; |
| def "DFU"#Num : SchedWrite; |
| } |
| |
| def VecFPd : SchedWrite; // Blocking BFP div/sqrt unit. |
| |
| def VBU : SchedWrite; // Virtual branching unit |
| |
| def MCD : SchedWrite; // Millicode |
| |
| include "SystemZScheduleZ14.td" |
| include "SystemZScheduleZ13.td" |
| include "SystemZScheduleZEC12.td" |
| include "SystemZScheduleZ196.td" |
