derek.holloway
7502bf64a4
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140 lines
6.6 KiB
ArmAsm
140 lines
6.6 KiB
ArmAsm
# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
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# RUN: llvm-mca -mtriple=riscv64 -mcpu=mips-p8700 -timeline -iterations=1 < %s | FileCheck %s
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# A few instructions to test the pipeline:
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# - Integer division (IDiv) exercises the p8700GpDiv resource.
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# - Integer multiplication (IMul) uses p8700GpMul.
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# - Floating-point multiplication uses the FPUL pipeline.
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# - Load/Store instructions use the LSU pipeline.
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# - Simple ALU instructions test the p8700WriteEitherALU and p8700IssueAL2 resources.
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# - A jump instruction to test the CTI pipeline.
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# Integer division: a0 = a1 / a2
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# Exercises p8700GpDiv resource.
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div a0, a1, a2
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# Integer multiplication: a4 = a1 * a2
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# Exercises p8700GpMul resource.
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mul a4, a1, a2
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# Floating-point multiply: f1 = f2 * f3 (single precision)
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# Exercises p8700FpuLong + p8700FpuApu resources.
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fmul.s f1, f2, f3
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# Load/Store: load word from a0 into a3, then store a3 into a1
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# Exercises p8700IssueLSU resource.
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lw a3, 0(a0)
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sw a3, 0(a1)
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# Simple ALU operations (adding two registers, rotating bits)
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# Exercises p8700WriteEitherALU.
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add a5, a1, a2
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ror a6, a5, a2
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# A jump instruction: a simple forward jump
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# Exercises p8700IssueCTI resource.
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jal x0, .Lend
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add a7, a4, a0 # Instruction after jump (won't execute)
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.Lend:
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nop
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# CHECK: Iterations: 1
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# CHECK-NEXT: Instructions: 10
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# CHECK-NEXT: Total Cycles: 17
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# CHECK-NEXT: Total uOps: 10
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# CHECK: Dispatch Width: 4
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# CHECK-NEXT: uOps Per Cycle: 0.59
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# CHECK-NEXT: IPC: 0.59
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# CHECK-NEXT: Block RThroughput: 7.0
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# CHECK: Instruction Info:
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# CHECK-NEXT: [1]: #uOps
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# CHECK-NEXT: [2]: Latency
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# CHECK-NEXT: [3]: RThroughput
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# CHECK-NEXT: [4]: MayLoad
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# CHECK-NEXT: [5]: MayStore
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# CHECK-NEXT: [6]: HasSideEffects (U)
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# CHECK: [1] [2] [3] [4] [5] [6] Instructions:
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# CHECK-NEXT: 1 7 7.00 div a0, a1, a2
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# CHECK-NEXT: 1 4 1.00 mul a4, a1, a2
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# CHECK-NEXT: 1 5 1.00 fmul.s ft1, ft2, ft3
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# CHECK-NEXT: 1 4 1.00 * lw a3, 0(a0)
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# CHECK-NEXT: 1 3 1.00 * sw a3, 0(a1)
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# CHECK-NEXT: 1 1 0.50 add a5, a1, a2
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# CHECK-NEXT: 1 1 0.50 ror a6, a5, a2
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# CHECK-NEXT: 1 1 1.00 j .Lend
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# CHECK-NEXT: 1 1 0.50 add a7, a4, a0
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# CHECK-NEXT: 1 0 0.50 nop
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# CHECK: Resources:
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# CHECK-NEXT: [0.0] - p8700AGQ
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# CHECK-NEXT: [0.1] - p8700AGQ
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# CHECK-NEXT: [0.2] - p8700AGQ
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# CHECK-NEXT: [1] - p8700ALQ
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# CHECK-NEXT: [2.0] - p8700FPQ
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# CHECK-NEXT: [2.1] - p8700FPQ
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# CHECK-NEXT: [2.2] - p8700FPQ
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# CHECK-NEXT: [3] - p8700FpuApu
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# CHECK-NEXT: [4] - p8700FpuLong
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# CHECK-NEXT: [5] - p8700GpDiv
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# CHECK-NEXT: [6] - p8700GpMul
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# CHECK-NEXT: [7] - p8700IssueAL2
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# CHECK-NEXT: [8] - p8700IssueCTI
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# CHECK-NEXT: [9] - p8700IssueFPUL
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# CHECK-NEXT: [10] - p8700IssueFPUS
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# CHECK-NEXT: [11] - p8700IssueLSU
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# CHECK: Resource pressure per iteration:
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# CHECK-NEXT: [0.0] [0.1] [0.2] [1] [2.0] [2.1] [2.2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
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# CHECK-NEXT: 1.00 1.00 1.00 2.00 - - - 1.00 1.00 7.00 1.00 2.00 1.00 - - 2.00
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# CHECK: Resource pressure by instruction:
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# CHECK-NEXT: [0.0] [0.1] [0.2] [1] [2.0] [2.1] [2.2] [3] [4] [5] [6] [7] [8] [9] [10] [11] Instructions:
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# CHECK-NEXT: - - - - - - - - - 7.00 - - - - - - div a0, a1, a2
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# CHECK-NEXT: - - - - - - - - - - 1.00 - - - - - mul a4, a1, a2
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# CHECK-NEXT: - - - - - - - 1.00 1.00 - - - - - - - fmul.s ft1, ft2, ft3
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# CHECK-NEXT: - 1.00 - - - - - - - - - - - - - 1.00 lw a3, 0(a0)
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# CHECK-NEXT: 1.00 - - - - - - - - - - - - - - 1.00 sw a3, 0(a1)
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# CHECK-NEXT: - - - - - - - - - - - 1.00 - - - - add a5, a1, a2
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# CHECK-NEXT: - - - 1.00 - - - - - - - - - - - - ror a6, a5, a2
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# CHECK-NEXT: - - 1.00 - - - - - - - - - 1.00 - - - j .Lend
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# CHECK-NEXT: - - - 1.00 - - - - - - - - - - - - add a7, a4, a0
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# CHECK-NEXT: - - - - - - - - - - - 1.00 - - - - nop
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# CHECK: Timeline view:
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# CHECK-NEXT: 0123456
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# CHECK-NEXT: Index 0123456789
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# CHECK: [0,0] DeeeeeeeER. .. div a0, a1, a2
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# CHECK-NEXT: [0,1] DeeeeE---R. .. mul a4, a1, a2
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# CHECK-NEXT: [0,2] DeeeeeE--R. .. fmul.s ft1, ft2, ft3
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# CHECK-NEXT: [0,3] D=======eeeeER .. lw a3, 0(a0)
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# CHECK-NEXT: [0,4] .D==========eeeER sw a3, 0(a1)
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# CHECK-NEXT: [0,5] .DeE------------R add a5, a1, a2
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# CHECK-NEXT: [0,6] .D=eE-----------R ror a6, a5, a2
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# CHECK-NEXT: [0,7] .DeE------------R j .Lend
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# CHECK-NEXT: [0,8] . D=====eE------R add a7, a4, a0
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# CHECK-NEXT: [0,9] . DE------------R nop
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# CHECK: Average Wait times (based on the timeline view):
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# CHECK-NEXT: [0]: Executions
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# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
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# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
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# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
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# CHECK: [0] [1] [2] [3]
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# CHECK-NEXT: 0. 1 1.0 1.0 0.0 div a0, a1, a2
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# CHECK-NEXT: 1. 1 1.0 1.0 3.0 mul a4, a1, a2
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# CHECK-NEXT: 2. 1 1.0 1.0 2.0 fmul.s ft1, ft2, ft3
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# CHECK-NEXT: 3. 1 8.0 0.0 0.0 lw a3, 0(a0)
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# CHECK-NEXT: 4. 1 11.0 0.0 0.0 sw a3, 0(a1)
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# CHECK-NEXT: 5. 1 1.0 1.0 12.0 add a5, a1, a2
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# CHECK-NEXT: 6. 1 2.0 0.0 11.0 ror a6, a5, a2
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# CHECK-NEXT: 7. 1 1.0 1.0 12.0 j .Lend
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# CHECK-NEXT: 8. 1 6.0 0.0 6.0 add a7, a4, a0
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# CHECK-NEXT: 9. 1 1.0 1.0 12.0 nop
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# CHECK-NEXT: 10 3.3 0.6 5.8 <total>
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