partial-reg-update-3.s
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# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=znver1 -iterations=1500 -timeline -timeline-max-iterations=6 < %s | FileCheck %s
# The ILP is limited by the false dependency on %dx. So, the mov cannot execute
# in parallel with the add.
add %cx, %dx
mov %ax, %dx
xor %bx, %dx
# CHECK: Iterations: 1500
# CHECK-NEXT: Instructions: 4500
# CHECK-NEXT: Total Cycles: 4503
# CHECK-NEXT: Total uOps: 4500
# CHECK: Dispatch Width: 4
# CHECK-NEXT: uOps Per Cycle: 1.00
# CHECK-NEXT: IPC: 1.00
# CHECK-NEXT: Block RThroughput: 0.8
# CHECK: Instruction Info:
# CHECK-NEXT: [1]: #uOps
# CHECK-NEXT: [2]: Latency
# CHECK-NEXT: [3]: RThroughput
# CHECK-NEXT: [4]: MayLoad
# CHECK-NEXT: [5]: MayStore
# CHECK-NEXT: [6]: HasSideEffects (U)
# CHECK: [1] [2] [3] [4] [5] [6] Instructions:
# CHECK-NEXT: 1 1 0.25 addw %cx, %dx
# CHECK-NEXT: 1 1 0.25 movw %ax, %dx
# CHECK-NEXT: 1 1 0.25 xorw %bx, %dx
# CHECK: Resources:
# CHECK-NEXT: [0] - ZnAGU0
# CHECK-NEXT: [1] - ZnAGU1
# CHECK-NEXT: [2] - ZnALU0
# CHECK-NEXT: [3] - ZnALU1
# CHECK-NEXT: [4] - ZnALU2
# CHECK-NEXT: [5] - ZnALU3
# CHECK-NEXT: [6] - ZnDivider
# CHECK-NEXT: [7] - ZnFPU0
# CHECK-NEXT: [8] - ZnFPU1
# CHECK-NEXT: [9] - ZnFPU2
# CHECK-NEXT: [10] - ZnFPU3
# CHECK-NEXT: [11] - ZnMultiplier
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
# CHECK-NEXT: - - 0.75 0.75 0.75 0.75 - - - - - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] Instructions:
# CHECK-NEXT: - - 0.25 0.25 0.25 0.25 - - - - - - addw %cx, %dx
# CHECK-NEXT: - - 0.25 0.25 0.25 0.25 - - - - - - movw %ax, %dx
# CHECK-NEXT: - - 0.25 0.25 0.25 0.25 - - - - - - xorw %bx, %dx
# CHECK: Timeline view:
# CHECK-NEXT: 0123456789
# CHECK-NEXT: Index 0123456789 0
# CHECK: [0,0] DeER . . . . addw %cx, %dx
# CHECK-NEXT: [0,1] D=eER. . . . movw %ax, %dx
# CHECK-NEXT: [0,2] D==eER . . . xorw %bx, %dx
# CHECK-NEXT: [1,0] D===eER . . . addw %cx, %dx
# CHECK-NEXT: [1,1] .D===eER . . . movw %ax, %dx
# CHECK-NEXT: [1,2] .D====eER . . . xorw %bx, %dx
# CHECK-NEXT: [2,0] .D=====eER. . . addw %cx, %dx
# CHECK-NEXT: [2,1] .D======eER . . movw %ax, %dx
# CHECK-NEXT: [2,2] . D======eER . . xorw %bx, %dx
# CHECK-NEXT: [3,0] . D=======eER . . addw %cx, %dx
# CHECK-NEXT: [3,1] . D========eER . . movw %ax, %dx
# CHECK-NEXT: [3,2] . D=========eER. . xorw %bx, %dx
# CHECK-NEXT: [4,0] . D=========eER . addw %cx, %dx
# CHECK-NEXT: [4,1] . D==========eER . movw %ax, %dx
# CHECK-NEXT: [4,2] . D===========eER . xorw %bx, %dx
# CHECK-NEXT: [5,0] . D============eER . addw %cx, %dx
# CHECK-NEXT: [5,1] . D============eER. movw %ax, %dx
# CHECK-NEXT: [5,2] . D=============eER xorw %bx, %dx
# CHECK: Average Wait times (based on the timeline view):
# CHECK-NEXT: [0]: Executions
# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
# CHECK: [0] [1] [2] [3]
# CHECK-NEXT: 0. 6 7.0 0.2 0.0 addw %cx, %dx
# CHECK-NEXT: 1. 6 7.7 0.0 0.0 movw %ax, %dx
# CHECK-NEXT: 2. 6 8.5 0.0 0.0 xorw %bx, %dx
# CHECK-NEXT: 6 7.7 0.1 0.0 <total>