one-idioms.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=x86-64 -timeline -timeline-max-iterations=1 -register-file-stats < %s | FileCheck %s
# These are dependency-breaking one-idioms.
# Much like zero-idioms, but they produce ones, and do consume resources.
pcmpeqb %mm2, %mm2
pcmpeqd %mm2, %mm2
pcmpeqw %mm2, %mm2
pcmpeqb %xmm2, %xmm2
pcmpeqd %xmm2, %xmm2
pcmpeqq %xmm2, %xmm2
pcmpeqw %xmm2, %xmm2
# CHECK: Iterations: 100
# CHECK-NEXT: Instructions: 700
# CHECK-NEXT: Total Cycles: 903
# CHECK-NEXT: Total uOps: 700
# CHECK: Dispatch Width: 4
# CHECK-NEXT: uOps Per Cycle: 0.78
# CHECK-NEXT: IPC: 0.78
# CHECK-NEXT: Block RThroughput: 3.0
# 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 3 1.00 pcmpeqb %mm2, %mm2
# CHECK-NEXT: 1 3 1.00 pcmpeqd %mm2, %mm2
# CHECK-NEXT: 1 3 1.00 pcmpeqw %mm2, %mm2
# CHECK-NEXT: 1 1 0.50 pcmpeqb %xmm2, %xmm2
# CHECK-NEXT: 1 1 0.50 pcmpeqd %xmm2, %xmm2
# CHECK-NEXT: 1 1 0.50 pcmpeqq %xmm2, %xmm2
# CHECK-NEXT: 1 1 0.50 pcmpeqw %xmm2, %xmm2
# CHECK: Register File statistics:
# CHECK-NEXT: Total number of mappings created: 700
# CHECK-NEXT: Max number of mappings used: 128
# CHECK: Resources:
# CHECK-NEXT: [0] - SBDivider
# CHECK-NEXT: [1] - SBFPDivider
# CHECK-NEXT: [2] - SBPort0
# CHECK-NEXT: [3] - SBPort1
# CHECK-NEXT: [4] - SBPort4
# CHECK-NEXT: [5] - SBPort5
# CHECK-NEXT: [6.0] - SBPort23
# CHECK-NEXT: [6.1] - SBPort23
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6.0] [6.1]
# CHECK-NEXT: - - - 4.10 - 2.90 - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6.0] [6.1] Instructions:
# CHECK-NEXT: - - - 1.00 - - - - pcmpeqb %mm2, %mm2
# CHECK-NEXT: - - - 1.00 - - - - pcmpeqd %mm2, %mm2
# CHECK-NEXT: - - - 1.00 - - - - pcmpeqw %mm2, %mm2
# CHECK-NEXT: - - - 0.10 - 0.90 - - pcmpeqb %xmm2, %xmm2
# CHECK-NEXT: - - - 0.10 - 0.90 - - pcmpeqd %xmm2, %xmm2
# CHECK-NEXT: - - - 0.11 - 0.89 - - pcmpeqq %xmm2, %xmm2
# CHECK-NEXT: - - - 0.79 - 0.21 - - pcmpeqw %xmm2, %xmm2
# CHECK: Timeline view:
# CHECK-NEXT: 01
# CHECK-NEXT: Index 0123456789
# CHECK: [0,0] DeeeER .. pcmpeqb %mm2, %mm2
# CHECK-NEXT: [0,1] D===eeeER .. pcmpeqd %mm2, %mm2
# CHECK-NEXT: [0,2] D======eeeER pcmpeqw %mm2, %mm2
# CHECK-NEXT: [0,3] DeE--------R pcmpeqb %xmm2, %xmm2
# CHECK-NEXT: [0,4] .DeE-------R pcmpeqd %xmm2, %xmm2
# CHECK-NEXT: [0,5] .D=eE------R pcmpeqq %xmm2, %xmm2
# CHECK-NEXT: [0,6] .D==eE-----R pcmpeqw %xmm2, %xmm2
# 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. 1 1.0 1.0 0.0 pcmpeqb %mm2, %mm2
# CHECK-NEXT: 1. 1 4.0 0.0 0.0 pcmpeqd %mm2, %mm2
# CHECK-NEXT: 2. 1 7.0 0.0 0.0 pcmpeqw %mm2, %mm2
# CHECK-NEXT: 3. 1 1.0 1.0 8.0 pcmpeqb %xmm2, %xmm2
# CHECK-NEXT: 4. 1 1.0 0.0 7.0 pcmpeqd %xmm2, %xmm2
# CHECK-NEXT: 5. 1 2.0 0.0 6.0 pcmpeqq %xmm2, %xmm2
# CHECK-NEXT: 6. 1 3.0 0.0 5.0 pcmpeqw %xmm2, %xmm2
# CHECK-NEXT: 1 2.7 0.3 3.7 <total>