bottleneck-hints-2.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=btver2 -iterations=100 -timeline -timeline-max-iterations=1 -bottleneck-analysis < %s | FileCheck %s
vhaddps %xmm0, %xmm0, %xmm1
# CHECK: Iterations: 100
# CHECK-NEXT: Instructions: 100
# CHECK-NEXT: Total Cycles: 106
# CHECK-NEXT: Total uOps: 100
# CHECK: Dispatch Width: 2
# CHECK-NEXT: uOps Per Cycle: 0.94
# CHECK-NEXT: IPC: 0.94
# CHECK-NEXT: Block RThroughput: 1.0
# CHECK: Cycles with backend pressure increase [ 76.42% ]
# CHECK-NEXT: Throughput Bottlenecks:
# CHECK-NEXT: Resource Pressure [ 76.42% ]
# CHECK-NEXT: - JFPA [ 76.42% ]
# CHECK-NEXT: - JFPU0 [ 76.42% ]
# CHECK-NEXT: Data Dependencies: [ 0.00% ]
# CHECK-NEXT: - Register Dependencies [ 0.00% ]
# CHECK-NEXT: - Memory Dependencies [ 0.00% ]
# CHECK: Critical sequence based on the simulation:
# CHECK: Instruction Dependency Information
# CHECK-NEXT: +----< 0. vhaddps %xmm0, %xmm0, %xmm1
# CHECK-NEXT: |
# CHECK-NEXT: | < loop carried >
# CHECK-NEXT: |
# CHECK-NEXT: +----> 0. vhaddps %xmm0, %xmm0, %xmm1 ## RESOURCE interference: JFPA [ probability: 99% ]
# CHECK-NEXT: |
# CHECK-NEXT: | < loop carried >
# CHECK-NEXT: |
# CHECK-NEXT: +----> 0. vhaddps %xmm0, %xmm0, %xmm1 ## RESOURCE interference: JFPA [ probability: 99% ]
# 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 4 1.00 vhaddps %xmm0, %xmm0, %xmm1
# CHECK: Resources:
# CHECK-NEXT: [0] - JALU0
# CHECK-NEXT: [1] - JALU1
# CHECK-NEXT: [2] - JDiv
# CHECK-NEXT: [3] - JFPA
# CHECK-NEXT: [4] - JFPM
# CHECK-NEXT: [5] - JFPU0
# CHECK-NEXT: [6] - JFPU1
# CHECK-NEXT: [7] - JLAGU
# CHECK-NEXT: [8] - JMul
# CHECK-NEXT: [9] - JSAGU
# CHECK-NEXT: [10] - JSTC
# CHECK-NEXT: [11] - JVALU0
# CHECK-NEXT: [12] - JVALU1
# CHECK-NEXT: [13] - JVIMUL
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]
# CHECK-NEXT: - - - 1.00 - 1.00 - - - - - - - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions:
# CHECK-NEXT: - - - 1.00 - 1.00 - - - - - - - - vhaddps %xmm0, %xmm0, %xmm1
# CHECK: Timeline view:
# CHECK-NEXT: Index 0123456
# CHECK: [0,0] DeeeeER vhaddps %xmm0, %xmm0, %xmm1
# 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 vhaddps %xmm0, %xmm0, %xmm1