reg-move-elimination-1.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=3 -timeline -register-file-stats < %s | FileCheck %s
# The register move from XMM0 to XMM1 can be eliminated at register renaming
# stage. So, it should not consume pipeline resources.
vxorps %xmm0, %xmm0, %xmm0
vmovaps %xmm0, %xmm1
vaddps %xmm1, %xmm1, %xmm2
# CHECK: Iterations: 3
# CHECK-NEXT: Instructions: 9
# CHECK-NEXT: Total Cycles: 10
# CHECK-NEXT: Total uOps: 9
# CHECK: Dispatch Width: 2
# CHECK-NEXT: uOps Per Cycle: 0.90
# CHECK-NEXT: IPC: 0.90
# CHECK-NEXT: Block RThroughput: 1.5
# 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 0 0.50 vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: 1 1 0.50 vmovaps %xmm0, %xmm1
# CHECK-NEXT: 1 3 1.00 vaddps %xmm1, %xmm1, %xmm2
# CHECK: Register File statistics:
# CHECK-NEXT: Total number of mappings created: 3
# CHECK-NEXT: Max number of mappings used: 3
# CHECK: * Register File #1 -- JFpuPRF:
# CHECK-NEXT: Number of physical registers: 72
# CHECK-NEXT: Total number of mappings created: 3
# CHECK-NEXT: Max number of mappings used: 3
# CHECK-NEXT: Number of optimizable moves: 3
# CHECK-NEXT: Number of moves eliminated: 3 (100.0%)
# CHECK-NEXT: Number of zero moves: 3 (100.0%)
# CHECK-NEXT: Max moves eliminated per cycle: 1
# CHECK: * Register File #2 -- JIntegerPRF:
# CHECK-NEXT: Number of physical registers: 64
# CHECK-NEXT: Total number of mappings created: 0
# CHECK-NEXT: Max number of mappings used: 0
# 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: - - - - - - - - - - - - - - vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: - - - - - - - - - - - - - - vmovaps %xmm0, %xmm1
# CHECK-NEXT: - - - 1.00 - 1.00 - - - - - - - - vaddps %xmm1, %xmm1, %xmm2
# CHECK: Timeline view:
# CHECK-NEXT: Index 0123456789
# CHECK: [0,0] DR . . vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: [0,1] DR . . vmovaps %xmm0, %xmm1
# CHECK-NEXT: [0,2] .DeeeER . vaddps %xmm1, %xmm1, %xmm2
# CHECK-NEXT: [1,0] .D----R . vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: [1,1] . D----R . vmovaps %xmm0, %xmm1
# CHECK-NEXT: [1,2] . DeeeER . vaddps %xmm1, %xmm1, %xmm2
# CHECK-NEXT: [2,0] . D----R. vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: [2,1] . D----R. vmovaps %xmm0, %xmm1
# CHECK-NEXT: [2,2] . DeeeER vaddps %xmm1, %xmm1, %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. 3 0.0 0.0 2.7 vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: 1. 3 0.0 0.0 2.7 vmovaps %xmm0, %xmm1
# CHECK-NEXT: 2. 3 1.0 1.0 0.0 vaddps %xmm1, %xmm1, %xmm2
# CHECK-NEXT: 3 0.3 0.3 1.8 <total>