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=bdver2 -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: 13
# CHECK-NEXT: Total uOps: 9
# CHECK: Dispatch Width: 4
# CHECK-NEXT: uOps Per Cycle: 0.69
# CHECK-NEXT: IPC: 0.69
# 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 0.25 vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: 1 1 1.00 vmovaps %xmm0, %xmm1
# CHECK-NEXT: 1 5 1.00 vaddps %xmm1, %xmm1, %xmm2
# CHECK: Register File statistics:
# CHECK-NEXT: Total number of mappings created: 6
# CHECK-NEXT: Max number of mappings used: 6
# CHECK: * Register File #1 -- PdFpuPRF:
# CHECK-NEXT: Number of physical registers: 160
# CHECK-NEXT: Total number of mappings created: 6
# CHECK-NEXT: Max number of mappings used: 6
# CHECK: * Register File #2 -- PdIntegerPRF:
# CHECK-NEXT: Number of physical registers: 96
# CHECK-NEXT: Total number of mappings created: 0
# CHECK-NEXT: Max number of mappings used: 0
# CHECK: Resources:
# CHECK-NEXT: [0.0] - PdAGLU01
# CHECK-NEXT: [0.1] - PdAGLU01
# CHECK-NEXT: [1] - PdBranch
# CHECK-NEXT: [2] - PdCount
# CHECK-NEXT: [3] - PdDiv
# CHECK-NEXT: [4] - PdEX0
# CHECK-NEXT: [5] - PdEX1
# CHECK-NEXT: [6] - PdFPCVT
# CHECK-NEXT: [7.0] - PdFPFMA
# CHECK-NEXT: [7.1] - PdFPFMA
# CHECK-NEXT: [8.0] - PdFPMAL
# CHECK-NEXT: [8.1] - PdFPMAL
# CHECK-NEXT: [9] - PdFPMMA
# CHECK-NEXT: [10] - PdFPSTO
# CHECK-NEXT: [11] - PdFPU0
# CHECK-NEXT: [12] - PdFPU1
# CHECK-NEXT: [13] - PdFPU2
# CHECK-NEXT: [14] - PdFPU3
# CHECK-NEXT: [15] - PdFPXBR
# CHECK-NEXT: [16.0] - PdLoad
# CHECK-NEXT: [16.1] - PdLoad
# CHECK-NEXT: [17] - PdMul
# CHECK-NEXT: [18] - PdStore
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18]
# CHECK-NEXT: - - - - - - - - 1.33 1.67 - - - - 1.33 0.67 - - - - - - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18] Instructions:
# CHECK-NEXT: - - - - - - - - - - - - - - - - - - - - - - - vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: - - - - - - - - 0.67 1.33 - - - - 0.33 0.67 - - - - - - - vmovaps %xmm0, %xmm1
# CHECK-NEXT: - - - - - - - - 0.67 0.33 - - - - 1.00 - - - - - - - - vaddps %xmm1, %xmm1, %xmm2
# CHECK: Timeline view:
# CHECK-NEXT: 012
# CHECK-NEXT: Index 0123456789
# CHECK: [0,0] DR . . . vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: [0,1] DeER . . . vmovaps %xmm0, %xmm1
# CHECK-NEXT: [0,2] D=eeeeeER . . vaddps %xmm1, %xmm1, %xmm2
# CHECK-NEXT: [1,0] D-------R . . vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: [1,1] .D=eE---R . . vmovaps %xmm0, %xmm1
# CHECK-NEXT: [1,2] .D===eeeeeER. vaddps %xmm1, %xmm1, %xmm2
# CHECK-NEXT: [2,0] .D---------R. vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: [2,1] .D=eE------R. vmovaps %xmm0, %xmm1
# CHECK-NEXT: [2,2] . D===eeeeeER 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 5.3 vxorps %xmm0, %xmm0, %xmm0
# CHECK-NEXT: 1. 3 1.7 1.7 3.0 vmovaps %xmm0, %xmm1
# CHECK-NEXT: 2. 3 3.3 1.0 0.0 vaddps %xmm1, %xmm1, %xmm2
# CHECK-NEXT: 3 1.7 0.9 2.8 <total>