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=x86-64 -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.
xorps %xmm0, %xmm0
movaps %xmm0, %xmm1
addps %xmm1, %xmm1
# CHECK: Iterations: 3
# CHECK-NEXT: Instructions: 9
# CHECK-NEXT: Total Cycles: 9
# CHECK-NEXT: Total uOps: 9
# CHECK: Dispatch Width: 4
# CHECK-NEXT: uOps Per Cycle: 1.00
# CHECK-NEXT: IPC: 1.00
# CHECK-NEXT: Block RThroughput: 1.0
# 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 0 0.25 xorps %xmm0, %xmm0
# CHECK-NEXT: 1 1 1.00 movaps %xmm0, %xmm1
# CHECK-NEXT: 1 3 1.00 addps %xmm1, %xmm1
# CHECK: Register File statistics:
# CHECK-NEXT: Total number of mappings created: 9
# CHECK-NEXT: Max number of mappings used: 8
# 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: - - - 1.00 - 1.00 - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6.0] [6.1] Instructions:
# CHECK-NEXT: - - - - - - - - xorps %xmm0, %xmm0
# CHECK-NEXT: - - - - - 1.00 - - movaps %xmm0, %xmm1
# CHECK-NEXT: - - - 1.00 - - - - addps %xmm1, %xmm1
# CHECK: Timeline view:
# CHECK-NEXT: Index 012345678
# CHECK: [0,0] DR . . xorps %xmm0, %xmm0
# CHECK-NEXT: [0,1] DeER . . movaps %xmm0, %xmm1
# CHECK-NEXT: [0,2] D=eeeER . addps %xmm1, %xmm1
# CHECK-NEXT: [1,0] D-----R . xorps %xmm0, %xmm0
# CHECK-NEXT: [1,1] .DeE--R . movaps %xmm0, %xmm1
# CHECK-NEXT: [1,2] .D=eeeER. addps %xmm1, %xmm1
# CHECK-NEXT: [2,0] .D-----R. xorps %xmm0, %xmm0
# CHECK-NEXT: [2,1] .D=eE--R. movaps %xmm0, %xmm1
# CHECK-NEXT: [2,2] . D=eeeER addps %xmm1, %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. 3 0.0 0.0 3.3 xorps %xmm0, %xmm0
# CHECK-NEXT: 1. 3 1.3 1.3 1.3 movaps %xmm0, %xmm1
# CHECK-NEXT: 2. 3 2.0 0.0 0.0 addps %xmm1, %xmm1
# CHECK-NEXT: 3 1.1 0.4 1.6 <total>