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1# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py2# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s3 4# perf stat reports a throughput of 1.00 IPC for this code snippet.5 6# The ILP is limited by the false dependency on %dx. So, the mov cannot execute7# in parallel with the add.8 9add %cx, %dx10mov %ax, %dx11xor %bx, %dx12 13# CHECK: Iterations: 150014# CHECK-NEXT: Instructions: 450015# CHECK-NEXT: Total Cycles: 450316# CHECK-NEXT: Total uOps: 450017 18# CHECK: Dispatch Width: 219# CHECK-NEXT: uOps Per Cycle: 1.0020# CHECK-NEXT: IPC: 1.0021# CHECK-NEXT: Block RThroughput: 1.522 23# CHECK: Instruction Info:24# CHECK-NEXT: [1]: #uOps25# CHECK-NEXT: [2]: Latency26# CHECK-NEXT: [3]: RThroughput27# CHECK-NEXT: [4]: MayLoad28# CHECK-NEXT: [5]: MayStore29# CHECK-NEXT: [6]: HasSideEffects (U)30 31# CHECK: [1] [2] [3] [4] [5] [6] Instructions:32# CHECK-NEXT: 1 1 0.50 addw %cx, %dx33# CHECK-NEXT: 1 1 0.50 movw %ax, %dx34# CHECK-NEXT: 1 1 0.50 xorw %bx, %dx35 36# CHECK: Resources:37# CHECK-NEXT: [0] - JALU038# CHECK-NEXT: [1] - JALU139# CHECK-NEXT: [2] - JDiv40# CHECK-NEXT: [3] - JFPA41# CHECK-NEXT: [4] - JFPM42# CHECK-NEXT: [5] - JFPU043# CHECK-NEXT: [6] - JFPU144# CHECK-NEXT: [7] - JLAGU45# CHECK-NEXT: [8] - JMul46# CHECK-NEXT: [9] - JSAGU47# CHECK-NEXT: [10] - JSTC48# CHECK-NEXT: [11] - JVALU049# CHECK-NEXT: [12] - JVALU150# CHECK-NEXT: [13] - JVIMUL51 52# CHECK: Resource pressure per iteration:53# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]54# CHECK-NEXT: 1.50 1.50 - - - - - - - - - - - -55 56# CHECK: Resource pressure by instruction:57# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions:58# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - addw %cx, %dx59# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - movw %ax, %dx60# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - xorw %bx, %dx61 62# CHECK: Timeline view:63# CHECK-NEXT: 0164# CHECK-NEXT: Index 012345678965 66# CHECK: [0,0] DeER . .. addw %cx, %dx67# CHECK-NEXT: [0,1] D=eER. .. movw %ax, %dx68# CHECK-NEXT: [0,2] .D=eER .. xorw %bx, %dx69# CHECK-NEXT: [1,0] .D==eER .. addw %cx, %dx70# CHECK-NEXT: [1,1] . D==eER .. movw %ax, %dx71# CHECK-NEXT: [1,2] . D===eER .. xorw %bx, %dx72# CHECK-NEXT: [2,0] . D===eER.. addw %cx, %dx73# CHECK-NEXT: [2,1] . D====eER. movw %ax, %dx74# CHECK-NEXT: [2,2] . D====eER xorw %bx, %dx75 76# CHECK: Average Wait times (based on the timeline view):77# CHECK-NEXT: [0]: Executions78# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue79# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready80# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage81 82# CHECK: [0] [1] [2] [3]83# CHECK-NEXT: 0. 3 2.7 0.3 0.0 addw %cx, %dx84# CHECK-NEXT: 1. 3 3.3 0.0 0.0 movw %ax, %dx85# CHECK-NEXT: 2. 3 3.7 0.0 0.0 xorw %bx, %dx86# CHECK-NEXT: 3 3.2 0.1 0.0 <total>87