1# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py 2# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s 3 4# perf stat reports a throughput of 0.60 IPC for this code snippet. 5 6# The lzcnt cannot execute in parallel with the imul because there is a false 7# dependency on %bx. 8 9imul %ax, %bx 10lzcnt %ax, %bx 11add %cx, %bx 12 13# CHECK: Iterations: 1500 14# CHECK-NEXT: Instructions: 4500 15# CHECK-NEXT: Total Cycles: 7503 16# CHECK-NEXT: Total uOps: 4500 17 18# CHECK: Dispatch Width: 2 19# CHECK-NEXT: uOps Per Cycle: 0.60 20# CHECK-NEXT: IPC: 0.60 21# CHECK-NEXT: Block RThroughput: 1.5 22 23# CHECK: Instruction Info: 24# CHECK-NEXT: [1]: #uOps 25# CHECK-NEXT: [2]: Latency 26# CHECK-NEXT: [3]: RThroughput 27# CHECK-NEXT: [4]: MayLoad 28# CHECK-NEXT: [5]: MayStore 29# CHECK-NEXT: [6]: HasSideEffects (U) 30 31# CHECK: [1] [2] [3] [4] [5] [6] Instructions: 32# CHECK-NEXT: 1 3 1.00 imulw %ax, %bx 33# CHECK-NEXT: 1 1 0.50 lzcntw %ax, %bx 34# CHECK-NEXT: 1 1 0.50 addw %cx, %bx 35 36# CHECK: Resources: 37# CHECK-NEXT: [0] - JALU0 38# CHECK-NEXT: [1] - JALU1 39# CHECK-NEXT: [2] - JDiv 40# CHECK-NEXT: [3] - JFPA 41# CHECK-NEXT: [4] - JFPM 42# CHECK-NEXT: [5] - JFPU0 43# CHECK-NEXT: [6] - JFPU1 44# CHECK-NEXT: [7] - JLAGU 45# CHECK-NEXT: [8] - JMul 46# CHECK-NEXT: [9] - JSAGU 47# CHECK-NEXT: [10] - JSTC 48# CHECK-NEXT: [11] - JVALU0 49# CHECK-NEXT: [12] - JVALU1 50# CHECK-NEXT: [13] - JVIMUL 51 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 - - - - - - 1.00 - - - - - 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: - 1.00 - - - - - - 1.00 - - - - - imulw %ax, %bx 59# CHECK-NEXT: 1.00 - - - - - - - - - - - - - lzcntw %ax, %bx 60# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - addw %cx, %bx 61 62# CHECK: Timeline view: 63# CHECK-NEXT: 01234567 64# CHECK-NEXT: Index 0123456789 65 66# CHECK: [0,0] DeeeER . . . imulw %ax, %bx 67# CHECK-NEXT: [0,1] D===eER . . . lzcntw %ax, %bx 68# CHECK-NEXT: [0,2] .D===eER . . . addw %cx, %bx 69# CHECK-NEXT: [1,0] .D====eeeER . . imulw %ax, %bx 70# CHECK-NEXT: [1,1] . D======eER . . lzcntw %ax, %bx 71# CHECK-NEXT: [1,2] . D=======eER . . addw %cx, %bx 72# CHECK-NEXT: [2,0] . D=======eeeER . imulw %ax, %bx 73# CHECK-NEXT: [2,1] . D==========eER. lzcntw %ax, %bx 74# CHECK-NEXT: [2,2] . D==========eER addw %cx, %bx 75 76# CHECK: Average Wait times (based on the timeline view): 77# CHECK-NEXT: [0]: Executions 78# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue 79# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready 80# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage 81 82# CHECK: [0] [1] [2] [3] 83# CHECK-NEXT: 0. 3 4.7 0.3 0.0 imulw %ax, %bx 84# CHECK-NEXT: 1. 3 7.3 0.0 0.0 lzcntw %ax, %bx 85# CHECK-NEXT: 2. 3 7.7 0.0 0.0 addw %cx, %bx 86# CHECK-NEXT: 3 6.6 0.1 0.0 <total> 87