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 1.00 IPC for this code snippet. 5 6# The ILP is limited by the false dependency on %dx. So, the mov cannot execute 7# in parallel with the add. 8 9add %cx, %dx 10mov %ax, %dx 11xor %bx, %dx 12 13# CHECK: Iterations: 1500 14# CHECK-NEXT: Instructions: 4500 15# CHECK-NEXT: Total Cycles: 4503 16# CHECK-NEXT: Total uOps: 4500 17 18# CHECK: Dispatch Width: 2 19# CHECK-NEXT: uOps Per Cycle: 1.00 20# CHECK-NEXT: IPC: 1.00 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 1 0.50 addw %cx, %dx 33# CHECK-NEXT: 1 1 0.50 movw %ax, %dx 34# CHECK-NEXT: 1 1 0.50 xorw %bx, %dx 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 - - - - - - - - - - - - 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, %dx 59# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - movw %ax, %dx 60# CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - xorw %bx, %dx 61 62# CHECK: Timeline view: 63# CHECK-NEXT: 01 64# CHECK-NEXT: Index 0123456789 65 66# CHECK: [0,0] DeER . .. addw %cx, %dx 67# CHECK-NEXT: [0,1] D=eER. .. movw %ax, %dx 68# CHECK-NEXT: [0,2] .D=eER .. xorw %bx, %dx 69# CHECK-NEXT: [1,0] .D==eER .. addw %cx, %dx 70# CHECK-NEXT: [1,1] . D==eER .. movw %ax, %dx 71# CHECK-NEXT: [1,2] . D===eER .. xorw %bx, %dx 72# CHECK-NEXT: [2,0] . D===eER.. addw %cx, %dx 73# CHECK-NEXT: [2,1] . D====eER. movw %ax, %dx 74# CHECK-NEXT: [2,2] . D====eER xorw %bx, %dx 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 2.7 0.3 0.0 addw %cx, %dx 84# CHECK-NEXT: 1. 3 3.3 0.0 0.0 movw %ax, %dx 85# CHECK-NEXT: 2. 3 3.7 0.0 0.0 xorw %bx, %dx 86# CHECK-NEXT: 3 3.2 0.1 0.0 <total> 87