1# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py 2# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -timeline -timeline-max-iterations=3 -iterations=1500 < %s | FileCheck %s 3 4# Although both SBB are dependency breaking instructions, there is still an 5# implicit dependency on EFLAGS which limits the ILP. So, the hardware backend 6# can only execute one instruction per cycle. 7 8sbb %edx, %edx 9sbb %eax, %eax 10 11# CHECK: Iterations: 1500 12# CHECK-NEXT: Instructions: 3000 13# CHECK-NEXT: Total Cycles: 6003 14# CHECK-NEXT: Total uOps: 6000 15 16# CHECK: Dispatch Width: 4 17# CHECK-NEXT: uOps Per Cycle: 1.00 18# CHECK-NEXT: IPC: 0.50 19# CHECK-NEXT: Block RThroughput: 1.0 20 21# CHECK: Instruction Info: 22# CHECK-NEXT: [1]: #uOps 23# CHECK-NEXT: [2]: Latency 24# CHECK-NEXT: [3]: RThroughput 25# CHECK-NEXT: [4]: MayLoad 26# CHECK-NEXT: [5]: MayStore 27# CHECK-NEXT: [6]: HasSideEffects (U) 28 29# CHECK: [1] [2] [3] [4] [5] [6] Instructions: 30# CHECK-NEXT: 2 2 0.67 sbbl %edx, %edx 31# CHECK-NEXT: 2 2 0.67 sbbl %eax, %eax 32 33# CHECK: Resources: 34# CHECK-NEXT: [0] - SBDivider 35# CHECK-NEXT: [1] - SBFPDivider 36# CHECK-NEXT: [2] - SBPort0 37# CHECK-NEXT: [3] - SBPort1 38# CHECK-NEXT: [4] - SBPort4 39# CHECK-NEXT: [5] - SBPort5 40# CHECK-NEXT: [6.0] - SBPort23 41# CHECK-NEXT: [6.1] - SBPort23 42 43# CHECK: Resource pressure per iteration: 44# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6.0] [6.1] 45# CHECK-NEXT: - - 1.33 1.33 - 1.33 - - 46 47# CHECK: Resource pressure by instruction: 48# CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6.0] [6.1] Instructions: 49# CHECK-NEXT: - - 0.67 0.67 - 0.67 - - sbbl %edx, %edx 50# CHECK-NEXT: - - 0.67 0.67 - 0.67 - - sbbl %eax, %eax 51 52# CHECK: Timeline view: 53# CHECK-NEXT: 01234 54# CHECK-NEXT: Index 0123456789 55 56# CHECK: [0,0] DeeER. . . sbbl %edx, %edx 57# CHECK-NEXT: [0,1] D==eeER . . sbbl %eax, %eax 58# CHECK-NEXT: [1,0] .D===eeER . . sbbl %edx, %edx 59# CHECK-NEXT: [1,1] .D=====eeER . sbbl %eax, %eax 60# CHECK-NEXT: [2,0] . D======eeER . sbbl %edx, %edx 61# CHECK-NEXT: [2,1] . D========eeER sbbl %eax, %eax 62 63# CHECK: Average Wait times (based on the timeline view): 64# CHECK-NEXT: [0]: Executions 65# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue 66# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready 67# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage 68 69# CHECK: [0] [1] [2] [3] 70# CHECK-NEXT: 0. 3 4.0 0.3 0.0 sbbl %edx, %edx 71# CHECK-NEXT: 1. 3 6.0 0.0 0.0 sbbl %eax, %eax 72# CHECK-NEXT: 3 5.0 0.2 0.0 <total> 73