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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=bdver2 -timeline -timeline-max-iterations=3 -iterations=1500 < %s | FileCheck %s3 4# perf stat reports an IPC of 1.00 for this code block.5 6# Although both SBB are dependency breaking instructions, there is still an7# implicit dependency on EFLAGS which limits the ILP. So, the hardware backend8# can only execute one instruction per cycle.9 10sbb %edx, %edx11sbb %eax, %eax12 13# CHECK: Iterations: 150014# CHECK-NEXT: Instructions: 300015# CHECK-NEXT: Total Cycles: 300316# CHECK-NEXT: Total uOps: 300017 18# CHECK: Dispatch Width: 419# CHECK-NEXT: uOps Per Cycle: 1.0020# CHECK-NEXT: IPC: 1.0021# CHECK-NEXT: Block RThroughput: 2.022 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 1.00 sbbl %edx, %edx33# CHECK-NEXT: 1 1 1.00 sbbl %eax, %eax34 35# CHECK: Resources:36# CHECK-NEXT: [0.0] - PdAGLU0137# CHECK-NEXT: [0.1] - PdAGLU0138# CHECK-NEXT: [1] - PdBranch39# CHECK-NEXT: [2] - PdCount40# CHECK-NEXT: [3] - PdDiv41# CHECK-NEXT: [4] - PdEX042# CHECK-NEXT: [5] - PdEX143# CHECK-NEXT: [6] - PdFPCVT44# CHECK-NEXT: [7.0] - PdFPFMA45# CHECK-NEXT: [7.1] - PdFPFMA46# CHECK-NEXT: [8.0] - PdFPMAL47# CHECK-NEXT: [8.1] - PdFPMAL48# CHECK-NEXT: [9] - PdFPMMA49# CHECK-NEXT: [10] - PdFPSTO50# CHECK-NEXT: [11] - PdFPU051# CHECK-NEXT: [12] - PdFPU152# CHECK-NEXT: [13] - PdFPU253# CHECK-NEXT: [14] - PdFPU354# CHECK-NEXT: [15] - PdFPXBR55# CHECK-NEXT: [16.0] - PdLoad56# CHECK-NEXT: [16.1] - PdLoad57# CHECK-NEXT: [17] - PdMul58# CHECK-NEXT: [18] - PdStore59 60# CHECK: Resource pressure per iteration:61# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18]62# CHECK-NEXT: - - - - - 2.00 2.00 - - - - - - - - - - - - - - - -63 64# CHECK: Resource pressure by instruction:65# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18] Instructions:66# CHECK-NEXT: - - - - - - 2.00 - - - - - - - - - - - - - - - - sbbl %edx, %edx67# CHECK-NEXT: - - - - - 2.00 - - - - - - - - - - - - - - - - - sbbl %eax, %eax68 69# CHECK: Timeline view:70# CHECK-NEXT: Index 01234567871 72# CHECK: [0,0] DeER . . sbbl %edx, %edx73# CHECK-NEXT: [0,1] D=eER. . sbbl %eax, %eax74# CHECK-NEXT: [1,0] D==eER . sbbl %edx, %edx75# CHECK-NEXT: [1,1] D===eER . sbbl %eax, %eax76# CHECK-NEXT: [2,0] .D===eER. sbbl %edx, %edx77# CHECK-NEXT: [2,1] .D====eER sbbl %eax, %eax78 79# CHECK: Average Wait times (based on the timeline view):80# CHECK-NEXT: [0]: Executions81# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue82# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready83# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage84 85# CHECK: [0] [1] [2] [3]86# CHECK-NEXT: 0. 3 2.7 0.3 0.0 sbbl %edx, %edx87# CHECK-NEXT: 1. 3 3.7 0.0 0.0 sbbl %eax, %eax88# CHECK-NEXT: 3 3.2 0.2 0.0 <total>89