# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py # RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -bottleneck-analysis < %s | FileCheck %s vmulps %xmm0, %xmm1, %xmm2 vhaddps %xmm2, %xmm2, %xmm3 vhaddps %xmm3, %xmm3, %xmm4 # CHECK: Iterations: 100 # CHECK-NEXT: Instructions: 300 # CHECK-NEXT: Total Cycles: 211 # CHECK-NEXT: Total uOps: 300 # CHECK: Dispatch Width: 2 # CHECK-NEXT: uOps Per Cycle: 1.42 # CHECK-NEXT: IPC: 1.42 # CHECK-NEXT: Block RThroughput: 2.0 # CHECK: Cycles with backend pressure increase [ 40.76% ] # CHECK-NEXT: Throughput Bottlenecks: # CHECK-NEXT: Resource Pressure [ 39.34% ] # CHECK-NEXT: - JFPA [ 39.34% ] # CHECK-NEXT: - JFPU0 [ 39.34% ] # CHECK-NEXT: Data Dependencies: [ 1.42% ] # CHECK-NEXT: - Register Dependencies [ 1.42% ] # CHECK-NEXT: - Memory Dependencies [ 0.00% ] # CHECK: Critical sequence based on the simulation: # CHECK: Instruction Dependency Information # CHECK-NEXT: +----< 2. vhaddps %xmm3, %xmm3, %xmm4 # CHECK-NEXT: | # CHECK-NEXT: | < loop carried > # CHECK-NEXT: | # CHECK-NEXT: | 0. vmulps %xmm0, %xmm1, %xmm2 # CHECK-NEXT: +----> 1. vhaddps %xmm2, %xmm2, %xmm3 ## RESOURCE interference: JFPA [ probability: 73% ] # CHECK-NEXT: +----> 2. vhaddps %xmm3, %xmm3, %xmm4 ## REGISTER dependency: %xmm3 # CHECK-NEXT: | # CHECK-NEXT: | < loop carried > # CHECK-NEXT: | # CHECK-NEXT: +----> 1. vhaddps %xmm2, %xmm2, %xmm3 ## RESOURCE interference: JFPA [ probability: 73% ] # CHECK: Instruction Info: # CHECK-NEXT: [1]: #uOps # CHECK-NEXT: [2]: Latency # CHECK-NEXT: [3]: RThroughput # CHECK-NEXT: [4]: MayLoad # CHECK-NEXT: [5]: MayStore # CHECK-NEXT: [6]: HasSideEffects (U) # CHECK: [1] [2] [3] [4] [5] [6] Instructions: # CHECK-NEXT: 1 2 1.00 vmulps %xmm0, %xmm1, %xmm2 # CHECK-NEXT: 1 4 1.00 vhaddps %xmm2, %xmm2, %xmm3 # CHECK-NEXT: 1 4 1.00 vhaddps %xmm3, %xmm3, %xmm4 # CHECK: Resources: # CHECK-NEXT: [0] - JALU0 # CHECK-NEXT: [1] - JALU1 # CHECK-NEXT: [2] - JDiv # CHECK-NEXT: [3] - JFPA # CHECK-NEXT: [4] - JFPM # CHECK-NEXT: [5] - JFPU0 # CHECK-NEXT: [6] - JFPU1 # CHECK-NEXT: [7] - JLAGU # CHECK-NEXT: [8] - JMul # CHECK-NEXT: [9] - JSAGU # CHECK-NEXT: [10] - JSTC # CHECK-NEXT: [11] - JVALU0 # CHECK-NEXT: [12] - JVALU1 # CHECK-NEXT: [13] - JVIMUL # CHECK: Resource pressure per iteration: # CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] # CHECK-NEXT: - - - 2.00 1.00 2.00 1.00 - - - - - - - # CHECK: Resource pressure by instruction: # CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions: # CHECK-NEXT: - - - - 1.00 - 1.00 - - - - - - - vmulps %xmm0, %xmm1, %xmm2 # CHECK-NEXT: - - - 1.00 - 1.00 - - - - - - - - vhaddps %xmm2, %xmm2, %xmm3 # CHECK-NEXT: - - - 1.00 - 1.00 - - - - - - - - vhaddps %xmm3, %xmm3, %xmm4