xref: /llvm-project/llvm/test/tools/llvm-mca/X86/BtVer2/bottleneck-hints-2.s (revision aa9b6468bdc9a14f82f513e302dbd1fef1a2e90b)
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=100 -timeline -timeline-max-iterations=1 -bottleneck-analysis < %s | FileCheck %s
3
4vhaddps %xmm0, %xmm0, %xmm1
5
6# CHECK:      Iterations:        100
7# CHECK-NEXT: Instructions:      100
8# CHECK-NEXT: Total Cycles:      106
9# CHECK-NEXT: Total uOps:        100
10
11# CHECK:      Dispatch Width:    2
12# CHECK-NEXT: uOps Per Cycle:    0.94
13# CHECK-NEXT: IPC:               0.94
14# CHECK-NEXT: Block RThroughput: 1.0
15
16# CHECK:      Cycles with backend pressure increase [ 76.42% ]
17# CHECK-NEXT: Throughput Bottlenecks:
18# CHECK-NEXT:   Resource Pressure       [ 76.42% ]
19# CHECK-NEXT:   - JFPA  [ 76.42% ]
20# CHECK-NEXT:   - JFPU0  [ 76.42% ]
21# CHECK-NEXT:   Data Dependencies:      [ 0.00% ]
22# CHECK-NEXT:   - Register Dependencies [ 0.00% ]
23# CHECK-NEXT:   - Memory Dependencies   [ 0.00% ]
24
25# CHECK:      Critical sequence based on the simulation:
26
27# CHECK:                    Instruction                                 Dependency Information
28# CHECK-NEXT:  +----< 0.    vhaddps	%xmm0, %xmm0, %xmm1
29# CHECK-NEXT:  |
30# CHECK-NEXT:  |    < loop carried >
31# CHECK-NEXT:  |
32# CHECK-NEXT:  +----> 0.    vhaddps	%xmm0, %xmm0, %xmm1               ## RESOURCE interference:  JFPA [ probability: 99% ]
33# CHECK-NEXT:  |
34# CHECK-NEXT:  |    < loop carried >
35# CHECK-NEXT:  |
36# CHECK-NEXT:  +----> 0.    vhaddps	%xmm0, %xmm0, %xmm1               ## RESOURCE interference:  JFPA [ probability: 99% ]
37
38# CHECK:      Instruction Info:
39# CHECK-NEXT: [1]: #uOps
40# CHECK-NEXT: [2]: Latency
41# CHECK-NEXT: [3]: RThroughput
42# CHECK-NEXT: [4]: MayLoad
43# CHECK-NEXT: [5]: MayStore
44# CHECK-NEXT: [6]: HasSideEffects (U)
45
46# CHECK:      [1]    [2]    [3]    [4]    [5]    [6]    Instructions:
47# CHECK-NEXT:  1      4     1.00                        vhaddps	%xmm0, %xmm0, %xmm1
48
49# CHECK:      Resources:
50# CHECK-NEXT: [0]   - JALU0
51# CHECK-NEXT: [1]   - JALU1
52# CHECK-NEXT: [2]   - JDiv
53# CHECK-NEXT: [3]   - JFPA
54# CHECK-NEXT: [4]   - JFPM
55# CHECK-NEXT: [5]   - JFPU0
56# CHECK-NEXT: [6]   - JFPU1
57# CHECK-NEXT: [7]   - JLAGU
58# CHECK-NEXT: [8]   - JMul
59# CHECK-NEXT: [9]   - JSAGU
60# CHECK-NEXT: [10]  - JSTC
61# CHECK-NEXT: [11]  - JVALU0
62# CHECK-NEXT: [12]  - JVALU1
63# CHECK-NEXT: [13]  - JVIMUL
64
65# CHECK:      Resource pressure per iteration:
66# CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]
67# CHECK-NEXT:  -      -      -     1.00    -     1.00    -      -      -      -      -      -      -      -
68
69# CHECK:      Resource pressure by instruction:
70# CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]   Instructions:
71# CHECK-NEXT:  -      -      -     1.00    -     1.00    -      -      -      -      -      -      -      -     vhaddps	%xmm0, %xmm0, %xmm1
72
73# CHECK:      Timeline view:
74# CHECK-NEXT: Index     0123456
75
76# CHECK:      [0,0]     DeeeeER   vhaddps	%xmm0, %xmm0, %xmm1
77
78# CHECK:      Average Wait times (based on the timeline view):
79# CHECK-NEXT: [0]: Executions
80# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
81# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
82# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
83
84# CHECK:            [0]    [1]    [2]    [3]
85# CHECK-NEXT: 0.     1     1.0    1.0    0.0       vhaddps	%xmm0, %xmm0, %xmm1
86