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llvm-mirror/test/tools/llvm-mca/SystemZ/stm-lm.s
Roman Lebedev f72d6fc559 [MCA] Show aggregate over Average Wait times for the whole snippet (PR43219)
Summary:
As disscused in https://bugs.llvm.org/show_bug.cgi?id=43219,
i believe it may be somewhat useful to show //some// aggregates
over all the sea of statistics provided.

Example:
```
Average Wait times (based on the timeline view):
[0]: Executions
[1]: Average time spent waiting in a scheduler's queue
[2]: Average time spent waiting in a scheduler's queue while ready
[3]: Average time elapsed from WB until retire stage

      [0]    [1]    [2]    [3]
0.     3     1.0    1.0    4.7       vmulps     %xmm0, %xmm1, %xmm2
1.     3     2.7    0.0    2.3       vhaddps    %xmm2, %xmm2, %xmm3
2.     3     6.0    0.0    0.0       vhaddps    %xmm3, %xmm3, %xmm4
       3     3.2    0.3    2.3       <total>
```
I.e. we average the averages.

Reviewers: andreadb, mattd, RKSimon

Reviewed By: andreadb

Subscribers: gbedwell, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68714

llvm-svn: 374361
2019-10-10 14:46:21 +00:00

74 lines
3.3 KiB
ArmAsm

# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
# RUN: llvm-mca -mtriple=s390x-linux-gnu -mcpu=z14 -timeline -timeline-max-iterations=3 < %s | FileCheck %s
stmg %r6, %r15, 48(%r15)
lmg %r6, %r15, 48(%r15)
# CHECK: Iterations: 100
# CHECK-NEXT: Instructions: 200
# CHECK-NEXT: Total Cycles: 1004
# CHECK-NEXT: Total uOps: 600
# CHECK: Dispatch Width: 6
# CHECK-NEXT: uOps Per Cycle: 0.60
# CHECK-NEXT: IPC: 0.20
# CHECK-NEXT: Block RThroughput: 3.5
# 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: 3 1 1.50 * stmg %r6, %r15, 48(%r15)
# CHECK-NEXT: 3 10 2.50 * lmg %r6, %r15, 48(%r15)
# CHECK: Resources:
# CHECK-NEXT: [0.0] - Z14_FXaUnit
# CHECK-NEXT: [0.1] - Z14_FXaUnit
# CHECK-NEXT: [1.0] - Z14_FXbUnit
# CHECK-NEXT: [1.1] - Z14_FXbUnit
# CHECK-NEXT: [2.0] - Z14_LSUnit
# CHECK-NEXT: [2.1] - Z14_LSUnit
# CHECK-NEXT: [3] - Z14_MCD
# CHECK-NEXT: [4.0] - Z14_VBUnit
# CHECK-NEXT: [4.1] - Z14_VBUnit
# CHECK-NEXT: [5.0] - Z14_VecFPdUnit
# CHECK-NEXT: [5.1] - Z14_VecFPdUnit
# CHECK-NEXT: [6.0] - Z14_VecUnit
# CHECK-NEXT: [6.1] - Z14_VecUnit
# CHECK: Resource pressure per iteration:
# CHECK-NEXT: [0.0] [0.1] [1.0] [1.1] [2.0] [2.1] [3] [4.0] [4.1] [5.0] [5.1] [6.0] [6.1]
# CHECK-NEXT: - - 1.50 1.50 2.06 4.94 - - - - - - -
# CHECK: Resource pressure by instruction:
# CHECK-NEXT: [0.0] [0.1] [1.0] [1.1] [2.0] [2.1] [3] [4.0] [4.1] [5.0] [5.1] [6.0] [6.1] Instructions:
# CHECK-NEXT: - - 1.50 1.50 1.96 0.04 - - - - - - - stmg %r6, %r15, 48(%r15)
# CHECK-NEXT: - - - - 0.10 4.90 - - - - - - - lmg %r6, %r15, 48(%r15)
# CHECK: Timeline view:
# CHECK-NEXT: 0123456789 0123
# CHECK-NEXT: Index 0123456789 0123456789
# CHECK: [0,0] DeER . . . . . . . stmg %r6, %r15, 48(%r15)
# CHECK-NEXT: [0,1] .DeeeeeeeeeeER . . . . . lmg %r6, %r15, 48(%r15)
# CHECK-NEXT: [1,0] . D=========eER. . . . . stmg %r6, %r15, 48(%r15)
# CHECK-NEXT: [1,1] . D========eeeeeeeeeeER . . . lmg %r6, %r15, 48(%r15)
# CHECK-NEXT: [2,0] . D=================eER. . . stmg %r6, %r15, 48(%r15)
# CHECK-NEXT: [2,1] . D================eeeeeeeeeeER lmg %r6, %r15, 48(%r15)
# CHECK: Average Wait times (based on the timeline view):
# CHECK-NEXT: [0]: Executions
# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
# CHECK: [0] [1] [2] [3]
# CHECK-NEXT: 0. 3 9.7 0.3 0.0 stmg %r6, %r15, 48(%r15)
# CHECK-NEXT: 1. 3 9.0 0.3 0.0 lmg %r6, %r15, 48(%r15)
# CHECK-NEXT: 3 9.3 0.3 0.0 <total>