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10 Commits

Author SHA1 Message Date
Clement Courbet 41c8af3924 [MCSched] Bind PFM Counters to the CPUs instead of the SchedModel. 
Summary:
The pfm counters are now in the ExegesisTarget rather than the
MCSchedModel (PR39165).

This also compresses the pfm counter tables (PR37068).

Reviewers: RKSimon, gchatelet

Subscribers: mgrang, llvm-commits

Differential Revision: https://reviews.llvm.org/D52932

llvm-svn: 345243
 2018-10-25 07:44:01 +00:00
Simon Pilgrim 2c59475c06 [X86] Add SkylakeClient uops counter - same as the other Intel models. 
llvm-svn: 343697
 2018-10-03 16:45:26 +00:00
Clement Courbet dac60b9837 [X86][Sched] Add pfm uop counter definitions for SNB,BDW,SKX. 
llvm-svn: 343446
 2018-10-01 08:37:37 +00:00
Simon Pilgrim 7e4f154e79 [X86][Btver2] Add uops counter for exegesis reports 
llvm-svn: 343194
 2018-09-27 11:40:26 +00:00
Clement Courbet 596c56ff9c [llvm-exegesis] Add support for measuring NumMicroOps. 
Summary:
Example output for vzeroall:

---
mode:            uops
key:
  instructions:
    - 'VZEROALL'
  config:          ''
  register_initial_values:
cpu_name:        haswell
llvm_triple:     x86_64-unknown-linux-gnu
num_repetitions: 10000
measurements:
  - { debug_string: HWPort0, value: 0.0006, per_snippet_value: 0.0006,
      key: '3' }
  - { debug_string: HWPort1, value: 0.0011, per_snippet_value: 0.0011,
      key: '4' }
  - { debug_string: HWPort2, value: 0.0004, per_snippet_value: 0.0004,
      key: '5' }
  - { debug_string: HWPort3, value: 0.0018, per_snippet_value: 0.0018,
      key: '6' }
  - { debug_string: HWPort4, value: 0.0002, per_snippet_value: 0.0002,
      key: '7' }
  - { debug_string: HWPort5, value: 1.0019, per_snippet_value: 1.0019,
      key: '8' }
  - { debug_string: HWPort6, value: 1.0033, per_snippet_value: 1.0033,
      key: '9' }
  - { debug_string: HWPort7, value: 0.0001, per_snippet_value: 0.0001,
      key: '10' }
  - { debug_string: NumMicroOps, value: 20.0069, per_snippet_value: 20.0069,
      key: NumMicroOps }
error:           ''
info:            ''
assembled_snippet: C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C5FC77C3
...

Reviewers: gchatelet

Subscribers: tschuett, RKSimon, andreadb, llvm-commits

Differential Revision: https://reviews.llvm.org/D52539

llvm-svn: 343094
 2018-09-26 11:22:56 +00:00
Simon Pilgrim e389434a8a [X86][BtVer2] Added Jaguar FPU Pipe0/1 uop counters to permit basic llvm-exegesis uop testing 
We don't have PMCs to cover many of the Jaguar resources but we can at least monitor the FPU issue pipes which give an indication of the fpu uop count, just not the execution resources.

llvm-svn: 336089
 2018-07-02 09:15:01 +00:00
Simon Pilgrim a90c211820 [X86][BtVer2] Added Jaguar cpu cycle counter to permit llvm-exegesis latency testing 
Ideally we'd be able to test a CPU by using __builtin_readcyclecounter()/RDTSC instead (PR37193) if a model/cycle-counter is not specified.

NOTE: Jaguar PMCs don't give good coverage of resource pipes specified in the model (at the macro-vs-micro-op levels) but we should be able to cover at least a few resources.
llvm-svn: 333190
 2018-05-24 14:54:32 +00:00
Clement Courbet b18c34bc29 [llvm-exegesis] Fix pfm counter names for BDW. 
Summary: They are not consistent with other microarchitectures.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D46434

llvm-svn: 331532
 2018-05-04 15:26:12 +00:00
Simon Pilgrim 95f941117c Fix whitespace indentation. NFCI. 
llvm-svn: 329704
 2018-04-10 14:21:33 +00:00
Clement Courbet b449379eae [MC][TableGen] Add optional libpfm counter names for ProcResUnits. 
Summary:
Subtargets can define the libpfm counter names that can be used to
measure cycles and uops issued on ProcResUnits.
This allows making llvm-exegesis available on more targets.
Fixes PR36984.

Reviewers: gchatelet, RKSimon, andreadb, craig.topper

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45360

llvm-svn: 329675
 2018-04-10 08:16:37 +00:00