Commit Graph

17 Commits

Author SHA1 Message Date
Clement Courbet 49fad1cbf2 [llvm-exegesis] Use BenchmarkResult::Instructions instead of OpcodeName
Summary:
Get rid of OpcodeName.

To remove the opcode name from an old file:
```
cat old_file | sed '/opcode_name.*/d'
```

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48121

llvm-svn: 334691
2018-06-14 06:57:52 +00:00
Guillaume Chatelet 8c91d4cb04 [llvm-exegesis] Improve error reporting.
Summary: BenchmarkResult IO functions now return an Error or Expected so caller can deal take proper action.

Reviewers: courbet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D47868

llvm-svn: 334167
2018-06-07 07:51:16 +00:00
Guillaume Chatelet 083a0c1621 [llvm-exegesis] Serializes instruction's operand in BenchmarkResult's key.
Summary: Follow up patch to https://reviews.llvm.org/D47764.

Reviewers: courbet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D47785

llvm-svn: 334165
2018-06-07 07:40:40 +00:00
Clement Courbet 62b34fa89a [llvm-exegesis] move Mode from Key to BenchmarResult.
Moves the Mode field out of the Key. The existing yaml benchmark results can be fixed with the following script:

```
readonly FILE=$1
readonly MODE=latency # Change to uops to fix a uops benchmark.
cat $FILE | \
  sed "/^\ \+mode:\ \+$MODE$/d" | \
  sed "/^cpu_name.*$/i mode:            $MODE"
```

Differential Revision: https://reviews.llvm.org/D47813

Authored by: Guillaume Chatelet

llvm-svn: 334079
2018-06-06 09:42:36 +00:00
Clement Courbet 53d35d2dc4 [llvm-exegesis] Add instructions to BenchmarkResult Key.
We want llvm-exegesis to explore instructions (effect of initial register values, effect of operand selection). To enable this a BenchmarkResult muststore all the relevant data in its key. This patch starts adding such data. Here we simply allow to store the generated instructions, following patches will add operands and initial values for registers.

https://reviews.llvm.org/D47764

Authored by: Guilluame Chatelet

llvm-svn: 334008
2018-06-05 10:56:19 +00:00
Clement Courbet 2cb97b95a2 [llvm-exegesis][NFC] Use an enum instead of a string for benchmark mode.
Summary: YAML encoding is backwards-compatible.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D47705

llvm-svn: 333886
2018-06-04 11:43:40 +00:00
Clement Courbet ae8ae5dc78 [llvm-exegesis] Analysis: Show value extents.
Summary: Screenshot attached in phabricator.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D47318

llvm-svn: 333181
2018-05-24 12:41:02 +00:00
Clement Courbet a66bfaa4c0 [llvm-exegesis] Split AsmTemplate.Name into components.
Summary:
AsmTemplate becomes IntructionBenchmarkKey, which has three components.
This allows retreiving the opcode for analysis.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D46873

llvm-svn: 332348
2018-05-15 13:07:05 +00:00
Clement Courbet 4c0fb1dc68 Re-land r332230 "[llvm-exegesis]Fix a warning in r332221"
comparison of integers of different signs: 'const unsigned long' and 'const int' [-Werror,-Wsign-compare]

unittests/tools/llvm-exegesis/BenchmarkResultTest.cpp:60:5: note: in instantiation of function template specialization 'testing::internal::EqHelper<false>::Compare<unsigned long, int>' requested here
    ASSERT_EQ(FromDiskVector.size(), 1);

llvm-svn: 332235
2018-05-14 12:00:35 +00:00
Clement Courbet dffc4ca4f2 [llvm-exegesis] Revert accidentally commited code.
llvm-svn: 332231
2018-05-14 11:35:37 +00:00
Clement Courbet 4623da8991 [llvm-exegesis] Fix a warning in r332221
comparison of integers of different signs: 'const unsigned long' and 'const int' [-Werror,-Wsign-compare]

unittests/tools/llvm-exegesis/BenchmarkResultTest.cpp:60:5: note: in instantiation of function template specialization 'testing::internal::EqHelper<false>::Compare<unsigned long, int>' requested here
    ASSERT_EQ(FromDiskVector.size(), 1);

llvm-svn: 332230
2018-05-14 11:31:02 +00:00
Clement Courbet 7b7c27afca [llvm-exegesis] Allow lists of BenchmarkResults to be parsed as std::vector<BenchmarkResult>.
llvm-svn: 332221
2018-05-14 09:01:22 +00:00
Clement Courbet 308f8b7a66 [llvm-exegesis] Create test files in temporary directory.
Currently the test fails in sandboxed environnements.

llvm-svn: 330015
2018-04-13 13:37:07 +00:00
Clement Courbet 3f20fee55c [llvm-exegesis][NFC] Fix a few warnings.
llvm-svn: 329174
2018-04-04 12:01:38 +00:00
Clement Courbet ac74acdefe Re-land r329156 "Add llvm-exegesis tool."
Fixed to depend on and initialize the native target instead of X86.

llvm-svn: 329169
2018-04-04 11:37:06 +00:00
Clement Courbet 7949b3b1dc Revert r329156 "Add llvm-exegesis tool."
Breaks a bunch of bots.

llvm-svn: 329157
2018-04-04 08:22:54 +00:00
Clement Courbet 7287b2c1ec Add llvm-exegesis tool.
Summary:
[llvm-exegesis][RFC] Automatic Measurement of Instruction Latency/Uops

This is the code corresponding to the RFC "llvm-exegesis Automatic Measurement of Instruction Latency/Uops".

The RFC is available on the LLVM mailing lists as well as the following document
for easier reading:
https://docs.google.com/document/d/1QidaJMJUyQdRrFKD66vE1_N55whe0coQ3h1GpFzz27M/edit?usp=sharing

Subscribers: mgorny, gchatelet, orwant, llvm-commits

Differential Revision: https://reviews.llvm.org/D44519

llvm-svn: 329156
2018-04-04 08:13:32 +00:00