Fangrui Song
0de18e72c6
-ftime-report: reorganize timers
...
The code generation time is unclear in the -ftime-report output:
* The two clang timers "Code Generation Time" and "LLVM IR Generation
Time" are in the default group "Miscellaneous Ungrouped Timers".
* There is also a "Clang front-end time" group, which actually includes
code generation time.
```
===-------------------------------------------------------------------------===
Miscellaneous Ungrouped Timers
===-------------------------------------------------------------------------===
---User Time--- --System Time-- --User+System-- ---Wall Time--- --- Name ---
0.0611 ( 1.7%) 0.0099 ( 4.4%) 0.0710 ( 1.9%) 0.0713 ( 1.9%) LLVM IR Generation Time
3.5140 ( 98.3%) 0.2165 ( 95.6%) 3.7306 ( 98.1%) 3.7342 ( 98.1%) Code Generation Time
3.5751 (100.0%) 0.2265 (100.0%) 3.8016 (100.0%) 3.8055 (100.0%) Total
...
===-------------------------------------------------------------------------===
Clang front-end time report
===-------------------------------------------------------------------------===
Total Execution Time: 3.9108 seconds (3.9146 wall clock)
---User Time--- --System Time-- --User+System-- ---Wall Time--- --- Name ---
3.6802 (100.0%) 0.2306 (100.0%) 3.9108 (100.0%) 3.9146 (100.0%) Clang front-end timer
3.6802 (100.0%) 0.2306 (100.0%) 3.9108 (100.0%) 3.9146 (100.0%) Total
```
This patch
* renames "Clang front-end time report" (FrontendAction time) to "Clang
time report",
* renames "Clang front-end" to "Front end",
* moves "LLVM IR Generation" into the group,
* replaces "Code Generation time" with "Optimizer" (middle end) and
"Machine code generation" (back end).
```
% clang -c sqlite3.i -w -ftime-report -mllvm -sort-timers=0
...
===-------------------------------------------------------------------------===
Clang time report
===-------------------------------------------------------------------------===
Total Execution Time: 1.5922 seconds (1.5972 wall clock)
---User Time--- --System Time-- --User+System-- ---Wall Time--- --- Name ---
0.5107 ( 35.9%) 0.0105 ( 6.2%) 0.5211 ( 32.7%) 0.5222 ( 32.7%) Front end
0.2464 ( 17.3%) 0.0340 ( 20.0%) 0.2804 ( 17.6%) 0.2814 ( 17.6%) LLVM IR generation
0.6240 ( 43.9%) 0.1235 ( 72.7%) 0.7475 ( 47.0%) 0.7503 ( 47.0%) Machine code generation
0.0413 ( 2.9%) 0.0018 ( 1.0%) 0.0431 ( 2.7%) 0.0433 ( 2.7%) Optimizer
1.4224 (100.0%) 0.1698 (100.0%) 1.5922 (100.0%) 1.5972 (100.0%) Total
```
Pull Request: https://github.com/llvm/llvm-project/pull/122225
2025-01-10 19:25:18 -08:00
Bjorn Pettersson
6264b0d673
Improve checks in test/Frontend/ftime-report-template-decl.cpp
...
Some buildbots seems to have problems with the CHECKs in
test/Frontend/ftime-report-template-decl.cpp.
I this the problem is that the order in which timers are printed
is based on consumed wall time. So there is no guarantee in which
order the timers are printed.
This patch uses CHECK-DAG instead of CHECK to make the test
case less sensitive to the actual time used by the different
passes.
The (sometimes) failing test cases where introduced in trunk@330571.
llvm-svn: 330622
2018-04-23 18:05:35 +00:00
Andrew V. Tischenko
8ab2c9cd1e
Use special new Clang flag 'FrontendTimesIsEnabled' instead of 'llvm::TimePassesIsEnabled' inside -ftime-report feature.
...
Differential Revision: https://reviews.llvm.org/D45619
llvm-svn: 330571
2018-04-23 09:22:30 +00:00
Andrew V. Tischenko
38cd74b1c1
I removed the failed test.
...
llvm-svn: 329714
2018-04-10 15:45:43 +00:00
Andrew V. Tischenko
23b8bd1220
The test was fixed.
...
llvm-svn: 329693
2018-04-10 12:17:01 +00:00
Andrew V. Tischenko
c88deb100f
-ftime-report switch support in Clang.
...
The current support of the feature produces only 2 lines in report:
-Some general Code Generation Time;
-Total time of Backend Consumer actions.
This patch extends Clang time report with new lines related to Preprocessor, Include Filea Search, Parsing, etc.
Differential Revision: https://reviews.llvm.org/D43578
llvm-svn: 329684
2018-04-10 10:34:13 +00:00
