-stats-json requires `TimeReagion PassTimer(getPassTimer(...))` in the legacy
PM. The loss of functionality is not critical because we have the similar -time-passes.
When using clang --save-stats -mllvm -time-passes, both timers and stats
end up in the same json file.
We could end up with things like:
{
"asm-printer.EmittedInsts": 1,
"time.pass.Virtual Register Map.wall": 2.9015541076660156e-04,
"time.pass.Virtual Register Map.user": 2.0500000000000379e-04,
"time.pass.Virtual Register Map.sys": 8.5000000000001741e-05,
}
This patch makes use of the pass argument name (if available) in the
JSON key to end up with things like:
{
"asm-printer.EmittedInsts": 1,
"time.pass.virtregmap.wall": 2.9015541076660156e-04,
"time.pass.virtregmap.user": 2.0500000000000379e-04,
"time.pass.virtregmap.sys": 8.5000000000001741e-05,
}
This also helps avoiding to write another JSON printer to handle all the
cases that we could have in our pass names.
Fixed test instead of adding a new one originally from r334649.
Differential Revision: https://reviews.llvm.org/D48109
llvm-svn: 334657
- We lacked a short unique identifier for a statistics, so I renamed the
current "Name" field that just contained the DEBUG_TYPE name of the
current file to DebugType and added a new "Name" field that contains
the C++ identifier of the statistic variable.
- Add the -stats-json option which outputs statistics in json format.
Differential Revision: http://reviews.llvm.org/D20995
llvm-svn: 272826
Fangrui Song