| Issue |
58141
|
| Summary |
libcxx/test/std/utilities/format/format.functions/format_to_n.locale.pass.cpp very slow to compile
|
| Labels |
libc++,
slow-compile
|
| Assignees |
|
| Reporter |
arichardson
|
I am trying to run the libc++ test suite (using a release+assertions clang) with a 120 second timeout per test and this test times out. It takes a very long time to compile (about two minutes): `libcxx/test/std/utilities/format/format.functions/format_to_n.locale.pass.cpp`
I am not sure if this is a clang frontend/codegen performance issue or a problem with the way the test is written: Running the compilation command with -ftime-trace=foo.json shows that a bit over 1 minute is spent in the frontend (almost all of that inside InstantiateFunction) and almost one minute in the backend.
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