adonis0147 opened a new pull request, #14170:
URL: https://github.com/apache/doris/pull/14170
# Proposed changes
~~Issue Number: close #xxx~~
## Problem summary
Currently, it takes too much time to build BE from source in workflow
environments (P0/P1) which affects the efficiency of daily development.
We can measure the time by executing the following command.
```shell
time EXTRA_CXX_FLAGS='-O3' BUILD_TYPE=ASAN ./build.sh --be --fe --clean -j
"$(nproc)"
```
This PR optimizes the compilation time by exploiting the following methods.
1. Reduce the codegen by removing useless `std::visit`.
2. Disable the optimization for some template functions which are
instantiated by `std::visit` conditionally (_If we use `GCC` to build the
project with `asan`_).
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [ ] No
- [ ] I don't know
3. Has unit tests been added:
- [ ] Yes
- [ ] No
- [ ] No Need
4. Has document been added or modified:
- [ ] Yes
- [ ] No
- [ ] No Need
5. Does it need to update dependencies:
- [ ] Yes
- [ ] No
6. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [ ] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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