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| author | Jan Svoboda <jan_svoboda@apple.com> | 2023-08-09 10:02:51 -0700 |
|---|---|---|
| committer | Jan Svoboda <jan_svoboda@apple.com> | 2023-08-09 10:19:36 -0700 |
| commit | dcd3a0c9f13b551ca2bcefa0dd181a383f44df49 (patch) | |
| tree | 8b59d077dec0fc3b9065759f8b3fbecbea9bc675 /libcxx/modules/std/text_encoding.cppm | |
| parent | 6556e2902570bd7239f61bf990d8cd942ed32d3b (diff) | |
| download | llvm-dcd3a0c9f13b551ca2bcefa0dd181a383f44df49.zip llvm-dcd3a0c9f13b551ca2bcefa0dd181a383f44df49.tar.gz llvm-dcd3a0c9f13b551ca2bcefa0dd181a383f44df49.tar.bz2 | |
[clang][modules][deps] Create more efficient API for visitation of `ModuleFile` inputs
The current `ASTReader::visitInputFiles()` function calls into `FileManager` to create `FileEntryRef` objects. This ends up being fairly costly in `clang-scan-deps`, where we mostly only care about file paths.
This patch introduces new `ASTReader` API that gives clients access to just the serialized paths. Since the scanner needs both the as-requested path and the on-disk one (and doesn't want to transform the former into the latter via `FileManager`), this patch starts serializing both of them into the PCM file if they differ.
This increases the size of scanning PCMs by 0.1% and speeds up scanning by 5%.
Reviewed By: benlangmuir, vsapsai
Differential Revision: https://reviews.llvm.org/D157066
Diffstat (limited to 'libcxx/modules/std/text_encoding.cppm')
0 files changed, 0 insertions, 0 deletions