[🍒6.1] cherry-pick fine-grained tracing changes #77796
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…al file location provided by the build environment To simplify post-processing of these collected ObjC message traces, this PR teaches the compiler to atomically append the content of ObjC message trace to a file location provided by the build environment, instead of emitting multiple files.
…upplementary output paths computation CAS support in compiler relies on supplementary paths to decide the mapping between input and output files. Therefore, we have to compute the paths of the module ObjC trace files in this canonical place to have CAS support for this newly added ObjC message trace files.
… files to be a more general purposed file for tracing fine-grained dependencies. NFC
…hether the emitted trace file is pretty printed
…te where the fine module trace should be emitted to. NFC
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@swift-ci please test |
DougGregor
approved these changes
Nov 22, 2024
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Cherry-pick of PR against main: #77710