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[BOLT] Compact legacy profiles
authorYi Kong <yikong@google.com>
Mon, 11 Apr 2022 13:56:12 +0000 (21:56 +0800)
committerYi Kong <yikong@google.com>
Tue, 12 Apr 2022 08:42:20 +0000 (16:42 +0800)
commit7d7771f34d14e0108adf02a6fd0b33943afae3da
tree5d4a2c7348a9924231b608d3ef5cfaa63061fc53tree | snapshot
parent2b6e5fa62b80f4c0ca540e2fc0ebe3b15e50b78acommit | diff
[BOLT] Compact legacy profiles

Merging multiple legacy profiles (produced by instrumentation BOLT) can
easily reach GiBs. Let merge-fdata compact the profiles during merge to
significantly reduce space usage.

Differential Revision: https://reviews.llvm.org/D123513
bolt/tools/merge-fdata/merge-fdata.cpp diff | blob | history
Domain: System / Toolchain;