commit 3360172e6e26731feedc5aad181c85a7c24cf458
author Ellis Hoag <ellis.sparky.hoag@gmail.com> Mon Dec 13 16:47:47 2021 -0800
committer Copybara-Service <copybara-worker@google.com> Mon Dec 13 17:56:25 2021 -0800
tree 629a8c58f0315ba8c854d69ec806a232f83b4d89
parent 837ae47903d0b917589f37c6dd79ea3d47e741af

[InstrProf] Attach debug info to counters

Add the llvm flag `-debug-info-correlate` to attach debug info to instrumentation counters so we can correlate raw profile data to their functions. Raw profiles are dumped as `.proflite` files. The next diff enables `llvm-profdata` to consume `.proflite` and debug info files to produce a normal `.profdata` profile.

Part of the "lightweight instrumentation" work: https://groups.google.com/g/llvm-dev/c/r03Z6JoN7d4

Reviewed By: kyulee

Differential Revision: https://reviews.llvm.org/D114565

GitOrigin-RevId: 800bf8ed29fbcaa9436540e83bc119ec92e7d40f