zequanwu added a comment. In D157913#4638569 <https://reviews.llvm.org/D157913#4638569>, @phosek wrote:
> In D157913#4626007 <https://reviews.llvm.org/D157913#4626007>, @zequanwu > wrote: > >>> It seems that the `__llvm_prf_names` is retained in this mode. What is the >>> overhead of this section generally? Can we instead use debug info to lookup >>> function names? >> >> With debug info correlation enabled, `__llvm_prf_names` section will only >> contain functions names that are not emitted to the final binary, not even >> in debug info. > > Could we emit those names into the `.debug_str` section? Yes, I think it's feasible by creating a fake variable debug info that contains all the skipped function names in the source file for each object file, but that's a bit more overhead in debug info compared to just plain `__llvm_prf_names` in binary, which is only about 0.2% or less of original size [1]. [1]: https://bugs.chromium.org/p/chromium/issues/detail?id=1463755#c8 Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D157913/new/ https://reviews.llvm.org/D157913 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
