https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96780
--- Comment #12 from Patrick Palka <ppalka at gcc dot gnu.org> --- I should mention I noticed a significant reduction in compile time, memory usage and unstripped object file size in some cases with the proposed patch at https://gcc.gnu.org/pipermail/gcc-patches/2022-March/591091.html. For instance, for the range-v3 test file test/algorithm/set_symmetric_difference4.cpp compiled with -O2 -g and a non-checking compiler, compile time/GC allocations/object file size decreases from 8.29s/551M/3508K to 8.00s/541M/3104K. The object file size decrease (naively measured with du) here is particularly surprising, nearly a 12% decrease. I suppose this means debug info for inlined calls to std::move/forward accounts for >=12% of the debug info size, which we no longer emit with the patch.
