aaron.ballman added a comment. In D140828#4653389 <https://reviews.llvm.org/D140828#4653389>, @nikic wrote:
> FYI this causes some compile-time regression: > http://llvm-compile-time-tracker.com/compare.php?from=bc7d88faf1a595ab59952a2054418cdd0d9eeee8&to=af4751738db89a142a8880c782d12d4201b222a8&stat=instructions:u > About 0.7% for C++ code at `O0`. Sample for a file with >2% would be > btSoftSoftCollisionAlgorithm.cpp. > > Not sure to what degree this is expected or not. I think it's at least somewhat expected, but unfortunate. We basically have to check "is this an explicit object argument function or not" in a bunch of places in the compiler and I think that perhaps the extra branching is what's causing the perf situation. I'm not certain what can be done beyond "hook up a profiler and start poking around". Thoughts, @cor3ntin? Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D140828/new/ https://reviews.llvm.org/D140828 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
