serge-sans-paille added a comment. Another test run on an x264 encoder (source: https://openbenchmarking.org/test/pts/x264)
Compiled with -O2 and with or without -fstack-clash-protection; Run without threads (`x265 --pools 1 -F 1 ./Bosphorus_1920x1080_120fps_420_8bit_YUV.y4m /dev/null`) **Clang** baseline: 318.60s protection: 317.72s So no performance impact beyond noise. The compilation inserts 44 inline probes in 9 functions. **gcc** Out of comparison, with gcc 8.2 (yeah, it's a bit old), I get (same flags & setup) baseline : 417.53 sec protected : 412.6 sec The compilations inserts inline probes in 22 functions. So gcc inserts more probes, the impact on performance is equally surprising. I need to gather more points to get some statistical informations there. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D68720/new/ https://reviews.llvm.org/D68720 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
