d3b8c9f5ef
Update from clang 18 to clang 19. perf-simple-query reports: clang 18 278102.35 tps ( 63.1 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 36056 insns/op, 16560 cycles/op, 0 errors) 288801.19 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 36018 insns/op, 16004 cycles/op, 0 errors) 287795.23 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 36039 insns/op, 15995 cycles/op, 0 errors) 290495.86 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 36027 insns/op, 15939 cycles/op, 0 errors) 293116.10 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 36020 insns/op, 15780 cycles/op, 0 errors) clang 19 284742.08 tps ( 63.1 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 35517 insns/op, 16419 cycles/op, 0 errors) 297974.97 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 35497 insns/op, 15926 cycles/op, 0 errors) 279527.99 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 35513 insns/op, 16724 cycles/op, 0 errors) 298229.61 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 35494 insns/op, 15892 cycles/op, 0 errors) 297982.67 tps ( 63.0 allocs/op, 0.0 logallocs/op, 14.1 tasks/op, 35494 insns/op, 15819 cycles/op, 0 errors) So the update delivers a nice performance improvement. Optimized clang regenerated and stored in https://devpkg.scylladb.com/clang/clang-19.1.7-Fedora-41-aarch64.tar.gz https://devpkg.scylladb.com/clang/clang-19.1.7-Fedora-41-x86_64.tar.gz Script to prepare optimized clang updated, and upstreamed patch dropped. Closes scylladb/scylladb#22380
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docker.io/scylladb/scylla-toolchain:fedora-41-20250205
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