Time to run test/test_netbsd_pmax_install.sh
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likely() put in the hot path of the MIPS load/store implementation
(actually unlikely()).
clang 6.0.0 without likely(): with likely():
without -flto: 244.13 seconds 242.81 seconds
with -flto: 230.?? seconds 229.42 seconds
g++ 8.3.0 without likely(): with likely():
without -flto: 232.40 seconds 232.78 seconds
with -flto: 231.88 seconds 228.56 seconds
Not very noticable, but I'll leave them in, for now.