[Bug target/83894] [missed optimization] __v16qu shift instruction sequence on x86

2018-01-16 Thread kretz at kde dot org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83894 --- Comment #2 from Matthias Kretz --- I compiled with: g++-7 -march=haswell -std=c++17 -O3 -flax-vector-conversions -o char_shift char_shift.cpp

[Bug target/83894] [missed optimization] __v16qu shift instruction sequence on x86

2018-01-16 Thread kretz at kde dot org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83894 --- Comment #1 from Matthias Kretz --- Created attachment 43149 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43149=edit tsc.h Header required for the benchmark code.