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[AggressiveInstCombine] Add `{insert/extract}element` to `TruncInstCombine` DAG
authorAnton Afanasyev <anton.a.afanasyev@gmail.com>
Sun, 5 Sep 2021 14:29:22 +0000 (17:29 +0300)
committerAnton Afanasyev <anton.a.afanasyev@gmail.com>
Thu, 16 Sep 2021 08:24:31 +0000 (11:24 +0300)
commit6a5f49a1acf861357b9ccb8495e4416878a2a7ad
treec650cb6362f248a0003f12db57465d4079cae51dtree | snapshot
parent8371a4c9d55997fdc45effbfa5d38d1f19ae3473commit | diff
[AggressiveInstCombine] Add `{insert/extract}element` to `TruncInstCombine` DAG

Alive2 for `{insert/extract}element`: https://alive2.llvm.org/ce/z/hwy_E-

Actually, no one file of test suite is touched by this change,
which means that is rare pattern not generated by frontend. But
it's worth being in place.

Differential Revision: https://reviews.llvm.org/D109236
llvm/lib/Transforms/AggressiveInstCombine/TruncInstCombine.cpp diff | blob | history
llvm/test/Transforms/AggressiveInstCombine/trunc_vector_instrs.ll diff | blob | history
Domain: System / Toolchain;