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target/104762 - vectorization costs of CONSTRUCTORs
authorRichard Biener <rguenther@suse.de>
Fri, 11 Mar 2022 10:51:13 +0000 (11:51 +0100)
committerRichard Biener <rguenther@suse.de>
Fri, 11 Mar 2022 13:11:59 +0000 (14:11 +0100)
commit69619acd8d9b5856f5af6e5323d9c7c4ec9ad08f
treec60870eeb11a2b981f82dfbb1742a734588b7c5dtree
parentdb494fd68d12f3b49ad5f4747c234f3a94d10c72commit | diff
target/104762 - vectorization costs of CONSTRUCTORs

After accounting for GPR -> XMM move cost for vec_construct the
base cost needs adjustments to not double-cost those.  This also
lowers the cost when such move is not necessary.

2022-03-11  Richard Biener  <rguenther@suse.de>

PR target/104762
* config/i386/i386.cc (ix86_builtin_vectorization_cost): Do not
cost the first lane of SSE pieces as inserts for vec_construct.
gcc/config/i386/i386.cc diff | blob | blame | history
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