Sanjay Patel 0f8cf4be4e [x86] avoid vector load narrowing with extracted store uses (PR42305)
This is an exception to the rule that we should prefer xmm ops to ymm ops.
As shown in PR42305:
https://bugs.llvm.org/show_bug.cgi?id=42305
...the store folding opportunity with vextractf128 may result in better
perf by reducing the instruction count.

Differential Revision: https://reviews.llvm.org/D63517

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363853 91177308-0d34-0410-b5e6-96231b3b80d8
2019-06-19 18:13:47 +00:00
2014-03-02 13:08:46 +00:00
2016-01-26 21:29:08 +00:00
2019-02-19 20:38:51 +00:00

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