Files
llvm/test/CodeGen/X86
Craig Topper 970c41dd6c [X86] Allow pack instructions to be used for 512->256 truncates when -mprefer-vector-width=256 is causing 512-bit vectors to be split
If we're splitting the 512-bit vector anyway and we have zero/sign bits, then we might as well use pack instructions to concat and truncate at once.

Differential Revision: https://reviews.llvm.org/D65904

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368210 91177308-0d34-0410-b5e6-96231b3b80d8
2019-08-07 21:16:10 +00:00
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