[NFC][CodeGen][X86][AArch64] Add and-const-mask + const-shift pattern tests

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Unlike instcombine, we currently don't turn and+shift into shift+and.
We probably should, likely unconditionally.

While i'm adding only all-ones (potentially shifted) mask,
this obviously isn't limited to any particular mask pattern:
https://rise4fun.com/Alive/kmX

Related to https://bugs.llvm.org/show_bug.cgi?id=41874

llvm-svn: 360706

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This commit is contained in:

Roman Lebedev 2019-05-14 20:17:04 +00:00

parent dc2f5f9ff8

commit 7baf528aba

4 changed files with 8005 additions and 0 deletions

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llvm/test/CodeGen/AArch64/const-shift-of-constmasked.ll Normal file

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llvm/test/CodeGen/AArch64/vector_splat-const-shift-of-constmasked.ll Normal file

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llvm/test/CodeGen/X86/const-shift-of-constmasked.ll Normal file

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llvm/test/CodeGen/X86/vector_splat-const-shift-of-constmasked.ll Normal file

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