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Implement shufflevector builtin. (#36650)

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This isn't _terribly_ useful as-is, because the only constant mask you can get at from Swift at present is the zeroinitializer, but even that is quite useful for optimizing the repeating: intializer on SIMD. At some future point we should wire up generating constant masks for the .even, .odd, .high and .low properties (and also eventually make shufflevector take non-constant masks in LLVM). But this is enough to be useful, so let's get it in.
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Stephen Canon
2021-04-04 23:23:53 -04:00
committed by GitHub
parent aedd3f27a3
commit 511b50e511
7 changed files with 52 additions and 2 deletions
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lib/SIL/IR/ValueOwnership.cpp
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@@ -569,6 +569,7 @@ UNOWNED_OR_NONE_DEPENDING_ON_RESULT(CmpXChg)
UNOWNED_OR_NONE_DEPENDING_ON_RESULT(AtomicLoad)
UNOWNED_OR_NONE_DEPENDING_ON_RESULT(ExtractElement)
UNOWNED_OR_NONE_DEPENDING_ON_RESULT(InsertElement)
UNOWNED_OR_NONE_DEPENDING_ON_RESULT(ShuffleVector)
UNOWNED_OR_NONE_DEPENDING_ON_RESULT(ZeroInitializer)
#undef UNOWNED_OR_NONE_DEPENDING_ON_RESULT