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97ab1ab89a
Summary: Shuffle lowering may have widened the element size of a i32 shuffle to i64 before selecting X86ISD::SHUF128. If this shuffle was used by a vselect this can prevent us from selecting masked operations. This patch detects this and changes the element size to match the vselect. I don't handle changing integer to floating point or vice versa as its not clear if its better to push such a bitcast to the inputs of the shuffle or to the user of the vselect. So I'm ignoring that case for now. Reviewers: delena, zvi, RKSimon Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D27087 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287939 91177308-0d34-0410-b5e6-96231b3b80d8 |
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