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Caroline Concatto d9b910d9d2 [AArch64][SVE] Improve code generation for vector_splice for Imm == -1
This patch implements vector_splice in tablegen for:
  a) when the immediate is equal to -1 (Imm==1) and uses:
       INSR  +  LASTB
For instance :
@llvm.experimental.vector.splice(Vector_1, Vector_2, -1)
@llvm.experimental.vector.splice(<A,B,C,D>, <E,F,G,H>, 1) ==> <D, E, F, G>
    LAST   RegLast, Vector_1                 // RegLast = D
    INSR   Res, (Vector_1 >> 1), RegLast     // Res = D + E, F, G

Differential Revision: https://reviews.llvm.org/D105633
2021-07-26 11:25:01 +01:00
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lib [AArch64][SVE] Improve code generation for vector_splice for Imm == -1 2021-07-26 11:25:01 +01:00
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test [AArch64][SVE] Improve code generation for vector_splice for Imm == -1 2021-07-26 11:25:01 +01:00
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