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SIMD ISAReturn TypeNameArgumentsInstruction Group
Neonpoly64x1_tvsli_n_p64(poly64x1_t a, poly64x1_t b, const int n)Shift / Left / Vector shift left and insert
Description
Shift Left and Insert (immediate). This instruction reads each vector element in the source SIMD&FP register, left shifts each vector element by an immediate value, and inserts the result into the corresponding vector element in the destination SIMD&FP register such that the new zero bits created by the shift are not inserted but retain their existing value. Bits shifted out of the left of each vector element in the source register are lost.
Results
Dd result
This intrinsic compiles to the following instructions:

SLI Dd,Dn,#n

Argument Preparation
a register: Ddb register: Dnn minimum: 0; maximum: 63
Architectures
A32, A64

Operation

CheckFPAdvSIMDEnabled64();
bits(datasize) operand  = V[n];
bits(datasize) operand2 = V[d];
bits(datasize) result;
bits(esize) mask = LSL(Ones(esize), shift);
bits(esize) shifted;

for e = 0 to elements-1
    shifted = LSL(Elem[operand, e, esize], shift);
    Elem[result, e, esize] = (Elem[operand2, e, esize] AND NOT(mask)) OR shifted;
V[d] = result;