[AArch64][SVE] Asm: Support for FP conversion instructions.
The variants added are:
- fcvt (FP convert precision)
- scvtf (signed int -> FP)
- ucvtf (unsigned int -> FP)
- fcvtzs (FP -> signed int (round to zero))
- fcvtzu (FP -> unsigned int (round to zero))
For example:
fcvt z0.h, p0/m, z0.s (single- to half-precision FP)
scvtf z0.h, p0/m, z0.s (32-bit int to half-precision FP)
ucvtf z0.h, p0/m, z0.s (32-bit unsigned int to half-precision FP)
fcvtzs z0.s, p0/m, z0.h (half-precision FP to 32-bit int)
fcvtzu z0.s, p0/m, z0.h (half-precision FP to 32-bit unsigned int)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336265
91177308-0d34-0410-b5e6-
96231b3b80d8
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