llvm-project

1df4af6c - Reapply "[AArch64][SVE] Pair SVE fill/spill into LDP/STP with -msve-vector-bits=128." (#135177)

Reapply "[AArch64][SVE] Pair SVE fill/spill into LDP/STP with -msve-vector-bits=128." (#135177) Reapplies #134068. The first patch was missing a check to prevent attempts to pair SVE fill/spill with other Neon load/store instructions, which could happen specifically if the Neon instruction was unscaled.