Constant rustc_middle::ty::layout::MAX_SIMD_LANES[−][src]

pub const MAX_SIMD_LANES: u64 = 1 << 0xF; // 0x0000_0000_0000_8000u64
Expand description

The maximum supported number of lanes in a SIMD vector.

This value is selected based on backend support:

  • LLVM does not appear to have a vector width limit.
  • Cranelift stores the base-2 log of the lane count in a 4 bit integer.