// SRL only considers the bottom 6 bits of y, similarly SRLW only considers the
// bottom 5 bits of y. Ensure that the result is always zero if the shift exceeds
// the maximum value. See Lsh above for a detailed description.
(Rsh8Ux8   <t> x y) && !shiftIsBounded(v) => (AND (SRL  <t> (ZeroExt8to64  x) y) (Neg8  <t> (SLTIU <t> [64] (ZeroExt8to64  y))))

(Convert (Add(64|32) (Convert ptr mem) off) mem) => (AddPtr ptr off)
(Convert (Convert ptr mem) mem) => ptr

// strength reduction of divide by a constant.
// See ../magic.go for a detailed description of these algorithms.

// Unsigned divide by power of 2.  Strength reduce to a shift.
(Div8u  n (Const8  [c])) && isPowerOfTwo8(c)  => (Rsh8Ux64  n (Const64 <typ.UInt64> [log8(c)]))

pkg runtime/metrics, type Description struct, Description string
pkg runtime/metrics, type Description struct, Kind ValueKind
pkg runtime/metrics, type Description struct, Name string
pkg runtime/metrics, type Float64Histogram struct
pkg runtime/metrics, type Float64Histogram struct, Buckets []float64
pkg runtime/metrics, type Float64Histogram struct, Counts []uint64
pkg runtime/metrics, type Sample struct