!sum
# Neg — signed integer negate. ZNEG is predicated-only, like ZABS: the
# governing predicate is implicit-all-true and the merging qualifier becomes
# the predicated machine op.
- go: Neg
  asm: "ZNEG"
  in:
  - &int
    go: $t
    base: int
  - class: mask # governing predicate
  out:
  - *int

# Neg — floating-point negate, ZFNEG. Same shape as ZNEG.
- go: Neg
  asm: "ZFNEG"
  in:
  - &float
    go: $t
    base: float
  - class: mask # governing predicate
  out:
  - *float

# Abs — floating-point absolute value, ZFABS. Predicated-only, same shape as
# ZFNEG; the integer ZABS lives in IntOnlyArith.
- go: Abs
  asm: "ZFABS"
  in:
  - *float
  - class: mask # governing predicate
  out:
  - *float