! GC_clear_stack_inner(arg, limit) clears stack area up to limit and
! returns arg. Stack clearing is crucial on SPARC, so we supply
! an assembly version that s more careful. Assumes limit is hotter
! GC_clear_stack_inner(arg, limit) clears stack area up to limit and
! returns arg. Stack clearing is crucial on SPARC, so we supply
! an assembly version that s more careful. Assumes limit is hotter