Section STRENGTH_REDUCTION.
Variable bc: block_classification.
Variable ge: genv.
Hypothesis GENV: genv_match bc ge.
Variable sp: block.
Hypothesis STACK: bc sp = BCstack.
Variable ae: AE.t.
Variable rs: regset.
Variable m: mem.
Hypothesis MATCH: ematch bc rs ae.

Lemma match_S:
forall r ofs,
AE.get r ae = Ptr(Stk ofs) -> Val.lessdef rs#r (Vptr sp ofs).