From 43e7b6702a76306f20687bc9aba93ae465d6e4be Mon Sep 17 00:00:00 2001 From: Xavier Leroy Date: Sun, 14 Apr 2019 10:47:14 +0200 Subject: Implement a `Osel` operation for PowerPC This operation compiles down to an `isel` instruction (conditional move). The semantics is given by `Val.select`. --- powerpc/ValueAOp.v | 2 ++ 1 file changed, 2 insertions(+) (limited to 'powerpc/ValueAOp.v') diff --git a/powerpc/ValueAOp.v b/powerpc/ValueAOp.v index f7f65e9e..a270d857 100644 --- a/powerpc/ValueAOp.v +++ b/powerpc/ValueAOp.v @@ -141,6 +141,7 @@ Definition eval_static_operation (op: operation) (vl: list aval): aval := | Olowlong, v1::nil => loword v1 | Ohighlong, v1::nil => hiword v1 | Ocmp c, _ => of_optbool (eval_static_condition c vl) + | Osel c ty, v1::v2::vl => select (eval_static_condition c vl) v1 v2 | _, _ => Vbot end. @@ -211,6 +212,7 @@ Proof. apply rolml_sound; auto. apply floatofwords_sound; auto. apply of_optbool_sound. eapply eval_static_condition_sound; eauto. + apply select_sound; auto. eapply eval_static_condition_sound; eauto. Qed. End SOUNDNESS. -- cgit