From 996f2e071baaf52105714283d141af2eac8ffbfb Mon Sep 17 00:00:00 2001 From: Xavier Leroy Date: Mon, 15 Apr 2019 15:21:49 +0200 Subject: Implement a `Osel` operation for x86 The operation compiles down to conditional moves. --- x86/ValueAOp.v | 2 ++ 1 file changed, 2 insertions(+) (limited to 'x86/ValueAOp.v') diff --git a/x86/ValueAOp.v b/x86/ValueAOp.v index 1021a9c8..d0b8427a 100644 --- a/x86/ValueAOp.v +++ b/x86/ValueAOp.v @@ -160,6 +160,7 @@ Definition eval_static_operation (op: operation) (vl: list aval): aval := | Olongofsingle, v1::nil => longofsingle v1 | Osingleoflong, v1::nil => singleoflong 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. @@ -258,6 +259,7 @@ Proof. eapply eval_static_addressing_32_sound; eauto. eapply eval_static_addressing_64_sound; eauto. apply of_optbool_sound. eapply eval_static_condition_sound; eauto. + apply select_sound; auto. eapply eval_static_condition_sound; eauto. Qed. End SOUNDNESS. -- cgit