From 74487f079dd56663f97f9731cea328931857495c Mon Sep 17 00:00:00 2001 From: xleroy Date: Tue, 10 Nov 2009 12:50:57 +0000 Subject: Added support for jump tables in back end. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1171 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e --- backend/Machabstr.v | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'backend/Machabstr.v') diff --git a/backend/Machabstr.v b/backend/Machabstr.v index aa17cd44..a2630a2b 100644 --- a/backend/Machabstr.v +++ b/backend/Machabstr.v @@ -282,6 +282,13 @@ Inductive step: state -> trace -> state -> Prop := eval_condition cond rs##args = Some false -> step (State s f sp (Mcond cond args lbl :: c) rs fr m) E0 (State s f sp c rs fr m) + | exec_Mjumptable: + forall s f sp arg tbl c rs fr m n lbl c', + rs arg = Vint n -> + list_nth_z tbl (Int.signed n) = Some lbl -> + find_label lbl f.(fn_code) = Some c' -> + step (State s f sp (Mjumptable arg tbl :: c) rs fr m) + E0 (State s f sp c' rs fr m) | exec_Mreturn: forall s f stk soff c rs fr m, step (State s f (Vptr stk soff) (Mreturn :: c) rs fr m) -- cgit