diff options
Diffstat (limited to 'powerpc/SelectOpproof.v')
-rw-r--r-- | powerpc/SelectOpproof.v | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/powerpc/SelectOpproof.v b/powerpc/SelectOpproof.v index c3eda068..8135bad6 100644 --- a/powerpc/SelectOpproof.v +++ b/powerpc/SelectOpproof.v @@ -18,6 +18,8 @@ Require Import Values Memory Builtins Globalenvs. Require Import Cminor Op CminorSel. Require Import Compopts. Require Import SelectOp. +Require Import OpHelpers. +Require Import OpHelpersproof. Local Open Scope cminorsel_scope. Local Transparent Archi.ptr64. @@ -70,8 +72,10 @@ Ltac TrivialExists := (** * Correctness of the smart constructors *) Section CMCONSTR. - -Variable ge: genv. +Variable prog: program. +Variable hf: helper_functions. +Hypothesis HELPERS: helper_functions_declared prog hf. +Let ge := Genv.globalenv prog. Variable sp: val. Variable e: env. Variable m: mem. @@ -1058,6 +1062,27 @@ Proof. - constructor; auto. Qed. +(* floating-point division without HELPERS *) +Theorem eval_divf_base: + forall le a b x y, + eval_expr ge sp e m le a x -> + eval_expr ge sp e m le b y -> + exists v, eval_expr ge sp e m le (divf_base a b) v /\ Val.lessdef (Val.divf x y) v. +Proof. + intros; unfold divf_base. + TrivialExists. +Qed. + +Theorem eval_divfs_base: + forall le a b x y, + eval_expr ge sp e m le a x -> + eval_expr ge sp e m le b y -> + exists v, eval_expr ge sp e m le (divfs_base a b) v /\ Val.lessdef (Val.divfs x y) v. +Proof. + intros; unfold divfs_base. + TrivialExists. +Qed. + (** Platform-specific known builtins *) Theorem eval_platform_builtin: |