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| author | Xavier Leroy <xavier.leroy@inria.fr> | 2017-06-15 15:11:26 +0200 |
|---|---|---|
| committer | Bernhard Schommer <bschommer@users.noreply.github.com> | 2017-07-06 15:41:51 +0200 |
| commit | dff22ef6d855973e0e0f05c7203a6bfa9a4cf01a (patch) | |
| tree | 82c09b8cff023557084d6257acdef84b1311dd35 /backend/Deadcodeproof.v | |
| parent | 92fc8a425034abc1247203a4c0d471e8b6d0e941 (diff) | |
| download | compcert-kvx-dff22ef6d855973e0e0f05c7203a6bfa9a4cf01a.tar.gz compcert-kvx-dff22ef6d855973e0e0f05c7203a6bfa9a4cf01a.zip | |
Extend builtin arguments with a pointer addition operator
This extension enables more addressing modes to be encoded as builtin arguments and used in conjunction with volatile memory accesses.
Current status: x86 port only, the only new addressing mode handled is reg + offset.
Diffstat (limited to 'backend/Deadcodeproof.v')
| -rw-r--r-- | backend/Deadcodeproof.v | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/backend/Deadcodeproof.v b/backend/Deadcodeproof.v index 3f0c5a4c..07c3f84a 100644 --- a/backend/Deadcodeproof.v +++ b/backend/Deadcodeproof.v @@ -609,6 +609,12 @@ Proof. constructor; auto. apply vagree_lessdef. apply Val.longofwords_lessdef; apply lessdef_vagree; auto. +- destruct (transfer_builtin_arg All (ne1, nm1) a1) as [ne' nm'] eqn:TR. + exploit IHeval_builtin_arg2; eauto. intros (v2' & A & B & C & D). + exploit IHeval_builtin_arg1; eauto. intros (v1' & P & Q & R & S). + econstructor; intuition auto. + econstructor; eauto. + destruct Archi.ptr64; auto using Val.add_lessdef, Val.addl_lessdef, vagree_lessdef, lessdef_vagree. Qed. Lemma transfer_builtin_args_sound: @@ -657,6 +663,9 @@ Proof. - destruct IHeval_builtin_arg1 as (v1' & A1). destruct IHeval_builtin_arg2 as (v2' & A2). exists (Val.longofwords v1' v2'); constructor; auto. +- destruct IHeval_builtin_arg1 as (v1' & A1). + destruct IHeval_builtin_arg2 as (v2' & A2). + econstructor; econstructor; eauto. Qed. Lemma can_eval_builtin_args: |