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authorXavier Leroy <xavier.leroy@inria.fr>2017-06-15 15:11:26 +0200
committerBernhard Schommer <bschommer@users.noreply.github.com>2017-07-06 15:41:51 +0200
commitdff22ef6d855973e0e0f05c7203a6bfa9a4cf01a (patch)
tree82c09b8cff023557084d6257acdef84b1311dd35 /backend/Allocproof.v
parent92fc8a425034abc1247203a4c0d471e8b6d0e941 (diff)
downloadcompcert-dff22ef6d855973e0e0f05c7203a6bfa9a4cf01a.tar.gz
compcert-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/Allocproof.v')
-rw-r--r--backend/Allocproof.v5
1 files changed, 5 insertions, 0 deletions
diff --git a/backend/Allocproof.v b/backend/Allocproof.v
index 3b2ecd35..6c10d27f 100644
--- a/backend/Allocproof.v
+++ b/backend/Allocproof.v
@@ -1560,6 +1560,11 @@ Proof.
intros (v1 & A & B).
exploit IHeval_builtin_arg2; eauto. intros (v2 & C & D).
exists (Val.longofwords v1 v2); split; auto with barg. apply Val.longofwords_lessdef; auto.
+- exploit IHeval_builtin_arg1; eauto. eapply add_equations_builtin_arg_satisf; eauto.
+ intros (v1' & A & B).
+ exploit IHeval_builtin_arg2; eauto. intros (v2' & C & D).
+ econstructor; split. eauto with barg.
+ destruct Archi.ptr64; auto using Val.add_lessdef, Val.addl_lessdef.
Qed.
Lemma add_equations_builtin_args_satisf: