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-rw-r--r--backend/Constpropproof.v11
1 files changed, 11 insertions, 0 deletions
diff --git a/backend/Constpropproof.v b/backend/Constpropproof.v
index 16f839fc..714468aa 100644
--- a/backend/Constpropproof.v
+++ b/backend/Constpropproof.v
@@ -355,6 +355,17 @@ Proof.
eapply exec_Itailcall; eauto. apply sig_function_translated; auto.
constructor; auto.
+ (* Ibuiltin *)
+ TransfInstr. intro.
+ exists (State s' (transf_function f) sp pc' (rs#res <- v) m'); split.
+ eapply exec_Ibuiltin; eauto.
+ eapply external_call_symbols_preserved; eauto.
+ exact symbols_preserved. exact varinfo_preserved.
+ econstructor; eauto.
+ eapply analyze_correct_1; eauto. simpl; auto.
+ unfold transfer; rewrite H.
+ apply regs_match_approx_update; auto. simpl; auto.
+
(* Icond, true *)
exists (State s' (transf_function f) sp ifso rs m); split.
caseEq (cond_strength_reduction (approx_reg (analyze f)!!pc) cond args);