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.

1 files changed, 21 insertions, 0 deletions

diff --git a/x86/Op.v b/x86/Op.v
index 8ace5067..136c900b 100644
--- a/x86/Op.v
+++ b/x86/Op.v
@@ -1455,3 +1455,24 @@ Proof.
 Qed.
 
 End EVAL_INJECT.
+
+(** * Handling of builtin arguments *)
+
+Definition builtin_arg_ok_1
+       (A: Type) (ba: builtin_arg A) (c: builtin_arg_constraint) :=
+  match c, ba with
+  | OK_all, _ => true
+  | OK_const, (BA_int _ | BA_long _ | BA_float _ | BA_single _) => true
+  | OK_addrstack, BA_addrstack _ => true
+  | OK_addressing, BA_addrstack _ => true
+  | OK_addressing, BA_addrglobal _ _ => true
+  | OK_addressing, BA_addptr (BA _) (BA_int _ | BA_long _) => true
+  | _, _ => false
+  end.
+
+Definition builtin_arg_ok
+       (A: Type) (ba: builtin_arg A) (c: builtin_arg_constraint) :=
+  match ba with
+  | (BA _ | BA_splitlong (BA _) (BA _)) => true
+  | _ => builtin_arg_ok_1 ba c
+  end.