Add RTLBlock intermediate language

1 files changed, 69 insertions, 0 deletions

diff --git a/src/hls/RTLBlock.v b/src/hls/RTLBlock.v
new file mode 100644
index 0000000..7169d4a
--- /dev/null
+++ b/src/hls/RTLBlock.v
@@ -0,0 +1,69 @@
+(*
+ * Vericert: Verified high-level synthesis.
+ * Copyright (C) 2020 Yann Herklotz <yann@yannherklotz.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *)
+
+From compcert Require Import
+     Coqlib
+     AST
+     Maps
+     Op
+     RTL
+     Registers.
+
+Definition node := positive.
+
+Inductive instruction : Type :=
+| RBnop : instruction
+| RBop : operation -> list reg -> reg -> instruction
+| RBload : memory_chunk -> addressing -> list reg -> reg -> instruction
+| RBstore : memory_chunk -> addressing -> list reg -> reg -> instruction.
+
+Definition bblock_body : Type := list instruction.
+
+Inductive control_flow_inst : Type :=
+| RBcall : signature -> ident -> list reg -> reg -> node -> control_flow_inst
+| RBtailcall : signature -> ident -> list reg -> control_flow_inst
+| RBbuiltin : external_function -> list (builtin_arg reg) ->
+              builtin_res reg -> node -> control_flow_inst
+| RBcond : condition -> list reg -> node -> node -> control_flow_inst
+| RBjumptable : reg -> list node -> control_flow_inst
+| RBredurn : option reg -> control_flow_inst.
+
+Record bblock : Type := mk_bblock {
+    bb_body: bblock_body;
+    bb_exit: option control_flow_inst
+  }.
+
+Definition code : Type := PTree.t bblock.
+
+Record function: Type := mkfunction {
+  fn_sig: signature;
+  fn_params: list reg;
+  fn_stacksize: Z;
+  fn_code: code;
+  fn_entrypoint: node
+}.
+
+Definition fundef := AST.fundef function.
+
+Definition program := AST.program fundef unit.
+
+Definition funsig (fd: fundef) :=
+  match fd with
+  | Internal f => fn_sig f
+  | External ef => ef_sig ef
+  end.