Created basic support for function calls in parameter values

1 files changed, 6 insertions, 1 deletions

diff --git a/frontends/ast/ast.h b/frontends/ast/ast.h
index 8335db09..ec4f4f62 100644
--- a/frontends/ast/ast.h
+++ b/frontends/ast/ast.h
@@ -190,7 +190,7 @@ namespace AST
 
 		// simplify() creates a simpler AST by unrolling for-loops, expanding generate blocks, etc.
 		// it also sets the id2ast pointers so that identifier lookups are fast in genRTLIL()
-		bool simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage, int width_hint, bool sign_hint);
+		bool simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage, int width_hint, bool sign_hint, bool in_param);
 		void expand_genblock(std::string index_var, std::string prefix, std::map<std::string, std::string> &name_map);
 		void replace_ids(std::map<std::string, std::string> &rules);
 		void mem2reg_as_needed_pass1(std::map<AstNode*, std::set<std::string>> &mem2reg_places,
@@ -198,6 +198,11 @@ namespace AST
 		void mem2reg_as_needed_pass2(std::set<AstNode*> &mem2reg_set, AstNode *mod, AstNode *block);
 		void meminfo(int &mem_width, int &mem_size, int &addr_bits);
 
+		// additional functionality for evaluating constant functions
+		struct varinfo_t { RTLIL::Const val; int offset; bool is_signed; };
+		void replace_variables(std::map<std::string, varinfo_t> &variables, AstNode *fcall);
+		AstNode *eval_const_function(AstNode *fcall);
+
 		// create a human-readable text representation of the AST (for debugging)
 		void dumpAst(FILE *f, std::string indent);
 		void dumpVlog(FILE *f, std::string indent);