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Added mem2reg option to verilog frontend

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This commit is contained in:
Clifford Wolf 2013-03-24 11:13:32 +01:00
parent 6960df7285
commit df9753d398
5 changed files with 31 additions and 11 deletions
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8
frontends/ast/ast.h
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@ -164,7 +164,7 @@ namespace AST
bool simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage);
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::set<AstNode*> &mem2reg_set, std::set<AstNode*> &mem2reg_candidates, bool sync_proc, bool async_proc);
void mem2reg_as_needed_pass1(std::set<AstNode*> &mem2reg_set, std::set<AstNode*> &mem2reg_candidates, bool sync_proc, bool async_proc, bool force_mem2reg);
void mem2reg_as_needed_pass2(std::set<AstNode*> &mem2reg_set, AstNode *mod, AstNode *block, AstNode *top_block);
void meminfo(int &mem_width, int &mem_size, int &addr_bits);
@ -189,13 +189,13 @@ namespace AST
};
// process an AST tree (ast must point to an AST_DESIGN node) and generate RTLIL code
void process(RTLIL::Design *design, AstNode *ast, bool dump_ast = false, bool dump_ast_diff = false, bool dump_vlog = false, bool nolatches = false, bool nomem2reg = false);
void process(RTLIL::Design *design, AstNode *ast, bool dump_ast = false, bool dump_ast_diff = false, bool dump_vlog = false, bool nolatches = false, bool nomem2reg = false, bool mem2reg = false);
// parametric modules are supported directly by the AST library
// therfore we need our own derivate of RTLIL::Module with overloaded virtual functions
struct AstModule : RTLIL::Module {
AstNode *ast;
bool nolatches, nomem2reg;
bool nolatches, nomem2reg, mem2reg;
virtual ~AstModule();
virtual RTLIL::IdString derive(RTLIL::Design *design, std::map<RTLIL::IdString, RTLIL::Const> parameters);
virtual void update_auto_wires(std::map<RTLIL::IdString, int> auto_sizes);
@ -217,7 +217,7 @@ namespace AST
namespace AST_INTERNAL
{
// internal state variables
extern bool flag_dump_ast, flag_dump_ast_diff, flag_nolatches, flag_nomem2reg;
extern bool flag_dump_ast, flag_dump_ast_diff, flag_nolatches, flag_nomem2reg, flag_mem2reg;
extern AST::AstNode *current_ast, *current_ast_mod;
extern std::map<std::string, AST::AstNode*> current_scope;
extern RTLIL::SigSpec *genRTLIL_subst_from, *genRTLIL_subst_to;