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authorClifford Wolf <clifford@clifford.at>2013-11-21 13:49:00 +0100
committerClifford Wolf <clifford@clifford.at>2013-11-21 13:49:00 +0100
commit09471846c553855c43224ce32d855c46f4df5140 (patch)
tree659fff2b882e2d7c54a5eaf72adeed2328d4ba64 /frontends/ast/ast.h
parent84ced2bb8ee2e6498b53ae6cdb77930aa98affbb (diff)
Major improvements in mem2reg and added "init" sync rules
Diffstat (limited to 'frontends/ast/ast.h')
-rw-r--r--frontends/ast/ast.h21
1 files changed, 20 insertions, 1 deletions
diff --git a/frontends/ast/ast.h b/frontends/ast/ast.h
index 37f75454..de32a2bb 100644
--- a/frontends/ast/ast.h
+++ b/frontends/ast/ast.h
@@ -162,12 +162,31 @@ namespace AST
void delete_children();
~AstNode();
+ enum mem2reg_flags
+ {
+ /* status flags */
+ MEM2REG_FL_ALL = 0x00000001,
+ MEM2REG_FL_ASYNC = 0x00000002,
+ MEM2REG_FL_INIT = 0x00000004,
+
+ /* candidate flags */
+ MEM2REG_FL_FORCED = 0x00000100,
+ MEM2REG_FL_SET_INIT = 0x00000200,
+ MEM2REG_FL_SET_ELSE = 0x00000400,
+ MEM2REG_FL_SET_ASYNC = 0x00000800,
+ MEM2REG_FL_EQ2 = 0x00001000,
+
+ /* proc flags */
+ MEM2REG_FL_EQ1 = 0x01000000,
+ };
+
// 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);
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, bool force_mem2reg);
+ void mem2reg_as_needed_pass1(std::map<AstNode*, std::set<std::string>> &mem2reg_places,
+ std::map<AstNode*, uint32_t> &mem2reg_flags, std::map<AstNode*, uint32_t> &proc_flags, uint32_t &status_flags);
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);