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Fix generate scoping issues

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- expand_genblock defers prefixing of items within named sub-blocks
- Allow partially-qualified references to local scopes
- Handle shadowing within generate blocks
- Resolve generate scope references within tasks and functions
- Apply generate scoping to genvars
- Resolves #2214, resolves #1456
This commit is contained in:
Zachary Snow 2020-07-31 20:13:05 -06:00
parent c39ebe6ae0
commit c3e95eb1ab
3 changed files with 168 additions and 42 deletions
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2
frontends/ast/ast.h
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@ -250,7 +250,7 @@ namespace AST
// 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 in_param);
AstNode *readmem(bool is_readmemh, std::string mem_filename, AstNode *memory, int start_addr, int finish_addr, bool unconditional_init);
void expand_genblock(std::string index_var, std::string prefix, std::map<std::string, std::string> &name_map);
void expand_genblock(std::string index_var, std::string prefix, std::map<std::string, std::string> &name_map, bool original_scope = true);
void replace_ids(const std::string &prefix, const std::map<std::string, std::string> &rules);
void mem2reg_as_needed_pass1(dict<AstNode*, pool<std::string>> &mem2reg_places,
dict<AstNode*, uint32_t> &mem2reg_flags, dict<AstNode*, uint32_t> &proc_flags, uint32_t &status_flags);