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-rw-r--r--frontends/aiger/aigerparse.cc14
-rw-r--r--frontends/aiger/aigerparse.h2
-rw-r--r--frontends/ast/genrtlil.cc2
-rw-r--r--frontends/ast/simplify.cc21
-rw-r--r--frontends/verilog/verilog_lexer.l4
-rw-r--r--frontends/verilog/verilog_parser.y79
6 files changed, 84 insertions, 38 deletions
diff --git a/frontends/aiger/aigerparse.cc b/frontends/aiger/aigerparse.cc
index 6fda92d73..d25587e48 100644
--- a/frontends/aiger/aigerparse.cc
+++ b/frontends/aiger/aigerparse.cc
@@ -454,6 +454,14 @@ void AigerReader::parse_xaiger()
for (unsigned i = 0; i < flopNum; i++)
mergeability.emplace_back(parse_xaiger_literal(f));
}
+ else if (c == 's') {
+ uint32_t dataSize YS_ATTRIBUTE(unused) = parse_xaiger_literal(f);
+ flopNum = parse_xaiger_literal(f);
+ log_assert(dataSize == (flopNum+1) * sizeof(uint32_t));
+ initial_state.reserve(flopNum);
+ for (unsigned i = 0; i < flopNum; i++)
+ initial_state.emplace_back(parse_xaiger_literal(f));
+ }
else if (c == 'n') {
parse_xaiger_literal(f);
f >> s;
@@ -767,6 +775,7 @@ void AigerReader::post_process()
}
}
+ dict<int, Wire*> mergeability_to_clock;
for (uint32_t i = 0; i < flopNum; i++) {
RTLIL::Wire *d = outputs[outputs.size() - flopNum + i];
log_assert(d);
@@ -778,10 +787,9 @@ void AigerReader::post_process()
log_assert(q->port_input);
q->port_input = false;
- auto ff = module->addCell(NEW_ID, ID($__ABC9_FF_));
- ff->setPort(ID::D, d);
- ff->setPort(ID::Q, q);
+ Cell* ff = module->addFfGate(NEW_ID, d, q);
ff->attributes[ID::abc9_mergeability] = mergeability[i];
+ q->attributes[ID::init] = initial_state[i];
}
dict<RTLIL::IdString, std::pair<int,int>> wideports_cache;
diff --git a/frontends/aiger/aigerparse.h b/frontends/aiger/aigerparse.h
index 46ac81212..251a24977 100644
--- a/frontends/aiger/aigerparse.h
+++ b/frontends/aiger/aigerparse.h
@@ -45,7 +45,7 @@ struct AigerReader
std::vector<RTLIL::Wire*> outputs;
std::vector<RTLIL::Wire*> bad_properties;
std::vector<RTLIL::Cell*> boxes;
- std::vector<int> mergeability;
+ std::vector<int> mergeability, initial_state;
AigerReader(RTLIL::Design *design, std::istream &f, RTLIL::IdString module_name, RTLIL::IdString clk_name, std::string map_filename, bool wideports);
void parse_aiger();
diff --git a/frontends/ast/genrtlil.cc b/frontends/ast/genrtlil.cc
index d4e9baa5f..cdc3adc9c 100644
--- a/frontends/ast/genrtlil.cc
+++ b/frontends/ast/genrtlil.cc
@@ -1055,7 +1055,7 @@ RTLIL::SigSpec AstNode::genRTLIL(int width_hint, bool sign_hint)
if (!range_valid)
log_file_error(filename, location.first_line, "Signal `%s' with non-constant width!\n", str.c_str());
- if (!(range_left >= range_right || (range_left == -1 && range_right == 0)))
+ if (!(range_left + 1 >= range_right))
log_file_error(filename, location.first_line, "Signal `%s' with invalid width range %d!\n", str.c_str(), range_left - range_right + 1);
RTLIL::Wire *wire = current_module->addWire(str, range_left - range_right + 1);
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index 318ffc1be..3314819fb 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -1080,7 +1080,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
}
if (old_range_valid != range_valid)
did_something = true;
- if (range_valid && range_left >= 0 && range_right > range_left) {
+ if (range_valid && range_right > range_left) {
int tmp = range_right;
range_right = range_left;
range_left = tmp;
@@ -1098,6 +1098,25 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
range_swapped = children[0]->range_swapped;
range_left = children[0]->range_left;
range_right = children[0]->range_right;
+ bool force_upto = false, force_downto = false;
+ if (attributes.count(ID::force_upto)) {
+ AstNode *val = attributes[ID::force_upto];
+ if (val->type != AST_CONSTANT)
+ log_file_error(filename, location.first_line, "Attribute `force_upto' with non-constant value!\n");
+ force_upto = val->asAttrConst().as_bool();
+ }
+ if (attributes.count(ID::force_downto)) {
+ AstNode *val = attributes[ID::force_downto];
+ if (val->type != AST_CONSTANT)
+ log_file_error(filename, location.first_line, "Attribute `force_downto' with non-constant value!\n");
+ force_downto = val->asAttrConst().as_bool();
+ }
+ if (force_upto && force_downto)
+ log_file_error(filename, location.first_line, "Attributes `force_downto' and `force_upto' cannot be both set!\n");
+ if ((force_upto && !range_swapped) || (force_downto && range_swapped)) {
+ std::swap(range_left, range_right);
+ range_swapped = force_upto;
+ }
}
} else {
if (!range_valid)
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l
index f6a3ac4db..65a2e9a78 100644
--- a/frontends/verilog/verilog_lexer.l
+++ b/frontends/verilog/verilog_lexer.l
@@ -128,7 +128,9 @@ static bool isUserType(std::string &s)
%x BASED_CONST
%%
- int comment_caller;
+ // Initialise comment_caller to something to avoid a "maybe undefined"
+ // warning from GCC.
+ int comment_caller = INITIAL;
<INITIAL,SYNOPSYS_TRANSLATE_OFF>"`file_push "[^\n]* {
fn_stack.push_back(current_filename);
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index db9a130cf..c8223f41d 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -853,7 +853,19 @@ task_func_port:
}
if (astbuf2 && astbuf2->children.size() != 2)
frontend_verilog_yyerror("task/function argument range must be of the form: [<expr>:<expr>], [<expr>+:<expr>], or [<expr>-:<expr>]");
- } wire_name | wire_name;
+ } wire_name |
+ {
+ if (!astbuf1) {
+ if (!sv_mode)
+ frontend_verilog_yyerror("task/function argument direction missing");
+ albuf = new dict<IdString, AstNode*>;
+ astbuf1 = new AstNode(AST_WIRE);
+ current_wire_rand = false;
+ current_wire_const = false;
+ astbuf1->is_input = true;
+ astbuf2 = NULL;
+ }
+ } wire_name;
task_func_body:
task_func_body behavioral_stmt |
@@ -2191,49 +2203,56 @@ assert_property:
};
simple_behavioral_stmt:
- lvalue '=' delay expr {
- AstNode *node = new AstNode(AST_ASSIGN_EQ, $1, $4);
+ attr lvalue '=' delay expr {
+ AstNode *node = new AstNode(AST_ASSIGN_EQ, $2, $5);
ast_stack.back()->children.push_back(node);
- SET_AST_NODE_LOC(node, @1, @4);
+ SET_AST_NODE_LOC(node, @2, @5);
+ append_attr(node, $1);
} |
- lvalue TOK_INCREMENT {
- AstNode *node = new AstNode(AST_ASSIGN_EQ, $1, new AstNode(AST_ADD, $1->clone(), AstNode::mkconst_int(1, true)));
+ attr lvalue TOK_INCREMENT {
+ AstNode *node = new AstNode(AST_ASSIGN_EQ, $2, new AstNode(AST_ADD, $2->clone(), AstNode::mkconst_int(1, true)));
ast_stack.back()->children.push_back(node);
- SET_AST_NODE_LOC(node, @1, @2);
+ SET_AST_NODE_LOC(node, @2, @3);
+ append_attr(node, $1);
} |
- lvalue TOK_DECREMENT {
- AstNode *node = new AstNode(AST_ASSIGN_EQ, $1, new AstNode(AST_SUB, $1->clone(), AstNode::mkconst_int(1, true)));
+ attr lvalue TOK_DECREMENT {
+ AstNode *node = new AstNode(AST_ASSIGN_EQ, $2, new AstNode(AST_SUB, $2->clone(), AstNode::mkconst_int(1, true)));
ast_stack.back()->children.push_back(node);
- SET_AST_NODE_LOC(node, @1, @2);
+ SET_AST_NODE_LOC(node, @2, @3);
+ append_attr(node, $1);
} |
- lvalue OP_LE delay expr {
- AstNode *node = new AstNode(AST_ASSIGN_LE, $1, $4);
+ attr lvalue OP_LE delay expr {
+ AstNode *node = new AstNode(AST_ASSIGN_LE, $2, $5);
ast_stack.back()->children.push_back(node);
- SET_AST_NODE_LOC(node, @1, @4);
+ SET_AST_NODE_LOC(node, @2, @5);
+ append_attr(node, $1);
};
// this production creates the obligatory if-else shift/reduce conflict
behavioral_stmt:
defattr | assert | wire_decl | param_decl | localparam_decl | typedef_decl |
non_opt_delay behavioral_stmt |
- simple_behavioral_stmt ';' | ';' |
- hierarchical_id attr {
+ simple_behavioral_stmt ';' |
+ attr ';' {
+ free_attr($1);
+ } |
+ attr hierarchical_id {
AstNode *node = new AstNode(AST_TCALL);
- node->str = *$1;
- delete $1;
+ node->str = *$2;
+ delete $2;
ast_stack.back()->children.push_back(node);
ast_stack.push_back(node);
- append_attr(node, $2);
+ append_attr(node, $1);
} opt_arg_list ';'{
ast_stack.pop_back();
} |
- TOK_MSG_TASKS attr {
+ attr TOK_MSG_TASKS {
AstNode *node = new AstNode(AST_TCALL);
- node->str = *$1;
- delete $1;
+ node->str = *$2;
+ delete $2;
ast_stack.back()->children.push_back(node);
ast_stack.push_back(node);
- append_attr(node, $2);
+ append_attr(node, $1);
} opt_arg_list ';'{
ast_stack.pop_back();
} |
@@ -2330,8 +2349,6 @@ behavioral_stmt:
ast_stack.pop_back();
};
- ;
-
unique_case_attr:
/* empty */ {
$$ = false;
@@ -2426,7 +2443,7 @@ gen_case_item:
} case_select {
case_type_stack.push_back(0);
SET_AST_NODE_LOC(ast_stack.back(), @2, @2);
- } gen_stmt_or_null {
+ } gen_stmt_block {
case_type_stack.pop_back();
ast_stack.pop_back();
};
@@ -2518,7 +2535,10 @@ module_gen_body:
/* empty */;
gen_stmt_or_module_body_stmt:
- gen_stmt | module_body_stmt;
+ gen_stmt | module_body_stmt |
+ attr ';' {
+ free_attr($1);
+ };
// this production creates the obligatory if-else shift/reduce conflict
gen_stmt:
@@ -2540,7 +2560,7 @@ gen_stmt:
AstNode *block = new AstNode(AST_GENBLOCK);
ast_stack.back()->children.push_back(block);
ast_stack.push_back(block);
- } gen_stmt_or_null {
+ } gen_stmt_block {
ast_stack.pop_back();
} opt_gen_else {
SET_AST_NODE_LOC(ast_stack.back(), @1, @7);
@@ -2590,11 +2610,8 @@ gen_stmt_block:
ast_stack.pop_back();
};
-gen_stmt_or_null:
- gen_stmt_block | ';';
-
opt_gen_else:
- TOK_ELSE gen_stmt_or_null | /* empty */ %prec FAKE_THEN;
+ TOK_ELSE gen_stmt_block | /* empty */ %prec FAKE_THEN;
expr:
basic_expr {
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-09 23:57:56 +0000