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-rw-r--r--frontends/ast/ast.cc149
1 files changed, 132 insertions, 17 deletions
diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc
index 5a1bae7a7..b5b968e9e 100644
--- a/frontends/ast/ast.cc
+++ b/frontends/ast/ast.cc
@@ -45,8 +45,8 @@ namespace AST {
// instantiate global variables (private API)
namespace AST_INTERNAL {
- bool flag_dump_ast1, flag_dump_ast2, flag_no_dump_ptr, flag_dump_vlog, flag_dump_rtlil, flag_nolatches, flag_nomeminit;
- bool flag_nomem2reg, flag_mem2reg, flag_lib, flag_noopt, flag_icells, flag_autowire;
+ bool flag_dump_ast1, flag_dump_ast2, flag_no_dump_ptr, flag_dump_vlog1, flag_dump_vlog2, flag_dump_rtlil, flag_nolatches, flag_nomeminit;
+ bool flag_nomem2reg, flag_mem2reg, flag_noblackbox, flag_lib, flag_nowb, flag_noopt, flag_icells, flag_autowire;
AstNode *current_ast, *current_ast_mod;
std::map<std::string, AstNode*> current_scope;
const dict<RTLIL::SigBit, RTLIL::SigBit> *genRTLIL_subst_ptr = NULL;
@@ -154,6 +154,7 @@ std::string AST::type2str(AstNodeType type)
X(AST_GENIF)
X(AST_GENCASE)
X(AST_GENBLOCK)
+ X(AST_TECALL)
X(AST_POSEDGE)
X(AST_NEGEDGE)
X(AST_EDGE)
@@ -194,6 +195,9 @@ AstNode::AstNode(AstNodeType type, AstNode *child1, AstNode *child2, AstNode *ch
is_logic = false;
is_signed = false;
is_string = false;
+ is_wand = false;
+ is_wor = false;
+ is_unsized = false;
was_checked = false;
range_valid = false;
range_swapped = false;
@@ -431,9 +435,12 @@ void AstNode::dumpVlog(FILE *f, std::string indent) const
break;
case AST_RANGE:
- if (range_valid)
- fprintf(f, "[%d:%d]", range_left, range_right);
- else {
+ if (range_valid) {
+ if (range_swapped)
+ fprintf(f, "[%d:%d]", range_right, range_left);
+ else
+ fprintf(f, "[%d:%d]", range_left, range_right);
+ } else {
for (auto child : children) {
fprintf(f, "%c", first ? '[' : ':');
child->dumpVlog(f, "");
@@ -562,7 +569,8 @@ void AstNode::dumpVlog(FILE *f, std::string indent) const
case AST_CONCAT:
fprintf(f, "{");
- for (auto child : children) {
+ for (int i = GetSize(children)-1; i >= 0; i--) {
+ auto child = children[i];
if (!first)
fprintf(f, ", ");
child->dumpVlog(f, "");
@@ -718,7 +726,7 @@ AstNode *AstNode::mkconst_int(uint32_t v, bool is_signed, int width)
}
// create an AST node for a constant (using a bit vector as value)
-AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signed)
+AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signed, bool is_unsized)
{
AstNode *node = new AstNode(AST_CONSTANT);
node->is_signed = is_signed;
@@ -732,9 +740,15 @@ AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signe
node->range_valid = true;
node->range_left = node->bits.size()-1;
node->range_right = 0;
+ node->is_unsized = is_unsized;
return node;
}
+AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signed)
+{
+ return mkconst_bits(v, is_signed, false);
+}
+
// create an AST node for a constant (using a string in bit vector form as value)
AstNode *AstNode::mkconst_str(const std::vector<RTLIL::State> &v)
{
@@ -771,6 +785,14 @@ bool AstNode::bits_only_01() const
return true;
}
+RTLIL::Const AstNode::bitsAsUnsizedConst(int width)
+{
+ RTLIL::State extbit = bits.back();
+ while (width > int(bits.size()))
+ bits.push_back(extbit);
+ return RTLIL::Const(bits);
+}
+
RTLIL::Const AstNode::bitsAsConst(int width, bool is_signed)
{
std::vector<RTLIL::State> bits = this->bits;
@@ -926,28 +948,106 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast
ast_before_simplify = ast->clone();
if (flag_dump_ast1) {
- log("Dumping Verilog AST before simplification:\n");
+ log("Dumping AST before simplification:\n");
ast->dumpAst(NULL, " ");
log("--- END OF AST DUMP ---\n");
}
+ if (flag_dump_vlog1) {
+ log("Dumping Verilog AST before simplification:\n");
+ ast->dumpVlog(NULL, " ");
+ log("--- END OF AST DUMP ---\n");
+ }
if (!defer)
{
+ bool blackbox_module = flag_lib;
+
+ if (!blackbox_module && !flag_noblackbox) {
+ blackbox_module = true;
+ for (auto child : ast->children) {
+ if (child->type == AST_WIRE && (child->is_input || child->is_output))
+ continue;
+ if (child->type == AST_PARAMETER || child->type == AST_LOCALPARAM)
+ continue;
+ if (child->type == AST_CELL && child->children.size() > 0 && child->children[0]->type == AST_CELLTYPE &&
+ (child->children[0]->str == "$specify2" || child->children[0]->str == "$specify3" || child->children[0]->str == "$specrule"))
+ continue;
+ blackbox_module = false;
+ break;
+ }
+ }
+
while (ast->simplify(!flag_noopt, false, false, 0, -1, false, false)) { }
if (flag_dump_ast2) {
- log("Dumping Verilog AST after simplification:\n");
+ log("Dumping AST after simplification:\n");
ast->dumpAst(NULL, " ");
log("--- END OF AST DUMP ---\n");
}
- if (flag_dump_vlog) {
- log("Dumping Verilog AST (as requested by dump_vlog option):\n");
+ if (flag_dump_vlog2) {
+ log("Dumping Verilog AST after simplification:\n");
ast->dumpVlog(NULL, " ");
log("--- END OF AST DUMP ---\n");
}
- if (flag_lib) {
+ if (flag_nowb && ast->attributes.count("\\whitebox")) {
+ delete ast->attributes.at("\\whitebox");
+ ast->attributes.erase("\\whitebox");
+ }
+
+ if (ast->attributes.count("\\lib_whitebox")) {
+ if (!flag_lib || flag_nowb) {
+ delete ast->attributes.at("\\lib_whitebox");
+ ast->attributes.erase("\\lib_whitebox");
+ } else {
+ if (ast->attributes.count("\\whitebox")) {
+ delete ast->attributes.at("\\whitebox");
+ ast->attributes.erase("\\whitebox");
+ }
+ AstNode *n = ast->attributes.at("\\lib_whitebox");
+ ast->attributes["\\whitebox"] = n;
+ ast->attributes.erase("\\lib_whitebox");
+ }
+ }
+
+ if (!blackbox_module && ast->attributes.count("\\blackbox")) {
+ AstNode *n = ast->attributes.at("\\blackbox");
+ if (n->type != AST_CONSTANT)
+ log_file_error(ast->filename, ast->linenum, "Got blackbox attribute with non-constant value!\n");
+ blackbox_module = n->asBool();
+ }
+
+ if (blackbox_module && ast->attributes.count("\\whitebox")) {
+ AstNode *n = ast->attributes.at("\\whitebox");
+ if (n->type != AST_CONSTANT)
+ log_file_error(ast->filename, ast->linenum, "Got whitebox attribute with non-constant value!\n");
+ blackbox_module = !n->asBool();
+ }
+
+ if (ast->attributes.count("\\noblackbox")) {
+ if (blackbox_module) {
+ AstNode *n = ast->attributes.at("\\noblackbox");
+ if (n->type != AST_CONSTANT)
+ log_file_error(ast->filename, ast->linenum, "Got noblackbox attribute with non-constant value!\n");
+ blackbox_module = !n->asBool();
+ }
+ delete ast->attributes.at("\\noblackbox");
+ ast->attributes.erase("\\noblackbox");
+ }
+
+ if (blackbox_module)
+ {
+ if (ast->attributes.count("\\whitebox")) {
+ delete ast->attributes.at("\\whitebox");
+ ast->attributes.erase("\\whitebox");
+ }
+
+ if (ast->attributes.count("\\lib_whitebox")) {
+ delete ast->attributes.at("\\lib_whitebox");
+ ast->attributes.erase("\\lib_whitebox");
+ }
+
std::vector<AstNode*> new_children;
for (auto child : ast->children) {
if (child->type == AST_WIRE && (child->is_input || child->is_output)) {
@@ -956,12 +1056,19 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast
child->delete_children();
child->children.push_back(AstNode::mkconst_int(0, false, 0));
new_children.push_back(child);
+ } else if (child->type == AST_CELL && child->children.size() > 0 && child->children[0]->type == AST_CELLTYPE &&
+ (child->children[0]->str == "$specify2" || child->children[0]->str == "$specify3" || child->children[0]->str == "$specrule")) {
+ new_children.push_back(child);
} else {
delete child;
}
}
+
ast->children.swap(new_children);
- ast->attributes["\\blackbox"] = AstNode::mkconst_int(1, false);
+
+ if (ast->attributes.count("\\blackbox") == 0) {
+ ast->attributes["\\blackbox"] = AstNode::mkconst_int(1, false);
+ }
}
ignoreThisSignalsInInitial = RTLIL::SigSpec();
@@ -1000,7 +1107,9 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast
current_module->nomeminit = flag_nomeminit;
current_module->nomem2reg = flag_nomem2reg;
current_module->mem2reg = flag_mem2reg;
+ current_module->noblackbox = flag_noblackbox;
current_module->lib = flag_lib;
+ current_module->nowb = flag_nowb;
current_module->noopt = flag_noopt;
current_module->icells = flag_icells;
current_module->autowire = flag_autowire;
@@ -1016,20 +1125,23 @@ static AstModule* process_module(AstNode *ast, bool defer, AstNode *original_ast
}
// create AstModule instances for all modules in the AST tree and add them to 'design'
-void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump_ast2, bool no_dump_ptr, bool dump_vlog, bool dump_rtlil,
- bool nolatches, bool nomeminit, bool nomem2reg, bool mem2reg, bool lib, bool noopt, bool icells, bool nooverwrite, bool overwrite, bool defer, bool autowire)
+void AST::process(RTLIL::Design *design, AstNode *ast, bool dump_ast1, bool dump_ast2, bool no_dump_ptr, bool dump_vlog1, bool dump_vlog2, bool dump_rtlil,
+ bool nolatches, bool nomeminit, bool nomem2reg, bool mem2reg, bool noblackbox, bool lib, bool nowb, bool noopt, bool icells, bool nooverwrite, bool overwrite, bool defer, bool autowire)
{
current_ast = ast;
flag_dump_ast1 = dump_ast1;
flag_dump_ast2 = dump_ast2;
flag_no_dump_ptr = no_dump_ptr;
- flag_dump_vlog = dump_vlog;
+ flag_dump_vlog1 = dump_vlog1;
+ flag_dump_vlog2 = dump_vlog2;
flag_dump_rtlil = dump_rtlil;
flag_nolatches = nolatches;
flag_nomeminit = nomeminit;
flag_nomem2reg = nomem2reg;
flag_mem2reg = mem2reg;
+ flag_noblackbox = noblackbox;
flag_lib = lib;
+ flag_nowb = nowb;
flag_noopt = noopt;
flag_icells = icells;
flag_autowire = autowire;
@@ -1357,12 +1469,15 @@ std::string AstModule::derive_common(RTLIL::Design *design, dict<RTLIL::IdString
current_ast = NULL;
flag_dump_ast1 = false;
flag_dump_ast2 = false;
- flag_dump_vlog = false;
+ flag_dump_vlog1 = false;
+ flag_dump_vlog2 = false;
flag_nolatches = nolatches;
flag_nomeminit = nomeminit;
flag_nomem2reg = nomem2reg;
flag_mem2reg = mem2reg;
+ flag_noblackbox = noblackbox;
flag_lib = lib;
+ flag_nowb = nowb;
flag_noopt = noopt;
flag_icells = icells;
flag_autowire = autowire;
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 12:53:58 +0000