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-rw-r--r--frontends/ast/simplify.cc6
-rw-r--r--frontends/verific/verific.cc2
-rw-r--r--passes/sat/sim.cc5
-rw-r--r--passes/techmap/techmap.cc5
-rw-r--r--passes/tests/test_cell.cc4
-rw-r--r--techlibs/common/gen_fine_ffs.py2
-rw-r--r--techlibs/common/simcells.v8
-rw-r--r--tests/various/const_func.v75
-rw-r--r--tests/various/const_func.ys1
9 files changed, 96 insertions, 12 deletions
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index 55e7da0aa..c819924a0 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -1126,6 +1126,10 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
bool in_param_here = in_param;
if (i == 0 && (type == AST_REPLICATE || type == AST_WIRE))
const_fold_here = true, in_param_here = true;
+ if (i == 0 && (type == AST_GENIF || type == AST_GENCASE))
+ in_param_here = true;
+ if (i == 1 && (type == AST_FOR || type == AST_GENFOR))
+ in_param_here = true;
if (type == AST_PARAMETER || type == AST_LOCALPARAM)
const_fold_here = true;
if (i == 0 && (type == AST_ASSIGN || type == AST_ASSIGN_EQ || type == AST_ASSIGN_LE))
@@ -1942,7 +1946,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
continue;
buf = child->clone();
- while (buf->simplify(true, false, false, stage, width_hint, sign_hint, false)) { }
+ while (buf->simplify(true, false, false, stage, width_hint, sign_hint, true)) { }
if (buf->type != AST_CONSTANT) {
// for (auto f : log_files)
// dumpAst(f, "verilog-ast> ");
diff --git a/frontends/verific/verific.cc b/frontends/verific/verific.cc
index ccd13e92f..9785b8eff 100644
--- a/frontends/verific/verific.cc
+++ b/frontends/verific/verific.cc
@@ -53,7 +53,7 @@ USING_YOSYS_NAMESPACE
# error "Only Symbiotic EDA flavored Verific is supported. Please contact office@symbioticeda.com for commercial support for Yosys+Verific."
#endif
-#if SYMBIOTIC_VERIFIC_API_VERSION < 1
+#if SYMBIOTIC_VERIFIC_API_VERSION < 202006
# error "Please update your version of Symbiotic EDA flavored Verific."
#endif
diff --git a/passes/sat/sim.cc b/passes/sat/sim.cc
index 1ab082b09..fb496ff87 100644
--- a/passes/sat/sim.cc
+++ b/passes/sat/sim.cc
@@ -163,7 +163,10 @@ struct SimInstance
mem_database[cell] = mem;
}
-
+ if (cell->type.in(ID($memwr),ID($memrd)))
+ {
+ log_error("$memrd and $memwr cells have to be merged to stand-alone $mem cells (execute memory_collect pass)\n");
+ }
if (cell->type.in(ID($assert), ID($cover), ID($assume))) {
formal_database.insert(cell);
}
diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc
index 1cee51d06..f98d1564a 100644
--- a/passes/techmap/techmap.cc
+++ b/passes/techmap/techmap.cc
@@ -328,8 +328,9 @@ struct TechmapWorker
for (auto tpl_cell : tpl->cells())
{
IdString c_name = tpl_cell->name;
+ bool techmap_replace_cell = (c_name == ID::_TECHMAP_REPLACE_);
- if (c_name == ID::_TECHMAP_REPLACE_)
+ if (techmap_replace_cell)
c_name = orig_cell_name;
else if (tpl_cell->name.begins_with("\\_TECHMAP_REPLACE_."))
c_name = stringf("%s%s", orig_cell_name.c_str(), c_name.c_str() + strlen("\\_TECHMAP_REPLACE_"));
@@ -384,7 +385,7 @@ struct TechmapWorker
if (c->attributes.count(ID::src))
c->add_strpool_attribute(ID::src, extra_src_attrs);
- if (c_name == ID::_TECHMAP_REPLACE_)
+ if (techmap_replace_cell)
for (auto attr : cell->attributes)
if (!c->attributes.count(attr.first))
c->attributes[attr.first] = attr.second;
diff --git a/passes/tests/test_cell.cc b/passes/tests/test_cell.cc
index 125efbaa3..bdb475d3b 100644
--- a/passes/tests/test_cell.cc
+++ b/passes/tests/test_cell.cc
@@ -909,7 +909,7 @@ struct TestCellPass : public Pass {
if (!ilang_file.empty()) {
if (!selected_cell_types.empty())
log_cmd_error("Do not specify any cell types when using -f.\n");
- selected_cell_types.push_back("ilang");
+ selected_cell_types.push_back(ID(ilang));
}
if (selected_cell_types.empty())
@@ -921,7 +921,7 @@ struct TestCellPass : public Pass {
for (int i = 0; i < num_iter; i++)
{
RTLIL::Design *design = new RTLIL::Design;
- if (cell_type == "ilang")
+ if (cell_type == ID(ilang))
Frontend::frontend_call(design, NULL, std::string(), "ilang " + ilang_file);
else
create_gold_module(design, cell_type, cell_types.at(cell_type), constmode, muxdiv);
diff --git a/techlibs/common/gen_fine_ffs.py b/techlibs/common/gen_fine_ffs.py
index e92d58f40..5d331e767 100644
--- a/techlibs/common/gen_fine_ffs.py
+++ b/techlibs/common/gen_fine_ffs.py
@@ -300,7 +300,7 @@ module \$_DLATCH_{E:N|P}{R:N|P}{V:0|1}_ (E, R, D, Q);
input E, R, D;
output reg Q;
always @* begin
- if (R == {E:0|1})
+ if (R == {R:0|1})
Q <= {V:0|1};
else if (E == {E:0|1})
Q <= D;
diff --git a/techlibs/common/simcells.v b/techlibs/common/simcells.v
index 01b5bdfa6..27ef44232 100644
--- a/techlibs/common/simcells.v
+++ b/techlibs/common/simcells.v
@@ -2986,7 +2986,7 @@ module \$_DLATCH_NP0_ (E, R, D, Q);
input E, R, D;
output reg Q;
always @* begin
- if (R == 0)
+ if (R == 1)
Q <= 0;
else if (E == 0)
Q <= D;
@@ -3009,7 +3009,7 @@ module \$_DLATCH_NP1_ (E, R, D, Q);
input E, R, D;
output reg Q;
always @* begin
- if (R == 0)
+ if (R == 1)
Q <= 1;
else if (E == 0)
Q <= D;
@@ -3032,7 +3032,7 @@ module \$_DLATCH_PN0_ (E, R, D, Q);
input E, R, D;
output reg Q;
always @* begin
- if (R == 1)
+ if (R == 0)
Q <= 0;
else if (E == 1)
Q <= D;
@@ -3055,7 +3055,7 @@ module \$_DLATCH_PN1_ (E, R, D, Q);
input E, R, D;
output reg Q;
always @* begin
- if (R == 1)
+ if (R == 0)
Q <= 1;
else if (E == 1)
Q <= D;
diff --git a/tests/various/const_func.v b/tests/various/const_func.v
new file mode 100644
index 000000000..76cdc385d
--- /dev/null
+++ b/tests/various/const_func.v
@@ -0,0 +1,75 @@
+module Example(outA, outB, outC, outD);
+ parameter OUTPUT = "FOO";
+ output wire [23:0] outA;
+ output wire [23:0] outB;
+ output reg outC, outD;
+ function automatic [23:0] flip;
+ input [23:0] inp;
+ flip = ~inp;
+ endfunction
+
+ generate
+ if (flip(OUTPUT) == flip("BAR"))
+ assign outA = OUTPUT;
+ else
+ assign outA = 0;
+
+ case (flip(OUTPUT))
+ flip("FOO"): assign outB = OUTPUT;
+ flip("BAR"): assign outB = 0;
+ flip("BAZ"): assign outB = "HI";
+ endcase
+
+ genvar i;
+ initial outC = 0;
+ for (i = 0; i != flip(flip(OUTPUT[15:8])); i = i + 1)
+ if (i + 1 == flip(flip("O")))
+ initial outC = 1;
+ endgenerate
+
+ integer j;
+ initial begin
+ outD = 1;
+ for (j = 0; j != flip(flip(OUTPUT[15:8])); j = j + 1)
+ if (j + 1 == flip(flip("O")))
+ outD = 0;
+ end
+endmodule
+
+module top(out);
+ wire [23:0] a1, a2, a3, a4;
+ wire [23:0] b1, b2, b3, b4;
+ wire c1, c2, c3, c4;
+ wire d1, d2, d3, d4;
+ Example e1(a1, b1, c1, d1);
+ Example #("FOO") e2(a2, b2, c2, d2);
+ Example #("BAR") e3(a3, b3, c3, d3);
+ Example #("BAZ") e4(a4, b4, c4, d4);
+
+ output wire [24 * 8 - 1 + 4 :0] out;
+ assign out = {
+ a1, a2, a3, a4,
+ b1, b2, b3, b4,
+ c1, c2, c3, c4,
+ d1, d2, d3, d4};
+
+// `define VERIFY
+`ifdef VERIFY
+ assert property (a1 == 0);
+ assert property (a2 == 0);
+ assert property (a3 == "BAR");
+ assert property (a4 == 0);
+ assert property (b1 == "FOO");
+ assert property (b2 == "FOO");
+ assert property (b3 == 0);
+ assert property (b4 == "HI");
+ assert property (c1 == 1);
+ assert property (c2 == 1);
+ assert property (c3 == 0);
+ assert property (c4 == 0);
+ assert property (d1 == 0);
+ assert property (d2 == 0);
+ assert property (d3 == 1);
+ assert property (d4 == 1);
+`endif
+endmodule
diff --git a/tests/various/const_func.ys b/tests/various/const_func.ys
new file mode 100644
index 000000000..5e3c04105
--- /dev/null
+++ b/tests/various/const_func.ys
@@ -0,0 +1 @@
+read_verilog const_func.v
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 06:07:57 +0000