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test_cell: Support more cell types

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Still unsupported:
- x-prop cells ($eqx, $nex, $bweqx)
- wide muxes (`$_MUX16_` and friends)
- $pmux

Partially supported:
- $bwmux is not supported in `ConstEval::eval()`, works with `-noeval`
- $buf has no mapping in techmap.v so is unusable with `techmap -assert` (i.e. the default)
- $pow has `_TECHMAP_FAIL_` in techmap.v, `-simlib` works for some iterations but fails for others, `-aigmap` works fine

Fix `CellTypes::eval() for `$_NMUX_`.
Fix `RTLIL::Cell::fixup_parameters()` for $concat and $bwmux.
This commit is contained in:
Krystine Sherwin 2025-03-31 16:24:40 +13:00
parent 833721bfc4
commit 1a3f6c9d50
No known key found for this signature in database
3 changed files with 140 additions and 14 deletions
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2
kernel/celltypes.h
View file

@ -589,6 +589,8 @@ struct CellTypes
{
if (cell->type.in(ID($mux), ID($_MUX_)))
return const_mux(arg1, arg2, arg3);
if (cell->type == ID($_NMUX_))
return eval_not(const_mux(arg1, arg2, arg3));
if (cell->type == ID($bwmux))
return const_bwmux(arg1, arg2, arg3);
if (cell->type == ID($pmux))

6
kernel/rtlil.cc
View file

@ -4063,9 +4063,9 @@ void RTLIL::Cell::fixup_parameters(bool set_a_signed, bool set_b_signed)
type.begins_with("$verific$") || type.begins_with("$array:") || type.begins_with("$extern:"))
return;
if (type == ID($buf) || type == ID($mux) || type == ID($pmux) || type == ID($bmux)) {
if (type == ID($buf) || type == ID($mux) || type == ID($pmux) || type == ID($bmux) || type == ID($bwmux)) {
parameters[ID::WIDTH] = GetSize(connections_[ID::Y]);
if (type != ID($buf) && type != ID($mux))
if (type.in(ID($pmux), ID($bmux)))
parameters[ID::S_WIDTH] = GetSize(connections_[ID::S]);
check();
return;
@ -4115,7 +4115,7 @@ void RTLIL::Cell::fixup_parameters(bool set_a_signed, bool set_b_signed)
parameters[ID::B_WIDTH] = GetSize(connections_[ID::B]);
}
if (connections_.count(ID::Y))
if (connections_.count(ID::Y) && type != ID($concat))
parameters[ID::Y_WIDTH] = GetSize(connections_[ID::Y]);
if (connections_.count(ID::Q))