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7 Commits
d36b0abae5 ... 04a087ece5

Author SHA1 Message Date
Larry Doolittle 04a087ece5
Merge 3ae9ca7c2b into 29e8812bab 2024-11-25 22:09:23 +08:00
Miodrag Milanović 29e8812bab
Merge pull request #4724 from YosysHQ/micko/blackbox_verific 
verific: fix blackbox regression and add test case
 2024-11-25 15:06:54 +01:00
Miodrag Milanović 9512ec4bbc
Merge pull request #4764 from YosysHQ/micko/verific_vhdl_assert 
verific : VHDL assert DFF initial value set on Verific library patch
 2024-11-25 15:06:36 +01:00
Miodrag Milanovic d6bd521487 verific : VHDL assert DFF initial value set on Verific library patch side 2024-11-21 13:43:26 +01:00
Larry Doolittle 3ae9ca7c2b drivertools.h: switch from log_assert(0) to log_abort() for new feature 2024-11-08 10:30:11 -08:00
Miodrag Milanovic df391f5816 verific: fix blackbox regression and add test case 2024-11-08 14:57:04 +01:00
Larry Doolittle d36a387aca kernel/drivertools.h: avoid maybe-uninitialized compile warnings 
Initialize "unsigned int inner" in hash() functions
Includes a log_assert() that might help catch corrupted data structures
or future incomplete modification of DriveType definition
 2024-11-07 19:49:25 -08:00
3 changed files with 33 additions and 8 deletions
Show Stats Expand all files Collapse all files

7
frontends/verific/verific.cc
View File

@ -2126,12 +2126,6 @@ void VerificImporter::import_netlist(RTLIL::Design *design, Netlist *nl, std::ma
log(" assert condition %s.\n", log_signal(cond));
Cell *cell = module->addAssert(new_verific_id(inst), cond, State::S1);
// Initialize FF feeding condition to 1, in case it is not
// used by rest of design logic, to prevent failing on
// initial uninitialized state
if (cond.is_wire() && !cond.wire->name.isPublic())
cond.wire->attributes[ID::init] = Const(1,1);
import_attributes(cell->attributes, inst);
continue;
}
@ -3428,6 +3422,7 @@ struct VerificPass : public Pass {
RuntimeFlags::SetVar("veri_preserve_assignments", 1);
RuntimeFlags::SetVar("veri_preserve_comments", 1);
RuntimeFlags::SetVar("veri_preserve_drivers", 1);
RuntimeFlags::SetVar("veri_create_empty_box", 1);
// Workaround for VIPER #13851
RuntimeFlags::SetVar("veri_create_name_for_unnamed_gen_block", 1);

10
kernel/drivertools.h
View File

@ -364,7 +364,7 @@ public:
unsigned int hash() const
{
unsigned int inner;
unsigned int inner = 0;
switch (type_)
{
case DriveType::NONE:
@ -385,6 +385,9 @@ public:
case DriveType::MULTIPLE:
inner = multiple_.hash();
break;
default:
log_abort();
break;
}
return mkhash((unsigned int)type_, inner);
}
@ -912,7 +915,7 @@ public:
unsigned int hash() const
{
unsigned int inner;
unsigned int inner = 0;
switch (type_)
{
case DriveType::NONE:
@ -933,6 +936,9 @@ public:
case DriveType::MULTIPLE:
inner = multiple_.hash();
break;
default:
log_abort();
break;
}
return mkhash((unsigned int)type_, inner);
}

24
tests/verific/blackbox.ys Normal file
View File

@ -0,0 +1,24 @@
verific -sv -lib <<EOF
module TEST_CELL(input clk, input a, input b, output reg c);
parameter PATH = "DEFAULT";
always @(posedge clk) begin
if (PATH=="DEFAULT")
c <= a;
else
c <= b;
end
endmodule
EOF
verific -sv <<EOF
module top(input clk, input a, input b, output c, output d);
TEST_CELL #(.PATH("TEST")) test1(.clk(clk),.a(a),.b(1'b1),.c(c));
TEST_CELL #(.PATH("DEFAULT")) test2(.clk(clk),.a(a),.b(1'bx),.c(d));
endmodule
EOF
verific -import top
hierarchy -top top
stat
select -assert-count 2 t:TEST_CELL