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#include <gtest/gtest.h>
#include "kernel/rtlil.h"
YOSYS_NAMESPACE_BEGIN
namespace RTLIL {
struct SafePrintToStringParamName {
template <class ParamType>
std::string operator()(const testing::TestParamInfo<ParamType>& info) const {
std::string name = testing::PrintToString(info.param);
for (auto &c : name)
if (!('0' <= c && c <= '9') && !('a' <= c && c <= 'z') && !('A' <= c && c <= 'Z') ) c = '_';
return name;
}
};
class KernelRtlilTest : public testing::Test {
protected:
KernelRtlilTest() {
if (log_files.empty()) log_files.emplace_back(stdout);
}
};
TEST_F(KernelRtlilTest, ConstAssignCompare)
{
Const c1;
Const c2;
c2 = c1;
Const c3(c2);
EXPECT_TRUE(c2 == c3);
EXPECT_FALSE(c2 < c3);
}
TEST_F(KernelRtlilTest, ConstStr) {
// We have multiple distinct sections since it's annoying
// to list multiple testcases as friends of Const in kernel/rtlil.h
{
std::string foo = "foo";
Const c1 = foo;
Const c2;
c2 = c1;
Const c3(c2);
EXPECT_TRUE(c1.is_str());
EXPECT_TRUE(c2.is_str());
EXPECT_TRUE(c3.is_str());
}
{
// A binary constant is bitvec backed
Const cb1(0, 10);
Const cb2(1, 10);
Const cb3(cb2);
std::vector<bool> v1 {false, true};
std::vector<State> v2 {State::S0, State::S1};
Const cb4(v1);
Const cb5(v2);
EXPECT_TRUE(cb4 == cb5);
EXPECT_TRUE(cb1.is_bits());
EXPECT_TRUE(cb2.is_bits());
EXPECT_TRUE(cb3.is_bits());
EXPECT_TRUE(cb4.is_bits());
EXPECT_TRUE(cb5.is_bits());
EXPECT_EQ(cb1.size(), 10);
EXPECT_EQ(cb2.size(), 10);
EXPECT_EQ(cb3.size(), 10);
}
{
// A string constructed Const starts off packed
std::string foo = "foo";
Const cs1 = foo;
EXPECT_TRUE(cs1.is_str());
// It can be iterated without mutating
int i = 0;
for (auto bit : cs1) {
i += bit;
}
EXPECT_EQ(i, 16);
EXPECT_TRUE(cs1.is_str());
// It can be mutated with the bits() view
// and decays into unpacked
for (auto& bit : cs1.bits()) {
bit = State::Sx;
}
EXPECT_TRUE(cs1.is_bits());
}
}
class WireRtlVsHdlIndexConversionTest :
public KernelRtlilTest,
public testing::WithParamInterface<std::tuple<bool, int, int>>
{};
INSTANTIATE_TEST_SUITE_P(
WireRtlVsHdlIndexConversionInstance,
WireRtlVsHdlIndexConversionTest,
testing::Values(
std::make_tuple(false, 0, 10),
std::make_tuple(true, 0, 10),
std::make_tuple(false, 4, 10),
std::make_tuple(true, 4, 10),
std::make_tuple(false, -4, 10),
std::make_tuple(true, -4, 10),
std::make_tuple(false, 0, 1),
std::make_tuple(true, 0, 1),
std::make_tuple(false, 4, 1),
std::make_tuple(true, 4, 1),
std::make_tuple(false, -4, 1),
std::make_tuple(true, -4, 1)
),
SafePrintToStringParamName()
);
TEST_P(WireRtlVsHdlIndexConversionTest, WireRtlVsHdlIndexConversion) {
std::unique_ptr<Module> mod = std::make_unique<Module>();
Wire *wire = mod->addWire(ID(test), 10);
auto [upto, start_offset, width] = GetParam();
wire->upto = upto;
wire->start_offset = start_offset;
wire->width = width;
int smallest = INT_MAX;
int largest = INT_MIN;
for (int i = 0; i < wire->width; i++) {
int j = wire->to_hdl_index(i);
smallest = std::min(smallest, j);
largest = std::max(largest, j);
EXPECT_EQ(
std::make_pair(wire->from_hdl_index(j), j),
std::make_pair(i, wire->to_hdl_index(i))
);
}
EXPECT_EQ(smallest, start_offset);
EXPECT_EQ(largest, start_offset + wire->width - 1);
for (int i = 1; i < wire->width; i++) {
EXPECT_EQ(
wire->to_hdl_index(i) - wire->to_hdl_index(i - 1),
upto ? -1 : 1
);
}
for (int j = smallest; j < largest; j++) {
int i = wire->from_hdl_index(j);
EXPECT_EQ(
std::make_pair(wire->from_hdl_index(j), j),
std::make_pair(i, wire->to_hdl_index(i))
);
}
for (int i = -10; i < 0; i++)
EXPECT_EQ(wire->to_hdl_index(i), INT_MIN);
for (int i = wire->width; i < wire->width + 10; i++)
EXPECT_EQ(wire->to_hdl_index(i), INT_MIN);
for (int j = smallest - 10; j < smallest; j++)
EXPECT_EQ(wire->from_hdl_index(j), INT_MIN);
for (int j = largest + 1; j < largest + 11; j++)
EXPECT_EQ(wire->from_hdl_index(j), INT_MIN);
}
}
YOSYS_NAMESPACE_END
|
