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Make Const::is_*() functions work on packed bits without decaying to vector<State>

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This commit is contained in:
Robert O'Callahan 2025-08-29 04:50:35 +00:00
parent 9c96e61e9b
commit a515055be4
2 changed files with 120 additions and 15 deletions
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91
tests/unit/kernel/rtlilTest.cc
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@ -157,6 +157,50 @@ namespace RTLIL {
Const c(v);
EXPECT_EQ(c.decode_string(), " ");
}
{
Const c(" ");
EXPECT_TRUE(c.is_str());
EXPECT_FALSE(c.is_fully_zero());
EXPECT_TRUE(c.is_str());
}
{
Const c(" ");
EXPECT_TRUE(c.is_str());
EXPECT_FALSE(c.is_fully_ones());
EXPECT_TRUE(c.is_str());
}
{
Const c(" ");
EXPECT_TRUE(c.is_str());
EXPECT_TRUE(c.is_fully_def());
EXPECT_TRUE(c.is_str());
}
{
Const c(" ");
EXPECT_TRUE(c.is_str());
EXPECT_FALSE(c.is_fully_undef());
EXPECT_TRUE(c.is_str());
}
{
Const c(" ");
EXPECT_TRUE(c.is_str());
EXPECT_FALSE(c.is_fully_undef_x_only());
EXPECT_TRUE(c.is_str());
}
{
Const c(" ");
EXPECT_TRUE(c.is_str());
int pos;
EXPECT_TRUE(c.is_onehot(&pos));
EXPECT_EQ(pos, 5);
EXPECT_TRUE(c.is_str());
}
}
TEST_F(KernelRtlilTest, ConstConstIteratorWorks) {
@ -267,6 +311,53 @@ namespace RTLIL {
EXPECT_NE(hash(Const(v1)), hash(Const("a")));
}
TEST_F(KernelRtlilTest, ConstIsFullyZero) {
EXPECT_TRUE(Const(0, 8).is_fully_zero());
EXPECT_FALSE(Const(8, 8).is_fully_zero());
EXPECT_TRUE(Const().is_fully_zero());
}
TEST_F(KernelRtlilTest, ConstIsFullyOnes) {
EXPECT_TRUE(Const(0xf, 4).is_fully_ones());
EXPECT_FALSE(Const(3, 4).is_fully_ones());
EXPECT_TRUE(Const().is_fully_ones());
}
TEST_F(KernelRtlilTest, ConstIsFullyDef) {
EXPECT_TRUE(Const(0xf, 4).is_fully_def());
std::vector<State> v1 = {S0, Sx};
EXPECT_FALSE(Const(v1).is_fully_def());
EXPECT_TRUE(Const().is_fully_def());
}
TEST_F(KernelRtlilTest, ConstIsFullyUndef) {
std::vector<State> v1 = {S0, Sx};
EXPECT_FALSE(Const(v1).is_fully_undef());
EXPECT_TRUE(Const(Sz, 2).is_fully_undef());
EXPECT_TRUE(Const().is_fully_undef());
}
TEST_F(KernelRtlilTest, ConstIsFullyUndefXOnly) {
std::vector<State> v1 = {Sx, Sz};
EXPECT_FALSE(Const(v1).is_fully_undef_x_only());
EXPECT_TRUE(Const(Sx, 2).is_fully_undef_x_only());
EXPECT_TRUE(Const().is_fully_undef_x_only());
}
TEST_F(KernelRtlilTest, ConstIsOnehot) {
int pos;
EXPECT_TRUE(Const(0x80, 8).is_onehot(&pos));
EXPECT_EQ(pos, 7);
EXPECT_FALSE(Const(0x82, 8).is_onehot(&pos));
EXPECT_FALSE(Const(0, 8).is_onehot(&pos));
EXPECT_TRUE(Const(1, 1).is_onehot(&pos));
EXPECT_EQ(pos, 0);
EXPECT_FALSE(Const(Sx, 1).is_onehot(&pos));
std::vector<State> v1 = {Sx, S1};
EXPECT_FALSE(Const(v1).is_onehot(&pos));
EXPECT_FALSE(Const().is_onehot(&pos));
}
class WireRtlVsHdlIndexConversionTest :
public KernelRtlilTest,
public testing::WithParamInterface<std::tuple<bool, int, int>>