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Update Const API with alternatives to direct use of bits()

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In particular, `Const::resize()`, `Const::set()`, and `Const::iterator`.
This commit is contained in:
Robert O'Callahan 2025-08-28 01:54:41 +00:00
parent 8bae779bb8
commit e151fbc5df
2 changed files with 131 additions and 4 deletions
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54
tests/unit/kernel/rtlilTest.cc
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@ -114,6 +114,60 @@ namespace RTLIL {
EXPECT_EQ(*it++, State::S0);
}
TEST_F(KernelRtlilTest, ConstIteratorWorks) {
Const c(0x2, 2);
Const::iterator it = c.begin();
ASSERT_NE(it, c.end());
EXPECT_EQ(*it, State::S0);
++it;
ASSERT_NE(it, c.end());
EXPECT_EQ(*it, State::S1);
++it;
ASSERT_EQ(it, c.end());
}
TEST_F(KernelRtlilTest, ConstIteratorPreincrement) {
Const c(0x2, 2);
Const::iterator it = c.begin();
EXPECT_EQ(*++it, State::S1);
}
TEST_F(KernelRtlilTest, ConstIteratorPostincrement) {
Const c(0x2, 2);
Const::iterator it = c.begin();
EXPECT_EQ(*it++, State::S0);
}
TEST_F(KernelRtlilTest, ConstIteratorWriteWorks) {
Const c(0x2, 2);
Const::iterator it = c.begin();
EXPECT_EQ(*it, State::S0);
*it = State::S1;
EXPECT_EQ(*it, State::S1);
}
TEST_F(KernelRtlilTest, ConstBuilder) {
Const::Builder b;
EXPECT_EQ(GetSize(b), 0);
b.push_back(S0);
EXPECT_EQ(GetSize(b), 1);
b.push_back(S1);
EXPECT_EQ(GetSize(b), 2);
EXPECT_EQ(b.build(), Const(0x2, 2));
}
TEST_F(KernelRtlilTest, ConstSet) {
Const c(0x2, 2);
c.set(0, S1);
EXPECT_EQ(c, Const(0x3, 2));
}
TEST_F(KernelRtlilTest, ConstResize) {
Const c(0x2, 2);
c.resize(4, S1);
EXPECT_EQ(c, Const(0xe, 4));
}
class WireRtlVsHdlIndexConversionTest :
public KernelRtlilTest,
public testing::WithParamInterface<std::tuple<bool, int, int>>