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Merge pull request #4497 from YosysHQ/emil/bitpattern-comments

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bitpattern: comments
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Emil J 2025-08-25 15:25:37 +02:00 • committed by GitHub
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tests/unit/kernel/bitpatternTest.cc Normal file
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#include <gtest/gtest.h>
#include "kernel/bitpattern.h"
#include "kernel/rtlil.h"
YOSYS_NAMESPACE_BEGIN
TEST(BitpatternTest, has)
{
SigSpec _aaa = {RTLIL::Sa, RTLIL::Sa, RTLIL::Sa};
SigSpec _01a = {RTLIL::S0, RTLIL::S1, RTLIL::Sa};
SigSpec _011 = {RTLIL::S0, RTLIL::S1, RTLIL::S1};
SigSpec _111 = {RTLIL::S1, RTLIL::S1, RTLIL::S1};
EXPECT_TRUE(BitPatternPool(_aaa).has_any(_01a));
EXPECT_TRUE(BitPatternPool(_01a).has_any(_01a));
// 011 overlaps with 01a
EXPECT_TRUE(BitPatternPool(_011).has_any(_01a));
// overlap is symmetric
EXPECT_TRUE(BitPatternPool(_01a).has_any(_011));
EXPECT_FALSE(BitPatternPool(_111).has_any(_01a));
EXPECT_TRUE(BitPatternPool(_aaa).has_all(_01a));
EXPECT_TRUE(BitPatternPool(_01a).has_all(_01a));
// 011 is covered by 01a
EXPECT_TRUE(BitPatternPool(_01a).has_all(_011));
// 01a is not covered by 011
EXPECT_FALSE(BitPatternPool(_011).has_all(_01a));
EXPECT_FALSE(BitPatternPool(_111).has_all(_01a));
}
YOSYS_NAMESPACE_END