diff options
Diffstat (limited to 'llvm/unittests/Support/KnownBitsTest.cpp')
| -rw-r--r-- | llvm/unittests/Support/KnownBitsTest.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/unittests/Support/KnownBitsTest.cpp b/llvm/unittests/Support/KnownBitsTest.cpp index 658f379..7c183e9 100644 --- a/llvm/unittests/Support/KnownBitsTest.cpp +++ b/llvm/unittests/Support/KnownBitsTest.cpp @@ -518,6 +518,19 @@ TEST(KnownBitsTest, BinaryExhaustive) { checkOptimalityBinary, /* RefinePoisonToZero */ true); testBinaryOpExhaustive( [](const KnownBits &Known1, const KnownBits &Known2) { + return KnownBits::lshr(Known1, Known2, /*ShAmtNonZero=*/false, + /*Exact=*/true); + }, + [](const APInt &N1, const APInt &N2) -> std::optional<APInt> { + if (N2.uge(N2.getBitWidth())) + return std::nullopt; + if (!N1.extractBits(N2.getZExtValue(), 0).isZero()) + return std::nullopt; + return N1.lshr(N2); + }, + checkOptimalityBinary, /* RefinePoisonToZero */ true); + testBinaryOpExhaustive( + [](const KnownBits &Known1, const KnownBits &Known2) { return KnownBits::ashr(Known1, Known2); }, [](const APInt &N1, const APInt &N2) -> std::optional<APInt> { @@ -526,6 +539,19 @@ TEST(KnownBitsTest, BinaryExhaustive) { return N1.ashr(N2); }, checkOptimalityBinary, /* RefinePoisonToZero */ true); + testBinaryOpExhaustive( + [](const KnownBits &Known1, const KnownBits &Known2) { + return KnownBits::ashr(Known1, Known2, /*ShAmtNonZero=*/false, + /*Exact=*/true); + }, + [](const APInt &N1, const APInt &N2) -> std::optional<APInt> { + if (N2.uge(N2.getBitWidth())) + return std::nullopt; + if (!N1.extractBits(N2.getZExtValue(), 0).isZero()) + return std::nullopt; + return N1.ashr(N2); + }, + checkOptimalityBinary, /* RefinePoisonToZero */ true); testBinaryOpExhaustive( [](const KnownBits &Known1, const KnownBits &Known2) { |