diff options
Diffstat (limited to 'lldb/unittests/Core/ScalarTest.cpp')
| -rw-r--r-- | lldb/unittests/Core/ScalarTest.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/lldb/unittests/Core/ScalarTest.cpp b/lldb/unittests/Core/ScalarTest.cpp index 2a5643fee1a..bf85f8e9623 100644 --- a/lldb/unittests/Core/ScalarTest.cpp +++ b/lldb/unittests/Core/ScalarTest.cpp @@ -79,3 +79,27 @@ TEST(ScalarTest, CastOperations) ASSERT_EQ((unsigned long long)a, a_scalar.ULongLong()); } +TEST(ScalarTest, ExtractBitfield) +{ + uint32_t len = sizeof(long long) * 8; + + long long a1 = 0xf1f2f3f4f5f6f7f8LL; + long long b1 = 0xff1f2f3f4f5f6f7fLL; + Scalar s_scalar(a1); + ASSERT_TRUE(s_scalar.ExtractBitfield(0, 0)); + ASSERT_EQ(0, memcmp(&a1, s_scalar.GetBytes(), sizeof(a1))); + ASSERT_TRUE(s_scalar.ExtractBitfield(len, 0)); + ASSERT_EQ(0, memcmp(&a1, s_scalar.GetBytes(), sizeof(a1))); + ASSERT_TRUE(s_scalar.ExtractBitfield(len - 4, 4)); + ASSERT_EQ(0, memcmp(&b1, s_scalar.GetBytes(), sizeof(b1))); + + unsigned long long a2 = 0xf1f2f3f4f5f6f7f8ULL; + unsigned long long b2 = 0x0f1f2f3f4f5f6f7fULL; + Scalar u_scalar(a2); + ASSERT_TRUE(u_scalar.ExtractBitfield(0, 0)); + ASSERT_EQ(0, memcmp(&a2, u_scalar.GetBytes(), sizeof(a2))); + ASSERT_TRUE(u_scalar.ExtractBitfield(len, 0)); + ASSERT_EQ(0, memcmp(&a2, u_scalar.GetBytes(), sizeof(a2))); + ASSERT_TRUE(u_scalar.ExtractBitfield(len - 4, 4)); + ASSERT_EQ(0, memcmp(&b2, u_scalar.GetBytes(), sizeof(b2))); +} |
