diff options
Diffstat (limited to 'llvm/unittests/ADT/APIntTest.cpp')
| -rw-r--r-- | llvm/unittests/ADT/APIntTest.cpp | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/llvm/unittests/ADT/APIntTest.cpp b/llvm/unittests/ADT/APIntTest.cpp index f5f6594b836..64560669342 100644 --- a/llvm/unittests/ADT/APIntTest.cpp +++ b/llvm/unittests/ADT/APIntTest.cpp @@ -1263,8 +1263,21 @@ TEST(APIntTest, StringBitsNeeded10) { EXPECT_EQ(6U, APInt::getBitsNeeded("-19", 10)); EXPECT_EQ(6U, APInt::getBitsNeeded("-20", 10)); - // TODO: INT_MIN cases need 1 less bit (PR40897) - EXPECT_EQ(9U, APInt::getBitsNeeded("-128", 10)); + EXPECT_EQ(1U, APInt::getBitsNeeded("-1", 10)); + EXPECT_EQ(2U, APInt::getBitsNeeded("-2", 10)); + EXPECT_EQ(3U, APInt::getBitsNeeded("-4", 10)); + EXPECT_EQ(4U, APInt::getBitsNeeded("-8", 10)); + EXPECT_EQ(5U, APInt::getBitsNeeded("-16", 10)); + EXPECT_EQ(6U, APInt::getBitsNeeded("-23", 10)); + EXPECT_EQ(6U, APInt::getBitsNeeded("-32", 10)); + EXPECT_EQ(7U, APInt::getBitsNeeded("-64", 10)); + EXPECT_EQ(8U, APInt::getBitsNeeded("-127", 10)); + EXPECT_EQ(8U, APInt::getBitsNeeded("-128", 10)); + EXPECT_EQ(9U, APInt::getBitsNeeded("-255", 10)); + EXPECT_EQ(9U, APInt::getBitsNeeded("-256", 10)); + EXPECT_EQ(10U, APInt::getBitsNeeded("-512", 10)); + EXPECT_EQ(11U, APInt::getBitsNeeded("-1024", 10)); + EXPECT_EQ(12U, APInt::getBitsNeeded("-1025", 10)); } TEST(APIntTest, StringBitsNeeded16) { |
