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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2012-02-07 16:27:39 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2012-02-07 16:27:39 +0000 |
| commit | 0ae29a6b37204d95761a859d647f3e13a415c2d2 (patch) | |
| tree | 059214b5b952824d0ab9028f35ab75238c60e5aa /unittests | |
| parent | b0b527b62cdcbe6e1a5947534fd749b310856a17 (diff) | |
| download | llvm-0ae29a6b37204d95761a859d647f3e13a415c2d2.tar.gz llvm-0ae29a6b37204d95761a859d647f3e13a415c2d2.tar.bz2 llvm-0ae29a6b37204d95761a859d647f3e13a415c2d2.tar.xz | |
Add a unittest for rotating a really big APInt.
Clang miscompiles it under certain circumstances, and it's a good exercise for APInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149986 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/ADT/APIntTest.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/unittests/ADT/APIntTest.cpp b/unittests/ADT/APIntTest.cpp index d5d2bc175f..89b8aa94e4 100644 --- a/unittests/ADT/APIntTest.cpp +++ b/unittests/ADT/APIntTest.cpp @@ -480,6 +480,10 @@ TEST(APIntTest, Rotate) { EXPECT_EQ(APInt(8, 64), APInt(8, 1).rotr(2)); EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotr(4)); EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(8)); + + APInt Big(256, "00004000800000000000000000003fff8000000000000000", 16); + APInt Rot(256, "3fff80000000000000000000000000000000000040008000", 16); + EXPECT_EQ(Rot, Big.rotr(144)); } } |