diff options
Diffstat (limited to 'unittests/ADT/APIntTest.cpp')
| -rw-r--r-- | unittests/ADT/APIntTest.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/unittests/ADT/APIntTest.cpp b/unittests/ADT/APIntTest.cpp index 2195007f25..d5d2bc175f 100644 --- a/unittests/ADT/APIntTest.cpp +++ b/unittests/ADT/APIntTest.cpp @@ -144,6 +144,12 @@ TEST(APIntTest, i1) { EXPECT_EQ(zero, one.lshr(1)); EXPECT_EQ(zero, one.ashr(1)); + // Rotates. + EXPECT_EQ(one, one.rotl(0)); + EXPECT_EQ(one, one.rotl(1)); + EXPECT_EQ(one, one.rotr(0)); + EXPECT_EQ(one, one.rotr(1)); + // Multiplies. EXPECT_EQ(neg_one, neg_one * one); EXPECT_EQ(neg_one, one * neg_one); @@ -450,4 +456,30 @@ TEST(APIntTest, mul_clear) { EXPECT_EQ(ValA.toString(10, false), ValC.toString(10, false)); } +TEST(APIntTest, Rotate) { + EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(0)); + EXPECT_EQ(APInt(8, 2), APInt(8, 1).rotl(1)); + EXPECT_EQ(APInt(8, 4), APInt(8, 1).rotl(2)); + EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotl(4)); + EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(8)); + + EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(0)); + EXPECT_EQ(APInt(8, 32), APInt(8, 16).rotl(1)); + EXPECT_EQ(APInt(8, 64), APInt(8, 16).rotl(2)); + EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotl(4)); + EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(8)); + + EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(0)); + EXPECT_EQ(APInt(8, 8), APInt(8, 16).rotr(1)); + EXPECT_EQ(APInt(8, 4), APInt(8, 16).rotr(2)); + EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotr(4)); + EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(8)); + + EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(0)); + EXPECT_EQ(APInt(8, 128), APInt(8, 1).rotr(1)); + 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)); +} + } |