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| author | Xiang1 Zhang <xiang1.zhang@intel.com> | 2022-07-01 09:05:36 +0800 |
|---|---|---|
| committer | Xiang1 Zhang <xiang1.zhang@intel.com> | 2022-07-01 09:09:43 +0800 |
| commit | 72a23cef7e661997118a1c4876c814cfd05d72e4 (patch) | |
| tree | 9127ff30cd1b550821aa903b12f81d149372197c /llvm/unittests/ADT/APIntTest.cpp | |
| parent | 64f44a90efb70dd5853e870a6f2c38e2f47ff890 (diff) | |
| download | llvm-72a23cef7e661997118a1c4876c814cfd05d72e4.zip llvm-72a23cef7e661997118a1c4876c814cfd05d72e4.tar.gz llvm-72a23cef7e661997118a1c4876c814cfd05d72e4.tar.bz2 | |
[ISel] Match all bits when merge undefs for DAG combine
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D128570
Diffstat (limited to 'llvm/unittests/ADT/APIntTest.cpp')
| -rw-r--r-- | llvm/unittests/ADT/APIntTest.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/unittests/ADT/APIntTest.cpp b/llvm/unittests/ADT/APIntTest.cpp index e92754c..0af294c 100644 --- a/llvm/unittests/ADT/APIntTest.cpp +++ b/llvm/unittests/ADT/APIntTest.cpp @@ -3115,6 +3115,15 @@ TEST(APIntTest, ScaleBitMask) { APInt::getAllOnes(256)); EXPECT_EQ(APIntOps::ScaleBitMask(APInt::getOneBitSet(4096, 32), 256), APInt::getOneBitSet(256, 2)); + + EXPECT_EQ(APIntOps::ScaleBitMask(APInt(2, 0x00), 8, true), APInt(8, 0x00)); + EXPECT_EQ(APIntOps::ScaleBitMask(APInt(2, 0x01), 8, true), APInt(8, 0x0F)); + EXPECT_EQ(APIntOps::ScaleBitMask(APInt(2, 0x02), 8, true), APInt(8, 0xF0)); + EXPECT_EQ(APIntOps::ScaleBitMask(APInt(2, 0x03), 8, true), APInt(8, 0xFF)); + + EXPECT_EQ(APIntOps::ScaleBitMask(APInt(8, 0x00), 4, true), APInt(4, 0x00)); + EXPECT_EQ(APIntOps::ScaleBitMask(APInt(8, 0xFF), 4, true), APInt(4, 0x0F)); + EXPECT_EQ(APIntOps::ScaleBitMask(APInt(8, 0xE4), 4, true), APInt(4, 0x08)); } } // end anonymous namespace |