[llvm] [mlir] mlir/MathExtras: consolidate with llvm/MathExtras (PR #95087)

[Nikita Popov via llvm-commits]

================
@@ -434,8 +434,25 @@ TEST(MathExtras, IsShiftedInt) {
   EXPECT_FALSE((isShiftedInt<6, 10>(int64_t(1) << 15)));
 }
 
-template <typename T>
-class OverflowTest : public ::testing::Test { };
+TEST(MathExtras, DivideCeilSigned) {
+  EXPECT_EQ(divideCeilSigned(14, 3), 5);
+  EXPECT_EQ(divideCeilSigned(14, -3), -4);
+  EXPECT_EQ(divideCeilSigned(-14, -3), 5);
+  EXPECT_EQ(divideCeilSigned(-14, 3), -4);
+  EXPECT_EQ(divideCeilSigned(0, 3), 0);
+  EXPECT_EQ(divideCeilSigned(0, -3), 0);
+}
+
+TEST(MathExtras, DivideFloorSigned) {
+  EXPECT_EQ(divideFloorSigned(14, 3), 4);
+  EXPECT_EQ(divideFloorSigned(14, -3), -5);
+  EXPECT_EQ(divideFloorSigned(-14, -3), 4);
+  EXPECT_EQ(divideFloorSigned(-14, 3), -5);
+  EXPECT_EQ(divideFloorSigned(0, 3), 0);
+  EXPECT_EQ(divideFloorSigned(0, -3), 0);
+}
----------------
nikic wrote:

Missing tests for mod()?

https://github.com/llvm/llvm-project/pull/95087