diff options
Diffstat (limited to 'unittests/VMCore')
| -rw-r--r-- | unittests/VMCore/ConstantsTest.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/unittests/VMCore/ConstantsTest.cpp b/unittests/VMCore/ConstantsTest.cpp index c40dc7e471..519d928eac 100644 --- a/unittests/VMCore/ConstantsTest.cpp +++ b/unittests/VMCore/ConstantsTest.cpp @@ -19,6 +19,7 @@ TEST(ConstantsTest, Integer_i1) { Constant* One = ConstantInt::get(Int1, 1, true); Constant* Zero = ConstantInt::get(Int1, 0); Constant* NegOne = ConstantInt::get(Int1, static_cast<uint64_t>(-1), true); + EXPECT_EQ(NegOne, ConstantInt::getSigned(Int1, -1)); Constant* Undef = UndefValue::get(Int1); // Input: @b = constant i1 add(i1 1 , i1 1) @@ -94,5 +95,18 @@ TEST(ConstantsTest, Integer_i1) { EXPECT_EQ(Zero, ConstantExpr::getSRem(One, NegOne)); } +TEST(ConstantsTest, IntSigns) { + const IntegerType* Int8Ty = Type::Int8Ty; + EXPECT_EQ(100, ConstantInt::get(Int8Ty, 100, false)->getSExtValue()); + EXPECT_EQ(100, ConstantInt::get(Int8Ty, 100, true)->getSExtValue()); + EXPECT_EQ(100, ConstantInt::getSigned(Int8Ty, 100)->getSExtValue()); + EXPECT_EQ(-50, ConstantInt::get(Int8Ty, 206)->getSExtValue()); + EXPECT_EQ(-50, ConstantInt::getSigned(Int8Ty, -50)->getSExtValue()); + EXPECT_EQ(206U, ConstantInt::getSigned(Int8Ty, -50)->getZExtValue()); + + // Overflow is handled by truncation. + EXPECT_EQ(0x3b, ConstantInt::get(Int8Ty, 0x13b)->getSExtValue()); +} + } // end anonymous namespace } // end namespace llvm |