Author: leonardchan
Date: Mon Aug 6 10:55:38 2018
New Revision: 339037
URL: http://llvm.org/viewvc/llvm-project?rev=339037&view=rev
Log:
Fix for failing test from sanitizer-x86_64-linux-fast where there was a
left shift on a negative value.
Modified:
cfe/trunk/unittests/Basic/FixedPointTest.cpp
Modified: cfe/trunk/unittests/Basic/FixedPointTest.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/Basic/FixedPointTest.cpp?rev=339037&r1=339036&r2=339037&view=diff
==============================================================================
--- cfe/trunk/unittests/Basic/FixedPointTest.cpp (original)
+++ cfe/trunk/unittests/Basic/FixedPointTest.cpp Mon Aug 6 10:55:38 2018
@@ -364,12 +364,19 @@ TEST(FixedPoint, compare) {
void CheckUnsaturatedConversion(FixedPointSemantics Src,
FixedPointSemantics Dst, int64_t TestVal) {
int64_t ScaledVal = TestVal;
+ bool IsNegative = ScaledVal < 0;
+ if (IsNegative)
+ ScaledVal = -ScaledVal;
+
if (Dst.getScale() > Src.getScale()) {
ScaledVal <<= (Dst.getScale() - Src.getScale());
} else {
ScaledVal >>= (Src.getScale() - Dst.getScale());
}
+ if (IsNegative)
+ ScaledVal = -ScaledVal;
+
APFixedPoint Fixed(TestVal, Src);
APFixedPoint Expected(ScaledVal, Dst);
ASSERT_EQ(Fixed.convert(Dst), Expected);
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