Fix sext operation. Shifting by zero would leave an incorrect mask.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34617 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index 09a600f..e137786 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -889,7 +889,7 @@
return;
}
- uint64_t mask = ~0ULL << wordBits;
+ uint64_t mask = wordBits == 0 ? 0 : ~0ULL << wordBits;
uint64_t *newVal = getMemory(wordsAfter);
if (wordsBefore == 1)
newVal[0] = VAL | mask;