Fix ubsan errors introduced by r333263 re. left-shifting negative values.
llvm-svn: 333270
diff --git a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
index 8e1e73e..f525c81 100644
--- a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
+++ b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
@@ -648,7 +648,7 @@
if (isImm())
if (auto *CE = dyn_cast<MCConstantExpr>(getImm())) {
int64_t Val = CE->getValue();
- if ((Val != 0) && ((Val >> Width) << Width) == Val)
+ if ((Val != 0) && (uint64_t(Val >> Width) << Width) == uint64_t(Val))
return std::make_pair(Val >> Width, Width);
else
return std::make_pair(Val, 0u);
@@ -736,7 +736,8 @@
std::is_same<int8_t, typename std::make_signed<T>::type>::value;
if (auto ShiftedImm = getShiftedVal<8>())
if (!(IsByte && ShiftedImm->second) &&
- AArch64_AM::isSVECpyImm<T>(ShiftedImm->first << ShiftedImm->second))
+ AArch64_AM::isSVECpyImm<T>(uint64_t(ShiftedImm->first)
+ << ShiftedImm->second))
return DiagnosticPredicateTy::Match;
return DiagnosticPredicateTy::NearMatch;