3 files changed, 5 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index bdd6bf0..46c4bb8 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -9374,7 +9374,7 @@ static unsigned bigEndianByteAt(unsigned BW, unsigned i) {
 // Check if the bytes offsets we are looking at match with either big or
 // little endian value loaded. Return true for big endian, false for little
 // endian, and std::nullopt if match failed.
-static std::optional<bool> isBigEndian(const ArrayRef<int64_t> ByteOffsets,
+static std::optional<bool> isBigEndian(ArrayRef<int64_t> ByteOffsets,
                                        int64_t FirstOffset) {
   // The endian can be decided only when it is 2 bytes at least.
   unsigned Width = ByteOffsets.size();
diff --git a/llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
index bb10cf6..d84c3fb 100644
--- a/llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
@@ -733,6 +733,8 @@ MachineOperand GetMOForConstDbgOp(const SDDbgOperand &Op) {
   if (const ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
     if (CI->getBitWidth() > 64)
       return MachineOperand::CreateCImm(CI);
+    if (CI->getBitWidth() == 1)
+      return MachineOperand::CreateImm(CI->getZExtValue());
     return MachineOperand::CreateImm(CI->getSExtValue());
   }
   if (const ConstantFP *CF = dyn_cast<ConstantFP>(V))
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index a522650..fa0c899 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -8958,9 +8958,8 @@ bool SelectionDAGBuilder::canTailCall(const CallBase &CB) const {
   // Avoid emitting tail calls in functions with the disable-tail-calls
   // attribute.
   const Function *Caller = CB.getParent()->getParent();
-  if (Caller->getFnAttribute("disable-tail-calls").getValueAsString() ==
-          "true" &&
-      !isMustTailCall)
+  if (!isMustTailCall &&
+      Caller->getFnAttribute("disable-tail-calls").getValueAsBool())
     return false;
 
   // We can't tail call inside a function with a swifterror argument. Lowering