1 files changed, 5 insertions, 15 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index 2d2002680ba..47d8870cd95 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -464,29 +464,25 @@ private:
   ///        the same function, use the same failure basic block).
   class StackProtectorDescriptor {
   public:
-    StackProtectorDescriptor() : ParentMBB(nullptr), SuccessMBB(nullptr),
-                                 FailureMBB(nullptr), Guard(nullptr),
-                                 GuardReg(0) { }
+    StackProtectorDescriptor()
+        : ParentMBB(nullptr), SuccessMBB(nullptr), FailureMBB(nullptr),
+          GuardReg(0) {}
 
     /// Returns true if all fields of the stack protector descriptor are
     /// initialized implying that we should/are ready to emit a stack protector.
     bool shouldEmitStackProtector() const {
-      return ParentMBB && SuccessMBB && FailureMBB && Guard;
+      return ParentMBB && SuccessMBB && FailureMBB;
     }
 
     /// Initialize the stack protector descriptor structure for a new basic
     /// block.
-    void initialize(const BasicBlock *BB,
-                    MachineBasicBlock *MBB,
-                    const CallInst &StackProtCheckCall) {
+    void initialize(const BasicBlock *BB, MachineBasicBlock *MBB) {
       // Make sure we are not initialized yet.
       assert(!shouldEmitStackProtector() && "Stack Protector Descriptor is "
              "already initialized!");
       ParentMBB = MBB;
       SuccessMBB = AddSuccessorMBB(BB, MBB, /* IsLikely */ true);
       FailureMBB = AddSuccessorMBB(BB, MBB, /* IsLikely */ false, FailureMBB);
-      if (!Guard)
-        Guard = StackProtCheckCall.getArgOperand(0);
     }
 
     /// Reset state that changes when we handle different basic blocks.
@@ -515,14 +511,12 @@ private:
     /// always the same.
     void resetPerFunctionState() {
       FailureMBB = nullptr;
-      Guard = nullptr;
       GuardReg = 0;
     }
 
     MachineBasicBlock *getParentMBB() { return ParentMBB; }
     MachineBasicBlock *getSuccessMBB() { return SuccessMBB; }
     MachineBasicBlock *getFailureMBB() { return FailureMBB; }
-    const Value *getGuard() { return Guard; }
 
     unsigned getGuardReg() const { return GuardReg; }
     void setGuardReg(unsigned R) { GuardReg = R; }
@@ -545,10 +539,6 @@ private:
     /// contain a call to __stack_chk_fail().
     MachineBasicBlock *FailureMBB;
 
-    /// The guard variable which we will compare against the stored value in the
-    /// stack protector stack slot.
-    const Value *Guard;
-
     /// The virtual register holding the stack guard value.
     unsigned GuardReg;