1 files changed, 7 insertions, 6 deletions
diff --git a/contrib/llvm-project/llvm/lib/CodeGen/ImplicitNullChecks.cpp b/contrib/llvm-project/llvm/lib/CodeGen/ImplicitNullChecks.cpp
index 1e82ea659617..0bbedb0a5ea6 100644
--- a/contrib/llvm-project/llvm/lib/CodeGen/ImplicitNullChecks.cpp
+++ b/contrib/llvm-project/llvm/lib/CodeGen/ImplicitNullChecks.cpp
@@ -50,6 +50,7 @@
 #include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/DebugLoc.h"
 #include "llvm/IR/LLVMContext.h"
+#include "llvm/InitializePasses.h"
 #include "llvm/MC/MCInstrDesc.h"
 #include "llvm/MC/MCRegisterInfo.h"
 #include "llvm/Pass.h"
@@ -278,12 +279,12 @@ bool ImplicitNullChecks::canReorder(const MachineInstr *A,
     if (!(MOA.isReg() && MOA.getReg()))
       continue;
 
-    unsigned RegA = MOA.getReg();
+    Register RegA = MOA.getReg();
     for (auto MOB : B->operands()) {
       if (!(MOB.isReg() && MOB.getReg()))
         continue;
 
-      unsigned RegB = MOB.getReg();
+      Register RegB = MOB.getReg();
 
       if (TRI->regsOverlap(RegA, RegB) && (MOA.isDef() || MOB.isDef()))
         return false;
@@ -371,7 +372,7 @@ ImplicitNullChecks::isSuitableMemoryOp(const MachineInstr &MI,
 
   // We want the mem access to be issued at a sane offset from PointerReg,
   // so that if PointerReg is null then the access reliably page faults.
-  if (!((MI.mayLoad() || MI.mayStore()) && !MI.isPredicable() &&
+  if (!(MI.mayLoadOrStore() && !MI.isPredicable() &&
         -PageSize < Offset && Offset < PageSize))
     return SR_Unsuitable;
 
@@ -517,7 +518,7 @@ bool ImplicitNullChecks::analyzeBlockForNullChecks(
   //
   // we must ensure that there are no instructions between the 'test' and
   // conditional jump that modify %rax.
-  const unsigned PointerReg = MBP.LHS.getReg();
+  const Register PointerReg = MBP.LHS.getReg();
 
   assert(MBP.ConditionDef->getParent() ==  &MBB && "Should be in basic block");
 
@@ -689,7 +690,7 @@ void ImplicitNullChecks::rewriteNullChecks(
     for (const MachineOperand &MO : FaultingInstr->operands()) {
       if (!MO.isReg() || !MO.isDef())
         continue;
-      unsigned Reg = MO.getReg();
+      Register Reg = MO.getReg();
       if (!Reg || MBB->isLiveIn(Reg))
         continue;
       MBB->addLiveIn(Reg);
@@ -697,7 +698,7 @@ void ImplicitNullChecks::rewriteNullChecks(
 
     if (auto *DepMI = NC.getOnlyDependency()) {
       for (auto &MO : DepMI->operands()) {
-        if (!MO.isReg() || !MO.getReg() || !MO.isDef())
+        if (!MO.isReg() || !MO.getReg() || !MO.isDef() || MO.isDead())
           continue;
         if (!NC.getNotNullSucc()->isLiveIn(MO.getReg()))
           NC.getNotNullSucc()->addLiveIn(MO.getReg());