diff --git a/llvm/lib/Target/AArch64/AArch64CondBrTuning.cpp b/llvm/lib/Target/AArch64/AArch64CondBrTuning.cpp
--- a/llvm/lib/Target/AArch64/AArch64CondBrTuning.cpp
+++ b/llvm/lib/Target/AArch64/AArch64CondBrTuning.cpp
@@ -194,12 +194,8 @@
 
       // There must not be any instruction between DefMI and MI that clobbers or
       // reads NZCV.
-      MachineBasicBlock::iterator I(DefMI), E(MI);
-      for (I = std::next(I); I != E; ++I) {
-        if (I->modifiesRegister(AArch64::NZCV, TRI) ||
-            I->readsRegister(AArch64::NZCV, TRI))
-          return false;
-      }
+      if (isNZCVTouchedInInstructionRange(DefMI, MI, TRI))
+        return false;
       LLVM_DEBUG(dbgs() << "  Replacing instructions:\n    ");
       LLVM_DEBUG(DefMI.print(dbgs()));
       LLVM_DEBUG(dbgs() << "    ");
@@ -253,12 +249,8 @@
         return false;
       // There must not be any instruction between DefMI and MI that clobbers or
       // reads NZCV.
-      MachineBasicBlock::iterator I(DefMI), E(MI);
-      for (I = std::next(I); I != E; ++I) {
-        if (I->modifiesRegister(AArch64::NZCV, TRI) ||
-            I->readsRegister(AArch64::NZCV, TRI))
-          return false;
-      }
+      if (isNZCVTouchedInInstructionRange(DefMI, MI, TRI))
+        return false;
       LLVM_DEBUG(dbgs() << "  Replacing instructions:\n    ");
       LLVM_DEBUG(DefMI.print(dbgs()));
       LLVM_DEBUG(dbgs() << "    ");
diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.h b/llvm/lib/Target/AArch64/AArch64InstrInfo.h
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.h
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.h
@@ -316,6 +316,12 @@
   unsigned findRegisterToSaveLRTo(const outliner::Candidate &C) const;
 };
 
+/// Return true if there is an instruction /after/ \p DefMI and before \p UseMI
+/// which either reads or clobbers NZCV.
+bool isNZCVTouchedInInstructionRange(const MachineInstr &DefMI,
+                                     const MachineInstr &UseMI,
+                                     const TargetRegisterInfo *TRI);
+
 /// emitFrameOffset - Emit instructions as needed to set DestReg to SrcReg
 /// plus Offset.  This is intended to be used from within the prolog/epilog
 /// insertion (PEI) pass, where a virtual scratch register may be allocated
diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
@@ -3173,6 +3173,17 @@
   MI.addMemOperand(MMO);
 }
 
+bool llvm::isNZCVTouchedInInstructionRange(const MachineInstr &DefMI,
+                                           const MachineInstr &UseMI,
+                                           const TargetRegisterInfo *TRI) {
+  for (const MachineInstr &I : instructionsWithoutDebug(
+           std::next(DefMI.getIterator()), UseMI.getIterator()))
+    if (I.modifiesRegister(AArch64::NZCV, TRI) ||
+        I.readsRegister(AArch64::NZCV, TRI))
+      return true;
+  return false;
+}
+
 // Helper function to emit a frame offset adjustment from a given
 // pointer (SrcReg), stored into DestReg. This function is explicit
 // in that it requires the opcode.
diff --git a/llvm/test/CodeGen/AArch64/arm64-early-ifcvt.ll b/llvm/test/CodeGen/AArch64/arm64-early-ifcvt.ll
--- a/llvm/test/CodeGen/AArch64/arm64-early-ifcvt.ll
+++ b/llvm/test/CodeGen/AArch64/arm64-early-ifcvt.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -stress-early-ifcvt -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
+; RUN: llc -debugify-and-strip-all-safe < %s -stress-early-ifcvt -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
 target triple = "arm64-apple-macosx"
 
 ; CHECK: mm2
diff --git a/llvm/test/CodeGen/AArch64/arm64-shrink-wrapping.ll b/llvm/test/CodeGen/AArch64/arm64-shrink-wrapping.ll
--- a/llvm/test/CodeGen/AArch64/arm64-shrink-wrapping.ll
+++ b/llvm/test/CodeGen/AArch64/arm64-shrink-wrapping.ll
@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc %s -o - -mtriple=arm64-apple-ios -enable-shrink-wrap=true -disable-post-ra -frame-pointer=non-leaf | FileCheck %s --check-prefix=ENABLE
-; RUN: llc %s -o - -enable-shrink-wrap=false -disable-post-ra -frame-pointer=non-leaf | FileCheck %s --check-prefix=DISABLE
+; RUN: llc -debugify-and-strip-all-safe %s -o - -mtriple=arm64-apple-ios -enable-shrink-wrap=true -disable-post-ra -frame-pointer=non-leaf | FileCheck %s --check-prefix=ENABLE
+; RUN: llc -debugify-and-strip-all-safe %s -o - -enable-shrink-wrap=false -disable-post-ra -frame-pointer=non-leaf | FileCheck %s --check-prefix=DISABLE
 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
 target triple = "arm64-apple-ios"
 
diff --git a/llvm/test/CodeGen/AArch64/cond-br-tuning.ll b/llvm/test/CodeGen/AArch64/cond-br-tuning.ll
--- a/llvm/test/CodeGen/AArch64/cond-br-tuning.ll
+++ b/llvm/test/CodeGen/AArch64/cond-br-tuning.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -O3 -mtriple=aarch64-eabi -verify-machineinstrs | FileCheck %s
+; RUN: llc -debugify-and-strip-all-safe < %s -O3 -mtriple=aarch64-eabi -verify-machineinstrs | FileCheck %s
 
 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
 target triple = "aarch64-linaro-linux-gnueabi"