diff --git a/llvm/lib/Target/PowerPC/PPCCTRLoops.cpp b/llvm/lib/Target/PowerPC/PPCCTRLoops.cpp
index 6de366c2bb6648..68afc5104ec2e0 100644
--- a/llvm/lib/Target/PowerPC/PPCCTRLoops.cpp
+++ b/llvm/lib/Target/PowerPC/PPCCTRLoops.cpp
@@ -263,34 +263,13 @@ void PPCCTRLoops::expandNormalLoops(MachineLoop *ML, MachineInstr *Start,
 
   // Add other inputs for the PHI node.
   if (ML->isLoopLatch(Exiting)) {
-    // Normally there must be only two predecessors for the loop header, one is
-    // the Preheader and the other one is loop latch Exiting. In hardware loop
+    // There must be only two predecessors for the loop header, one is the
+    // Preheader and the other one is loop latch Exiting. In hardware loop
     // insertion pass, the block containing DecreaseCTRloop must dominate all
     // loop latches. So there must be only one latch.
-    // But there are some optimizations after ISEL, like tail duplicator, may
-    // merge the two-predecessor loop header with its successor. If the
-    // successor happens to be a header of nest loop, then we will have a header
-    // which has more than 2 predecessors.
-    assert(llvm::is_contained(ML->getHeader()->predecessors(), Exiting) &&
-           "Loop latch is not loop header predecessor!");
-    assert(llvm::is_contained(ML->getHeader()->predecessors(), Preheader) &&
-           "Loop preheader is not loop header predecessor!");
-
+    assert(ML->getHeader()->pred_size() == 2 &&
+           "Loop header predecessor is not right!");
     PHIMIB.addReg(ADDIDef).addMBB(Exiting);
-
-    if (ML->getHeader()->pred_size() > 2) {
-      Register HeaderIncoming = MRI->createVirtualRegister(
-          Is64Bit ? &PPC::G8RC_and_G8RC_NOX0RegClass
-                  : &PPC::GPRC_and_GPRC_NOR0RegClass);
-      BuildMI(*ML->getHeader(), ML->getHeader()->getFirstNonPHI(), DebugLoc(),
-              TII->get(TargetOpcode::COPY), HeaderIncoming)
-          .addReg(PHIDef);
-
-      for (MachineBasicBlock *P : ML->getHeader()->predecessors()) {
-        if (P != Preheader && P != Exiting)
-          PHIMIB.addReg(HeaderIncoming).addMBB(P);
-      }
-    }
   } else {
     // If the block containing DecreaseCTRloop is not a loop latch, we can use
     // ADDIDef as the value for all other blocks for the PHI. In hardware loop
diff --git a/llvm/test/CodeGen/PowerPC/ctrloop-header-multiple-preds.mir b/llvm/test/CodeGen/PowerPC/ctrloop-header-multiple-preds.mir
deleted file mode 100644
index 2921b4ddf9818e..00000000000000
--- a/llvm/test/CodeGen/PowerPC/ctrloop-header-multiple-preds.mir
+++ /dev/null
@@ -1,214 +0,0 @@
-# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
-# RUN: llc -ppc-asm-full-reg-names -mtriple=powerpc-ibm-aix-xcoff \
-# RUN:   -stop-after=ppc-ctrloops %s -o - -verify-machineinstrs | FileCheck %s
-
----
-name:            three-preds-single-block-loop
-
-tracksRegLiveness: true
-body:             |
-  ; CHECK-LABEL: name: three-preds-single-block-loop
-  ; CHECK: bb.0.entry:
-  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   [[LI:%[0-9]+]]:gprc = LI 2048
-  ; CHECK-NEXT:   [[LI1:%[0-9]+]]:gprc = LI 9
-  ; CHECK-NEXT:   [[CMPLWI:%[0-9]+]]:crrc = CMPLWI [[LI1]], 0
-  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:crbitrc = COPY [[CMPLWI]].sub_eq
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.1:
-  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gprc_and_gprc_nor0 = PHI [[LI]], %bb.0, %7, %bb.2, %8, %bb.1
-  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gprc_and_gprc_nor0 = COPY [[PHI]]
-  ; CHECK-NEXT:   BC [[COPY]], %bb.1
-  ; CHECK-NEXT:   B %bb.2
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.2:
-  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.3(0x40000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-  ; CHECK-NEXT:   [[ADDI:%[0-9]+]]:gprc_and_gprc_nor0 = ADDI [[PHI]], -1
-  ; CHECK-NEXT:   [[CMPLWI1:%[0-9]+]]:crrc = CMPLWI [[ADDI]], 0
-  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:crbitrc = COPY [[CMPLWI1]].sub_gt
-  ; CHECK-NEXT:   BC [[COPY2]], %bb.1
-  ; CHECK-NEXT:   B %bb.3
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.3:
-  ; CHECK-NEXT:   BLR implicit $lr, implicit $rm
-  bb.0.entry:
-
-    %0:gprc = LI 2048
-    %1:gprc_and_gprc_nor0 = LI 10
-    MTCTRloop killed %0:gprc, implicit-def dead $ctr
-
-  bb.1:
-    %2:gprc = ADDI %1:gprc_and_gprc_nor0, -1
-    %3:crrc = CMPLWI %2:gprc, 0
-    %4:crbitrc = COPY %3.sub_eq
-    BC killed %4:crbitrc, %bb.1
-    B %bb.2
-
-  bb.2:
-
-    INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-    %5:crbitrc = DecreaseCTRloop 1, implicit-def dead $ctr, implicit $ctr
-    BC killed %5:crbitrc, %bb.1
-    B %bb.3
-
-  bb.3:
-
-    BLR implicit $lr, implicit $rm
-...
----
-name:            three-preds-mult-blocks-loop
-
-tracksRegLiveness: true
-body:             |
-  ; CHECK-LABEL: name: three-preds-mult-blocks-loop
-  ; CHECK: bb.0.entry:
-  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   [[LI:%[0-9]+]]:gprc = LI 2048
-  ; CHECK-NEXT:   [[LI1:%[0-9]+]]:gprc = LI 9
-  ; CHECK-NEXT:   [[CMPLWI:%[0-9]+]]:crrc = CMPLWI [[LI1]], 0
-  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:crbitrc = COPY [[CMPLWI]].sub_eq
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.1:
-  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gprc_and_gprc_nor0 = PHI [[LI]], %bb.0, %7, %bb.3, %8, %bb.2
-  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gprc_and_gprc_nor0 = COPY [[PHI]]
-  ; CHECK-NEXT:   INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-  ; CHECK-NEXT:   B %bb.2
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.2:
-  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.3(0x40000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   BC [[COPY]], %bb.1
-  ; CHECK-NEXT:   B %bb.3
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.3:
-  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.4(0x40000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-  ; CHECK-NEXT:   [[ADDI:%[0-9]+]]:gprc_and_gprc_nor0 = ADDI [[PHI]], -1
-  ; CHECK-NEXT:   [[CMPLWI1:%[0-9]+]]:crrc = CMPLWI [[ADDI]], 0
-  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:crbitrc = COPY [[CMPLWI1]].sub_gt
-  ; CHECK-NEXT:   BC [[COPY2]], %bb.1
-  ; CHECK-NEXT:   B %bb.4
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.4:
-  ; CHECK-NEXT:   BLR implicit $lr, implicit $rm
-  bb.0.entry:
-
-    %0:gprc = LI 2048
-    %1:gprc_and_gprc_nor0 = LI 10
-    MTCTRloop killed %0:gprc, implicit-def dead $ctr
-
-  bb.1:
-    INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-    B %bb.2
-
-  bb.2:
-    %2:gprc = ADDI %1:gprc_and_gprc_nor0, -1
-    %3:crrc = CMPLWI %2:gprc, 0
-    %4:crbitrc = COPY %3.sub_eq
-    BC killed %4:crbitrc, %bb.1
-    B %bb.3
-
-  bb.3:
-
-    INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-    %5:crbitrc = DecreaseCTRloop 1, implicit-def dead $ctr, implicit $ctr
-    BC killed %5:crbitrc, %bb.1
-    B %bb.4
-
-  bb.4:
-
-    BLR implicit $lr, implicit $rm
-...
----
-name:            more-than-three-preds
-
-tracksRegLiveness: true
-body:             |
-  ; CHECK-LABEL: name: more-than-three-preds
-  ; CHECK: bb.0.entry:
-  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   [[LI:%[0-9]+]]:gprc = LI 2048
-  ; CHECK-NEXT:   [[LI1:%[0-9]+]]:gprc = LI 9
-  ; CHECK-NEXT:   [[CMPLWI:%[0-9]+]]:crrc = CMPLWI [[LI1]], 0
-  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:crbitrc = COPY [[CMPLWI]].sub_eq
-  ; CHECK-NEXT:   [[LI2:%[0-9]+]]:gprc = LI 8
-  ; CHECK-NEXT:   [[CMPLWI1:%[0-9]+]]:crrc = CMPLWI [[LI2]], 0
-  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:crbitrc = COPY [[CMPLWI1]].sub_gt
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.1:
-  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gprc_and_gprc_nor0 = PHI [[LI]], %bb.0, %10, %bb.4, %11, %bb.2, %11, %bb.3
-  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gprc_and_gprc_nor0 = COPY [[PHI]]
-  ; CHECK-NEXT:   INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-  ; CHECK-NEXT:   B %bb.2
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.2:
-  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.3(0x40000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   BC [[COPY]], %bb.1
-  ; CHECK-NEXT:   B %bb.3
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.3:
-  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.4(0x40000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   BC [[COPY1]], %bb.1
-  ; CHECK-NEXT:   B %bb.4
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.4:
-  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.5(0x40000000)
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-  ; CHECK-NEXT:   [[ADDI:%[0-9]+]]:gprc_and_gprc_nor0 = ADDI [[PHI]], -1
-  ; CHECK-NEXT:   [[CMPLWI2:%[0-9]+]]:crrc = CMPLWI [[ADDI]], 0
-  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:crbitrc = COPY [[CMPLWI2]].sub_gt
-  ; CHECK-NEXT:   BC [[COPY3]], %bb.1
-  ; CHECK-NEXT:   B %bb.5
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.5:
-  ; CHECK-NEXT:   BLR implicit $lr, implicit $rm
-  bb.0.entry:
-
-    %0:gprc = LI 2048
-    %1:gprc_and_gprc_nor0 = LI 10
-    MTCTRloop killed %0:gprc, implicit-def dead $ctr
-
-  bb.1:
-    INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-    B %bb.2
-
-  bb.2:
-    %2:gprc = ADDI %1:gprc_and_gprc_nor0, -1
-    %3:crrc = CMPLWI %2:gprc, 0
-    %4:crbitrc = COPY %3.sub_eq
-    BC killed %4:crbitrc, %bb.1
-    B %bb.3
-
-  bb.3:
-    %5:gprc = ADDI %1:gprc_and_gprc_nor0, -2
-    %6:crrc = CMPLWI %5:gprc, 0
-    %7:crbitrc = COPY %6.sub_gt
-    BC killed %7:crbitrc, %bb.1
-    B %bb.4
-
-  bb.4:
-
-    INLINEASM &"", 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def early-clobber $ctr
-    %8:crbitrc = DecreaseCTRloop 1, implicit-def dead $ctr, implicit $ctr
-    BC killed %8:crbitrc, %bb.1
-    B %bb.5
-
-  bb.5:
-
-    BLR implicit $lr, implicit $rm
-...