Index: lib/CodeGen/SelectionDAG/DAGCombiner.cpp
===================================================================
--- lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -12849,10 +12849,6 @@
       if (!Ld)
         break;
 
-      // Loads must only have one use.
-      if (!Ld->hasNUsesOfValue(1, 0))
-        break;
-
       // The memory operands must not be volatile.
       if (Ld->isVolatile() || Ld->isIndexed())
         break;
@@ -12861,10 +12857,6 @@
       if (Ld->getExtensionType() != ISD::NON_EXTLOAD)
         break;
 
-      // The stored memory type must be the same.
-      if (Ld->getMemoryVT() != MemVT)
-        break;
-
       BaseIndexOffset LdPtr = BaseIndexOffset::match(Ld->getBasePtr(), DAG);
       // If this is not the first ptr that we check.
       if (LdBasePtr.Base.getNode()) {
@@ -13012,8 +13004,16 @@
     // Transfer chain users from old loads to the new load.
     for (unsigned i = 0; i < NumElem; ++i) {
       LoadSDNode *Ld = cast<LoadSDNode>(LoadNodes[i].MemNode);
-      DAG.ReplaceAllUsesOfValueWith(SDValue(Ld, 1),
-                                    SDValue(NewLoad.getNode(), 1));
+      if (SDValue(Ld, 0).hasOneUse()) {
+        // Only the original store used value so just replace chain.
+        DAG.ReplaceAllUsesOfValueWith(SDValue(Ld, 1),
+                                      SDValue(NewLoad.getNode(), 1));
+      } else {
+        // Multiple uses exist. Keep the old load in line with the new
+        // load.
+        DAG.makeEquivalentMemoryOrdering(Ld, NewLoad);
+        AddToWorklist(Ld);
+      }
     }
 
     // Replace the all stores with the new store.
Index: test/CodeGen/X86/merge_store_duplicated_loads.ll
===================================================================
--- test/CodeGen/X86/merge_store_duplicated_loads.ll
+++ test/CodeGen/X86/merge_store_duplicated_loads.ll
@@ -1,18 +1,15 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -o - | FileCheck %s
 
-
+; PR32086
 target triple = "x86_64-unknown-linux-gnu"
 
 define void @merge_double(double* noalias nocapture %st, double* noalias nocapture readonly %ld) #0 {
 ; CHECK-LABEL: merge_double:
 ; CHECK:       # BB#0:
-; CHECK-NEXT:    movsd {{.*#+}} xmm0 = mem[0],zero
-; CHECK-NEXT:    movsd {{.*#+}} xmm1 = mem[0],zero
-; CHECK-NEXT:    movsd %xmm0, (%rdi)
-; CHECK-NEXT:    movsd %xmm1, 8(%rdi)
-; CHECK-NEXT:    movsd %xmm0, 16(%rdi)
-; CHECK-NEXT:    movsd %xmm1, 24(%rdi)
+; CHECK-NEXT:    movups (%rsi), %xmm0
+; CHECK-NEXT:    movups %xmm0, (%rdi)
+; CHECK-NEXT:    movups %xmm0, 16(%rdi)
 ; CHECK-NEXT:    retq
   %ld_idx1 = getelementptr inbounds double, double* %ld, i64 1
   %ld0 = load double, double* %ld, align 8, !tbaa !2
@@ -32,12 +29,9 @@
 define void @merge_loadstore_int(i64* noalias nocapture readonly %p, i64* noalias nocapture %q) local_unnamed_addr #0 {
 ; CHECK-LABEL: merge_loadstore_int:
 ; CHECK:       # BB#0: # %entry
-; CHECK-NEXT:    movq (%rdi), %rax
-; CHECK-NEXT:    movq 8(%rdi), %rcx
-; CHECK-NEXT:    movq %rax, (%rsi)
-; CHECK-NEXT:    movq %rcx, 8(%rsi)
-; CHECK-NEXT:    movq %rax, 16(%rsi)
-; CHECK-NEXT:    movq %rcx, 24(%rsi)
+; CHECK-NEXT:    movups (%rdi), %xmm0
+; CHECK-NEXT:    movups %xmm0, (%rsi)
+; CHECK-NEXT:    movups %xmm0, 16(%rsi)
 ; CHECK-NEXT:    retq
 entry:
   %0 = load i64, i64* %p, align 8, !tbaa !1
@@ -57,11 +51,9 @@
 ; CHECK-LABEL: merge_loadstore_int_with_extra_use:
 ; CHECK:       # BB#0: # %entry
 ; CHECK-NEXT:    movq (%rdi), %rax
-; CHECK-NEXT:    movq 8(%rdi), %rcx
-; CHECK-NEXT:    movq %rax, (%rsi)
-; CHECK-NEXT:    movq %rcx, 8(%rsi)
-; CHECK-NEXT:    movq %rax, 16(%rsi)
-; CHECK-NEXT:    movq %rcx, 24(%rsi)
+; CHECK-NEXT:    movups (%rdi), %xmm0
+; CHECK-NEXT:    movups %xmm0, (%rsi)
+; CHECK-NEXT:    movups %xmm0, 16(%rsi)
 ; CHECK-NEXT:    retq
 entry:
   %0 = load i64, i64* %p, align 8, !tbaa !1