diff --git a/llvm/lib/CodeGen/MachineOutliner.cpp b/llvm/lib/CodeGen/MachineOutliner.cpp
--- a/llvm/lib/CodeGen/MachineOutliner.cpp
+++ b/llvm/lib/CodeGen/MachineOutliner.cpp
@@ -116,6 +116,10 @@
     cl::desc(
         "Number of times to rerun the outliner after the initial outline"));
 
+static cl::opt<unsigned> OutlinerBenefitThreshold(
+    "outliner-benefit-threshold", cl::init(1), cl::Hidden,
+    cl::desc("The minimum size before an outlining candidate is accpeted"));
+
 namespace {
 
 /// Maps \p MachineInstrs to unsigned integers and stores the mappings.
@@ -664,7 +668,7 @@
       continue;
 
     // Is it better to outline this candidate than not?
-    if (OF.getBenefit() < 1) {
+    if (OF.getBenefit() < OutlinerBenefitThreshold) {
       emitNotOutliningCheaperRemark(StringLen, CandidatesForRepeatedSeq, OF);
       continue;
     }
@@ -840,7 +844,7 @@
     });
 
     // If we made it unbeneficial to outline this function, skip it.
-    if (OF.getBenefit() < 1)
+    if (OF.getBenefit() < OutlinerBenefitThreshold)
       continue;
 
     // It's beneficial. Create the function and outline its sequence's
diff --git a/llvm/test/CodeGen/AArch64/machine-outliner-threshold.ll b/llvm/test/CodeGen/AArch64/machine-outliner-threshold.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/machine-outliner-threshold.ll
@@ -0,0 +1,117 @@
+; RUN: llc -verify-machineinstrs -enable-machine-outliner -aarch64-load-store-renaming=true -mtriple=aarch64-apple-darwin -outliner-benefit-threshold=60 < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -enable-machine-outliner -aarch64-load-store-renaming=true -mtriple=aarch64-apple-darwin < %s | FileCheck %s -check-prefix=ALL
+
+define void @cat() #0 {
+  ; CHECK-LABEL: _cat:
+  ; CHECK: sub sp, sp, #32
+  ; ALL: [[OUTLINED:OUTLINED_FUNCTION_[0-9]+]]
+  %1 = alloca i32, align 4
+  %2 = alloca i32, align 4
+  %3 = alloca i32, align 4
+  %4 = alloca i32, align 4
+  %5 = alloca i32, align 4
+  %6 = alloca i32, align 4
+  store i32 1, ptr %1, align 4
+  store i32 2, ptr %2, align 4
+  store i32 3, ptr %3, align 4
+  store i32 4, ptr %4, align 4
+  store i32 5, ptr %5, align 4
+  store i32 6, ptr %6, align 4
+  ret void
+}
+
+define void @dog() #0 {
+  ; CHECK-LABEL: _dog:
+  ; CHECK: sub sp, sp, #32
+  ; ALL: [[OUTLINED]]
+  %1 = alloca i32, align 4
+  %2 = alloca i32, align 4
+  %3 = alloca i32, align 4
+  %4 = alloca i32, align 4
+  %5 = alloca i32, align 4
+  %6 = alloca i32, align 4
+  store i32 1, ptr %1, align 4
+  store i32 2, ptr %2, align 4
+  store i32 3, ptr %3, align 4
+  store i32 4, ptr %4, align 4
+  store i32 5, ptr %5, align 4
+  store i32 6, ptr %6, align 4
+  ret void
+}
+
+define void @other_cat() #0 {
+  ; CHECK-LABEL: _other_cat:
+  ; CHECK: [[OUTLINED:OUTLINED_FUNCTION_[0-9]+]]
+  ; ALL: [[OUTLINED2:OUTLINED_FUNCTION_[0-9]+]]
+  %1 = alloca i32, align 4
+  %2 = alloca i32, align 4
+  %3 = alloca i32, align 4
+  %4 = alloca i32, align 4
+  %5 = alloca i32, align 4
+  %6 = alloca i32, align 4
+  store i32 1, ptr %1, align 4
+  store i32 2, ptr %2, align 4
+  store i32 3, ptr %3, align 4
+  store i32 4, ptr %4, align 4
+  store i32 5, ptr %5, align 4
+  store i32 6, ptr %6, align 4
+  %7 = alloca i32, align 4
+  %8 = alloca i32, align 4
+  %9 = alloca i32, align 4
+  store i32 7, ptr %7, align 4
+  store i32 8, ptr %8, align 4
+  store i32 9, ptr %9, align 4
+  ret void
+}
+
+define void @other_dog() #0 {
+  ; CHECK-LABEL: _other_dog:
+  ; CHECK: [[OUTLINED]]
+  ; ALL: [[OUTLINED2]]
+  %1 = alloca i32, align 4
+  %2 = alloca i32, align 4
+  %3 = alloca i32, align 4
+  %4 = alloca i32, align 4
+  %5 = alloca i32, align 4
+  %6 = alloca i32, align 4
+  store i32 1, ptr %1, align 4
+  store i32 2, ptr %2, align 4
+  store i32 3, ptr %3, align 4
+  store i32 4, ptr %4, align 4
+  store i32 5, ptr %5, align 4
+  store i32 6, ptr %6, align 4
+  %7 = alloca i32, align 4
+  %8 = alloca i32, align 4
+  %9 = alloca i32, align 4
+  store i32 7, ptr %7, align 4
+  store i32 8, ptr %8, align 4
+  store i32 9, ptr %9, align 4
+  ret void
+}
+
+;      CHECK: .p2align 2
+; CHECK-NEXT: [[OUTLINED]]:
+;      CHECK: mov     w9, #1
+;  CHECK-DAG: mov     w8, #2
+;  CHECK-DAG: stp     w8, w9, [sp, #40]
+;  CHECK-DAG: mov     w9, #3
+;  CHECK-DAG: mov     w8, #4
+;  CHECK-DAG: stp     w8, w9, [sp, #32]
+;  CHECK-DAG: mov     w9, #5
+;  CHECK-DAG: mov     w8, #6
+;  CHECK-DAG: stp     w8, w9, [sp, #24]
+;  CHECK-DAG: mov     w9, #7
+;  CHECK-DAG: mov     w8, #8
+;  CHECK-DAG: stp     w8, w9, [sp, #16]
+;  CHECK-DAG: mov     w8, #9
+;  CHECK-DAG: str     w8, [sp, #12]
+;  CHECK-DAG: add     sp, sp, #48
+;  CHECK-DAG: ret
+
+;      ALL-DAG: .p2align 2
+; ALL-DAG: [[OUTLINED]]:
+
+;      ALL-DAG: .p2align 2
+; ALL-DAG: [[OUTLINED2]]:
+
+attributes #0 = { nounwind noredzone "target-cpu"="cyclone" "target-features"="+sse" }