diff --git a/llvm/test/Examples/ThinLtoJIT/Inputs/main.ll b/llvm/test/Examples/ThinLtoJIT/Inputs/main.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/Inputs/main.ll
@@ -0,0 +1,56 @@
+; ModuleID = 'main.s'
+source_filename = "main.c"
+
+define i32 @main(i32 %0, i8** nocapture readonly %1) {
+  %3 = alloca i8*, align 8
+  %4 = icmp sgt i32 %0, 1
+  br i1 %4, label %5, label %14
+
+5:
+  %6 = bitcast i8** %3 to i8*
+  call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %6)
+  %7 = getelementptr inbounds i8*, i8** %1, i64 1
+  %8 = load i8*, i8** %7, align 8
+  %9 = call i64 @strtol(i8* %8, i8** nonnull %3, i32 10)
+  %10 = load i8*, i8** %3, align 8
+  %11 = load i8, i8* %10, align 1
+  %12 = icmp eq i8 %11, 0
+  %13 = xor i1 %12, true
+  call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %6)
+  br i1 %12, label %14, label %24
+
+14:
+  %15 = phi i64 [ %9, %5 ], [ 40, %2 ]
+  %16 = call i32 @sub1(i32 3)
+  %17 = call i32 @max(i32 0, i32 %16)
+  %18 = trunc i64 %15 to i32
+  %19 = call i32 @workload(i32 %18)
+  %20 = call i32 @max(i32 %17, i32 %19)
+  %21 = call i32 @sub2(i32 4)
+  %22 = call i32 @max(i32 %20, i32 %21)
+  %23 = icmp slt i32 %22, 1
+  br label %24
+
+24:
+  %25 = phi i1 [ %23, %14 ], [ %13, %5 ]
+  %26 = zext i1 %25 to i32
+  ret i32 %26
+}
+
+declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
+declare i64 @strtol(i8* readonly, i8** nocapture, i32)
+declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
+declare i32 @max(i32, i32)
+declare i32 @sub1(i32)
+declare i32 @workload(i32)
+declare i32 @sub2(i32)
+
+^0 = module: (path: "main.s", hash: (527116715, 3332069392, 338859151, 688235912, 2536759033))
+^1 = gv: (name: "workload") ; guid = 2904160244401423009
+^2 = gv: (name: "llvm.lifetime.start.p0i8") ; guid = 3657761528566682672
+^3 = gv: (name: "sub1") ; guid = 6667511020869341723
+^4 = gv: (name: "max") ; guid = 8185957744030711343
+^5 = gv: (name: "strtol") ; guid = 10216030853587034628
+^6 = gv: (name: "llvm.lifetime.end.p0i8") ; guid = 14311549039910520616
+^7 = gv: (name: "main", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 27, calls: ((callee: ^5), (callee: ^3), (callee: ^4), (callee: ^1), (callee: ^8))))) ; guid = 15822663052811949562
+^8 = gv: (name: "sub2") ; guid = 15968543173600788063
diff --git a/llvm/test/Examples/ThinLtoJIT/Inputs/sub1.ll b/llvm/test/Examples/ThinLtoJIT/Inputs/sub1.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/Inputs/sub1.ll
@@ -0,0 +1,13 @@
+; ModuleID = 'sub1.s'
+source_filename = "sub1.c"
+
+define i32 @sub1(i32 %0) {
+  %2 = call i32 @workload(i32 %0)
+  ret i32 %2
+}
+
+declare i32 @workload(i32)
+
+^0 = module: (path: "sub1.s", hash: (716800708, 1140043336, 1672117802, 4083982944, 497481660))
+^1 = gv: (name: "workload") ; guid = 2904160244401423009
+^2 = gv: (name: "sub1", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 2, calls: ((callee: ^1))))) ; guid = 6667511020869341723
diff --git a/llvm/test/Examples/ThinLtoJIT/Inputs/sub2.ll b/llvm/test/Examples/ThinLtoJIT/Inputs/sub2.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/Inputs/sub2.ll
@@ -0,0 +1,25 @@
+; ModuleID = 'sub2.s'
+source_filename = "sub2.c"
+
+define i32 @sub2(i32 %0) {
+  %2 = call i32 @sub21(i32 %0)
+  %3 = call i32 @max(i32 0, i32 %2)
+  %4 = add nsw i32 %0, 1
+  %5 = call i32 @sub22(i32 %4)
+  %6 = call i32 @max(i32 %3, i32 %5)
+  %7 = add nsw i32 %0, 2
+  %8 = call i32 @sub23(i32 %7)
+  %9 = call i32 @max(i32 %6, i32 %8)
+  ret i32 %9
+}
+declare i32 @max(i32, i32)
+declare i32 @sub21(i32)
+declare i32 @sub22(i32)
+declare i32 @sub23(i32)
+
+^0 = module: (path: "sub2.s", hash: (1967678436, 1954842929, 2113549141, 2651172409, 3315993195))
+^1 = gv: (name: "sub23") ; guid = 1031837926433398383
+^2 = gv: (name: "max") ; guid = 8185957744030711343
+^3 = gv: (name: "sub22") ; guid = 8601446283390290348
+^4 = gv: (name: "sub21") ; guid = 12793086811415836454
+^5 = gv: (name: "sub2", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 9, calls: ((callee: ^4), (callee: ^2), (callee: ^3), (callee: ^1))))) ; guid = 15968543173600788063
diff --git a/llvm/test/Examples/ThinLtoJIT/Inputs/sub21.ll b/llvm/test/Examples/ThinLtoJIT/Inputs/sub21.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/Inputs/sub21.ll
@@ -0,0 +1,13 @@
+; ModuleID = 'sub21.s'
+source_filename = "sub21.c"
+
+define i32 @sub21(i32 %0) {
+  %2 = call i32 @workload(i32 %0)
+  ret i32 %2
+}
+
+declare i32 @workload(i32)
+
+^0 = module: (path: "sub21.s", hash: (2324013215, 2786549134, 2291471355, 584671689, 2308799624))
+^1 = gv: (name: "workload") ; guid = 2904160244401423009
+^2 = gv: (name: "sub21", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 2, calls: ((callee: ^1))))) ; guid = 12793086811415836454
diff --git a/llvm/test/Examples/ThinLtoJIT/Inputs/sub22.ll b/llvm/test/Examples/ThinLtoJIT/Inputs/sub22.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/Inputs/sub22.ll
@@ -0,0 +1,13 @@
+; ModuleID = 'sub22.s'
+source_filename = "sub22.c"
+
+define i32 @sub22(i32 %0) {
+  %2 = call i32 @workload(i32 %0)
+  ret i32 %2
+}
+
+declare i32 @workload(i32)
+
+^0 = module: (path: "sub22.s", hash: (4057258347, 3191877851, 3120355814, 3202334300, 790339932))
+^1 = gv: (name: "workload") ; guid = 2904160244401423009
+^2 = gv: (name: "sub22", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 2, calls: ((callee: ^1))))) ; guid = 8601446283390290348
diff --git a/llvm/test/Examples/ThinLtoJIT/Inputs/sub23.ll b/llvm/test/Examples/ThinLtoJIT/Inputs/sub23.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/Inputs/sub23.ll
@@ -0,0 +1,13 @@
+; ModuleID = 'sub23.s'
+source_filename = "sub23.c"
+
+define i32 @sub23(i32 %0) {
+  %2 = call i32 @workload(i32 %0)
+  ret i32 %2
+}
+
+declare i32 @workload(i32)
+
+^0 = module: (path: "sub23.s", hash: (1187217899, 2239201331, 3030240015, 3752221195, 912650771))
+^1 = gv: (name: "sub23", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 2, calls: ((callee: ^2))))) ; guid = 1031837926433398383
+^2 = gv: (name: "workload") ; guid = 2904160244401423009
diff --git a/llvm/test/Examples/ThinLtoJIT/Inputs/workload.ll b/llvm/test/Examples/ThinLtoJIT/Inputs/workload.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/Inputs/workload.ll
@@ -0,0 +1,78 @@
+; ModuleID = 'workload.s'
+source_filename = "workload.c"
+
+define i32 @max(i32 %0, i32 %1) {
+  %3 = icmp sgt i32 %0, %1
+  %4 = select i1 %3, i32 %0, i32 %1
+  ret i32 %4
+}
+
+define i32 @workload(i32 %0) {
+  %2 = icmp slt i32 %0, 64
+  %3 = select i1 %2, i32 %0, i32 64
+  %4 = icmp sgt i32 %3, 1
+  br i1 %4, label %5, label %12
+
+5:
+  %6 = phi i32 [ %10, %5 ], [ 1, %1 ]
+  %7 = phi i64 [ %9, %5 ], [ 1, %1 ]
+  %8 = phi i64 [ %7, %5 ], [ 0, %1 ]
+  %9 = add i64 %7, %8
+  %10 = add nuw nsw i32 %6, 1
+  %11 = icmp slt i32 %10, %3
+  br i1 %11, label %5, label %12
+
+12:
+  %13 = phi i64 [ 1, %1 ], [ %9, %5 ]
+  %14 = call fastcc i32 @fact(i64 %13)
+  ret i32 %14
+}
+
+define internal fastcc i32 @fact(i64 %0) {
+  %2 = icmp ult i64 %0, 2
+  br i1 %2, label %26, label %3
+
+3:
+  %4 = phi i32 [ %23, %22 ], [ 0, %1 ]
+  %5 = phi i64 [ %24, %22 ], [ 2, %1 ]
+  %6 = urem i64 %0, %5
+  %7 = icmp eq i64 %6, 0
+  br i1 %7, label %8, label %22
+
+8:
+  %9 = lshr i64 %5, 1
+  %10 = icmp ult i64 %5, 4
+  br i1 %10, label %18, label %14
+
+11:
+  %12 = add nuw i64 %15, 1
+  %13 = icmp ult i64 %15, %9
+  br i1 %13, label %14, label %18
+
+14:
+  %15 = phi i64 [ %12, %11 ], [ 2, %8 ]
+  %16 = urem i64 %5, %15
+  %17 = icmp eq i64 %16, 0
+  br i1 %17, label %18, label %11
+
+18:
+  %19 = phi i1 [ true, %8 ], [ true, %11 ], [ false, %14 ]
+  %20 = trunc i64 %5 to i32
+  %21 = select i1 %19, i32 %20, i32 %4
+  br label %22
+
+22:
+  %23 = phi i32 [ %21, %18 ], [ %4, %3 ]
+  %24 = add i64 %5, 1
+  %25 = icmp ugt i64 %24, %0
+  br i1 %25, label %26, label %3
+
+26:
+  %27 = phi i32 [ 0, %1 ], [ %23, %22 ]
+  ret i32 %27
+}
+
+^0 = module: (path: "workload.s", hash: (3100996161, 646883963, 3338709300, 3710134105, 1603428348))
+^1 = gv: (name: "workload", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 14, funcFlags: (readNone: 1, readOnly: 0, noRecurse: 1, returnDoesNotAlias: 0, noInline: 0, alwaysInline: 0), calls: ((callee: ^3))))) ; guid = 2904160244401423009
+^2 = gv: (name: "max", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 3, funcFlags: (readNone: 1, readOnly: 0, noRecurse: 1, returnDoesNotAlias: 0, noInline: 0, alwaysInline: 0)))) ; guid = 8185957744030711343
+^3 = gv: (name: "fact", summaries: (function: (module: ^0, flags: (linkage: internal, notEligibleToImport: 0, live: 0, dsoLocal: 1, canAutoHide: 0), insts: 27, funcFlags: (readNone: 1, readOnly: 0, noRecurse: 1, returnDoesNotAlias: 0, noInline: 0, alwaysInline: 0)))) ; guid = 17650377645318605574
diff --git a/llvm/test/Examples/ThinLtoJIT/minimal.test b/llvm/test/Examples/ThinLtoJIT/minimal.test
new file mode 100644
--- /dev/null
+++ b/llvm/test/Examples/ThinLtoJIT/minimal.test
@@ -0,0 +1,12 @@
+# RUN: llvm-as %S/Inputs/main.ll -o main.bc
+# RUN: llvm-as %S/Inputs/sub1.ll -o sub1.bc
+# RUN: llvm-as %S/Inputs/sub2.ll -o sub2.bc
+# RUN: llvm-as %S/Inputs/sub21.ll -o sub21.bc
+# RUN: llvm-as %S/Inputs/sub22.ll -o sub22.bc
+# RUN: llvm-as %S/Inputs/sub23.ll -o sub23.bc
+# RUN: llvm-as %S/Inputs/workload.ll -o workload.bc
+# RUN: llvm-lto --thinlto -o index main.bc sub1.bc sub2.bc sub21.bc sub22.bc sub23.bc workload.bc
+# RUN: ThinLtoJIT -print-stats index.thinlto.bc 2>&1 | FileCheck %s
+
+# CHECK: Modules submitted asynchronously: [[#ASYNC:]]
+# CHECK: Modules submitted synchronously: [[#6-ASYNC]]
diff --git a/llvm/test/Examples/lit.local.cfg b/llvm/test/Examples/lit.local.cfg
--- a/llvm/test/Examples/lit.local.cfg
+++ b/llvm/test/Examples/lit.local.cfg
@@ -1,2 +1,5 @@
 if not config.build_examples or sys.platform in ['win32']:
-  config.unsupported = True
\ No newline at end of file
+  config.unsupported = True
+
+# Test discovery should ignore subdirectories that contain auxiliary inputs.
+config.excludes = ['Inputs']