diff --git a/hpvm/test/unitTests/ThreeLevel.ll b/hpvm/test/unitTests/ThreeLevel.ll
new file mode 100644
index 0000000000000000000000000000000000000000..d8bf050234264e55be6af269e40ab5f2ef36a03b
--- /dev/null
+++ b/hpvm/test/unitTests/ThreeLevel.ll
@@ -0,0 +1,137 @@
+; RUN: opt - load LLVMGenHPVM.so -S -genhpvm < %s
+; ModuleID = 'TwoLevel.c'
+source_filename = "TwoLevel.c"
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+%struct.Root = type { i32*, i64, i32*, i64, i32*, i64 }
+
+; Function Attrs: nounwind uwtable
+define dso_local void @Func1(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #3
+  tail call void (i32, ...) @__hpvm__attributes(i32 1, i32* %In, i32* %Out, i32 1, i32* %Out) #3
+  %0 = load i32, i32* %In, align 4, !tbaa !2
+  store i32 %0, i32* %Out, align 4, !tbaa !2
+  tail call void (i32, ...) @__hpvm__return(i32 1, i32* %Out) #3
+  ret void
+}
+
+declare dso_local void @__hpvm__hint(i32) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__attributes(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__return(i32, ...) local_unnamed_addr #1
+
+; Function Attrs: nounwind uwtable
+define dso_local void @Func2(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #3
+  tail call void (i32, ...) @__hpvm__attributes(i32 2, i32* %In, i32* %Out, i32 1, i32* %Out) #3
+  %call = tail call i8* (i32, ...) @__hpvm__createNodeND(i32 1, void (i32*, i64, i32*, i64)* nonnull @Func1, i64 3) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 0, i32 0, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 1, i32 1, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 2, i32 2, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 3, i32 3, i32 0) #3
+  tail call void @__hpvm__bindOut(i8* %call, i32 0, i32 0, i32 0) #3
+  ret void
+}
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #2
+
+declare dso_local i8* @__hpvm__createNodeND(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__bindIn(i8*, i32, i32, i32) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__bindOut(i8*, i32, i32, i32) local_unnamed_addr #1
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #2
+
+; Function Attrs: nounwind uwtable
+define dso_local void @PipeRoot(i32* %In1, i64 %Insize1, i32* %In2, i64 %InSize2, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #3
+  tail call void (i32, ...) @__hpvm__attributes(i32 3, i32* %In1, i32* %In2, i32* %Out, i32 1, i32* %Out) #3
+  %call = tail call i8* (i32, ...) @__hpvm__createNodeND(i32 0, void (i32*, i64, i32*, i64)* nonnull @Func2) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 0, i32 0, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 1, i32 1, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 2, i32 2, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 3, i32 3, i32 0) #3
+  tail call void @__hpvm__bindOut(i8* %call, i32 0, i32 0, i32 0) #3
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define dso_local i32 @main() local_unnamed_addr #0 {
+entry:
+  %In1 = alloca i32, align 4
+  %In2 = alloca i32, align 4
+  %Out = alloca i32, align 4
+  %RootArgs = alloca %struct.Root, align 8
+  %0 = bitcast i32* %In1 to i8*
+  call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %0) #3
+  store i32 1, i32* %In1, align 4, !tbaa !2
+  %1 = bitcast i32* %In2 to i8*
+  call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %1) #3
+  store i32 2, i32* %In2, align 4, !tbaa !2
+  %2 = bitcast i32* %Out to i8*
+  call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %2) #3
+  store i32 0, i32* %Out, align 4, !tbaa !2
+  %3 = bitcast %struct.Root* %RootArgs to i8*
+  call void @llvm.lifetime.start.p0i8(i64 48, i8* nonnull %3) #3
+  %input1 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 0
+  store i32* %In1, i32** %input1, align 8, !tbaa !6
+  %Insize1 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 1
+  store i64 32, i64* %Insize1, align 8, !tbaa !10
+  %input2 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 2
+  store i32* %In2, i32** %input2, align 8, !tbaa !11
+  %Insize2 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 3
+  store i64 32, i64* %Insize2, align 8, !tbaa !12
+  %output = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 4
+  store i32* %Out, i32** %output, align 8, !tbaa !13
+  %Outsize = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 5
+  store i64 32, i64* %Outsize, align 8, !tbaa !14
+  call void (...) @__hpvm__init() #3
+  %call = call i8* (i32, ...) @__hpvm__launch(i32 0, void (i32*, i64, i32*, i64, i32*, i64)* nonnull @PipeRoot, %struct.Root* nonnull %RootArgs) #3
+  call void @__hpvm__wait(i8* %call) #3
+  call void (...) @__hpvm__cleanup() #3
+  call void @llvm.lifetime.end.p0i8(i64 48, i8* nonnull %3) #3
+  call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %2) #3
+  call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %1) #3
+  call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %0) #3
+  ret i32 0
+}
+
+declare dso_local void @__hpvm__init(...) local_unnamed_addr #1
+
+declare dso_local i8* @__hpvm__launch(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__wait(i8*) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__cleanup(...) local_unnamed_addr #1
+
+attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #2 = { argmemonly nounwind }
+attributes #3 = { nounwind }
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 9.0.0 (https://gitlab.engr.illinois.edu/llvm/hpvm.git 3551132592a00cab6c966df508ab511598269f78)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!7, !8, i64 0}
+!7 = !{!"Root", !8, i64 0, !9, i64 8, !8, i64 16, !9, i64 24, !8, i64 32, !9, i64 40}
+!8 = !{!"any pointer", !4, i64 0}
+!9 = !{!"long", !4, i64 0}
+!10 = !{!7, !9, i64 8}
+!11 = !{!7, !8, i64 16}
+!12 = !{!7, !9, i64 24}
+!13 = !{!7, !8, i64 32}
+!14 = !{!7, !9, i64 40}
diff --git a/hpvm/test/unitTests/ThreeLevel.opt.ll b/hpvm/test/unitTests/ThreeLevel.opt.ll
new file mode 100644
index 0000000000000000000000000000000000000000..b1c1ee7304950629592ed67edb08c1c15e083dd6
--- /dev/null
+++ b/hpvm/test/unitTests/ThreeLevel.opt.ll
@@ -0,0 +1,165 @@
+; RUN: opt -load LLVMGenHPVM.so -S -genhpvm < %s
+; ModuleID = 'ThreeLevel.opt.c'
+source_filename = "ThreeLevel.opt.c"
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+%struct.Root = type { i32*, i64, i32*, i64 }
+
+; Function Attrs: nounwind uwtable
+define dso_local void @Func1(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 2) #5
+  tail call void (i32, ...) @__hpvm__attributes(i32 2, i32* %In, i32* %Out, i32 1, i32* %Out) #5
+  %call = tail call i8* (...) @__hpvm__getNode() #5
+  %call1 = tail call i8* @__hpvm__getParentNode(i8* %call) #5
+  %call2 = tail call i64 @__hpvm__getNodeInstanceID_x(i8* %call) #5
+  %call3 = tail call i64 @__hpvm__getNodeInstanceID_y(i8* %call) #5
+  %call5 = tail call i64 @__hpvm__getNodeInstanceID_x(i8* %call1) #5
+  %call7 = tail call i64 @__hpvm__getNodeInstanceID_y(i8* %call1) #5
+  %call9 = tail call i64 @__hpvm__getNumNodeInstances_x(i8* %call) #5
+  %call11 = tail call i64 @__hpvm__getNumNodeInstances_y(i8* %call) #5
+  %mul = mul i64 %call9, %call5
+  %add = add i64 %mul, %call2
+  %arrayidx = getelementptr inbounds i32, i32* %In, i64 3
+  %0 = load i32, i32* %arrayidx, align 4, !tbaa !2
+  %sext = shl i64 %add, 32
+  %idxprom = ashr exact i64 %sext, 32
+  %arrayidx15 = getelementptr inbounds i32, i32* %Out, i64 %idxprom
+  %1 = load i32, i32* %arrayidx15, align 4, !tbaa !2
+  %add16 = add nsw i32 %1, %0
+  store i32 %add16, i32* %arrayidx15, align 4, !tbaa !2
+  ret void
+}
+
+declare dso_local void @__hpvm__hint(i32) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__attributes(i32, ...) local_unnamed_addr #1
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #2
+
+declare dso_local i8* @__hpvm__getNode(...) local_unnamed_addr #1
+
+declare dso_local i8* @__hpvm__getParentNode(i8*) local_unnamed_addr #1
+
+declare dso_local i64 @__hpvm__getNodeInstanceID_x(i8*) local_unnamed_addr #1
+
+declare dso_local i64 @__hpvm__getNodeInstanceID_y(i8*) local_unnamed_addr #1
+
+declare dso_local i64 @__hpvm__getNumNodeInstances_x(i8*) local_unnamed_addr #1
+
+declare dso_local i64 @__hpvm__getNumNodeInstances_y(i8*) local_unnamed_addr #1
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #2
+
+; Function Attrs: nounwind uwtable
+define dso_local void @Func3(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #5
+  tail call void (i32, ...) @__hpvm__attributes(i32 2, i32* %In, i32* %Out, i32 1, i32* %Out) #5
+  %call = tail call i8* (i32, ...) @__hpvm__createNodeND(i32 2, void (i32*, i64, i32*, i64)* nonnull @Func1, i64 3, i64 5) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 0, i32 0, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 1, i32 1, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 2, i32 2, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 3, i32 3, i32 0) #5
+  ret void
+}
+
+declare dso_local i8* @__hpvm__createNodeND(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__bindIn(i8*, i32, i32, i32) local_unnamed_addr #1
+
+; Function Attrs: nounwind uwtable
+define dso_local void @Func2(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #5
+  tail call void (i32, ...) @__hpvm__attributes(i32 2, i32* %In, i32* %Out, i32 1, i32* %Out) #5
+  %call = tail call i8* (i32, ...) @__hpvm__createNodeND(i32 2, void (i32*, i64, i32*, i64)* nonnull @Func3, i64 3, i64 5) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 0, i32 0, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 1, i32 1, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 2, i32 2, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 3, i32 3, i32 0) #5
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define dso_local void @PipeRoot(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #5
+  tail call void (i32, ...) @__hpvm__attributes(i32 2, i32* %In, i32* %Out, i32 1, i32* %Out) #5
+  %call = tail call i8* (i32, ...) @__hpvm__createNodeND(i32 0, void (i32*, i64, i32*, i64)* nonnull @Func2) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 0, i32 0, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 1, i32 1, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 2, i32 2, i32 0) #5
+  tail call void @__hpvm__bindIn(i8* %call, i32 3, i32 3, i32 0) #5
+  ret void
+}
+
+; Function Attrs: noinline nounwind uwtable
+define dso_local void @Launch() local_unnamed_addr #3 {
+entry:
+  %RootArgs = alloca %struct.Root, align 8
+  %0 = bitcast %struct.Root* %RootArgs to i8*
+  call void @llvm.lifetime.start.p0i8(i64 32, i8* nonnull %0) #5
+  %call = tail call noalias i8* @malloc(i64 1024) #5
+  %1 = bitcast %struct.Root* %RootArgs to i8**
+  store i8* %call, i8** %1, align 8, !tbaa !6
+  %Insize = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 1
+  store i64 1024, i64* %Insize, align 8, !tbaa !10
+  %output = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 2
+  %call1 = tail call noalias i8* @malloc(i64 1024) #5
+  %2 = bitcast i32** %output to i8**
+  store i8* %call1, i8** %2, align 8, !tbaa !11
+  %Outsize = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 3
+  store i64 1024, i64* %Outsize, align 8, !tbaa !12
+  %call2 = call i8* (i32, ...) @__hpvm__launch(i32 0, void (i32*, i64, i32*, i64)* nonnull @PipeRoot, %struct.Root* nonnull %RootArgs) #5
+  call void @__hpvm__wait(i8* %call2) #5
+  call void @llvm.lifetime.end.p0i8(i64 32, i8* nonnull %0) #5
+  ret void
+}
+
+; Function Attrs: nofree nounwind
+declare dso_local noalias i8* @malloc(i64) local_unnamed_addr #4
+
+declare dso_local i8* @__hpvm__launch(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__wait(i8*) local_unnamed_addr #1
+
+; Function Attrs: nounwind uwtable
+define dso_local i32 @main() local_unnamed_addr #0 {
+entry:
+  tail call void (...) @__hpvm__init() #5
+  tail call void @Launch()
+  tail call void (...) @__hpvm__cleanup() #5
+  ret i32 0
+}
+
+declare dso_local void @__hpvm__init(...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__cleanup(...) local_unnamed_addr #1
+
+attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #2 = { argmemonly nounwind }
+attributes #3 = { noinline nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #4 = { nofree nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #5 = { nounwind }
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 9.0.0 (https://gitlab.engr.illinois.edu/llvm/hpvm.git 3551132592a00cab6c966df508ab511598269f78)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!7, !8, i64 0}
+!7 = !{!"Root", !8, i64 0, !9, i64 8, !8, i64 16, !9, i64 24}
+!8 = !{!"any pointer", !4, i64 0}
+!9 = !{!"long", !4, i64 0}
+!10 = !{!7, !9, i64 8}
+!11 = !{!7, !8, i64 16}
+!12 = !{!7, !9, i64 24}
diff --git a/hpvm/test/unitTests/TwoLevel.ll b/hpvm/test/unitTests/TwoLevel.ll
new file mode 100644
index 0000000000000000000000000000000000000000..0289319517b7d6a1f83f7b64d615bcbd72630821
--- /dev/null
+++ b/hpvm/test/unitTests/TwoLevel.ll
@@ -0,0 +1,137 @@
+; RUN: opt -load LLVMGenHPVM.so -S -genhpvm < %s
+; ModuleID = 'TwoLevel.c'
+source_filename = "TwoLevel.c"
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+%struct.Root = type { i32*, i64, i32*, i64, i32*, i64 }
+
+; Function Attrs: nounwind uwtable
+define dso_local void @Func1(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #3
+  tail call void (i32, ...) @__hpvm__attributes(i32 1, i32* %In, i32* %Out, i32 1, i32* %Out) #3
+  %0 = load i32, i32* %In, align 4, !tbaa !2
+  store i32 %0, i32* %Out, align 4, !tbaa !2
+  tail call void (i32, ...) @__hpvm__return(i32 1, i32* %Out) #3
+  ret void
+}
+
+declare dso_local void @__hpvm__hint(i32) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__attributes(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__return(i32, ...) local_unnamed_addr #1
+
+; Function Attrs: nounwind uwtable
+define dso_local void @Func2(i32* %In, i64 %Insize, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #3
+  tail call void (i32, ...) @__hpvm__attributes(i32 2, i32* %In, i32* %Out, i32 1, i32* %Out) #3
+  %call = tail call i8* (i32, ...) @__hpvm__createNodeND(i32 1, void (i32*, i64, i32*, i64)* nonnull @Func1, i64 3) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 0, i32 0, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 1, i32 1, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 2, i32 2, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 3, i32 3, i32 0) #3
+  tail call void @__hpvm__bindOut(i8* %call, i32 0, i32 0, i32 0) #3
+  ret void
+}
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #2
+
+declare dso_local i8* @__hpvm__createNodeND(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__bindIn(i8*, i32, i32, i32) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__bindOut(i8*, i32, i32, i32) local_unnamed_addr #1
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #2
+
+; Function Attrs: nounwind uwtable
+define dso_local void @PipeRoot(i32* %In1, i64 %Insize1, i32* %In2, i64 %InSize2, i32* %Out, i64 %Outsize) #0 {
+entry:
+  tail call void @__hpvm__hint(i32 1) #3
+  tail call void (i32, ...) @__hpvm__attributes(i32 3, i32* %In1, i32* %In2, i32* %Out, i32 1, i32* %Out) #3
+  %call = tail call i8* (i32, ...) @__hpvm__createNodeND(i32 0, void (i32*, i64, i32*, i64)* nonnull @Func2) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 0, i32 0, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 1, i32 1, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 2, i32 2, i32 0) #3
+  tail call void @__hpvm__bindIn(i8* %call, i32 3, i32 3, i32 0) #3
+  tail call void @__hpvm__bindOut(i8* %call, i32 0, i32 0, i32 0) #3
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define dso_local i32 @main() local_unnamed_addr #0 {
+entry:
+  %In1 = alloca i32, align 4
+  %In2 = alloca i32, align 4
+  %Out = alloca i32, align 4
+  %RootArgs = alloca %struct.Root, align 8
+  %0 = bitcast i32* %In1 to i8*
+  call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %0) #3
+  store i32 1, i32* %In1, align 4, !tbaa !2
+  %1 = bitcast i32* %In2 to i8*
+  call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %1) #3
+  store i32 2, i32* %In2, align 4, !tbaa !2
+  %2 = bitcast i32* %Out to i8*
+  call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %2) #3
+  store i32 0, i32* %Out, align 4, !tbaa !2
+  %3 = bitcast %struct.Root* %RootArgs to i8*
+  call void @llvm.lifetime.start.p0i8(i64 48, i8* nonnull %3) #3
+  %input1 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 0
+  store i32* %In1, i32** %input1, align 8, !tbaa !6
+  %Insize1 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 1
+  store i64 32, i64* %Insize1, align 8, !tbaa !10
+  %input2 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 2
+  store i32* %In2, i32** %input2, align 8, !tbaa !11
+  %Insize2 = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 3
+  store i64 32, i64* %Insize2, align 8, !tbaa !12
+  %output = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 4
+  store i32* %Out, i32** %output, align 8, !tbaa !13
+  %Outsize = getelementptr inbounds %struct.Root, %struct.Root* %RootArgs, i64 0, i32 5
+  store i64 32, i64* %Outsize, align 8, !tbaa !14
+  call void (...) @__hpvm__init() #3
+  %call = call i8* (i32, ...) @__hpvm__launch(i32 0, void (i32*, i64, i32*, i64, i32*, i64)* nonnull @PipeRoot, %struct.Root* nonnull %RootArgs) #3
+  call void @__hpvm__wait(i8* %call) #3
+  call void (...) @__hpvm__cleanup() #3
+  call void @llvm.lifetime.end.p0i8(i64 48, i8* nonnull %3) #3
+  call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %2) #3
+  call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %1) #3
+  call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %0) #3
+  ret i32 0
+}
+
+declare dso_local void @__hpvm__init(...) local_unnamed_addr #1
+
+declare dso_local i8* @__hpvm__launch(i32, ...) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__wait(i8*) local_unnamed_addr #1
+
+declare dso_local void @__hpvm__cleanup(...) local_unnamed_addr #1
+
+attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #2 = { argmemonly nounwind }
+attributes #3 = { nounwind }
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 9.0.0 (https://gitlab.engr.illinois.edu/llvm/hpvm.git 3551132592a00cab6c966df508ab511598269f78)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!7, !8, i64 0}
+!7 = !{!"Root", !8, i64 0, !9, i64 8, !8, i64 16, !9, i64 24, !8, i64 32, !9, i64 40}
+!8 = !{!"any pointer", !4, i64 0}
+!9 = !{!"long", !4, i64 0}
+!10 = !{!7, !9, i64 8}
+!11 = !{!7, !8, i64 16}
+!12 = !{!7, !9, i64 24}
+!13 = !{!7, !8, i64 32}
+!14 = !{!7, !9, i64 40}