7 files changed, 313 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-split/preserve-locals.ll b/llvm/test/tools/llvm-split/preserve-locals.ll
new file mode 100644
index 00000000000..7556c25bba3
--- /dev/null
+++ b/llvm/test/tools/llvm-split/preserve-locals.ll
@@ -0,0 +1,65 @@
+; RUN: llvm-split -preserve-locals -o %t %s
+; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK0 %s
+; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK1 %s
+
+; The local_var and local_func must not be separated.
+; CHECK0: @local_var
+; CHECK0: define internal fastcc void @local_func
+; The main and a must not be separated.
+; The main and local_func must not be together.
+; CHECK1: @a
+; CHECK1: define i32 @main
+; CHECK1: declare fastcc void @local_func
+
+@a = internal global i32 0, align 4
+@global_storage = common global i32 0, align 4
+@local_var = internal global i32 0, align 4
+
+; Function Attrs: nounwind
+define i32 @main(i32 %x) {
+entry:
+  %call = call fastcc i32 @foo(i32 %x, i32* nonnull @a)
+  %call1 = call fastcc i32 @baz(i32 %x)
+  %add = add nsw i32 %call, %call1
+  ret i32 %add
+}
+
+; Function Attrs: nounwind
+define fastcc i32 @bar(i32 %b) {
+entry:
+  %call = call fastcc i32 @baz(i32 %b)
+  ret i32 %call
+}
+
+; Function Attrs: nounwind
+define fastcc i32 @baz(i32 %x) {
+entry:
+  store i32 %x, i32* @global_storage, align 4
+  %shl = shl i32 %x, %x
+  ret i32 %shl
+}
+
+; Function Attrs: noinline nounwind
+define fastcc i32 @foo(i32 %a, i32* nocapture %b) {
+entry:
+  call fastcc void @local_func()
+  %call = call fastcc i32 @bar(i32 %a)
+  %0 = load i32, i32* @global_storage, align 4
+  %call1 = call fastcc i32 @baz(i32 %0)
+  %add = add nsw i32 %call, %call1
+  store i32 %add, i32* %b, align 4
+  %call.i = call fastcc i32 @baz(i32 %add) #2
+  %add.i = add nsw i32 %call.i, 2
+  %1 = load volatile i32, i32* @local_var, align 4
+  %add3 = add nsw i32 %add.i, %1
+  ret i32 %add3
+}
+
+; Function Attrs: noinline nounwind
+define internal fastcc void @local_func() section ".text" {
+entry:
+  %0 = load i32, i32* @global_storage, align 4
+  %call = call fastcc i32 @foo(i32 %0, i32* null)
+  store volatile i32 %call, i32* @local_var, align 4
+  ret void
+}
diff --git a/llvm/test/tools/llvm-split/scc-alias.ll b/llvm/test/tools/llvm-split/scc-alias.ll
new file mode 100644
index 00000000000..f8400bd2c87
--- /dev/null
+++ b/llvm/test/tools/llvm-split/scc-alias.ll
@@ -0,0 +1,48 @@
+; All of the functions in this module must end up
+; in the same partition without change of scope.
+; RUN: llvm-split -j=2 -preserve-locals -o %t %s
+; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK1 %s
+; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK0 %s
+
+; CHECK0: declare i32 @funInternal
+; CHECK0: declare i32 @funExternal
+; CHECK0: declare i32 @funInternal2
+; CHECK0: declare i32 @funExternal2
+
+; All functions are in the same file.
+; Local functions are still local.
+; CHECK1: define internal i32 @funInternal
+; CHECK1: define i32 @funExternal
+; CHECK1: define internal i32 @funInternal2
+; CHECK1: define i32 @funExternal2
+
+
+@funInternalAlias = internal alias i32 (), i32 ()* @funInternal
+
+define internal i32 @funInternal() {
+entry:
+  ret i32 0
+}
+
+; Direct call to local alias
+
+define i32 @funExternal() {
+entry:
+  %x = call i32 @funInternalAlias()
+  ret i32 %x
+}
+
+; Call to local function that calls local alias
+
+define internal i32 @funInternal2() {
+entry:
+  %x = call i32 @funInternalAlias()
+  ret i32 %x
+}
+
+define i32 @funExternal2() {
+entry:
+  %x = call i32 @funInternal2()
+  ret i32 %x
+}
+
diff --git a/llvm/test/tools/llvm-split/scc-callchain.ll b/llvm/test/tools/llvm-split/scc-callchain.ll
new file mode 100644
index 00000000000..953a0244ae7
--- /dev/null
+++ b/llvm/test/tools/llvm-split/scc-callchain.ll
@@ -0,0 +1,48 @@
+; All of the functions in this module must end up
+; in the same partition.
+
+; RUN: llvm-split -j=2 -preserve-locals -o %t %s
+; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK1 %s
+; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK0 %s
+
+; CHECK0: declare i32 @funInternal0
+; CHECK0: declare i32 @funInternal1
+; CHECK0: declare i32 @funInternal2
+; CHECK0: declare i32 @funExternal
+
+; All functions are in the same file.
+; Local functions are still local.
+; CHECK1: define internal i32 @funInternal0
+; CHECK1: define internal i32 @funInternal1
+; CHECK1: define internal i32 @funInternal2
+; CHECK1: define i32 @funExternal
+; CHECK1: define i32 @funExternal2
+
+define internal i32 @funInternal0() {
+entry:
+  ret i32 0
+}
+
+define internal i32 @funInternal1() {
+entry:
+  %x = call i32 @funInternal0()
+  ret i32 %x
+}
+
+define internal i32 @funInternal2() {
+entry:
+  %x = call i32 @funInternal1()
+  ret i32 %x
+}
+
+define i32 @funExternal() {
+entry:
+  %x = call i32 @funInternal2()
+  ret i32 %x
+}
+
+define i32 @funExternal2() {
+entry:
+  %x = call i32 @funInternal0()
+  ret i32 %x
+}
diff --git a/llvm/test/tools/llvm-split/scc-comdat.ll b/llvm/test/tools/llvm-split/scc-comdat.ll
new file mode 100644
index 00000000000..40fa930110b
--- /dev/null
+++ b/llvm/test/tools/llvm-split/scc-comdat.ll
@@ -0,0 +1,32 @@
+; All functions in the same comdat group must
+; be in the same module
+
+; RUN: llvm-split -j=2 -preserve-locals -o %t %s
+; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK1 %s
+; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK0 %s
+
+; CHECK0: declare i32 @fun1
+; CHECK0: declare i32 @fun2
+; CHECK0: declare i32 @fun3
+
+; CHECK1: define internal i32 @fun1
+; CHECK1: define internal i32 @fun2
+; CHECK1: define i32 @fun3
+
+$fun = comdat any
+
+define internal i32 @fun1() section ".text.funs" comdat($fun) {
+entry:
+  ret i32 0
+}
+
+define internal i32 @fun2() section ".text.funs" comdat($fun) {
+entry:
+  ret i32 0
+}
+
+define i32 @fun3() section ".text.funs" comdat($fun) {
+entry:
+  ret i32 0
+}
+
diff --git a/llvm/test/tools/llvm-split/scc-constants.ll b/llvm/test/tools/llvm-split/scc-constants.ll
new file mode 100644
index 00000000000..066a8dac6da
--- /dev/null
+++ b/llvm/test/tools/llvm-split/scc-constants.ll
@@ -0,0 +1,48 @@
+; All of the functions in this module must end up
+; in the same partition.
+
+; RUN: llvm-split -j=2 -preserve-locals -o %t %s
+; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK1 %s
+; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK0 %s
+
+; CHECK0: declare i32 @foo
+; CHECK0: declare i32 @baz
+; CHECK0: declare i32 @bar
+; CHECK0: declare i32 @bar2
+
+; CHECK1: @bla
+; CHECK1: @bla2
+; CHECK1: define internal i32 @foo
+; CHECK1: define internal i32 @baz
+; CHECK1: define i32 @bar
+; CHECK1: define i32 @bar2
+
+%struct.anon = type { i64, i64 }
+
+@bla = internal global %struct.anon { i64 1, i64 2 }, align 8
+@bla2 = internal global %struct.anon { i64 1, i64 2 }, align 8
+
+define internal i32 @foo() {
+entry:
+  store i64 5, i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla, i32 0, i32 0), align 8
+  store i32 -1, i32* bitcast (i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla2, i32 0, i32 1) to i32*), align 8
+  ret i32 0
+}
+
+define internal i32 @baz() {
+entry:
+  store i64 5, i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla, i32 0, i32 0), align 8
+  store i32 -1, i32* bitcast (i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla2, i32 0, i32 1) to i32*), align 8
+  ret i32 0
+}
+
+define i32 @bar() {
+  %call = call i32 @foo()
+  ret i32 0
+}
+
+define i32 @bar2() {
+  %call = call i32 @baz()
+  ret i32 0
+}
+
diff --git a/llvm/test/tools/llvm-split/scc-cycle.ll b/llvm/test/tools/llvm-split/scc-cycle.ll
new file mode 100644
index 00000000000..031fa9b0316
--- /dev/null
+++ b/llvm/test/tools/llvm-split/scc-cycle.ll
@@ -0,0 +1,44 @@
+; All of the functions in this module must end up
+; in the same partition.
+
+; Mutually recursive calls
+; RUN: llvm-split -j=2 -preserve-locals -o %t %s
+; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK1 %s
+; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK0 %s
+
+; CHECK0: declare i32 @funInternal0
+; CHECK0: declare i32 @funInternal1
+; CHECK0: declare i32 @funExternal0
+; CHECK0: declare i32 @funExternal1
+
+; CHECK1: define internal i32 @funInternal0
+; CHECK1: define internal i32 @funInternal1
+; CHECK1: define i32 @funExternal0
+; CHECK1: define i32 @funExternal1
+
+define internal i32 @funInternal0() {
+entry:
+  %x = call i32 @funInternal1()
+  ret i32 %x
+}
+
+define internal i32 @funInternal1() {
+entry:
+  %x = call i32 @funInternal0()
+  ret i32 %x
+}
+
+; Extrnal functions
+
+define i32 @funExternal0() {
+entry:
+  %x = call i32 @funInternal0()
+  ret i32 %x
+}
+
+define i32 @funExternal1() {
+entry:
+  %x = call i32 @funInternal1()
+  ret i32 %x
+}
+
diff --git a/llvm/test/tools/llvm-split/scc-global2global.ll b/llvm/test/tools/llvm-split/scc-global2global.ll
new file mode 100644
index 00000000000..95ff5357d5b
--- /dev/null
+++ b/llvm/test/tools/llvm-split/scc-global2global.ll
@@ -0,0 +1,28 @@
+; All of the functions and globals in this module must end up
+; in the same partition.
+
+; RUN: llvm-split -j=2 -preserve-locals -o %t %s
+; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK1 %s
+; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK0 %s
+
+; CHECK0: declare %struct.anon* @local0
+; CHECK0: declare i8** @local1
+
+; CHECK1: @bla
+; CHECK1: @ptr
+; CHECK1: define internal %struct.anon* @local0
+; CHECK1: define internal i8** @local1
+
+%struct.anon = type { i64, i64 }
+
+@bla = internal global %struct.anon { i64 1, i64 2 }, align 8
+@ptr = internal global i8* bitcast (%struct.anon* @bla to i8*), align 4
+
+define internal %struct.anon* @local0() {
+  ret %struct.anon* @bla
+}
+
+define internal i8** @local1() {
+  ret i8** @ptr
+}
+