These testcases check to see if we can promote malloc's to globals in some

cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16914 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 38 insertions, 0 deletions

diff --git a/test/Transforms/GlobalOpt/malloc-promote-1.llx b/test/Transforms/GlobalOpt/malloc-promote-1.llx
new file mode 100644
index 0000000000..423c51e937
--- /dev/null
+++ b/test/Transforms/GlobalOpt/malloc-promote-1.llx
@@ -0,0 +1,18 @@
+; RUN: llvm-as < %s | opt -globalopt | llvm-dis | not grep global
+
+%G = internal global int* null
+
+void %init() {
+	%P = malloc int
+	store int* %P, int** %G
+
+	%GV = load int** %G
+	store int 0, int* %GV
+	ret void
+}
+
+int %get() {
+	%GV = load int** %G
+	%V = load int* %GV
+	ret int %V
+}
diff --git a/test/Transforms/GlobalOpt/malloc-promote-2.llx b/test/Transforms/GlobalOpt/malloc-promote-2.llx
new file mode 100644
index 0000000000..f231963f57
--- /dev/null
+++ b/test/Transforms/GlobalOpt/malloc-promote-2.llx
@@ -0,0 +1,20 @@
+; RUN: llvm-as < %s | opt -globalopt | llvm-dis | not grep malloc
+
+%G = internal global int* null
+
+void %init() {
+	%P = malloc int, uint 100
+	store int* %P, int** %G
+
+	%GV = load int** %G
+	%GVe = getelementptr int* %GV, int 40
+	store int 20, int* %GVe
+	ret void
+}
+
+int %get() {
+	%GV = load int** %G
+	%GVe = getelementptr int* %GV, int 40
+	%V = load int* %GVe
+	ret int %V
+}