New testcase for missed case

llvm-svn: 12199

1 files changed, 17 insertions, 0 deletions

diff --git a/llvm/test/Regression/Transforms/ArgumentPromotion/chained.ll b/llvm/test/Regression/Transforms/ArgumentPromotion/chained.ll
new file mode 100644
index 00000000000..3adfbf9d849
--- /dev/null
+++ b/llvm/test/Regression/Transforms/ArgumentPromotion/chained.ll
@@ -0,0 +1,17 @@
+; RUN: llvm-as < %s | opt -argpromotion -instcombine | llvm-dis | not grep load
+
+%G1 = constant int 0
+%G2 = constant int* %G1
+
+implementation
+
+internal int %test(int **%X) {
+	%Y = load int** %X
+	%X = load int* %Y
+	ret int %X
+}
+
+int %caller(int** %P) {
+	%X = call int %test(int** %G2)
+	ret int %X
+}