Due to a bug in BasicAA, DSE is incorrectly deleting the first store in
this testcase, causing the miscompilation of MallocBench/gs.
llvm-svn: 15315
diff --git a/llvm/test/Regression/Transforms/BasicAA/2004-07-28-MustAliasbug.llx b/llvm/test/Regression/Transforms/BasicAA/2004-07-28-MustAliasbug.llx
new file mode 100644
index 0000000..d1cf73b
--- /dev/null
+++ b/llvm/test/Regression/Transforms/BasicAA/2004-07-28-MustAliasbug.llx
@@ -0,0 +1,10 @@
+; RUN: llvm-as < %s | opt -dse | llvm-dis | grep 'store int 0'
+
+void %test({int,int }* %P) {
+ %Q = getelementptr {int,int}* %P, int 1
+ %X = getelementptr {int,int}* %Q, int 0, uint 1
+ %Y = getelementptr {int,int}* %Q, int 1, uint 1
+ store int 0, int* %X
+ store int 1, int* %Y
+ ret void
+}