1 files changed, 29 insertions, 0 deletions
diff --git a/test/Analysis/BasicAA/phi-aa.ll b/test/Analysis/BasicAA/phi-aa.ll
new file mode 100644
index 0000000..0288960
--- /dev/null
+++ b/test/Analysis/BasicAA/phi-aa.ll
@@ -0,0 +1,29 @@
+; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output |& grep {NoAlias:.*%P,.*@Z}
+; rdar://7282591
+
+@X = common global i32 0
+@Y = common global i32 0
+@Z = common global i32 0
+
+define void @foo(i32 %cond) nounwind ssp {
+entry:
+  %"alloca point" = bitcast i32 0 to i32
+  %tmp = icmp ne i32 %cond, 0
+  br i1 %tmp, label %bb, label %bb1
+
+bb:
+  br label %bb2
+
+bb1:
+  br label %bb2
+
+bb2:
+  %P = phi i32* [ @X, %bb ], [ @Y, %bb1 ]
+  %tmp1 = load i32* @Z, align 4
+  store i32 123, i32* %P, align 4
+  %tmp2 = load i32* @Z, align 4
+  br label %return
+
+return:
+  ret void
+}