1 files changed, 28 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/phi-undef-loadstore.ll b/test/Transforms/SimplifyCFG/phi-undef-loadstore.ll
index 65d888e..028fb07 100644
--- a/test/Transforms/SimplifyCFG/phi-undef-loadstore.ll
+++ b/test/Transforms/SimplifyCFG/phi-undef-loadstore.ll
@@ -85,3 +85,31 @@ if.end7:                                          ; preds = %if.else, %if.then4,
 ; CHECK: if.end7:
 ; CHECK: phi i32* [ %a, %if.then ], [ null, %if.then4 ], [ null, %if.else ]
 }
+
+define i32 @test4(i32* %a, i32 %b, i32* %c, i32 %d) nounwind {
+entry:
+  %tobool = icmp eq i32 %b, 0
+  br i1 %tobool, label %if.else, label %if.then
+
+if.then:                                          ; preds = %entry
+  tail call void @bar() nounwind
+  br label %if.end7
+
+if.else:                                          ; preds = %entry
+  %tobool3 = icmp eq i32 %d, 0
+  br i1 %tobool3, label %if.end7, label %if.then4
+
+if.then4:                                         ; preds = %if.else
+  tail call void @bar() nounwind
+  br label %if.end7
+
+if.end7:                                          ; preds = %if.else, %if.then4, %if.then
+  %x.0 = phi i32* [ %a, %if.then ], [ null, %if.then4 ], [ null, %if.else ]
+  %gep = getelementptr i32* %x.0, i32 10
+  %tmp9 = load i32* %gep
+  %tmp10 = or i32 %tmp9, 1
+  store i32 %tmp10, i32* %gep
+  ret i32 %tmp9
+; CHECK: @test4
+; CHECK-NOT: phi
+}