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diff --git a/test/Transforms/InstCombine/2002-12-05-MissedConstProp.ll b/test/Transforms/InstCombine/2002-12-05-MissedConstProp.ll
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+++ b/test/Transforms/InstCombine/2002-12-05-MissedConstProp.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep add
+
+define i32 @test(i32 %A) {
+ %A.neg = sub i32 0, %A ; <i32> [#uses=1]
+ %.neg = sub i32 0, 1 ; <i32> [#uses=1]
+ %X = add i32 %.neg, 1 ; <i32> [#uses=1]
+ %Y.neg.ra = add i32 %A, %X ; <i32> [#uses=1]
+ %r = add i32 %A.neg, %Y.neg.ra ; <i32> [#uses=1]
+ ret i32 %r
+}
+