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diff --git a/test/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll b/test/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll
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--- /dev/null
+++ b/test/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll
@@ -0,0 +1,10 @@
+; RUN: opt < %s -instcombine -S | \
+; RUN: not grep undef
+
+define i32 @test(i8 %A) {
+ %B = sext i8 %A to i32 ; <i32> [#uses=1]
+ %C = ashr i32 %B, 8 ; <i32> [#uses=1]
+ ret i32 %C
+}
+
+