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diff --git a/test/Analysis/LoadVN/RLE-Preserve-Volatile.ll b/test/Analysis/LoadVN/RLE-Preserve-Volatile.ll
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+
+; RUN: llvm-upgrade < %s | llvm-as | opt -load-vn -gcse -instcombine | llvm-dis | grep sub
+
+int %test(int* %P) {
+ %X = volatile load int* %P
+ %Y = volatile load int* %P
+ %Z = sub int %X, %Y
+ ret int %Z
+}