Check for cannonicalization of shl X, 1 -> add X, X

llvm-svn: 3670
diff --git a/llvm/test/Regression/Transforms/InstCombine/shift.ll b/llvm/test/Regression/Transforms/InstCombine/shift.ll
index dde01f5..c6a341f 100644
--- a/llvm/test/Regression/Transforms/InstCombine/shift.ll
+++ b/llvm/test/Regression/Transforms/InstCombine/shift.ll
@@ -33,3 +33,7 @@
 	ret uint %B
 }
 
+uint %test6(uint %A) {
+	%B = shl uint %A, ubyte 1   ;; convert to an add instruction
+	ret uint %B
+}