Testcase for Revision 47478.

llvm-svn: 47531

llvm/test/Transforms/InstCombine/2008-02-23-MulSub.ll

@@ -0,0 +1,9 @@
+; RUN: llvm-as | opt -instcombine | llvm-dis | not grep mul
+
+define i26 @mul_283(i26 %a) nounwind  {
+entry:
+	%_add = mul i26 %a, 2885		; <i26> [#uses=1]
+	%_shl2 = mul i26 %a, 2884		; <i26> [#uses=1]
+	%_sub = sub i26 %_add, %_shl2		; <i26> [#uses=1]
+	ret i26 %_sub
+}