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diff --git a/test/Integer/BitArith.ll b/test/Integer/BitArith.ll
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+; RUN: llvm-as %s -o - | llvm-dis > %t1.ll
+; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
+; RUN: diff %t1.ll %t2.ll
+
+
+declare void @"foo"(i31 %i, i63 %j, i10 %k)
+
+
+; foo test basic arith operations
+define void @"foo"(i31 %i, i63 %j, i10 %k)
+begin
+ %t1 = trunc i63 %j to i31
+ %t2 = add i31 %t1, %i
+ %t20 = add i31 3, %t1
+ %t3 = zext i31 %i to i63
+ %t4 = sub i63 %t3, %j
+ %t40 = sub i63 %j, -100
+ %t5 = mul i10 %k, 7
+ %t6 = sdiv i63 %j, -2
+ %t7 = udiv i63 %j, %t3
+ %t8 = urem i10 %k, 10
+ %t9 = srem i10 %k, -10
+ ret void
+end
+