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      1 ; RUN: opt < %s -instcombine -S | FileCheck %s
      2 define i32 @foo(i32 %x, i32 %y) {
      3 ; CHECK-LABEL: @foo(
      4   %add = add nsw i32 %y, %x
      5   %mul = mul nsw i32 %add, %y
      6   %square = mul nsw i32 %y, %y
      7   %res = sub i32 %mul, %square
      8   ret i32 %res
      9 ; CHECK-NEXT: mul i32 %x, %y
     10 ; CHECK-NEXT: ret i32
     11 }
     12 
     13 define i1 @bar(i64 %x, i64 %y) {
     14 ; CHECK-LABEL: @bar(
     15   %a = and i64 %y, %x
     16 ; CHECK: and
     17 ; CHECK-NOT: and
     18   %not = xor i64 %a, -1
     19   %b = and i64 %y, %not
     20   %r = icmp eq i64 %b, 0
     21   ret i1 %r
     22 ; CHECK: ret i1
     23 }
     24