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      1 ; RUN: llc < %s -march=x86-64 | FileCheck %s
      2 
      3 define zeroext i16 @t1(i32 %on_off) nounwind {
      4 entry:
      5   %0 = sub i32 %on_off, 1
      6   %1 = mul i32 %0, 2
      7   %2 = trunc i32 %1 to i16
      8   %3 = zext i16 %2 to i32
      9   %4 = trunc i32 %3 to i16
     10 ; CHECK: lea
     11   ret i16 %4
     12 }
     13 
     14 define i32 @t2(i32 %on_off) nounwind {
     15 entry:
     16   %0 = sub i32 %on_off, 1
     17   %1 = mul i32 %0, 2
     18   %2 = and i32 %1, 65535
     19 ; CHECK: lea
     20   ret i32 %2
     21 }
     22