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      1 ; RUN: llc < %s -march=x86-64 | grep movzbl | count 2
      2 
      3 ; Use movzbl to avoid partial-register updates.
      4 
      5 define i32 @foo(i32 %p, i8 zeroext %x) nounwind {
      6   %q = trunc i32 %p to i8
      7   %r = udiv i8 %q, %x
      8   %s = zext i8 %r to i32
      9   %t = and i32 %s, 1
     10   ret i32 %t
     11 }
     12 define i32 @bar(i32 %p, i16 zeroext %x) nounwind {
     13   %q = trunc i32 %p to i16
     14   %r = udiv i16 %q, %x
     15   %s = zext i16 %r to i32
     16   %t = and i32 %s, 1
     17   ret i32 %t
     18 }
     19