File: subreg-to-reg-1.ll

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llvm-3.1 3.1-1
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; RUN: llc < %s -march=x86-64 | grep {leal	.*), %e.\*} | count 1

; Don't eliminate or coalesce away the explicit zero-extension!
; This is currently using an leal because of a 3-addressification detail,
; though this isn't necessary; The point of this test is to make sure
; a 32-bit add is used.

define i64 @foo(i64 %a) nounwind {
  %b = add i64 %a, 4294967295
  %c = and i64 %b, 4294967295
  %d = add i64 %c, 1
  ret i64 %d
}