File: absorption.ll

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llvm-toolchain-6.0 1%3A6.0.1-10
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; RUN: opt -S -reassociate < %s | FileCheck %s

; Check that if constants combine to an absorbing value then the expression is
; evaluated as the absorbing value.
define i8 @foo(i8 %x) {
  %tmp1 = or i8 %x, 127
  %tmp2 = or i8 %tmp1, 128
  ret i8 %tmp2
; CHECK-LABEL: @foo(
; CHECK: ret i8 -1
}