File: 2008-02-14-BitMiscompile.ll

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llvm-toolchain-20 1%3A20.1.6-1~exp1
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i386-unknown-unknown | FileCheck %s

define i32 @test(i1 %A) {
; CHECK-LABEL: test:
; CHECK:       # %bb.0:
; CHECK-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    andl $1, %eax
; CHECK-NEXT:    negl %eax
; CHECK-NEXT:    movzbl %al, %eax
; CHECK-NEXT:    retl
  %B = zext i1 %A to i32
  %C = sub i32 0, %B
  %D = and i32 %C, 255
  ret i32 %D
}