File: pr57554.ll

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llvm-toolchain-16 1%3A16.0.6-15~deb12u1
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s

@a = external dso_local local_unnamed_addr global i8, align 1

define void @PR57554() {
; CHECK-LABEL: PR57554:
; CHECK:       # %bb.0:
; CHECK-NEXT:    movb %al, a(%rip)
; CHECK-NEXT:    retq
  %.fr13 = freeze i8 undef
  %i = xor i8 %.fr13, -1
  %not = sext i8 %i to i32
  %add = add i32 %not, 2147483647
  %or = or i32 %add, -1794967296
  %or4 = or i32 %or, 0
  %not5 = xor i32 %or4, -1
  %sub = add nsw i32 0, -1
  %add7 = add nsw i32 %sub, %not5
  %add7.fr = freeze i32 %add7
  %i1 = trunc i32 %add7.fr to i8
  %conv10 = select i1 false, i8 0, i8 %i1
  store i8 %conv10, ptr @a, align 1
  ret void
}