File: uninit-16.c

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gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
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/* { dg-do compile } */
/* { dg-options "-O2 -Wuninitialized" } */

int foo, bar;

static
void decode_reloc(int reloc, int *is_alt)
{
  if (reloc >= 20)
      *is_alt = 1;
  else if (reloc >= 10)
      *is_alt = 0;
}

void testfunc()
{
  int alt_reloc;

  decode_reloc(foo, &alt_reloc);

  if (alt_reloc) /* { dg-warning "may be used uninitialized" } */
    bar = 42;
}