File: pr43772.c

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gcc-arm-none-eabi 15%3A12.2.rel1-1
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/* { dg-do compile } */
/* { dg-options "-Wlogical-op -Wtype-limits" } */
#include <limits.h>
long long
emacs_lseek (long long offset)
{
  return -1-9223372036854775807LL <= offset && offset <= 9223372036854775807LL;
}

long long
foo (long long offset)
{
  return -1-9223372036854775807LL > offset && offset > 9223372036854775807LL;
}

long long
foo3 (long long offset)
{
  return -1-9223372036854775807LL > offset && offset < 9223372036854775807LL;
}

long long
foo2 (long long offset)
{
  if (-1-9223372036854775807LL <= offset) return 0;
  if (offset <= 9223372036854775807LL) return 0;
  if (-1-9223372036854775807LL > offset) return 0;
  if (offset > 9223372036854775807LL) return 0;
  return 1;
}

# define BOT INT_MIN
# define TOP INT_MAX

long long get_intmax(void);
int get_int(void);
extern void do_something(void);
int main(void)
{
   int i = get_int();
   long long x = get_intmax();
   i = (i >  BOT   && i <  TOP);   //OK
   i = (i >= BOT+1 && i <= TOP-1); //OK
   i = (i >= BOT   && i <= TOP);   //Oops!
}