[Bug target/71114] [7 Regression] Several test suite failures on x86_64-apple-darwin* after revision r236090

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71114

--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Reduced test

#include <limits.h>

extern void abort(void);
extern void exit(int);

#define BITS 8

static unsigned long long const data[8] = {
  0x123456789abcdefULL,
  0x2468acf13579bdeULL,
  0x48d159e26af37bcULL,
  0x91a2b3c4d5e6f78ULL,
  0x123456789abcdef0ULL,
  0x2468acf13579bde0ULL,
  0x48d159e26af37bc0ULL,
  0x91a2b3c4d5e6f780ULL
};

static unsigned long long
variable_shift(unsigned long long x, int i)
{
  return x << i;
}

int
main()
{
  int i;

  for (i = 0; i < BITS; ++i)
    {
      unsigned long long y = variable_shift (data[0], i);
      if (y != data[i])
        abort ();
    }

  exit (0);
}

It succeeds if I replace '#define BITS 8' with '#define BITS 7'.