[Bug target/95748] Long long function parameter should be aligned to 32 bit on x86.

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95748

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-cfl-2 tmp]$ cat x.c 
typedef __UINTPTR_TYPE__ uintptr_t;

__attribute__ ((noclone, noinline))
void
check (uintptr_t address, uintptr_t align)
{
  if (address & (align - 1))
    __builtin_abort();
}

__attribute__ ((noclone, noinline))
void
foo(uintptr_t x, long long p)
{
  uintptr_t align = __alignof__(p);
  uintptr_t address = (uintptr_t) &p;
  check (address, align);
}

__attribute__ ((noclone, noinline))
int
bar(void)
{
  foo (4,5);
  return 0;
}

int *ptr;

int
main()
{
  int x = 1;
  ptr = &x;
  return bar();
}
[hjl@gnu-cfl-2 tmp]$ gcc -m32 x.c -mpreferred-stack-boundary=2 -O2 
[hjl@gnu-cfl-2 tmp]$ ./a.out 
Aborted (core dumped)
[hjl@gnu-cfl-2 tmp]$