[Bug binutils/3276] New: Alignment error with static const variable in inline function

[jespdj at hotmail dot com]

I initially entered this bug in the GCC bug database, but the bug seems not to
be in GCC, but probably in binutils. See GCC bug 29249:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29249

The problem is this: I have a small C++ program that requires an int to be
aligned on a 16 byte boundary. When I compile and run this program with g++
version 4.1.1 and binutils version 2.17.50 on Cygwin, I get an alignment error
(the int is not aligned on a 16 byte boundary).

g++ outputs the correct assembler code, so the error must be in as or ld.

This is the source code:

// ----- begin source code
#include <stdio.h>

typedef int __attribute__ ((aligned (16))) aint;

inline void function() {
    static const aint x = 123;

    printf("sizeof(x) = %d, __alignof__(x) = %d\n", sizeof(x), __alignof__(x));
    unsigned long a = (unsigned long) &x;
    printf("Address of x: 0x%lX - %s\n", a, a & 15L ? "ALIGNMENT ERROR" : "ok");
}

int main() {
    function();
    return 0;
}
// ----- end source code

I compile this using the following command:
  g++ tst.cpp -o tst

The output when running the program is:
  Address of x: 0x40E3E8 - ALIGNMENT ERROR

I will attach the assembler code produced by GCC.

-- 
           Summary: Alignment error with static const variable in inline
                    function
           Product: binutils
           Version: 2.17
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: jespdj at hotmail dot com
                CC: bug-binutils at gnu dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=3276

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