[Bug c/53649] New: ICE when using 'C' x86 asm constraint

[svfuerst at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53649

             Bug #: 53649
           Summary: ICE when using 'C' x86 asm constraint
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: trivial
          Priority: P3
         Component: c
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: svfue...@gmail.com


The following prints:

internal compiler error: in ix86_print_operand, at config/i386/i386.c:14393

on x86_64, gcc version 4.7

void foo(void)
{
    asm (".asciz \"%0\""
        : : "C" ((unsigned __attribute__ ((vector_size (16)))){-1,-1,-1,-1}));
}