[Bug middle-end/51784] [4.7 Regression] FAIL: gcc.dg/tree-prof/pr44777.c execution, -fprofile-generate -D_PROFILE_GENERATE

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51784

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-11 08:20:27 UTC ---
(In reply to comment #8)
> The main difference between r182587 and r182980 with -m32 is
> 
> @@ -50,18 +50,26 @@ L3:
>      movl    4(%eax), %esp
>      jmp    *%edx
>  L2:
> +    leal    ___gcov0_y.1704-L00000000001$pb(%ebx), %eax
> +    movl    28(%eax), %edx
> +    movl    24(%eax), %eax
> +    addl    $1, %eax
> +    adcl    $0, %edx
> +    leal    ___gcov0_y.1704-L00000000001$pb(%ebx), %esi
> +    movl    %eax, 24(%esi)
> +    movl    %edx, 28(%esi)
>      movl    8(%ebp), %eax
>      subl    $1, %eax
>      movl    %eax, (%esp)
>      call    _y.1704
>      leal    ___gcov0_y.1704-L00000000001$pb(%ebx), %eax
> -    movl    28(%eax), %edx
> -    movl    24(%eax), %eax
> +    movl    36(%eax), %edx
> +    movl    32(%eax), %eax
>      addl    $1, %eax
>      adcl    $0, %edx
>      leal    ___gcov0_y.1704-L00000000001$pb(%ebx), %ecx
> -    movl    %eax, 24(%ecx)
> -    movl    %edx, 28(%ecx)
> +    movl    %eax, 32(%ecx)
> +    movl    %edx, 36(%ecx)
>      leal    -8(%ebp), %esp
>      popl    %ebx
>  LCFI3:

There is no bug in that, we record one more counter starting with 182920, but
there is also the additional space reserved for it in the array.