Re: Line number handling in RTL reorganization

[Paolo Carlini <pcarlini at unitus dot it>]

Jan Hubicka wrote:

> Hi,
> this patch implements the idea of replacing line numbers notes via locators
> placed directly in the insn RTLs.
This hunk, however, belongs to your align patch, I think...

Paolo.

> Index: config/i386/i386.md
> ===================================================================
> RCS file: /cvs/gcc/gcc/gcc/config/i386/i386.md,v
> retrieving revision 1.465
> diff -c -3 -p -r1.465 i386.md
> *** config/i386/i386.md	5 Jun 2003 00:23:21 -0000	1.465
> --- config/i386/i386.md	5 Jun 2003 10:05:20 -0000
> ***************
> *** 14289,14297 ****
>    ""
>  {
>  #ifdef ASM_OUTPUT_MAX_SKIP_ALIGN
> !   ASM_OUTPUT_MAX_SKIP_ALIGN (asm_out_file, 4, INTVAL (operands[0]));
>  #else
> !   ASM_OUTPUT_ALIGN (asm_out_file, 4);
>  #endif
>    return "";
>  }
> --- 14289,14300 ----
>    ""
>  {
>  #ifdef ASM_OUTPUT_MAX_SKIP_ALIGN
> !   ASM_OUTPUT_MAX_SKIP_ALIGN (asm_out_file, 4, (int)INTVAL (operands[0]));
>  #else
> !   /* It is tempting to use ASM_OUTPUT_ALIGN here, but we don't want to do that.
> !      The align insn is used to avoid 3 jump instructions in the row to improve
> !      branch prediction and the benefits hardly outweight the cost of extra 8
> !      nops on the average inserted by full alignment pseudo operation.  */
>  #endif
>    return "";
>  }