On Mon, May 28, 2018 at 08:50:46AM +0200, Mark Wielaard wrote:
> gcc/
>
> * dwarf2asm.c (dw2_asm_output_delta_uleb128): Add brackets around
> lab2 if it is an expression containing a minus sign.
Ok, thanks.
> diff --git a/gcc/dwarf2asm.c b/gcc/dwarf2asm.c
> index 93577d1..62a1da9 100644
> --- a/gcc/dwarf2asm.c
> +++ b/gcc/dwarf2asm.c
> @@ -811,7 +811,17 @@ dw2_asm_output_delta_uleb128 (const char *lab1
> ATTRIBUTE_UNUSED,
> fputs ("\t.uleb128 ", asm_out_file);
> assemble_name (asm_out_file, lab1);
> putc ('-', asm_out_file);
> - assemble_name (asm_out_file, lab2);
> + /* dwarf2out.c might give us an label expression (e.g. .LVL548-1)
> + as second argument. If so, make it a subexpression, to make
> + sure the substraction is done in the right order. */
> + if (strchr (lab2, '-') != NULL)
> + {
> + putc ('(', asm_out_file);
> + assemble_name (asm_out_file, lab2);
> + putc (')', asm_out_file);
> + }
> + else
> + assemble_name (asm_out_file, lab2);
>
> if (flag_debug_asm && comment)
> {
Jakub
