[Bug c/36049] New: m68k outputs bad assembly comment

[kendallc at vxitech dot com]

The m68k build outputs bad assembly code around an inline assembly block.
Compiling the attached file with gcc 4.3.0 and binutils 2.18 for
--target=m68k-unknown-uclinux-uclibc on --host=i486-linux-gnu, I get:

Error: junk at end of line, first unrecognized character is `|'

I won't attach the assembly generated by gcc...but I'll tell you that it
contains what looks like an attempted comment before and after the inline
assembly block. The apparent comment is prefixed by "|" instead of the usual
"#".

The ASM_COMMENT_START is #define'd as "|" for most of the m68k builds. I think
that this is wrong, at least for "linux" builds. ASM_COMMENT_START has been "|"
for a long time, but it seems that only recent gcc versions put comments around
__asm__() blocks.

A simple fix that worked for me was to change ASM_COMMENT_START to "#" in
gcc/config/m68k/linux.h. This might also be appropriate for other m68k
platforms.

I couldn't find any other bugs reporting this problem. This bug seems a little
too serious and a little too easy to fix, so maybe I'm missing something. My
apologies if that's the case.


-- 
           Summary: m68k outputs bad assembly comment
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kendallc at vxitech dot com
 GCC build triplet: i486-linux-gnu
  GCC host triplet: i486-linux-gnu
GCC target triplet: m68k-unknown-uclinux-uclibc


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36049