Re: c/3990: logical or | within inline assembly cuts off assembly code

Re: c/3990: logical or | within inline assembly cuts off assembly code

[jakub]

Synopsis: logical or | within inline assembly cuts off assembly code

State-Changed-From-To: open->closed
State-Changed-By: jakub
State-Changed-When: Tue Feb 19 06:47:41 2002
State-Changed-Why:
    Fixed by:
    2001-10-12  Jakub Jelinek  <jakub@redhat.com>
    
            * final.c (output_asm_insn): Make sure assembly dialects are
            terminated, not nested.  Output `|' and `}' characters if they
            don't appear inside assembly dialect selection.
            * config/i386/i386.md (rep_movdi_rex64, rep_movsi, rep_movsi_rex64,
            rep_movqi, rep_movqi_rex64, rep_stosdi_rex64, rep_stossi,
            rep_stossi_rex64, rep_stosqi, rep_stosqi_rex64, strsetsi_1,
            strsetsi_rex_1): Add {} braces.
    
    in gcc 3.1 CVS.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=3990

c/3990: logical or | within inline assembly cuts off assembly code

[jodaman]

>Number:         3990
>Category:       c
>Synopsis:       logical or | within inline assembly cuts off assembly code
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 10 16:56:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     jodaman@ee1.bradley.edu
>Release:        gcc version 3.0 (Debian)
>Organization:
>Environment:

>Description:
/* GCC 3.0 this to assembly, and behold the eaten code. */
/* (GCC 2.95.2 is not at all voracious with the '|' and */
/* all assembly that follows.) */
/* CodeSourcery's Online Test Compilation ( 2001-06-26) */
/* reveals that gcc 3.0.1 still consumes the code */

int
test()
{
  int o;
  __asm__
    (
     "movl $1, %%eax\n\t"
     "sall $(1 | 2), %%eax\n\t"
     "movl %%eax, %0\n\t"
     : "=a" (o)
     );
  return(o);
}

>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: