Re: c/3927: gcc 3.1 fails ifcvting inlined builtin_trap

Re: c/3927: gcc 3.1 fails ifcvting inlined builtin_trap

[rodrigc]

Synopsis: gcc 3.1 fails ifcvting inlined builtin_trap

State-Changed-From-To: open->feedback
State-Changed-By: rodrigc
State-Changed-When: Sat Dec  1 17:44:50 2001
State-Changed-Why:
    Error reproduced with gcc 3.1 20011201.
    
    Error does not occur with gcc 3.0.3, so this is a regression.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=3927&database=gcc

Re: c/3927: gcc 3.1 fails ifcvting inlined builtin_trap

[rodrigc]

The following reply was made to PR c/3927; it has been noted by GNATS.

From: rodrigc@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
  nobody@gcc.gnu.org, sac@toolsmith.com
Cc:  
Subject: Re: c/3927: gcc 3.1 fails ifcvting inlined builtin_trap
Date: 2 Dec 2001 01:44:50 -0000

 Synopsis: gcc 3.1 fails ifcvting inlined builtin_trap
 
 State-Changed-From-To: open->feedback
 State-Changed-By: rodrigc
 State-Changed-When: Sat Dec  1 17:44:50 2001
 State-Changed-Why:
     Error reproduced with gcc 3.1 20011201.
     
     Error does not occur with gcc 3.0.3, so this is a regression.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=3927&database=gcc

c/3927: gcc 3.1 fails ifcvting inlined builtin_trap

[sac]

>Number:         3927
>Category:       c
>Synopsis:       gcc 3.1 fails ifcvting inlined builtin_trap
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 03 10:16:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     sac@toolsmith.com
>Release:        3.1 20010803
>Organization:
>Environment:
Linux 2.4.6-ac5 #11 SMP Sun Jul 22 17:53:55 PDT 2001 i686 unknown
>Description:
static __inline__ halt (void)
{
    __builtin_trap ();
}

bar (int stop)
{
    if (stop)
	halt ();
    foo ();
}
->

bash-2.04$ ./cc1 -O2 c.c
 halt bar
c.c: In function `bar':
c.c:11: In basic block 0:

c.c:11: Flow control insn inside a basic block
(barrier/i 16 13 19)
c.c:11: confused by earlier errors, bailing out
bash-2.04$ 

>How-To-Repeat:

>Fix:

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