[Bug c/13232] New: ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[Bug c/13232] New: ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[coyote at coyotegulch dot com]

The attached program generates an ICE, as follows:

scott@Tycho$ gcc -c -std=gnu99 -O3 -march=pentium4 -fnew-ra gcc-ice3.c
gcc-ice3.c: In function `planetpv':
 
gcc-ice3.c:29: internal compiler error: in subst_stack_regs_pat, at reg-stack.c:1580

Note comments in gcc-ice3.c. Initializing "k" elimintaes the ICE, as does
rewriting the loop from an infinite while to a do... while.

-- 
           Summary: ICE in remember_web_was_spilled with -O3 -march=pentium4
                    -fnew-ra
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: coyote at coyotegulch dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux
  GCC host triplet: i686-pc-linux
GCC target triplet: i686-pc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13232

[Bug c/13232] ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[coyote at coyotegulch dot com]

------- Additional Comments From coyote at coyotegulch dot com  2003-11-29 15:14 -------
Created an attachment (id=5232)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5232&action=view)
Porgram to generate the ICE

Admittedly, the troublesome loop is poorly written, although the code is valid
in syntax. This example is severely reduced from a hundred-line function, so
the code itself is completely meaningless. This was the minimal example I could
find, and it includes commented-out variations that eliminate the ICE.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13232

[Bug optimization/13232] ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |matz at suse dot de
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
          Component|c                           |optimization
           Keywords|                            |ice-on-valid-code
            Summary|ICE in                      |ICE in
                   |remember_web_was_spilled    |remember_web_was_spilled
                   |with -O3 -march=pentium4 -  |with -O3 -march=pentium4 -
                   |fnew-ra                     |fnew-ra


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13232

[Bug optimization/13232] ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |13246
              nThis|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13232

[Bug optimization/13232] ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13232

[Bug optimization/13232] [new-ra] ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[1319 at bot dot ru]

------- Additional Comments From 1319 at bot dot ru  2004-03-24 08:05 -------
I cannot reproduce this bug neither with current new RA nor current 3.4.0,
probably because of #include's in testcase.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13232

[Bug optimization/13232] [new-ra] ICE in remember_web_was_spilled with -O3 -march=pentium4 -fnew-ra

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-24 15:53 -------
So closing as fixed, the problem is most likely caused either by glibc's headers or is already fixed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|SUSPENDED                   |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13232