[Bug tree-optimization/42366] New: ICE in ipa_write_node_info, at ipa-prop.c:2023

[Bug tree-optimization/42366] New: ICE in ipa_write_node_info, at ipa-prop.c:2023

[rguenth at gcc dot gnu dot org]

static int
f0 (char *s0, char *s1)
{
  return __builtin_strlen (s0) > __builtin_strlen (s1);
}

int
f1 (char *s, int j)
{
  if (f0 (s, ""))
    return 1;
  return j;
}

void
f2 (char *s)
{
  f1 (s, 0);
}

fails with -O1 -fipa-cp -flto:

> ./cc1 -quiet -O1 -fipa-cp -flto t.i
t.i:23:1: internal compiler error: in ipa_write_node_info, at ipa-prop.c:2023
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ICE in ipa_write_node_info, at ipa-prop.c:2023
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, lto
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42366

[Bug tree-optimization/42366] ICE in ipa_write_node_info, at ipa-prop.c:2023

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-12-14 13:15 -------
This is btw the topmost ICE that appears when you run all of the testsuite
with -flto.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42366

[Bug tree-optimization/42366] ICE in ipa_write_node_info, at ipa-prop.c:2023

[jamborm at gcc dot gnu dot org]

------- Comment #2 from jamborm at gcc dot gnu dot org  2009-12-21 17:55 -------
This happens because IPA-CP (as opposed to indirect inlining) does not
perform parameter modification analysis but the associated streaming
(which is shared in between the two) code assumes it has been done.  I
will prepare a patch to address this shortly.


-- 

jamborm at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jamborm at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-12-21 17:55:01
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42366

[Bug tree-optimization/42366] ICE in ipa_write_node_info, at ipa-prop.c:2023

[jamborm at gcc dot gnu dot org]

------- Comment #3 from jamborm at gcc dot gnu dot org  2009-12-22 19:05 -------
Patch posted to the mailing list:
http://gcc.gnu.org/ml/gcc-patches/2009-12/msg01040.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42366

[Bug tree-optimization/42366] ICE in ipa_write_node_info, at ipa-prop.c:2023

[jamborm at gcc dot gnu dot org]

------- Comment #4 from jamborm at gcc dot gnu dot org  2010-01-04 18:19 -------
Subject: Bug 42366

Author: jamborm
Date: Mon Jan  4 18:18:54 2010
New Revision: 155630

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155630
Log:
2010-01-04  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42366
        * ipa-cp.c (ipcp_init_stage): Always call ipa_compute_jump_functions on
        edges with variable number of parameters.
        * ipa-prop.c (ipa_write_node_info): Stream out uses_analysis_done
        flag instead of asserting it.
        (ipa_read_node_info): Read uses_analysis_done flag.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-cp.c
    trunk/gcc/ipa-prop.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42366

[Bug tree-optimization/42366] ICE in ipa_write_node_info, at ipa-prop.c:2023

[jamborm at gcc dot gnu dot org]

------- Comment #5 from jamborm at gcc dot gnu dot org  2010-01-04 19:35 -------
Hm, with this patch we hit the subsequent assert on x86_64 (as opposed to
i686).  I'm looking into this further.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42366

[Bug tree-optimization/42366] ICE in ipa_write_node_info, at ipa-prop.c:2023

[jamborm at gcc dot gnu dot org]

------- Comment #6 from jamborm at gcc dot gnu dot org  2010-01-04 20:05 -------
Please disregard the previous comment, I have too many screens on my screen. 
This is now fixed.


-- 

jamborm at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42366