[Bug other/35618] New: [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[Bug other/35618] New: [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[bunk at stusta dot de]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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$ gcc -Wp,-MD,kernel/.sched.o.d  -nostdinc -isystem
/usr/lib/gcc/i486-linux-gnu/4.3.1/include -D__KERNEL__ -Iinclude -Iinclude2
-I/home/bunk/linux/kernel-2.6/git/linux-2.6/include -include
include/linux/autoconf.h -I/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel
-Ikernel -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
-fno-common -Werror-implicit-function-declaration -Os -fno-stack-protector
-D__arch_um__ -DSUBARCH=\"i386\"
-I/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/um/include -Iarch/um/include 
-I/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/um/include 
-I/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/um/include/skas
-Dvmap=kernel_vmap -Din6addr_loopback=kernel_in6addr_loopback
-Din6addr_any=kernel_in6addr_any -march=i686 -mpreferred-stack-boundary=2
-ffreestanding -D_LARGEFILE64_SOURCE -Derrno=kernel_errno
-Dsigprocmask=kernel_sigprocmask -Dmktime=kernel_mktime -fno-unit-at-a-time
-fno-omit-frame-pointer -fno-optimize-sibling-calls -g
-Wdeclaration-after-statement -Wno-pointer-sign -fno-omit-frame-pointer 
-D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(sched)" 
-D"KBUILD_MODNAME=KBUILD_STR(sched)" -c -o kernel/sched.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/sched.c
In file included from
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/sched.c:1213:
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/sched_idletask.c: In function
‘check_preempt_curr_idle’:
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/sched_idletask.c:20: internal
compiler error: in cgraph_estimate_size_after_inlining, at ipa-inline.c:188
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.3/README.Bugs> for instructions.
$ gcc --version
gcc (Debian 4.3.0-1) 4.3.1 20080309 (prerelease)


-- 
           Summary: [4.3/4.4 regression] ICE in
                    cgraph_estimate_size_after_inlining, at ipa-inline.c:188
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bunk at stusta dot de
 GCC build triplet: i486-linux-gnu
  GCC host triplet: i486-linux-gnu
GCC target triplet: i486-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[bunk at stusta dot de]

------- Comment #1 from bunk at stusta dot de  2008-03-17 19:11 -------
Created an attachment (id=15337)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15337&action=view)
preprocessed source


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2008-03-17 19:14 -------
First -fno-unit-at-a-time seems wrong.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[bunk at stusta dot de]

------- Comment #3 from bunk at stusta dot de  2008-03-17 19:23 -------
That's the UML kernel, and it was added there quite some time ago.

I do not know whether that might be dropped or whether it might still result in
increased stack usage with gcc 4.3, but IMHO as long as gcc offers this option
it shouldn't cause an ICE.


-- 

bunk at stusta dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu dot
                   |                            |org
           Priority|P3                          |P2
   Target Milestone|---                         |4.3.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[bangerth at dealii dot org]

------- Comment #4 from bangerth at dealii dot org  2008-03-25 18:58 -------
I can't reproduce this with

tmp/g> /home/bangerth/bin/x86/gcc-mainline/bin/gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../mainline/configure
--prefix=/home/bangerth/bin/x86/gcc-mainline --enable-languages=c,c++
--enable-checking --with-gmp=/home/bangerth/bin/x86
--with-mpfr=/home/bangerth/bin/x86
Thread model: posix
gcc version 4.4.0 20080317 (experimental) [trunk revision 133287] (GCC) 


Can you state which flags you actually need to reproduce the bug with
your preprocessed sources?

W.


-- 

bangerth at dealii dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bangerth at dealii dot org
             Status|UNCONFIRMED                 |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[bunk at stusta dot de]

------- Comment #5 from bunk at stusta dot de  2008-03-25 19:24 -------
The flags I used are in my bug description.

It seems "-Os -fno-unit-at-a-time" are the minimum flags required for
reproducing it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3/4.4 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[bangerth at dealii dot org]

------- Comment #6 from bangerth at dealii dot org  2008-03-25 19:37 -------
It appears to work with "gcc version 4.4.0 20080317". Can you see if it
works for you as well with a more recent gcc version (either from top-of-tree
or the top of the 4.3 branch that you used in your experiments)?

W.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug other/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[bunk at stusta dot de]

------- Comment #7 from bunk at stusta dot de  2008-03-26 13:54 -------
Bug seems to be no longer present with svn HEAD.

Bug is still present in 4.3 as of 4.3-20080320.


-- 

bunk at stusta dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |UNCONFIRMED
            Summary|[4.3/4.4 regression] ICE in |[4.3 regression] ICE in
                   |cgraph_estimate_size_after_i|cgraph_estimate_size_after_i
                   |nlining, at ipa-inline.c:188|nlining, at ipa-inline.c:188


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug tree-optimization/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[rguenth at gcc dot gnu dot org]

------- Comment #8 from rguenth at gcc dot gnu dot org  2008-05-23 14:35 -------
Confirmed.

Testcase, -Os -fno-unit-at-a-time

static void __resched_task(void *p, int tif_bit);
static inline __attribute__((always_inline))
void resched_task(void *p) {  __resched_task(p, 2);  }
static void __resched_task(void *p, int tif_bit) { }
void check_preempt_curr_idle(void *p)
{
  resched_task(p);
}

if you put an inline onto the definition of __resched_task the testcase
also ICEs for -O and -O2, so quite likely we are more agressive with -Os
inlining but decide so after-the-fact which confuses the size estimates.

Honza, can you please have a look here?


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
          Component|other                       |tree-optimization
     Ever Confirmed|0                           |1
  GCC build triplet|i486-linux-gnu              |
   GCC host triplet|i486-linux-gnu              |
 GCC target triplet|i486-linux-gnu              |
   Last reconfirmed|0000-00-00 00:00:00         |2008-05-23 14:35:53
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug tree-optimization/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2008-06-06 14:59 -------
4.3.1 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.1                       |4.3.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug tree-optimization/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[jsm28 at gcc dot gnu dot org]

------- Comment #10 from jsm28 at gcc dot gnu dot org  2008-08-27 22:03 -------
4.3.2 is released, changing milestones to 4.3.3.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.2                       |4.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug tree-optimization/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[rguenth at gcc dot gnu dot org]

------- Comment #11 from rguenth at gcc dot gnu dot org  2009-01-24 10:20 -------
GCC 4.3.3 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.3                       |4.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug tree-optimization/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[rguenth at gcc dot gnu dot org]

------- Comment #12 from rguenth at gcc dot gnu dot org  2009-08-04 12:28 -------
GCC 4.3.4 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.4                       |4.3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug tree-optimization/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[rguenth at gcc dot gnu dot org]

------- Comment #13 from rguenth at gcc dot gnu dot org  2010-05-22 18:12 -------
GCC 4.3.5 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.5                       |4.3.6


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618

[Bug tree-optimization/35618] [4.3 regression] ICE in cgraph_estimate_size_after_inlining, at ipa-inline.c:188

[kamaraju at gmail dot com]

------- Comment #14 from kamaraju at gmail dot com  2010-09-12 13:39 -------
The reduced test case in comment #8, with options "-c -Os -fno-unit-at-a-time",
does not ICE in gcc 4.4.5 20100909, gcc 4.6.0 20100828. But it gives an ICE
with gcc 4.3.5.

Also, for sched.i, with options "-c -Os -fno-unit-at-a-time", there is no ICE
with gcc 4.4.5 20100909, gcc 4.6.0 20100828. But it gives an ICE with gcc
4.3.5.

Just FYI.


-- 

kamaraju at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kamaraju at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35618