[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[ixt at nm dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Sergey Gusarov <ixt at nm dot ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ixt at nm dot ru

--- Comment #8 from Sergey Gusarov <ixt at nm dot ru> 2010-12-10 13:09:33 UTC ---
Reproduced with gcc 4.5.1 arm-eabi crosscompiler

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[bpringlemeir at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Bill Pringlemeir <bpringlemeir at gmail dot com> changed:

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

--- Comment #9 from Bill Pringlemeir <bpringlemeir at gmail dot com> 2011-04-14 21:57:23 UTC ---
I believe I also have this occurring with host=x86_64-linux
target=arm-linux-gnueabi.  After reading this ticket, I retried my compiles
with the same link and compile optimization level and it succeeds. 

I understand that you want gcc to support different option levels for both
compile and link.  However, I don't know that most people want this and I am
not use to passing the linker options; a diagnostic for ld/gold plug-in when
there is an optimization mismatch may be helpful?  Is that a possibility for
4.5.x and 4.6.x releases?

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[bpringlemeir at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #10 from Bill Pringlemeir <bpringlemeir at gmail dot com> 2011-04-14 22:00:18 UTC ---
(In reply to comment #9)
> .. I am not use to passing the linker options

err ... optimization options.

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #11 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-04-15 10:33:03 UTC ---
(In reply to comment #9)
> I believe I also have this occurring with host=x86_64-linux
> target=arm-linux-gnueabi.  After reading this ticket, I retried my compiles
> with the same link and compile optimization level and it succeeds. 
> 
> I understand that you want gcc to support different option levels for both
> compile and link.  However, I don't know that most people want this and I am
> not use to passing the linker options; a diagnostic for ld/gold plug-in when
> there is an optimization mismatch may be helpful?  Is that a possibility for
> 4.5.x and 4.6.x releases?

It's not easy, otherwise we'd have done this already ;)

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[mh+gcc at glandium dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Mike Hommey <mh+gcc at glandium dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mh+gcc at glandium dot org

--- Comment #12 from Mike Hommey <mh+gcc at glandium dot org> 2011-08-02 15:22:20 UTC ---
I get something that might be the same thing with gcc 4.6.1 and gold 2.21.53
with -flto when building the mozilla codebase with a custom android NDK. The
line number is different, though:
internal compiler error: in insert_value_copy_on_edge, at tree-outof-ssa.c:242

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |howarth at nitro dot
                   |                            |med.uc.edu

--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-14 23:42:54 UTC ---
*** Bug 45448 has been marked as a duplicate of this bug. ***

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tommino at online dot de

--- Comment #13 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-14 23:42:37 UTC ---
*** Bug 48516 has been marked as a duplicate of this bug. ***

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikulas at artax dot
                   |                            |karlin.mff.cuni.cz

--- Comment #15 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-14 23:43:13 UTC ---
*** Bug 51300 has been marked as a duplicate of this bug. ***

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu.org

--- Comment #16 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-15 10:10:37 UTC ---
It's tedious to look at this without a testcase that triggers on native
x86_64.  My usual simple crosses do not work with LTO as I need a target
assembler and linker.

So - someone with access to an affected target please debug this.

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #17 from Uros Bizjak <ubizjak at gmail dot com> 2011-12-15 14:01:56 UTC ---
(In reply to comment #16)
> It's tedious to look at this without a testcase that triggers on native
> x86_64.  My usual simple crosses do not work with LTO as I need a target
> assembler and linker.
> 
> So - someone with access to an affected target please debug this.

I have managed to trigger this bug on x86_64-linux-gnu cross to
alpha-linux-gnu.

Please follow these steps:

1) compile and install binutils for alpha-linux-gnu.
2) configure crosscompiler with:
~/gcc-svn/trunk/configure --target=alpha-linux-gnu --enable-languages=c
3) make (and wait until the compilation crashes)

4) Go into gcc/testsuite/gcc.dg/lto directory

5) ~/gcc-build-alpha/gcc/xgcc -B ~/gcc-build-alpha/gcc -O1 -flto
-flto-partition=1to1 -fPIC  -c -o c_lto_20090116_0.o 20090116_0.c

6) ~/gcc-build-alpha/gcc/lto1 c_lto_20090116_0.o

In file included from :0:0:
20090116_0.c: In function ‘foo’:
20090116_0.c:6:5: internal compiler error: in insert_value_copy_on_edge, at
tree-outof-ssa.c:242
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: /home/uros/gcc-build-alpha/gcc/xgcc returned 1 exit status
collect2: error: lto-wrapper returned 1 exit status

7) gdb --args ~/gcc-build-alpha/gcc/lto1 c_lto_20090116_0.o

(gdb) break fancy_abort 
Breakpoint 1 at 0xadc540: file /home/uros/gcc-svn/trunk/gcc/diagnostic.c, line
898.
(gdb) r
Starting program: /home/uros/gcc-build-alpha/gcc/lto1 -O0 c_lto_20090116_0.o
warning: no loadable sections found in added symbol-file system-supplied DSO at
0x2aaaaaaab000
Reading object files: c_lto_20090116_0.o
Reading the callgraph
Merging declarations
Reading summaries
Reading function bodies: foo
Performing interprocedural optimizations
 <whole-program>Assembling functions:
 foo
Breakpoint 1, fancy_abort (file=0xb92430
"/home/uros/gcc-svn/trunk/gcc/tree-outof-ssa.c", line=242, 
    function=0xb92920 "insert_value_copy_on_edge") at
/home/uros/gcc-svn/trunk/gcc/diagnostic.c:898
898     {
(gdb) bt
#0  fancy_abort (file=0xb92430 "/home/uros/gcc-svn/trunk/gcc/tree-outof-ssa.c",
line=242, 
    function=0xb92920 "insert_value_copy_on_edge") at
/home/uros/gcc-svn/trunk/gcc/diagnostic.c:898
#1  0x000000000081c3ab in insert_value_copy_on_edge (e=<value optimized out>,
g=0xf94080)
    at /home/uros/gcc-svn/trunk/gcc/tree-outof-ssa.c:242
#2  eliminate_phi (e=<value optimized out>, g=0xf94080) at
/home/uros/gcc-svn/trunk/gcc/tree-outof-ssa.c:705
#3  0x000000000081c7e2 in expand_phi_nodes (sa=<value optimized out>)
    at /home/uros/gcc-svn/trunk/gcc/tree-outof-ssa.c:867
#4  0x00000000004d73f4 in gimple_expand_cfg () at
/home/uros/gcc-svn/trunk/gcc/cfgexpand.c:4518
#5  0x0000000000707459 in execute_one_pass (pass=0xeae160) at
/home/uros/gcc-svn/trunk/gcc/passes.c:2079
#6  0x00000000007077c5 in execute_pass_list (pass=0xeae160) at
/home/uros/gcc-svn/trunk/gcc/passes.c:2134
#7  0x00000000008191c8 in tree_rest_of_compilation (fndecl=0x2aaaae82d800)
    at /home/uros/gcc-svn/trunk/gcc/tree-optimize.c:421
#8  0x00000000004f51ba in cgraph_expand_function (node=0x2aaaae832000)
    at /home/uros/gcc-svn/trunk/gcc/cgraphunit.c:1818
#9  0x00000000004f8b6b in cgraph_output_in_order () at
/home/uros/gcc-svn/trunk/gcc/cgraphunit.c:1983
#10 cgraph_optimize () at /home/uros/gcc-svn/trunk/gcc/cgraphunit.c:2193
#11 0x000000000047f4e9 in lto_main () at
/home/uros/gcc-svn/trunk/gcc/lto/lto.c:2931
#12 0x00000000007a99ec in compile_file (argc=3, argv=0x7fffffffb8e8)
    at /home/uros/gcc-svn/trunk/gcc/toplev.c:557
#13 do_compile (argc=3, argv=0x7fffffffb8e8) at
/home/uros/gcc-svn/trunk/gcc/toplev.c:1928
#14 toplev_main (argc=3, argv=0x7fffffffb8e8) at
/home/uros/gcc-svn/trunk/gcc/toplev.c:2004
#15 0x0000003f90c1d994 in __libc_start_main () from /lib64/libc.so.6
#16 0x000000000045dee9 in _start ()

I will also attach c_lto_20090116_0.o.

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #18 from Uros Bizjak <ubizjak at gmail dot com> 2011-12-15 14:04:56 UTC ---
Created attachment 26102
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26102
intermediate object file for alpha-linux-gnu target

Attached object fails with lto crosscompiler to alpha-gnu-linux:

~/gcc-build-alpha/gcc/lto1 -O0 c_lto_20090116_0.o 
Reading object files: c_lto_20090116_0.o
Reading the callgraph
Merging declarations
Reading summaries
Reading function bodies: foo
Performing interprocedural optimizations
 <whole-program>Assembling functions:
 foo
In file included from :0:0:
20090116_0.c: In function ‘foo’:
20090116_0.c:6:5: internal compiler error: in insert_value_copy_on_edge, at
tree-outof-ssa.c:242
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #19 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-20 10:58:47 UTC ---
Mine.  The issue is that we are on a PROMOTE_MODE target and with !optimize
expand SSA names to stack slots:

  var = SSA_NAME_VAR (partition_to_var (SA.map, dest));
  src_mode = TYPE_MODE (TREE_TYPE (src));
  dest_mode = promote_decl_mode (var, &unsignedp);
  gcc_assert (src_mode == TYPE_MODE (TREE_TYPE (var)));
  gcc_assert (dest_mode == GET_MODE (SA.partition_to_pseudo[dest]));

(gdb) call debug_tree (var)
 <var_decl 0x7ffff5a2b320 i
    type <integer_type 0x7ffff5a2e5e8 int public SI
...
(gdb) p SA.partition_to_pseudo[dest]
$2 = (rtx) 0x7ffff5ad4c78
(gdb) call debug_rtx ($2)
(mem/c/i:SI (plus:DI (reg/f:DI 65 virtual-stack-vars)
        (const_int 4 [0x4])) [0 i+0 S4 A32])
(gdb) p dest_mode
$1 = DImode

but we cannot deal with stack temporaries.  I have a patch.

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #20 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-20 11:01:37 UTC ---
Created attachment 26151
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26151
patch

I'm testing this patch on x86_64-linux, but it won't make any difference there.
So can you guys test on arm/alpha please and report back?  Thx.

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rmansfield at qnx dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #21 from Ryan Mansfield <rmansfield at qnx dot com> 2011-12-20 12:27:29 UTC ---
(In reply to comment #20) 
> I'm testing this patch on x86_64-linux, but it won't make any difference there.
> So can you guys test on arm/alpha please and report back?  Thx.

For arm eabi, using rev182526 the ICE still happens on my original testcase but
after applying your patch the ICE no longer happens. Thanks!

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #22 from Uros Bizjak <ubizjak at gmail dot com> 2011-12-21 07:21:38 UTC ---
Hardly to believe, but alpha finished --with-build-config=bootstrap-lto build,
with lto crippled by the following patch:

Index: lto-wrapper.c
===================================================================
--- lto-wrapper.c       (revision 182526)
+++ lto-wrapper.c       (working copy)
@@ -581,7 +581,7 @@ run_gcc (unsigned argc, char *argv[])
       switch (option->opt_index)
        {
        case OPT_o:
-         linker_output = option->arg;
+         /* linker_output = option->arg; */
          /* We generate new intermediate output, drop this arg.  */
          continue;

The results of this experiment are at [1].

The failing testcase works as well, so the patch certainly fixes the bug and
doesn't introduce any problems.

(I can take care for backport of the patch to 4.6 and 4.5 branches).

[1] http://gcc.gnu.org/ml/gcc-testresults/2011-12/msg02168.html

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #23 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-21 09:23:03 UTC ---
Author: rguenth
Date: Wed Dec 21 09:22:58 2011
New Revision: 182570

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182570
Log:
2011-12-21  Richard Guenther  <rguenther@suse.de>

    PR lto/41159
    * tree-outof-ssa.c (insert_value_copy_on_edge): Use the
    mode of the pseudo as destination mode.  Only assert that
    is equal to the promoted mode of the decl if it is a REG.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-outof-ssa.c

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.7.0

--- Comment #24 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-21 09:24:05 UTC ---
Fixed on trunk, probably worth backporting to the 4.6 branch at least (it
should be safe as it only really adjusts an assertion and code if the assert
previously hit).

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[uros at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #25 from uros at gcc dot gnu.org 2011-12-21 12:26:17 UTC ---
Author: uros
Date: Wed Dec 21 12:26:04 2011
New Revision: 182580

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182580
Log:
    Backport from mainline
    2011-12-21  Richard Guenther  <rguenther@suse.de>

    PR lto/41159
    * tree-outof-ssa.c (insert_value_copy_on_edge): Use the
    mode of the pseudo as destination mode.  Only assert that
    is equal to the promoted mode of the decl if it is a REG.


Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/tree-outof-ssa.c

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[uros at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

--- Comment #26 from uros at gcc dot gnu.org 2011-12-21 17:23:44 UTC ---
Author: uros
Date: Wed Dec 21 17:23:33 2011
New Revision: 182597

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182597
Log:
    Backport from mainline
    2011-12-21  Richard Guenther  <rguenther@suse.de>

    PR lto/41159
    * tree-outof-ssa.c (insert_value_copy_on_edge): Use the
    mode of the pseudo as destination mode.  Only assert that
    is equal to the promoted mode of the decl if it is a REG.


Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-outof-ssa.c

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

Uros Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                URL|                            |http://gcc.gnu.org/ml/gcc-p
                   |                            |atches/2011-12/msg01504.htm
                   |                            |l
      Known to work|4.7.0                       |
         Resolution|                            |FIXED
   Target Milestone|---                         |4.5.4

--- Comment #27 from Uros Bizjak <ubizjak at gmail dot com> 2011-12-21 18:28:38 UTC ---
Fixed everywhere.

[Bug lto/41159] New: [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rmansfield at qnx dot com]

After merging in the assert from 150592 there is a new ICE on the lto branch.

$ ./xgcc -B. -v
Reading specs from ./specs
COLLECT_GCC=./xgcc
COLLECT_LTO_WRAPPER=./lto-wrapper
Target: arm-unknown-linux-gnueabi
Configured with: ../configure --target=arm-unknown-linux-gnueabi
--prefix=/home/ryan/x-tools/arm-unknown-linux-gnueabi
--with-sysroot=/home/ryan/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi//sys-root
--enable-languages=c,c++ --disable-multilib --with-float=soft
--with-gmp=/home/ryan/x-tools/arm-unknown-linux-gnueabi
--with-mpfr=/home/ryan/x-tools/arm-unknown-linux-gnueabi
--disable-sjlj-exceptions --enable-__cxa_atexit
--with-local-prefix=/home/ryan/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sys-root
--disable-nls --enable-threads=posix --enable-symvers=gnu --enable-c99
--enable-long-long --enable-target-optspace
Thread model: posix
gcc version 4.5.0 20090824 (experimental) [lto revision 151057] (lto merged
with rev 150842)

$ ./xgcc -B. -c -O -fpic ~/ice.i -flto
$ ./xgcc -B. -flto ice.o -shared
In file included from :0:0:
/home/ryan/ice.i: In function 'acos':
/home/ryan/ice.i:660:9: internal compiler error: in insert_value_copy_on_edge,
at tree-outof-ssa.c:225
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: ././xgcc returned 1 exit status
collect2: lto-wrapper returned 1 exit status


-- 
           Summary: [LTO] ICE in insert_value_copy_on_edge, at tree-outof-
                    ssa.c:225
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rmansfield at qnx dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: arm-unknown-linux-gnueabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rmansfield at qnx dot com]

------- Comment #1 from rmansfield at qnx dot com  2009-08-24 19:34 -------
Created an attachment (id=18419)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18419&action=view)
preprocessed source


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-10-03 22:14 -------
Needs re-confirming, I think this has been fixed.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[ubizjak at gmail dot com]

------- Comment #3 from ubizjak at gmail dot com  2009-10-04 08:06 -------
I have hit what looks as the same problem on alpha for gcc.dg/lto/20090116_0.c:

int foo(void) {
 int ret, i;
 for (i = 0; i < 1; i++)
   ret = 0;
 for (i = 0; i < 1; i++)
   ret = 1;
 return ret;
}

~/gcc-build/gcc/xgcc -B ~/gcc-build/gcc/  -O1 -fwhopr -fPIC  -c  -o
c_lto_20090116_0.o 20090116_0.c

~/gcc-build/gcc/xgcc -B ~/gcc-build/gcc/ c_lto_20090116_0.o  -O1 -fwhopr -fPIC
-shared -O0 -o gcc-dg-lto-20090116-01
In file included from :0:0:
20090116_0.c: In function 'foo':
20090116_0.c:5:5: internal compiler error: in insert_value_copy_on_edge, at
tree-outof-ssa.c:228


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[ubizjak at gmail dot com]

------- Comment #4 from ubizjak at gmail dot com  2009-10-04 08:15 -------
Confirmed on alpha with attached testcase:

~/gcc-build/gcc/xgcc -B ~/gcc-build/gcc/  -O1 -fwhopr -fPIC  -c pr41159.i

~/gcc-build/gcc/xgcc -B ~/gcc-build/gcc/ c_lto_20090116_0
.o  -O1 -fwhopr -fPIC -shared -O0 pr41159.o
In file included from :4:0:
pr41159.i: In function 'acos':
pr41159.i:660:9: internal compiler error: in insert_value_copy_on_edge, at
tree-outof-ssa.c:228
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto1: fatal error: /home/uros/gcc-build/gcc/xgcc terminated with status 256
compilation terminated.
lto-wrapper: /home/uros/gcc-build/gcc/xgcc returned 1 exit status
collect2: lto-wrapper returned 1 exit status


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ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-10-04 08:15:44
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[danglin at gcc dot gnu dot org]

------- Comment #5 from danglin at gcc dot gnu dot org  2009-10-10 20:55 -------
This bug also affects hppa64-hp-hpux11.11.


-- 

danglin at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |danglin at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2009-10-19 23:52 -------
I get a similar issue on powerpc with -O3 used on the object file and then -O0
used for the final link.  Though the simple example does not show the issue on
PPC.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159

[Bug lto/41159] [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2010-04-23 15:51 -------
*** Bug 42341 has been marked as a duplicate of this bug. ***


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rguenth at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41159