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* [Bug lto/44149] New: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610
@ 2010-05-15 9:30 toon at moene dot org
2010-05-15 9:33 ` [Bug lto/44149] " toon at moene dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: toon at moene dot org @ 2010-05-15 9:30 UTC (permalink / raw)
To: gcc-bugs
The attached subroutine is compiled as follows:
gfortran -c -flto -O2 -fwhole-program bkfconv.F90
and then the object file is placed in a library of its own:
ar rv x.a bkfconv.o
Subsequently, a main program, b.f:
call deep_convection
end
is linked with this library, as follows:
gfortran -fuse-linker-plugin -flto -O2 -fwhole-program b.f x.a
This results in the ICE in the subject.
gfortran -v
Using built-in specs.
COLLECT_GCC=/usr/snp/bin/gfortran
COLLECT_LTO_WRAPPER=/usr/snp/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc/configure --enable-checking=release --prefix=/usr/snp
--enable-gold --enable-plugins --disable-multilib --disable-nls
--with-arch-64=native --with-tune-64=native --enable-languages=fortran,c++
--enable-stage1-languages=c++ --disable-werror
Thread model: posix
gcc version 4.6.0 20100514 (experimental) (GCC)
ld -v
GNU gold (GNU Binutils 2.20.51.20100506) 1.9
--
Summary: lto1: internal compiler error: in
lto_symtab_merge_decls_1, at lto-symtab.c:610
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: toon at moene dot org
GCC host triplet: x64_86-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44149
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug lto/44149] lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610
2010-05-15 9:30 [Bug lto/44149] New: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610 toon at moene dot org
@ 2010-05-15 9:33 ` toon at moene dot org
2010-05-16 18:36 ` toon at moene dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: toon at moene dot org @ 2010-05-15 9:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from toon at moene dot org 2010-05-15 09:32 -------
Created an attachment (id=20664)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20664&action=view)
source code that shows the bug
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44149
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug lto/44149] lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610
2010-05-15 9:30 [Bug lto/44149] New: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610 toon at moene dot org
2010-05-15 9:33 ` [Bug lto/44149] " toon at moene dot org
@ 2010-05-16 18:36 ` toon at moene dot org
2010-05-16 18:51 ` toon at moene dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: toon at moene dot org @ 2010-05-16 18:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from toon at moene dot org 2010-05-16 18:35 -------
Created an attachment (id=20675)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20675&action=view)
reduced test case
A reduced test case that failes in the same way.
--
toon at moene dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #20664|0 |1
is obsolete| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44149
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug lto/44149] lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610
2010-05-15 9:30 [Bug lto/44149] New: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610 toon at moene dot org
2010-05-15 9:33 ` [Bug lto/44149] " toon at moene dot org
2010-05-16 18:36 ` toon at moene dot org
@ 2010-05-16 18:51 ` toon at moene dot org
2010-05-17 9:10 ` [Bug lto/44149] -fuse-linker-plugin " rguenth at gcc dot gnu dot org
2010-05-18 18:15 ` ccoutant at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: toon at moene dot org @ 2010-05-16 18:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from toon at moene dot org 2010-05-16 18:51 -------
It might be useful to compare the two decls that invoke the mismatch that
triggers the gcc_assert:
prevailing->decl is:
<function_decl 0x7fb0f574f900 convect_satmixratio
type <function_type 0x7fb0f5786b28
type <void_type 0x7fb0f584cd20 VOID
align 8 symtab 0 alias set -1 canonical type 0x7fb0f584cd20
pointer_to_this <pointer_type 0x7fb0f584cdc8>>
QI
size <integer_cst 0x7fb0f583d758 constant 8>
unit size <integer_cst 0x7fb0f583d780 constant 1>
align 8 symtab 0 alias set -1 canonical type 0x7fb0f5786b28>
public external QI file bkfconv.f90 line 517 col 0 align 8>
whereas e->decl is:
<function_decl 0x7fb0f574f600 convect_satmixratio
type <function_type 0x7fb0f5763b28
type <void_type 0x7fb0f584cd20 VOID
align 8 symtab 0 alias set -1 canonical type 0x7fb0f584cd20
pointer_to_this <pointer_type 0x7fb0f584cdc8>>
QI
size <integer_cst 0x7fb0f583d758 constant 8>
unit size <integer_cst 0x7fb0f583d780 constant 1>
align 8 symtab 0 alias set -1 canonical type 0x7fb0f5763b28
arg-types <tree_list 0x7fb0f5754bb8 value <reference_type
0x7fb0f5750738>
chain <tree_list 0x7fb0f5754be0 value <pointer_type 0x7fb0f5763bd0>
chain <tree_list 0x7fb0f5754c08 value <pointer_type
0x7fb0f5764000>
chain <tree_list 0x7fb0f5754c30 value <pointer_type
0x7fb0f57643f0>
chain <tree_list 0x7fb0f5754c58 value <pointer_type
0x7fb0f57647e0> chain <tree_list 0x7fb0f5754c80>>>>>>>
nothrow public static QI file bkfconv.f90 line 400 col 0 align 8
arguments <parm_decl 0x7fb0f5760660 klon
type <reference_type 0x7fb0f5750738 type <integer_type 0x7fb0f584c498>
unsigned restrict DI
size <integer_cst 0x7fb0f583da50 constant 64>
unit size <integer_cst 0x7fb0f583da78 constant 8>
align 64 symtab 0 alias set -1 canonical type 0x7fb0f5750738>
readonly used unsigned DI passed-by-reference file bkfconv.f90 line 400
col 0 size <integer_cst 0x7fb0f583da50 64> unit size <integer_cst
0x7fb0f583da78 8>
align 64 context <function_decl 0x7fb0f574f600 convect_satmixratio>
arg-type <reference_type 0x7fb0f5750738>
chain <parm_decl 0x7fb0f57606e8 ppres type <pointer_type
0x7fb0f57653f0>
readonly used unsigned DI passed-by-reference file bkfconv.f90 line
400 col 0 size <integer_cst 0x7fb0f583da50 64> unit size <integer_cst
0x7fb0f583da78 8>
align 64 context <function_decl 0x7fb0f574f600 convect_satmixratio>
arg-type <pointer_type 0x7fb0f5763bd0> chain <parm_decl 0x7fb0f5760770 pt>>>
result <result_decl 0x7fb0f5752180 D.2157 type <void_type 0x7fb0f584cd20>
ignored VOID file bkfconv.f90 line 400 col 0
align 8 context <function_decl 0x7fb0f574f600 convect_satmixratio>>>
This is found by adding the following to lto-symtab.c:
$ svn diff
Index: lto-symtab.c
===================================================================
--- lto-symtab.c (revision 159454)
+++ lto-symtab.c (working copy)
@@ -603,8 +603,15 @@
/* Assert it's the only one. */
if (prevailing)
for (e = prevailing->next; e; e = e->next)
- gcc_assert (e->resolution != LDPR_PREVAILING_DEF_IRONLY
- && e->resolution != LDPR_PREVAILING_DEF);
+ {
+ if (!(e->resolution != LDPR_PREVAILING_DEF_IRONLY
+ && e->resolution != LDPR_PREVAILING_DEF))
+ {
+ debug_tree(prevailing->decl);
+ debug_tree(e->decl);
+ gcc_assert(0);
+ }
+ }
/* If there's not a prevailing symbol yet it's an external reference.
Happens a lot during ltrans. Choose the first symbol with a
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44149
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug lto/44149] -fuse-linker-plugin lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610
2010-05-15 9:30 [Bug lto/44149] New: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610 toon at moene dot org
` (2 preceding siblings ...)
2010-05-16 18:51 ` toon at moene dot org
@ 2010-05-17 9:10 ` rguenth at gcc dot gnu dot org
2010-05-18 18:15 ` ccoutant at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-05-17 9:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-05-17 09:10 -------
(In reply to comment #3)
> It might be useful to compare the two decls that invoke the mismatch that
> triggers the gcc_assert:
>
> prevailing->decl is:
>
> <function_decl 0x7fb0f574f900 convect_satmixratio
> type <function_type 0x7fb0f5786b28
> type <void_type 0x7fb0f584cd20 VOID
> align 8 symtab 0 alias set -1 canonical type 0x7fb0f584cd20
> pointer_to_this <pointer_type 0x7fb0f584cdc8>>
> QI
> size <integer_cst 0x7fb0f583d758 constant 8>
> unit size <integer_cst 0x7fb0f583d780 constant 1>
> align 8 symtab 0 alias set -1 canonical type 0x7fb0f5786b28>
> public external QI file bkfconv.f90 line 517 col 0 align 8>
>
> whereas e->decl is:
>
> <function_decl 0x7fb0f574f600 convect_satmixratio
> type <function_type 0x7fb0f5763b28
> type <void_type 0x7fb0f584cd20 VOID
> align 8 symtab 0 alias set -1 canonical type 0x7fb0f584cd20
> pointer_to_this <pointer_type 0x7fb0f584cdc8>>
> QI
> size <integer_cst 0x7fb0f583d758 constant 8>
> unit size <integer_cst 0x7fb0f583d780 constant 1>
> align 8 symtab 0 alias set -1 canonical type 0x7fb0f5763b28
> arg-types <tree_list 0x7fb0f5754bb8 value <reference_type
> 0x7fb0f5750738>
> chain <tree_list 0x7fb0f5754be0 value <pointer_type 0x7fb0f5763bd0>
> chain <tree_list 0x7fb0f5754c08 value <pointer_type
> 0x7fb0f5764000>
> chain <tree_list 0x7fb0f5754c30 value <pointer_type
> 0x7fb0f57643f0>
> chain <tree_list 0x7fb0f5754c58 value <pointer_type
> 0x7fb0f57647e0> chain <tree_list 0x7fb0f5754c80>>>>>>>
> nothrow public static QI file bkfconv.f90 line 400 col 0 align 8
> arguments <parm_decl 0x7fb0f5760660 klon
> type <reference_type 0x7fb0f5750738 type <integer_type 0x7fb0f584c498>
> unsigned restrict DI
> size <integer_cst 0x7fb0f583da50 constant 64>
> unit size <integer_cst 0x7fb0f583da78 constant 8>
> align 64 symtab 0 alias set -1 canonical type 0x7fb0f5750738>
> readonly used unsigned DI passed-by-reference file bkfconv.f90 line 400
> col 0 size <integer_cst 0x7fb0f583da50 64> unit size <integer_cst
> 0x7fb0f583da78 8>
> align 64 context <function_decl 0x7fb0f574f600 convect_satmixratio>
> arg-type <reference_type 0x7fb0f5750738>
> chain <parm_decl 0x7fb0f57606e8 ppres type <pointer_type
> 0x7fb0f57653f0>
> readonly used unsigned DI passed-by-reference file bkfconv.f90 line
> 400 col 0 size <integer_cst 0x7fb0f583da50 64> unit size <integer_cst
> 0x7fb0f583da78 8>
> align 64 context <function_decl 0x7fb0f574f600 convect_satmixratio>
> arg-type <pointer_type 0x7fb0f5763bd0> chain <parm_decl 0x7fb0f5760770 pt>>>
> result <result_decl 0x7fb0f5752180 D.2157 type <void_type 0x7fb0f584cd20>
> ignored VOID file bkfconv.f90 line 400 col 0
> align 8 context <function_decl 0x7fb0f574f600 convect_satmixratio>>>
>
> This is found by adding the following to lto-symtab.c:
It's obvious that somehow the prevailing one is the wrong one.
<function_decl 0x7fb0f574f900 convect_satmixratio
type <function_type 0x7fb0f5786b28
type <void_type 0x7fb0f584cd20 VOID
align 8 symtab 0 alias set -1 canonical type 0x7fb0f584cd20
pointer_to_this <pointer_type 0x7fb0f584cdc8>>
QI
size <integer_cst 0x7fb0f583d758 constant 8>
unit size <integer_cst 0x7fb0f583d780 constant 1>
align 8 symtab 0 alias set -1 canonical type 0x7fb0f5786b28>
public external QI file bkfconv.f90 line 517 col 0 align 8>
isn't prevailing at all.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-05-17 09:10:19
date| |
Summary|lto1: internal compiler |-fuse-linker-plugin lto1:
|error: in |internal compiler error: in
|lto_symtab_merge_decls_1, at|lto_symtab_merge_decls_1, at
|lto-symtab.c:610 |lto-symtab.c:610
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44149
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug lto/44149] -fuse-linker-plugin lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610
2010-05-15 9:30 [Bug lto/44149] New: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610 toon at moene dot org
` (3 preceding siblings ...)
2010-05-17 9:10 ` [Bug lto/44149] -fuse-linker-plugin " rguenth at gcc dot gnu dot org
@ 2010-05-18 18:15 ` ccoutant at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: ccoutant at gcc dot gnu dot org @ 2010-05-18 18:15 UTC (permalink / raw)
To: gcc-bugs
--
ccoutant at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |ccoutant at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2010-05-17 09:10:19 |2010-05-18 18:15:27
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44149
^ permalink raw reply [flat|nested] 6+ messages in thread
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2010-05-15 9:30 [Bug lto/44149] New: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:610 toon at moene dot org
2010-05-15 9:33 ` [Bug lto/44149] " toon at moene dot org
2010-05-16 18:36 ` toon at moene dot org
2010-05-16 18:51 ` toon at moene dot org
2010-05-17 9:10 ` [Bug lto/44149] -fuse-linker-plugin " rguenth at gcc dot gnu dot org
2010-05-18 18:15 ` ccoutant at gcc dot gnu dot org
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