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* [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659
@ 2012-11-03 16:30 martin.kronbichler at it dot uu.se
2012-11-03 16:58 ` [Bug debug/55193] " mpolacek at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: martin.kronbichler at it dot uu.se @ 2012-11-03 16:30 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193
Bug #: 55193
Summary: ICE in in simplify_const_unary_operation, at
simplify-rtx.c:1659
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: martin.kronbichler@it.uu.se
Created attachment 28603
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28603
Delta-reduced test case
With gcc trunk (rev 193123) on x86-64 linux:
$ g++-4.8 -v
Using built-in specs.
COLLECT_GCC=g++-4.8
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-linux-gnu/4.8.0/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../gcc_trunk/configure --enable-languages=c,c++,fortran
--prefix=/usr/local --program-suffix=-4.8 --enable-shared
--enable-linker-build-id --with-system-zlib --without-included-gettext
--enable-threads=posix --enable-nls --enable-libstdcxx-time=yes
--disable-multilib --enable-plugin --disable-werror --with-tune=corei7-avx
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu --with-isl=/usr/local --with-cloog=/usr/local
Thread model: posix
gcc version 4.8.0 20121103 (experimental) (GCC)
I compile the attached test case with command line:
$ g++-4.8 -g -Og testcase2.i -c
which leads to the ICE below. The error only appears with both -Og and -g
specified.
testcase2.i: In function ‘void foo(FEValues&, Tensor&, vector<double>&)’:
testcase2.i:49:7: internal compiler error: in simplify_const_unary_operation,
at simplify-rtx.c:1659
}
^
0x8a7063 simplify_const_unary_operation(rtx_code, machine_mode, rtx_def*,
machine_mode)
../../gcc_trunk/gcc/simplify-rtx.c:1659
0x89ddda simplify_unary_operation(rtx_code, machine_mode, rtx_def*,
machine_mode)
../../gcc_trunk/gcc/simplify-rtx.c:783
0x698a50 cselib_expand_value_rtx_1
../../gcc_trunk/gcc/cselib.c:1826
0x699d6e cselib_expand_value_rtx_cb(rtx_def*, bitmap_head_def*, int, rtx_def*
(*)(rtx_def*, bitmap_head_def*, int, void*), void*)
../../gcc_trunk/gcc/cselib.c:1534
0xa27488 vt_expand_var_loc_chain
../../gcc_trunk/gcc/var-tracking.c:8063
0xa27488 vt_expand_loc_callback
../../gcc_trunk/gcc/var-tracking.c:8225
0x69891f cselib_expand_value_rtx_1
../../gcc_trunk/gcc/cselib.c:1687
0x699d6e cselib_expand_value_rtx_cb(rtx_def*, bitmap_head_def*, int, rtx_def*
(*)(rtx_def*, bitmap_head_def*, int, void*), void*)
../../gcc_trunk/gcc/cselib.c:1534
0xa27cb7 vt_expand_var_loc_chain
../../gcc_trunk/gcc/var-tracking.c:8063
0xa27cb7 vt_expand_1pvar
../../gcc_trunk/gcc/var-tracking.c:8340
0xa2832f emit_note_insn_var_location
../../gcc_trunk/gcc/var-tracking.c:8394
0xd1da97 htab_traverse_noresize
../../gcc_trunk/libiberty/hashtab.c:784
0xa28cd7 emit_notes_for_changes
../../gcc_trunk/gcc/var-tracking.c:8757
0xa290c1 emit_notes_in_bb
../../gcc_trunk/gcc/var-tracking.c:9187
0xa290c1 vt_emit_notes
../../gcc_trunk/gcc/var-tracking.c:9249
0xa29839 variable_tracking_main_1
../../gcc_trunk/gcc/var-tracking.c:10068
0xa29839 variable_tracking_main()
../../gcc_trunk/gcc/var-tracking.c:10082
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug debug/55193] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659
2012-11-03 16:30 [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 martin.kronbichler at it dot uu.se
@ 2012-11-03 16:58 ` mpolacek at gcc dot gnu.org
2012-12-10 17:45 ` [Bug rtl-optimization/55193] [4.8 Regression] " jakub at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2012-11-03 16:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-11-03
CC| |mpolacek at gcc dot
| |gnu.org, vmakarov at gcc
| |dot gnu.org
Target Milestone|--- |4.8.0
Ever Confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> 2012-11-03 16:58:10 UTC ---
Started http://gcc.gnu.org/viewcvs?view=revision&revision=192719
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/55193] [4.8 Regression] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659
2012-11-03 16:30 [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 martin.kronbichler at it dot uu.se
2012-11-03 16:58 ` [Bug debug/55193] " mpolacek at gcc dot gnu.org
@ 2012-12-10 17:45 ` jakub at gcc dot gnu.org
2012-12-10 17:53 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-12-10 17:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-10 17:44:57 UTC ---
Can't be reproduced starting with
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193157
(made latent on this testcase), but if I revert the patch I can reproduce it
easily.
The bug is in lra-constraints.c, loc_equivalence_change_p really doesn't work
well on DEBUG_INSNs.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/55193] [4.8 Regression] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659
2012-11-03 16:30 [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 martin.kronbichler at it dot uu.se
2012-11-03 16:58 ` [Bug debug/55193] " mpolacek at gcc dot gnu.org
2012-12-10 17:45 ` [Bug rtl-optimization/55193] [4.8 Regression] " jakub at gcc dot gnu.org
@ 2012-12-10 17:53 ` jakub at gcc dot gnu.org
2012-12-11 18:01 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-12-10 17:53 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-10 17:53:01 UTC ---
Created attachment 28915
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28915
gcc48-pr55193.patch
Untested fix. For changes to DEBUG_INSNs, generally simplify_replace_fn_rtx
is the best thing, it takes care of simplifying everything that is needed, both
for the cases where something changes from non-VOIDmode into VOIDmode (then
simplification is required; e.g. as on this testcase (zero_extend:DI (reg:SI
eax) 0) where eax is replaced by (const_int 0)), and a nice thing to have
otherwise.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/55193] [4.8 Regression] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659
2012-11-03 16:30 [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 martin.kronbichler at it dot uu.se
` (2 preceding siblings ...)
2012-12-10 17:53 ` jakub at gcc dot gnu.org
@ 2012-12-11 18:01 ` jakub at gcc dot gnu.org
2012-12-11 19:15 ` jakub at gcc dot gnu.org
2013-01-14 19:36 ` steven at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-12-11 18:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-11 18:01:19 UTC ---
Author: jakub
Date: Tue Dec 11 18:01:09 2012
New Revision: 194405
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194405
Log:
PR rtl-optimization/55193
* lra-constraints.c (loc_equivalence_callback): New function.
(lra_constraints): Call simplify_replace_fn_rtx instead of
loc_equivalence_change_p on DEBUG_INSNs.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/lra-constraints.c
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/55193] [4.8 Regression] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659
2012-11-03 16:30 [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 martin.kronbichler at it dot uu.se
` (3 preceding siblings ...)
2012-12-11 18:01 ` jakub at gcc dot gnu.org
@ 2012-12-11 19:15 ` jakub at gcc dot gnu.org
2013-01-14 19:36 ` steven at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-12-11 19:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-11 19:15:21 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/55193] [4.8 Regression] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659
2012-11-03 16:30 [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 martin.kronbichler at it dot uu.se
` (4 preceding siblings ...)
2012-12-11 19:15 ` jakub at gcc dot gnu.org
@ 2013-01-14 19:36 ` steven at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: steven at gcc dot gnu.org @ 2013-01-14 19:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193
--- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2013-01-14 19:35:10 UTC ---
Author: steven
Date: Mon Jan 14 19:35:03 2013
New Revision: 195173
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195173
Log:
* ira-build.c (ira_flattening): Comment fix.
Port the following LRA changes on trunk back to the LRA branch:
2013-01-10 Vladimir Makarov <vmakarov at redhat dot com>
PR rtl-optimization/pr55672
* lra-eliminations.c (mark_not_elimnable): Permit addition with
const to be elimnable.
2012-12-21 Vladimir Makarov <vmakarov at redhat dot com>
PR middle-end/55775
* lra-assigns.c (improve_inheritance): Do nothing after
LRA_MAX_INHERITANCE_PASSES pass.
* lra-constraints.c (MAX_CONSTRAINT_ITERATION_NUMBER): Rename to
LRA_MAX_CONSTRAINT_ITERATION_NUMBER. Move to lra-int.h.
(MAX_INHERITANCE_PASSES): Rename to LRA_MAX_INHERITANCE_PASSES.
Move to lra-int.h.
* lra-int.h (LRA_MAX_CONSTRAINT_ITERATION_NUMBER): Move from
lra-constraints.c.
(LRA_MAX_INHERITANCE_PASSES): Ditto.
2012-12-21 Steve Ellcey <sellcey at mips dot com>
PR bootstrap/54128
* ira.c (build_insn_chain): Check only NONDEBUG instructions for
register usage.
2012-12-11 Jakub Jelinek <jakub at redhat dot com>
PR rtl-optimization/55193
* lra-constraints.c (loc_equivalence_callback): New function.
(lra_constraints): Call simplify_replace_fn_rtx instead of
loc_equivalence_change_p on DEBUG_INSNs.
Modified:
branches/lra/gcc/ChangeLog
branches/lra/gcc/ira-build.c
branches/lra/gcc/ira.c
branches/lra/gcc/lra-assigns.c
branches/lra/gcc/lra-constraints.c
branches/lra/gcc/lra-eliminations.c
branches/lra/gcc/lra-int.h
^ permalink raw reply [flat|nested] 7+ messages in thread
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2012-11-03 16:30 [Bug debug/55193] New: ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 martin.kronbichler at it dot uu.se
2012-11-03 16:58 ` [Bug debug/55193] " mpolacek at gcc dot gnu.org
2012-12-10 17:45 ` [Bug rtl-optimization/55193] [4.8 Regression] " jakub at gcc dot gnu.org
2012-12-10 17:53 ` jakub at gcc dot gnu.org
2012-12-11 18:01 ` jakub at gcc dot gnu.org
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