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* [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
@ 2012-10-17 20:13 dominiq at lps dot ens.fr
2012-10-18 9:56 ` [Bug middle-end/54961] " rguenth at gcc dot gnu.org
` (10 more replies)
0 siblings, 11 replies; 12+ messages in thread
From: dominiq at lps dot ens.fr @ 2012-10-17 20:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
Bug #: 54961
Summary: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O
(internal compiler error) after revision 192440
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: dominiq@lps.ens.fr
CC: hjl.tools@gmail.com, steven@gcc.gnu.org
Target: *86*-*-*
After revision 192440 (192439 is OK), compiling the test gfortran.dg/pr48757.f
on *86*-*-* targets (powerpc*-*-* ones work fine) with '-w -m32 -O2' gives an
ICE:
/opt/gcc/work/gcc/testsuite/gfortran.dg/pr48757.f: In function 'dfconc':
/opt/gcc/work/gcc/testsuite/gfortran.dg/pr48757.f:54:0: internal compiler
error: in compensate_edge, at reg-stack.c:2805
END
The backtrace is
#9 0x000000010059d5ee in rest_of_handle_stack_regs () at
../../p_work/gcc/reg-stack.c:2805
#10 0x0000000100576aef in execute_one_pass (pass=<value optimized out>) at
../../p_work/gcc/passes.c:2320
#11 0x0000000100576efd in execute_pass_list (pass=<value optimized out>) at
../../p_work/gcc/passes.c:2381
#12 0x0000000100576f0f in execute_pass_list (pass=<value optimized out>) at
../../p_work/gcc/passes.c:2382
#13 0x0000000100576f0f in execute_pass_list (pass=<value optimized out>) at
../../p_work/gcc/passes.c:2382
#14 0x0000000100576f0f in execute_pass_list (pass=<value optimized out>) at
../../p_work/gcc/passes.c:2382
#15 0x000000010032f182 in expand_function (node=<value optimized out>) at
../../p_work/gcc/cgraphunit.c:1601
#16 0x00000001003307ba in compile () at ../../p_work/gcc/cgraphunit.c:1705
#17 0x0000000100330d7f in finalize_compilation_unit () at
../../p_work/gcc/cgraphunit.c:2080
#18 0x000000010051c3cd in write_global_declarations () at
../../p_work/gcc/langhooks.c:323
#19 0x0000000100622891 in compile_file () at ../../p_work/gcc/toplev.c:560
#20 0x00000001006242ec in toplev_main (argc=5, argv=0x7fff5fbfd678) at
../../p_work/gcc/toplev.c:1866
#21 0x000000010000a654 in start (pc=<value optimized out>, bases=0x0) at
../../../p_work/libgcc/unwind-dw2-fde.c:1055
Note that there is an additional ICE for gfortran.dg/pr40587.f on
i686-pc-linux-gnu (see
http://gcc.gnu.org/ml/gcc-testresults/2012-10/msg01902.html ), but I don't know
how to reproduce it on x86_64-apple-darwin10.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
@ 2012-10-18 9:56 ` rguenth at gcc dot gnu.org
2012-10-19 21:58 ` steven at gcc dot gnu.org
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-10-18 9:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|*86*-*-* |i?86-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-10-18
Target Milestone|--- |4.8.0
Ever Confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2012-10-18 09:56:21 UTC ---
Confirmed.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
2012-10-18 9:56 ` [Bug middle-end/54961] " rguenth at gcc dot gnu.org
@ 2012-10-19 21:58 ` steven at gcc dot gnu.org
2012-10-19 23:18 ` dominiq at lps dot ens.fr
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: steven at gcc dot gnu.org @ 2012-10-19 21:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
--- Comment #2 from Steven Bosscher <steven at gcc dot gnu.org> 2012-10-19 21:57:54 UTC ---
Something I'm going to test:
Index: ira-lives.c
===================================================================
--- ira-lives.c (revision 192571)
+++ ira-lives.c (working copy)
@@ -1373,6 +1373,19 @@ process_bb_node_lives (ira_loop_tree_nod
if (bb_has_abnormal_pred (bb))
{
#ifdef STACK_REGS
+ /* Mark all stack mode registers and stack hard registers live
+ so that they will conflict and allocation across the abnormal
+ edge is impossible.
+ Stack registers must be treated as live in the traditional,
+ DF_LR-like sense, because compensation code may have to be
+ introduced on edges. The register allocator treats the stack
+ registers like all other, non-stack registers. It doesn't
+ know that stack shuffling may be required and may allocate
+ a partially available stack reg in ways that result in the
+ need for compensation code on abnormal edges. See PR54961. */
+ EXECUTE_IF_SET_IN_BITMAP (DF_LR_IN (bb), FIRST_PSEUDO_REGISTER, j,
bi)
+ if (IS_STACK_MODE (GET_MODE (regno_reg_rtx[j])))
+ mark_pseudo_regno_live (j);
EXECUTE_IF_SET_IN_SPARSESET (objects_live, px)
{
ira_allocno_t a = OBJECT_ALLOCNO (ira_object_id_map[px]);
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
2012-10-18 9:56 ` [Bug middle-end/54961] " rguenth at gcc dot gnu.org
2012-10-19 21:58 ` steven at gcc dot gnu.org
@ 2012-10-19 23:18 ` dominiq at lps dot ens.fr
2012-10-27 7:06 ` ubizjak at gmail dot com
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: dominiq at lps dot ens.fr @ 2012-10-19 23:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-10-19 23:18:39 UTC ---
> Something I'm going to test:
It does not fix the ICE, at least on x86_64-apple-darwin10.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (2 preceding siblings ...)
2012-10-19 23:18 ` dominiq at lps dot ens.fr
@ 2012-10-27 7:06 ` ubizjak at gmail dot com
2012-10-27 7:11 ` ubizjak at gmail dot com
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ubizjak at gmail dot com @ 2012-10-27 7:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
--- Comment #4 from Uros Bizjak <ubizjak at gmail dot com> 2012-10-27 07:06:25 UTC ---
Steven, has there been any new progress on this PR?
In addition to the failure in this PR, I also get (-O2 -m32) that may be
related to the failure in Comment #0:
FAIL: gfortran.dg/pr40587.f -O (internal compiler error)
FAIL: gfortran.dg/pr40587.f -O (test for excess errors)
with following backtrace:
/home/uros/gcc-svn/trunk/gcc/testsuite/gfortran.dg/pr40587.f:17:0: internal
compiler error: in emit_swap_insn, at reg-stack.c:814
0x8c95c5 emit_swap_insn
../../gcc-svn/trunk/gcc/reg-stack.c:814
0x8ca615 move_for_stack_reg
../../gcc-svn/trunk/gcc/reg-stack.c:1028
0x8cadde subst_stack_regs_pat
../../gcc-svn/trunk/gcc/reg-stack.c:1471
0x8cc125 subst_stack_regs
../../gcc-svn/trunk/gcc/reg-stack.c:2357
0x8cc315 convert_regs_1
../../gcc-svn/trunk/gcc/reg-stack.c:2986
0x8cc315 convert_regs_2
../../gcc-svn/trunk/gcc/reg-stack.c:3121
0x8ccf27 convert_regs
../../gcc-svn/trunk/gcc/reg-stack.c:3156
0x8ccf27 reg_to_stack
../../gcc-svn/trunk/gcc/reg-stack.c:3286
0x8ccf27 rest_of_handle_stack_regs
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (3 preceding siblings ...)
2012-10-27 7:06 ` ubizjak at gmail dot com
@ 2012-10-27 7:11 ` ubizjak at gmail dot com
2012-10-27 13:03 ` steven at gcc dot gnu.org
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ubizjak at gmail dot com @ 2012-10-27 7:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
--- Comment #5 from Uros Bizjak <ubizjak at gmail dot com> 2012-10-27 07:11:00 UTC ---
(In reply to comment #4)
> Steven, has there been any new progress on this PR?
>
> In addition to the failure in this PR, I also get (-O2 -m32) that may be
> related to the failure in Comment #0:
>
> FAIL: gfortran.dg/pr40587.f -O (internal compiler error)
> FAIL: gfortran.dg/pr40587.f -O (test for excess errors)
And:
FAIL: g++.dg/opt/pr39607.C -std=gnu++98 (internal compiler error)
FAIL: g++.dg/opt/pr39607.C -std=gnu++98 (test for excess errors)
FAIL: g++.dg/opt/pr39607.C -std=gnu++11 (internal compiler error)
FAIL: g++.dg/opt/pr39607.C -std=gnu++11 (test for excess errors)
/home/uros/gcc-svn/trunk/gcc/testsuite/g++.dg/opt/pr39607.C: In member function
'AbcIval1d AbcCone::GetLinearParamIval(AbcSurfType*) const':
/home/uros/gcc-svn/trunk/gcc/testsuite/g++.dg/opt/pr39607.C:65:1: internal
compiler error: in emit_swap_insn, at reg-stack.c:814
0x9ffb45 emit_swap_insn
../../gcc-svn/trunk/gcc/reg-stack.c:814
0xa00b95 move_for_stack_reg
../../gcc-svn/trunk/gcc/reg-stack.c:1028
0xa0135e subst_stack_regs_pat
../../gcc-svn/trunk/gcc/reg-stack.c:1471
0xa026a5 subst_stack_regs
../../gcc-svn/trunk/gcc/reg-stack.c:2357
0xa02895 convert_regs_1
../../gcc-svn/trunk/gcc/reg-stack.c:2986
0xa02895 convert_regs_2
../../gcc-svn/trunk/gcc/reg-stack.c:3121
0xa034a7 convert_regs
../../gcc-svn/trunk/gcc/reg-stack.c:3156
0xa034a7 reg_to_stack
../../gcc-svn/trunk/gcc/reg-stack.c:3286
0xa034a7 rest_of_handle_stack_regs
../../gcc-svn/trunk/gcc/reg-stack.c:3328
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (4 preceding siblings ...)
2012-10-27 7:11 ` ubizjak at gmail dot com
@ 2012-10-27 13:03 ` steven at gcc dot gnu.org
2012-10-28 11:45 ` steven at gcc dot gnu.org
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: steven at gcc dot gnu.org @ 2012-10-27 13:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
--- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2012-10-27 13:03:07 UTC ---
(In reply to comment #4)
> Steven, has there been any new progress on this PR?
Workin' on it this weekend.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (5 preceding siblings ...)
2012-10-27 13:03 ` steven at gcc dot gnu.org
@ 2012-10-28 11:45 ` steven at gcc dot gnu.org
2012-10-28 11:54 ` steven at gcc dot gnu.org
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: steven at gcc dot gnu.org @ 2012-10-28 11:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
--- Comment #7 from Steven Bosscher <steven at gcc dot gnu.org> 2012-10-28 11:44:50 UTC ---
The problems of comment #4 and comment #5 are PR39607, a problem that
should be solved in reg-stack.
The problem of comment #0 is a problem in IRA. There is code to prevent
stack registers from living across EDGE_ABNORMAL edges but clearly this
code fails in the pr48757.f test case. I suspect there is a bug in the
splitting or merging of allocno ranges where the ALLOCNO_NO_STACK_REG_P
and ALLOCNO_TOTAL_NO_STACK_REG_P maybe are not properly copied/merged.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (6 preceding siblings ...)
2012-10-28 11:45 ` steven at gcc dot gnu.org
@ 2012-10-28 11:54 ` steven at gcc dot gnu.org
2012-11-09 22:11 ` [Bug middle-end/54961] " steven at gcc dot gnu.org
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: steven at gcc dot gnu.org @ 2012-10-28 11:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |SUSPENDED
--- Comment #8 from Steven Bosscher <steven at gcc dot gnu.org> 2012-10-28 11:54:16 UTC ---
Depends on IRA using DF_LIVE. To be visited later.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (7 preceding siblings ...)
2012-10-28 11:54 ` steven at gcc dot gnu.org
@ 2012-11-09 22:11 ` steven at gcc dot gnu.org
2013-07-27 17:03 ` dominiq at lps dot ens.fr
2013-10-05 13:05 ` dominiq at lps dot ens.fr
10 siblings, 0 replies; 12+ messages in thread
From: steven at gcc dot gnu.org @ 2012-11-09 22:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.8.0 |---
Summary|[4.8 Regression] FAIL: |FAIL: gfortran.dg/pr48757.f
|gfortran.dg/pr48757.f -O | -O (internal compiler
|(internal compiler error) |error) after revision
|after revision 192440 |192440
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (8 preceding siblings ...)
2012-11-09 22:11 ` [Bug middle-end/54961] " steven at gcc dot gnu.org
@ 2013-07-27 17:03 ` dominiq at lps dot ens.fr
2013-10-05 13:05 ` dominiq at lps dot ens.fr
10 siblings, 0 replies; 12+ messages in thread
From: dominiq at lps dot ens.fr @ 2013-07-27 17:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|SUSPENDED |WAITING
--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
This PR disappeared from my tests between revisions 192878 and 193318. Was it
fixed or hidden?
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug middle-end/54961] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440
2012-10-17 20:13 [Bug middle-end/54961] New: [4.8 Regression] FAIL: gfortran.dg/pr48757.f -O (internal compiler error) after revision 192440 dominiq at lps dot ens.fr
` (9 preceding siblings ...)
2013-07-27 17:03 ` dominiq at lps dot ens.fr
@ 2013-10-05 13:05 ` dominiq at lps dot ens.fr
10 siblings, 0 replies; 12+ messages in thread
From: dominiq at lps dot ens.fr @ 2013-10-05 13:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54961
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |FIXED
--- Comment #10 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> This PR disappeared from my tests between revisions 192878 and 193318.
> Was it fixed or hidden?
No answer since two months, closing as fixed.
^ permalink raw reply [flat|nested] 12+ messages in thread
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2012-10-18 9:56 ` [Bug middle-end/54961] " rguenth at gcc dot gnu.org
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