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* [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
@ 2015-02-23 11:15 trippels at gcc dot gnu.org
2015-02-23 12:53 ` [Bug target/65171] " jakub at gcc dot gnu.org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: trippels at gcc dot gnu.org @ 2015-02-23 11:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
Bug ID: 65171
Summary: [5 Regression] r214254 causes thousands of
std::length_errors running boost testsuite on ppc64le
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
CC: wschmidt at gcc dot gnu.org
Host: powerpc64le-unknown-linux-gnu
Target: powerpc64le-unknown-linux-gnu
Build: powerpc64le-unknown-linux-gnu
Created attachment 34842
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34842&action=edit
unreduced testcase
Starting with r214254 thousands of std::length_errors are thrown
during a boost testsuite run on powerpc64le.
ppc64 big-endian is fine.
See: http://www.boost.org/development/tests/develop/developer/summary.html
trippels_power8_gcc-5.0_c++11 (big-endian) vs.
trippels_powerpc64le_gcc-5.0_c++11 (little-endian)
e.g.:
trippels@gcc2-power8 tools % g++ -w -ftemplate-depth-128 -O3 -finline-functions
-Wno-inline -Wall -fPIC -std=c++11 -mcpu=power8 -DBOOST_ALL_NO_LIB=1 -DNDEBUG
-I".." -I"../.." "../libs/sort/test/float_sort_test.cpp"
trippels@gcc2-power8 tools % ./a.out
Running 1 test case...
unknown location(0): fatal error: in "test_main_caller( argc, argv )":
std::length_error: basic_string::assign
../libs/sort/test/float_sort_test.cpp(68): last checkpoint
*** 1 failure detected in test module "Test Program"
Sorry, but reducing seems to be impossible.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
@ 2015-02-23 12:53 ` jakub at gcc dot gnu.org
2015-02-23 15:09 ` rguenth at gcc dot gnu.org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-02-23 12:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Not even by selectively applying __attribute__((target ("optimize-swaps")))
or __attribute__((target ("no-optimize-swaps"))) (if that is supported in
target directives) to bisect where it matters?
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
2015-02-23 12:53 ` [Bug target/65171] " jakub at gcc dot gnu.org
@ 2015-02-23 15:09 ` rguenth at gcc dot gnu.org
2015-02-25 20:10 ` wschmidt at gcc dot gnu.org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-23 15:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |5.0
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
2015-02-23 12:53 ` [Bug target/65171] " jakub at gcc dot gnu.org
2015-02-23 15:09 ` rguenth at gcc dot gnu.org
@ 2015-02-25 20:10 ` wschmidt at gcc dot gnu.org
2015-02-25 22:11 ` wschmidt at gcc dot gnu.org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2015-02-25 20:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
--- Comment #3 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Problem is an invalid swap removal in:
bool boost::test_tools::tt_detail::report_assertion(const
boost::test_tools::as\
sertion_result&, const boost::unit_test::lazy_ostream&,
boost::unit_test::const\
_string, std::size_t, boost::test_tools::tt_detail::tool_level,
boost::test_too\
ls::tt_detail::check_type, std::size_t, ...)
Something going on with subreg handling.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
` (2 preceding siblings ...)
2015-02-25 20:10 ` wschmidt at gcc dot gnu.org
@ 2015-02-25 22:11 ` wschmidt at gcc dot gnu.org
2015-02-25 23:38 ` wschmidt at gcc dot gnu.org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2015-02-25 22:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
--- Comment #4 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
The logic to avoid subregs of TImode wasn't getting executed. I have a patch
that fixes this; doing regression testing and then will get it submitted to the
list. Still working in the background on reducing the test case. :/
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
` (3 preceding siblings ...)
2015-02-25 22:11 ` wschmidt at gcc dot gnu.org
@ 2015-02-25 23:38 ` wschmidt at gcc dot gnu.org
2015-02-26 8:02 ` trippels at gcc dot gnu.org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2015-02-25 23:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
--- Comment #5 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Patch submitted at https://gcc.gnu.org/ml/gcc-patches/2015-02/msg01550.html.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
` (4 preceding siblings ...)
2015-02-25 23:38 ` wschmidt at gcc dot gnu.org
@ 2015-02-26 8:02 ` trippels at gcc dot gnu.org
2015-02-26 14:36 ` wschmidt at gcc dot gnu.org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: trippels at gcc dot gnu.org @ 2015-02-26 8:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
--- Comment #6 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
BTW I get:
FAIL: gcc.target/powerpc/swaps-p8-2.c scan-assembler-not xxpermdi
before and after your patch.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
` (5 preceding siblings ...)
2015-02-26 8:02 ` trippels at gcc dot gnu.org
@ 2015-02-26 14:36 ` wschmidt at gcc dot gnu.org
2015-02-26 18:34 ` wschmidt at gcc dot gnu.org
2015-02-26 18:40 ` wschmidt at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2015-02-26 14:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
--- Comment #7 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Yes, this is unrelated and not really a problem. Something has caused us to
recently start spilling a couple of nonvolatile vector registers to the stack
for this test case, resulting in the failure. I'm going to look into why this
occurred (introduced on 2/13).
Bill
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
` (6 preceding siblings ...)
2015-02-26 14:36 ` wschmidt at gcc dot gnu.org
@ 2015-02-26 18:34 ` wschmidt at gcc dot gnu.org
2015-02-26 18:40 ` wschmidt at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2015-02-26 18:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
--- Comment #8 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Thu Feb 26 17:43:03 2015
New Revision: 221022
URL: https://gcc.gnu.org/viewcvs?rev=221022&root=gcc&view=rev
Log:
2015-02-26 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/65171
* config/rs6000/rs6000.c (rs6000_analyze_swaps): Ensure
instructions with TImode operands are included in the analysis.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/rs6000/rs6000.c
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/65171] [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le
2015-02-23 11:15 [Bug target/65171] New: [5 Regression] r214254 causes thousands of std::length_errors running boost testsuite on ppc64le trippels at gcc dot gnu.org
` (7 preceding siblings ...)
2015-02-26 18:34 ` wschmidt at gcc dot gnu.org
@ 2015-02-26 18:40 ` wschmidt at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2015-02-26 18:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65171
Bill Schmidt <wschmidt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #9 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
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2015-02-23 12:53 ` [Bug target/65171] " jakub at gcc dot gnu.org
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