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* [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass
@ 2015-03-20 10:36 ktkachov at gcc dot gnu.org
2015-03-20 10:37 ` [Bug target/65489] " ktkachov at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-03-20 10:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65489
Bug ID: 65489
Summary: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on
arm-none-eabi in hoist pass
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: ktkachov at gcc dot gnu.org
Target: arm*
As reported at:
https://gcc.gnu.org/ml/gcc-patches/2015-03/msg00949.html
The testcase gcc.c-torture/execute/pr65427.c ICEs on arm at -Os with:
0x7e6f11 process_insert_insn
$TOP/gcc/gcse.c:2174
0x7e8a80 insert_insn_end_basic_block
$TOP/gcc/gcse.c:2196
0x7eab01 hoist_code
$TOP/gcc/gcse.c:3492
0x7eab01 one_code_hoisting_pass
$TOP/gcc/gcse.c:3722
0x7eab01 execute_rtl_hoist
$TOP/gcc/gcse.c:4212
0x7eab01 execute
$TOP/gcc/gcse.c:4293
The ICE is unrelated to that PR and is just exposed by the new testcase.
I can reproduce it with on arm-none-eabi with -Os -mfloat-abi=hard
-mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/65489] [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass
2015-03-20 10:36 [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass ktkachov at gcc dot gnu.org
@ 2015-03-20 10:37 ` ktkachov at gcc dot gnu.org
2015-03-31 13:10 ` [Bug target/65489] [5 " rguenth at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-03-20 10:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65489
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2015-03-20
Known to work| |4.9.3
Assignee|unassigned at gcc dot gnu.org |ktkachov at gcc dot gnu.org
Target Milestone|--- |5.0
Ever confirmed|0 |1
Known to fail| |5.0
--- Comment #1 from ktkachov at gcc dot gnu.org ---
I'm working on a fix. I think the arm backend implementation of
TARGET_LEGITIMATE_CONSTANT_P is at fault
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/65489] [5 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass
2015-03-20 10:36 [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass ktkachov at gcc dot gnu.org
2015-03-20 10:37 ` [Bug target/65489] " ktkachov at gcc dot gnu.org
@ 2015-03-31 13:10 ` rguenth at gcc dot gnu.org
2015-04-07 10:18 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-03-31 13:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65489
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/65489] [5 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass
2015-03-20 10:36 [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass ktkachov at gcc dot gnu.org
2015-03-20 10:37 ` [Bug target/65489] " ktkachov at gcc dot gnu.org
2015-03-31 13:10 ` [Bug target/65489] [5 " rguenth at gcc dot gnu.org
@ 2015-04-07 10:18 ` rguenth at gcc dot gnu.org
2015-04-07 10:20 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-04-07 10:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65489
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ping? If TARGET_LEGITIMATE_CONSTANT_P is at fault isn't this a latent issue
also present on branches?
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/65489] [5 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass
2015-03-20 10:36 [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass ktkachov at gcc dot gnu.org
` (2 preceding siblings ...)
2015-04-07 10:18 ` rguenth at gcc dot gnu.org
@ 2015-04-07 10:20 ` rguenth at gcc dot gnu.org
2015-04-07 10:24 ` ktkachov at gcc dot gnu.org
2015-04-07 10:28 ` ktkachov at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-04-07 10:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65489
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
A posted patch was approved but not yet checked in.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/65489] [5 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass
2015-03-20 10:36 [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass ktkachov at gcc dot gnu.org
` (3 preceding siblings ...)
2015-04-07 10:20 ` rguenth at gcc dot gnu.org
@ 2015-04-07 10:24 ` ktkachov at gcc dot gnu.org
2015-04-07 10:28 ` ktkachov at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-07 10:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65489
--- Comment #4 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Tue Apr 7 10:24:19 2015
New Revision: 221892
URL: https://gcc.gnu.org/viewcvs?rev=221892&root=gcc&view=rev
Log:
[ARM] PR 65489: Accept VSTRUCT constants in arm_legitimate_constant_p
PR target/65489
* config/arm/arm.c (arm_legitimate_constant_p_1): Remove restriction
on constants for NEON VSTRUCT modes.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/arm/arm.c
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/65489] [5 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass
2015-03-20 10:36 [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass ktkachov at gcc dot gnu.org
` (4 preceding siblings ...)
2015-04-07 10:24 ` ktkachov at gcc dot gnu.org
@ 2015-04-07 10:28 ` ktkachov at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-07 10:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65489
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from ktkachov at gcc dot gnu.org ---
Fixed on trunk.
I couldn't get any testcase to fail from this issue on the other branches, so I
can't confirm that it's present there.
If someone manages to reproduce it there, please reopen this or a new PR
^ permalink raw reply [flat|nested] 7+ messages in thread
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2015-03-20 10:36 [Bug target/65489] New: [5.0 Regression] Testcase for PR 65427 ICEs at -Os on arm-none-eabi in hoist pass ktkachov at gcc dot gnu.org
2015-03-20 10:37 ` [Bug target/65489] " ktkachov at gcc dot gnu.org
2015-03-31 13:10 ` [Bug target/65489] [5 " rguenth at gcc dot gnu.org
2015-04-07 10:18 ` rguenth at gcc dot gnu.org
2015-04-07 10:20 ` rguenth at gcc dot gnu.org
2015-04-07 10:24 ` ktkachov at gcc dot gnu.org
2015-04-07 10:28 ` ktkachov at gcc dot gnu.org
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