* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
@ 2015-10-19 20:54 ` ubizjak at gmail dot com
2015-10-20 5:05 ` zsojka at seznam dot cz
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: ubizjak at gmail dot com @ 2015-10-19 20:54 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Some parts of gcc still assume that MS_ABI stack is always aligned to 128bits.
Proposed patch:
--cut here--
@@ -11283,7 +11296,8 @@ ix86_compute_frame_layout (struct ix86_frame *fram
function prologues and leaf. */
if ((TARGET_64BIT_MS_ABI && crtl->preferred_stack_boundary < 128)
&& (!crtl->is_leaf || cfun->calls_alloca != 0
- || ix86_current_function_calls_tls_descriptor))
+ || ix86_current_function_calls_tls_descriptor
+ || ix86_incoming_stack_boundary < 128))
{
crtl->preferred_stack_boundary = 128;
crtl->stack_alignment_needed = 128;
--cut here--
>From gcc-bugs-return-499973-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 19 21:09:57 2015
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/68019] ICE on rank mismatch of implied-shape array of user-defined type
Date: Mon, 19 Oct 2015 21:09:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idh019
--- Comment #2 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Mon Oct 19 21:09:21 2015
New Revision: 229003
URL: https://gcc.gnu.org/viewcvs?rev"9003&root=gcc&view=rev
Log:
2015-10-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/68019
* decl.c (add_init_expr_to_sym): Remove an assert() to allow an error
message to be issued.
2015-10-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/68019
* gfortran.dg/pr68019.f90: new test.
Added:
trunk/gcc/testsuite/gfortran.dg/pr68019.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/decl.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
2015-10-19 20:54 ` [Bug target/68018] " ubizjak at gmail dot com
@ 2015-10-20 5:05 ` zsojka at seznam dot cz
2015-10-20 8:10 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: zsojka at seznam dot cz @ 2015-10-20 5:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
--- Comment #2 from Zdenek Sojka <zsojka at seznam dot cz> ---
I am also seeing this (or another in ix86_compute_frame_layout) ICE when
running the gfortran testsuite. Again with -mstackrealing. I will post the
testcase when I get home.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
2015-10-19 20:54 ` [Bug target/68018] " ubizjak at gmail dot com
2015-10-20 5:05 ` zsojka at seznam dot cz
@ 2015-10-20 8:10 ` rguenth at gcc dot gnu.org
2015-10-20 8:22 ` ubizjak at gmail dot com
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-10-20 8:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |6.0
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
` (2 preceding siblings ...)
2015-10-20 8:10 ` rguenth at gcc dot gnu.org
@ 2015-10-20 8:22 ` ubizjak at gmail dot com
2015-10-21 8:44 ` uros at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: ubizjak at gmail dot com @ 2015-10-20 8:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Zdenek Sojka from comment #2)
> I am also seeing this (or another in ix86_compute_frame_layout) ICE when
> running the gfortran testsuite. Again with -mstackrealing. I will post the
> testcase when I get home.
-mstackrealign is a new functionality on MS_ABI targets, and there are some
places in the compiler that assume that these targets are always aligned to
16bytes. This alignment is in fact mandated by ABI, and all deviations can be
considered ABI violations. However, we can relax this restriction in order to
handle rough applications that misalign the stack, but this should in general
be an exception, not the rule.
That said, even if -mstackrealign can be declared as unsupported on MS_ABI
targets, the infrastructure handles realignment just fine also for MS_ABI
targets, we just need to enable correct code paths when incoming stack boundary
is less than 16 bytes. This is exactly what the patch in comment #1 does.
BTW: I'm not in the position to test MS_ABI targets thoroughly, so I'd ask you
to please conduct your tests with the patch from Comment #1.
>From gcc-bugs-return-500007-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 20 08:25:33 2015
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/68017] [5 Regression] ICE on valid code at -O3 with -g enabled on x86_64-linux-gnu: cannot update SSA form
Date: Tue, 20 Oct 2015 08:25:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2015-10-20
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Summary|ICE on valid code at -O3 |[5 Regression] ICE on valid
|with -g enabled on |code at -O3 with -g enabled
|x86_64-linux-gnu: cannot |on x86_64-linux-gnu: cannot
|update SSA form |update SSA form
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. tailcall does
/* Remove the code after call_gsi that will become unreachable. The
possibly unreachable code in other blocks is removed later in
cfg cleanup. */
gsi = t->call_gsi;
gsi_next (&gsi);
while (!gsi_end_p (gsi))
{
gimple *t = gsi_stmt (gsi);
/* Do not remove the return statement, so that redirect_edge_and_branch
sees how the block ends. */
if (gimple_code (t) == GIMPLE_RETURN)
break;
gsi_remove (&gsi, true);
release_defs (t);
}
but for proper debug handling it needs to remove the stmts backwards.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
` (3 preceding siblings ...)
2015-10-20 8:22 ` ubizjak at gmail dot com
@ 2015-10-21 8:44 ` uros at gcc dot gnu.org
2015-10-21 19:37 ` zsojka at seznam dot cz
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: uros at gcc dot gnu.org @ 2015-10-21 8:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
--- Comment #4 from uros at gcc dot gnu.org ---
Author: uros
Date: Wed Oct 21 08:43:44 2015
New Revision: 229120
URL: https://gcc.gnu.org/viewcvs?rev=229120&root=gcc&view=rev
Log:
PR target/68018
* config/i386/i386.c (ix86_compute_frame_layout): Realign the stack
for 64-bit MS_ABI targets also when default incoming stack boundary
is overriden.
testsuite/ChangeLog:
PR target/68018
* gcc.target/i386/pr68018.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr68018.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
` (4 preceding siblings ...)
2015-10-21 8:44 ` uros at gcc dot gnu.org
@ 2015-10-21 19:37 ` zsojka at seznam dot cz
2015-10-22 6:52 ` uros at gcc dot gnu.org
2015-10-22 7:55 ` ubizjak at gmail dot com
7 siblings, 0 replies; 9+ messages in thread
From: zsojka at seznam dot cz @ 2015-10-21 19:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
--- Comment #5 from Zdenek Sojka <zsojka at seznam dot cz> ---
I did a test run with r229094 + the patch applied, and there are no ICEs. All
the ICEs archived from older runs are gone, and no new ones are introduced (eg.
everything that failed in the past now compiles fine). I can only test for
ICEs, not for exec failures.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
` (5 preceding siblings ...)
2015-10-21 19:37 ` zsojka at seznam dot cz
@ 2015-10-22 6:52 ` uros at gcc dot gnu.org
2015-10-22 7:55 ` ubizjak at gmail dot com
7 siblings, 0 replies; 9+ messages in thread
From: uros at gcc dot gnu.org @ 2015-10-22 6:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
--- Comment #6 from uros at gcc dot gnu.org ---
Author: uros
Date: Thu Oct 22 06:52:00 2015
New Revision: 229162
URL: https://gcc.gnu.org/viewcvs?rev=229162&root=gcc&view=rev
Log:
Backport from mainline
2015-10-21 Uros Bizjak <ubizjak@gmail.com>
PR target/68018
* config/i386/i386.c (ix86_compute_frame_layout): Realign the stack
for 64-bit MS_ABI targets also when default incoming stack boundary
is overriden.
testsuite/ChangeLog:
Backport from mainline
2015-10-21 Uros Bizjak <ubizjak@gmail.com>
PR target/68018
* gcc.target/i386/pr68018.c: New test.
Backport from mainline
2015-10-21 Uros Bizjak <ubizjak@gmail.com>
PR target/68018
* config/i386/i386.c (ix86_compute_frame_layout): Realign the stack
for 64-bit MS_ABI targets also when default incoming stack boundary
is overriden.
testsuite/ChangeLog:
Backport from mainline
2015-10-21 Uros Bizjak <ubizjak@gmail.com>
PR target/68018
* gcc.target/i386/pr68018.c: New test.
Added:
branches/gcc-5-branch/gcc/testsuite/gcc.target/i386/pr68018.c
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/config/i386/i386.c
branches/gcc-5-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/68018] [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign
2015-10-19 17:28 [Bug target/68018] New: [6 Regression] ICE: in ix86_compute_frame_layout, at config/i386/i386.c:11308 with -mstackrealign zsojka at seznam dot cz
` (6 preceding siblings ...)
2015-10-22 6:52 ` uros at gcc dot gnu.org
@ 2015-10-22 7:55 ` ubizjak at gmail dot com
7 siblings, 0 replies; 9+ messages in thread
From: ubizjak at gmail dot com @ 2015-10-22 7:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68018
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
Target Milestone|6.0 |5.3
--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
Fixed.
>From gcc-bugs-return-500251-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 22 08:12:39 2015
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From: "paolo.carlini at oracle dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/67989] [REGRESSION] g++ ICE on armel valid code
Date: Thu, 22 Oct 2015 08:12:00 -0000
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Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenther at suse dot de
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
For the record: given the actual error, can't be one of my two C++ front-end
patches. I'm also pretty sure isn't a C++ front-end issue at all.
Richard, sorry for bothering, can you have a look?
^ permalink raw reply [flat|nested] 9+ messages in thread