m68k fails to bootstrap since -ffold-mem-offsets was introduced,
in what looks like wrong-code during stage2.
To restore bootstrap this disables -ffold-mem-offsets on m68k.
It's not ideal, but better than keeping bootstraps broken until
the root cause is debugged and fixed.
Tested with a
When generating RMW logical operations on m68k, the backend
recognizes single-bit operations and rewrites them as bit
instructions on operands adjusted to address the intended byte.
When offsetting the addresses the backend keeps the modes as
SImode, even though the actual access will be in
PR110934 is a problem on m68k where -fzero-call-used-regs -fpic ICEs
when clearing an FP register.
The generic code generates an XFmode move of zero to that register,
which becomes an XFmode load from initialized data, which due to -fpic
uses a non-constant address, which the backend rejects.
On Thu, 4 Jan 2024 14:39:23 -0700, Jeff Law wrote:
> On 1/4/24 02:23, Mikael Pettersson wrote:
> > emit_library_call_value_1 calls emit_push_insn with NULL_TREE
> > for TYPE. Sometimes emit_push_insn needs to assign a temp with
> > that TYPE, which causes a segfault.
> &
On Thu, 4 Jan 2024 14:39:23 -0700, Jeff Law wrote:
> On 1/4/24 02:23, Mikael Pettersson wrote:
> > emit_library_call_value_1 calls emit_push_insn with NULL_TREE
> > for TYPE. Sometimes emit_push_insn needs to assign a temp with
> > that TYPE, which causes a segfault.
> &
Mikael Pettersson
PR target/82420
PR target/111279
* expr.cc (emit_push_insn): If TYPE is NULL compute it
from MODE before calling assign_temp.
gcc/teststuite/
2024-01-03 Mikael Pettersson
PR target/82420
* gcc.target/m68k/pr82420.c: New test
commit rights to I would need assistance applying this.
2023-12-11 Mikael Pettersson
PR target/112413
* config/m68k/linux.h (ASM_RETURN_CASE_JUMP): For
TARGET_LONG_JUMP_TABLE_OFFSETS, reference the jump table
via its label.
* config/m68k/m68kelf.h
If the stack frame only contains an alloca area, then
pdp11_expand_epilogue fails to deallocate it, resulting
in callee-saved registers and the return address being
restored from the wrong stack slots. Fixed by adding
|| cfun->calls_alloca to the condition for deallocating
the frame.
Tested with
On Mon, May 22, 2023 at 3:57 PM Jan-Benedict Glaw wrote:
>
> Hi!
>
> On Mon, 2023-05-22 14:10:48 +0100, Maciej W. Rozycki
> wrote:
> > On Fri, 19 May 2023, Mikael Pettersson wrote:
> > > The background is that I maintain a script to build GCC-based crosses to
gt; > > unsatisfied references to __INTPTR_TYPE__ and __UINTPTR_TYPE__,
> > > caused by these two targets failing to provide glibc-stdint.h.
> > >
> > > Fixed thusly, tested by building crosses, which now succeeds.
> > >
> > > Ok for trunk? (Note I don't
, which now succeeds.
Ok for trunk? (Note I don't have commit rights.)
2023-04-28 Mikael Pettersson
PR target/105525
* config.gcc (vax-*-linux*): Add glibc-stdint.h.
(lm32-*-uclinux*): Likewise.
---
gcc/config.gcc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions
ot;mingw32.h"
+#endif
+
#ifndef IN_RTS
/* For gnat1/gnatbind compilation: cannot use unwind.h, as it is for the
target. So mimic configure...
From 44a276e7900a506ee4b6f85d25ae5d96a11bd91e Mon Sep 17 00:00:00 2001
From: Mikael Pettersson
Date: Mon, 8 Mar 2021 22:31:16 +0100
Sub
On Sun, Jan 10, 2021 at 2:04 PM Mikael Pettersson wrote:
>
> On Sun, Jan 10, 2021 at 11:57 AM Arnaud Charlet wrote:
> >
> > > This fixes a compilation error preventing bootstrap with Ada on
> > > x86_64-pc-cygwin. See PR bootstrap/94918 for details.
> > >
&
pdated.
> >
> > Thanks, here's the revised patch.
>
> OK, thanks.
I forgot to mention that I don't have commit rights to gcc, so can
someone please commit this for me? Thanks.
>
> > gcc/ada/
> >
> > 2021-02-05 Mikael Pettersson
> >
> >
ppens even with the very latest binutils master.
Fixed by updating SUBTARGET_OVERRIDE_OPTIONS to set dwarf_version to 4
unless the user explicitly requested another version. I see some other
targets did the same.
Tested on Cygwin64 and mingw-w64.
Ok for master?
2021-02-08 Mikael Pettersson
oes not declare it, causing a hard error.
> >
> > Fixed by defining _GNU_SOURCE before including .
> >
> > Ok for the master branch?
> >
> > gcc/ada/
> >
> > 2021-02-03 Mikael Pettersson
> >
> > PR bootstrap/98590
> >
for the master branch?
gcc/ada/
2021-02-03 Mikael Pettersson
PR bootstrap/98590
* cstreams.c: Ensure fileno_unlocked() is visible on Cygwin.
diff --git a/gcc/ada/cstreams.c b/gcc/ada/cstreams.c
index 4e00dedbbd6..9d2f41c5269 100644
--- a/gcc/ada/cstreams.c
+++ b/gcc/ada/cstreams.c
e fix
matches what Ada's mingw32.h does.
Tested by bootstrapping this and the preliminary workaround for
PR98590 on x86_64-pc-cygwin.
Ok for master and branches?
libgcc/
2021-01-10 Mikael Pettersson
PR bootstrap/94918
* unwind-generic.h (__SEH__): Prevent windows.h from includin
it applied.
Tested by bootstrapping this and the preliminary workaround for
PR98590 on x86_64-pc-cygwin.
Ok for master and branches?
(Patch also attached to protect it against gmail formatting.)
gcc/ada/
2021-01-10 Mikael Pettersson
PR bootstrap/94918
* raise-gcc.c: (__SEH__
1
with Ada on x86_64-pc-cygwin. See PR bootstrap/94918 for details.
Tested by bootstrapping on x86_64-pc-cygwin, and since it touches code
shared with mingw, also by building a cross to x86_64-w64-mingw32.
Ok for master and gcc-10 branch?
(I don't have commit rights, so I will need assistanc
-10 branch?
(I don't have commit rights, so I will need assistance with that.)
(The patch is also attached, since gmail _will_ corrupt this text.)
gcc/ada/
2020-05-02 Mikael Pettersson
PR bootstrap/94918
* mingw32.h: Prevent windows.h from including emmintrin.h on Cygwin64
On Wed, Nov 20, 2019 at 3:16 PM Bernd Schmidt wrote:
>
> On 11/20/19 2:50 PM, Mikael Pettersson wrote:
> > On Mon, Nov 18, 2019 at 9:57 PM Mikael Pettersson
> > wrote:
> >>
> >> On Mon, Nov 18, 2019 at 8:31 PM Bernd Schmidt
> >> wrote:
&
On Mon, Nov 18, 2019 at 9:57 PM Mikael Pettersson wrote:
>
> On Mon, Nov 18, 2019 at 8:31 PM Bernd Schmidt wrote:
> >
> > Hi Mikael,
> >
> > > This fixed the problem, thanks.
> >
> > Could you also run the testsuite to see if you can reproduce t
On Mon, Nov 18, 2019 at 8:31 PM Bernd Schmidt wrote:
>
> Hi Mikael,
>
> > This fixed the problem, thanks.
>
> Could you also run the testsuite to see if you can reproduce the
> g++.old-deja failures Andreas reported?
Yes, but it will probably take another week before the native
bootstrap (on
On Sun, Nov 17, 2019 at 5:57 PM Andreas Schwab wrote:
>
> On Nov 17 2019, Mikael Pettersson wrote:
>
> > /tmp/ccJA1qws.s:4828: Error: operands mismatch -- statement `seq %a1'
> > ignored
> > /tmp/ccJA1qws.s:7344: Error: operands mismatch -- statement `seq %a1'
>
On Wed, 13 Nov 2019 14:04:59 +0100, Bernd Schmidt
wrote:
> This is a set of patches to convert m68k so that it no longer uses cc0.
Thank you for doing this. I attempted a native bootstrap of
gcc-10-20191110 (r278028) plus the five patches posted so far on
m68k-linux (aranym), but it failed in
Jeff Law writes:
> On 01/06/2017 09:08 AM, Mikael Pettersson wrote:
> > This fixes / works-around the wrong-code PR57583 on M68K, caused by
> > overflowing the 16-bit jump table offsets the backend uses.
> >
> > Ideally the backend should define CASE_VECTOR_SHORTE
"mednafen"
with it, which previously failed; I also tested earlier versions.
Is this Ok for trunk?
/Mikael
gcc/
2017-01-06 Mikael Pettersson <mikpeli...@gmail.com>
PR target/57583
* config/m68k/m68k.opt (LONG_JUMP_TABLE_OFFSETS): New option.
* con
.
Is this Ok for trunk and 5/6 branches?
(Note: I don't have commit rights so if this is approved I would need
help to get it applied.)
Thanks,
/Mikael
libsanitizer/
2016-09-12 Mikael Pettersson <mikpeli...@gmail.com>
PR sanitizer/67899
* sanitizer_
Jake Hamby writes:
> As an added bonus, I see that my patch set also included an old m68k patch
> that had been sitting in my tree, which fixes a crash when -m68040 is
> defined.
> I may have submitted it to port-m68k before. It hasn't been tested with the
> new compiler either. Here's that
Michael Matz writes:
> > > FWIW: signal handlers need no consideration (if they were allowed to
> > > inspect/alter global reg vars we would have lost and no improvement on
> > > fixed_regs[] could be done). They are explicitely documented to not be
> > > able to access global reg vars.
Bernd Edlinger writes:
Hi,
are there any more comments on this?
I would like to apply the patch as is, unless we find a
a way to get to a test case, maybe with a cross-compiler,
where the MODE_ALIGNMENT is different from MODE_BITSIZE.
Currently, I think that does not happen.
Richard Biener writes:
On Sun, Jan 25, 2015 at 3:25 PM, Mikael Pettersson mikpeli...@gmail.com
wrote:
This backports the fixes for PR middle-end/57748, a wrong-code and ICE
regression, to the 4.8 branch.
Tested extensively on x86_64, powerpc64, sparc64, ARMv{5,7}, and m68k
This backports the fixes for PR middle-end/57748, a wrong-code and ICE
regression, to the 4.8 branch.
Tested extensively on x86_64, powerpc64, sparc64, ARMv{5,7}, and m68k.
Ok for 4.8?
(I don't have commit rights.)
/Mikael
gcc/
2015-01-25 Mikael Pettersson mikpeli...@gmail.com
Thomas Preud'homme writes:
In the code dealing with folding of structure and union initialization,
there is a
check that the size of the constructor is the same as the field being read.
However, in the case of bitfield this test can be wrong because it relies on
TYPE_SIZE to get the
John David Anglin writes:
Because the atomic sync functions in config/pa/linux-atomic.c are not
lock free, we need to use
__kernel_cmpxchg for the __sync_lock_release. This was found in
glibc's pthread_spin_unlock
implementation.
Tested on hppa-unknown-linux-gnu. Committed to
Richard Biener writes:
The following is my current idea on progressing on the HOST_WIDE_INT
removal
...
And HOST_WIDEST_FAST_INT for which
I don't have a very good suggestion other than either keeping
it, unconditionally using 'long' (thus simply remove
Eric Botcazou writes:
Not clear to me, (2U i) should be zero if the shift count is masked.
2U 31 is undefined behavior on those targets.
Precisely not, or else we are not talking about the same notion of masking.
I believe Jakub is referring to the following in the C standard:
for powerpc64le on IBM's 4.8 branch.
Ok for 4.8 branch?
Thanks,
/Mikael
(I don't have commit rights, but Bill has agreed to do the commit if
this backport is approved.)
gcc/
2014-03-15 Mikael Pettersson mikpeli...@gmail.com
Backport from mainline:
2013-06-20 Joern Rennecke
Jeff Law writes:
On 09/28/13 09:30, Mikael Pettersson wrote:
This patch fixes PR58369, an ICE in subreg_get_info when compiling
boost for m68k-linux.
choose_reload_regs attempts to reload a DFmode (8-byte) reg, finds
an XFmode (12-byte) reg in last_reg, and calls
backend really wants that, and I
think it just papers over a generic bug.]
Tested with trunk and 4.8 on {m68k,sparc64,powerpc64}-linux (big-endian),
and on x86_64-linux/armv5tel-linux-gnueabi (little-endian). No regressions.
Comments?
Is this Ok for trunk?
gcc/
2013-09-28 Mikael Pettersson
Kai Tietz writes:
Hello,
this patch fixes a wrong assumption in c_builtin_function_ext_scope.
The check for never being called on preexisting symbols (with
meaning), isn't correct as the turning on of builtins via pragmas
wasn't considered.
The following sample demonstrate this
Jeff Law writes:
* cse.c (fold_rtx) second case CC0: If prev_insn_cc0 is NULL
don't call equiv_constant on it.
I can't help but feel something different needs to be done here. It's
always been the case that those two insns are expected to be contiguous
and there's going to be
, no regressions. This patch has
been in a 4.7-based production compiler on m68k-linux since early 2013.
Ok for trunk and 4.8?
[If approved I'll need help to commit it as I don't have commit rights.]
gcc/
2013-08-28 Mikael Pettersson mi...@it.uu.se
PR ada/48835
* cse.c (fold_rtx) first case
compilers on m68k-linux since early 2012,
and in a 4.7-based compiler since early 2013.
Ok for trunk and 4.8?
[If approved I'll need help to commit it as I don't have commit rights.]
gcc/
2013-08-28 Mikael Pettersson mi...@it.uu.se
PR rtl-optimization/49847
* cse.c (fold_rtx
Ramana Radhakrishnan writes:
Hi,
This fixes up the issues with PR target/19599 and the issues we've had
around it.
...
2013-07-25 Ramana Radhakrishnan ramana.radhakrish...@arm.com
PR target/19599
PR target/57731
PR target/57748
Are you sure
Jakub Jelinek writes:
On Thu, Apr 25, 2013 at 11:47:02PM +0200, Jakub Jelinek wrote:
This patch adds folding of constant arguments v and v, which helps to
optimize the testcase from the PR back into constant store after vectorized
loop is unrolled.
As this fixes a regression on the
Benjamin De Kosnik writes:
Hey! Here is the first pass at the 4.8 porting documentation.
..
+ memset(p1, 0, sizeof(p1)); // error, use memcopy
s/memcopy/memcpy/
+ memset(p1, 0, sizeof(p1)); // error, use memcopy
likewise
+ pTo fix, either use memcopy or dereference the last
Alexander Monakov writes:
On Wed, 13 Mar 2013, Mikael Pettersson wrote:
Benjamin De Kosnik writes:
Hey! Here is the first pass at the 4.8 porting documentation.
..
+ memset(p1, 0, sizeof(p1)); // error, use memcopy
s/memcopy/memcpy/
It doesn't make
John David Anglin writes:
On Sun, 18 Nov 2012, Richard Sandiford wrote:
HOST_WIDE_INT start = bitpos_ - (bitpos_ % unit);
if (bitregion_start_ start bitregion_start_)
break;
- if (bitregion_end_ start + unit bitregion_end_ + 1)
+ if (start + unit
Ulrich Weigand writes:
Richard Guenther wrote:
In this testcase the alignment of arr[i] should be irrelevant - it is
not part of
the stmts that are going to be vectorized. But of course this may be
simply an odering issue in how we analyze data-references / statements
in
Richard Guenther writes:
On Tue, Jun 19, 2012 at 11:36 PM, Mikael Pettersson mi...@it.uu.se wrote:
Richard Guenther writes:
On Fri, Jun 15, 2012 at 5:00 PM, Ulrich Weigand uweig...@de.ibm.com
wrote:
Richard Guenther wrote:
On Fri, Jun 15, 2012 at 3:13 PM, Ulrich Weigand
Richard Guenther writes:
On Fri, Jun 15, 2012 at 5:00 PM, Ulrich Weigand uweig...@de.ibm.com wrote:
Richard Guenther wrote:
On Fri, Jun 15, 2012 at 3:13 PM, Ulrich Weigand uweig...@de.ibm.com
wrote:
However, there is a second case where we need to check every pass: if
we're not
.
OK for trunk and affected branches?
(If approved I'll need from someone with svn write access to get it applied.)
/Mikael
libffi/
2012-02-23 Mikael Pettersson mi...@it.uu.se
PR libffi/52223
* Makefile.am (FLAGS_TO_PASS): Define.
* Makefile.in: Regenerate.
--- gcc
Jakub Jelinek writes:
On Sun, Dec 11, 2011 at 02:48:52PM +0100, Mikael Pettersson wrote:
This patch, r182112 on 4.6 branch, caused a test suite regression on
arm-linux-gnueabi:
+FAIL: gcc.c-torture/execute/20050713-1.c compilation, -O2 (internal
compiler error)
+UNRESOLVED
Jakub Jelinek writes:
Hi!
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to 4.6
branch.
2011-12-09 Jakub Jelinek ja...@redhat.com
Backport from mainline
2011-12-08 Jakub Jelinek ja...@redhat.com
PR tree-optimization/51466
*
Jakub Jelinek writes:
Hi!
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to 4.6
branch:
...
2011-12-08 Jakub Jelinek ja...@redhat.com
Backport from mainline
2011-12-05 Jakub Jelinek ja...@redhat.com
Eric Botcazou
Hans-Peter Nilsson writes:
BTW, on the topic, I cringe whenever I
see futexes expressed as plain int, they absolutely have to
have at least natural alignment which is not always true e.g. in
structs. People, please keep the atomic types
target-overridable in libraries.
+1 for
Richard Henderson writes:
On 11/23/2011 06:46 AM, Mikael Pettersson wrote:
+FAIL: c-c++-common/gomp/atomic-10.c scan-tree-dump-times ompexp
__atomic_fetch_add 4
+FAIL: c-c++-common/gomp/atomic-3.c scan-tree-dump-times ompexp xyzzy, 4
1
+FAIL: c-c++-common/gomp/atomic-9.c scan
Mikael Pettersson writes:
Richard Henderson writes:
The first patch adds support for the m68k-linux syscall. The second
patch adds native support for the m680[2346]0 CAS instruction, and
the m68000/Coldfire TAS instruction.
Both tested only via cross-compile
Richard Henderson writes:
The first patch adds support for the m68k-linux syscall. The second
patch adds native support for the m680[2346]0 CAS instruction, and
the m68000/Coldfire TAS instruction.
Both tested only via cross-compile.
Please test...
Thanks Richard. I'm
Julian Brown writes:
Hi,
This patch fixes computed gotos on m68k, and probably other targets too
(the fix is in the middle end). Several tests fail at present with -O3
-fomit-frame-pointer.
This is the same bug as PR47918. As described in that PR trail, the bug
can be triggered also
Nicola Pero writes:
(I don't have svn write access so I'll need someone else to commit it if
it's approved.)
I can apply it for you. But ... do you have a copyright assignment in place
for contributions to GCC ? The patch looks small and trivial enough that
I think I can apply it
?
(I don't have svn write access so I'll need someone else to commit it if
it's approved.)
/Mikael
gcc/objc/
2011-10-16 Mikael Pettersson mi...@it.uu.se
PR objc/50743
* objc-act.c (check_duplicates): Cast TREE_VEC_LENGTH result
to size_t to avoid signed/unsigned comparison
/impossible 'comp' values.
Ok for trunk? (I don't have svn write access.)
/Mikael
gcc/
2011-08-20 Mikael Pettersson mi...@it.uu.se
PR bootstrap/50218
* tree-ssa-loop-ivopts.c (determine_use_iv_cost_condition): Initialize
comp.
--- gcc-4.7-20110827/gcc/tree-ssa-loop-ivopts.c
access so I'll need help to commit it.
/Mikael
gcc/
2011-08-22 Mikael Pettersson mi...@it.uu.se
PR bootstrap/50146
* ira-color.c (assign_hard_reg): Move saved_nregs declaration
to #ifndef HONOR_REG_ALLOC_ORDER block.
--- gcc-4.7-20110820/gcc/ira-color.c.~1
. Pre-approved by Jan Hubicka
in the PR trail.
Ok for trunk? (I don't have svn write access.)
(The warning is only visible with the C FE due to an unrelated C++ FE
diagnostics bug, which I've filed as PR50012.)
/Mikael
gcc/
2011-08-08 Mikael Pettersson mi...@it.uu.se
PR tree
Andreas Schwab writes:
Mikael Pettersson mi...@it.uu.se writes:
2011-07-28 Mikael Pettersson mi...@it.uu.se
PR target/47908
* config/m68k/m68k.c (m68k_override_options_after_change): New function.
Disable instruction scheduling for non-ColdFire targets
for trunk and 4.6?
(4.5 and 4.4 need a slightly different fix which I can provide if needed.)
/Mikael
gcc/
2011-07-28 Mikael Pettersson mi...@it.uu.se
PR target/47908
* config/m68k/m68k.c (m68k_override_options_after_change): New function.
Disable instruction scheduling
Mikael Pettersson mi...@it.uu.se
PR tree-optimization/49243
* calls.c (setjmp_call_p): Also check if fndecl has the
returns_twice attribute.
gcc/testsuite/
2011-06-02 Mikael Pettersson mi...@it.uu.se
PR tree-optimization/49243
* gcc.dg/pr49243.c: New
Richard Sandiford writes:
Andreas Krebbel kreb...@linux.vnet.ibm.com writes:
On 03/22/2011 06:48 PM, Richard Henderson wrote:
Ok. Watch out for other target problems this week.
This unfortunately broke bootstrap on s390.
This is PR 48263. Since it seems to be affecting
Richard Sandiford writes:
Mikael Pettersson mi...@it.uu.se writes:
Richard Sandiford writes:
Andreas Krebbel kreb...@linux.vnet.ibm.com writes:
On 03/22/2011 06:48 PM, Richard Henderson wrote:
Ok. Watch out for other target problems this week
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