--- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-09-23
00:11 ---
Caused by...
Author: jsm28
Date: Wed Sep 22 20:19:39 2010
New Revision: 164532
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=164532
Log:
* opts-common.c (prune_options): Make static. Work
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-22
02:56 ---
(In reply to comment #4)
Fixed.
The new trunk/gcc/testsuite/gcc.target/i386/pr45739.c erroneously fails on
x86_64-apple-darwin10 as ...
FAIL: gcc.target/i386/pr45739.c scan-assembler-not por
since
--- Comment #6 from howarth at nitro dot med dot uc dot edu 2010-09-22
03:10 ---
My mistake... dg-prune-output is insufficient to prevent scan-assembler-not
from accidentally matching on live_support in the intel darwin assembly.
--
howarth at nitro dot med dot uc dot edu changed
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet: x86_64-apple-darwin10
GCC
--- Comment #1 from howarth at nitro dot med dot uc dot edu 2010-09-20
00:20 ---
Created an attachment (id=21839)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21839action=view)
preprocessed source file for ext/stdio_sync_filebuf/char/1.cc at -m64
--
http://gcc.gnu.org
--- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-09-20
00:21 ---
Created an attachment (id=21840)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21840action=view)
assembly file for ext/stdio_sync_filebuf/char/1.cc at -m64
--
http://gcc.gnu.org/bugzilla
--- Comment #3 from howarth at nitro dot med dot uc dot edu 2010-09-20
00:26 ---
On x86_64-apple-darwin10 at -m64, we have...
nm libstdc++.6.dylib | grep xsgetn
00041f50 t
__ZN9__gnu_cxx18stdio_sync_filebufIcSt11char_traitsIcEE6xsgetnEPcl
00041eb0 t
--- Comment #4 from howarth at nitro dot med dot uc dot edu 2010-09-20
02:57 ---
Regression caused by...
Author: hubicka
Date: Sat Sep 18 21:25:29 2010
New Revision: 164402
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=164402
Log:
PR tree-optimization/45605
at
-m32 for-fPIC
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet
--- Comment #1 from howarth at nitro dot med dot uc dot edu 2010-09-18
15:01 ---
Created an attachment (id=21829)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21829action=view)
assembly file for /gcc.target/i386/pad-3.c at -m32 on x86_64-apple-darwin10
Assembly file generated
--- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-09-18
15:02 ---
Created an attachment (id=21830)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21830action=view)
preprocessed source file for /gcc.target/i386/pad-3.c at -m32 on
x86_64-apple-darwin10
--
http
--- Comment #4 from howarth at nitro dot med dot uc dot edu 2010-09-18
16:12 ---
(In reply to comment #3)
Does adding -fno-pic work on Darwin?
Yes, -fno-pic also suppresses the nop's in the testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45719
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-17
14:21 ---
Should we just XFAIL this on darwin then?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44776
--- Comment #9 from howarth at nitro dot med dot uc dot edu 2010-09-14
23:27 ---
ICEs are atill present for both strncmp-1.c and reduced testcase on
x86_64-apple-darwin10 at r164287.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45230
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-13
19:13 ---
I can confirm that the change...
Index: gcc/testsuite/g++.dg/torture/pr44972.C
===
--- gcc/testsuite/g++.dg/torture/pr44972.C (revision
--- Comment #7 from howarth at nitro dot med dot uc dot edu 2010-09-13
22:33 ---
Patch posted at http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01144.html.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45645
--- Comment #12 from howarth at nitro dot med dot uc dot edu 2010-09-12
18:49 ---
(In reply to comment #11)
Still FAILing on i686-pc-cygwin (and presumably any other nonpic ix86
targets):
This was fixed at...
r163685 | uros | 2010-08-31 13:32:23 -0400 (Tue, 31 Aug 2010) | 3
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet: x86_64-apple-darwin10
--- Comment #1 from howarth at nitro dot med dot uc dot edu 2010-09-11
01:29 ---
Created an attachment (id=21770)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21770action=view)
preprocessed source for g++.dg/torture/pr44972.C -O0
Generated with...
/sw/src/fink.build/gcc46
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet: x86_64-apple-darwin10
GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10
http://gcc.gnu.org/bugzilla/show_bug.cgi?id
--- Comment #1 from howarth at nitro dot med dot uc dot edu 2010-09-11
01:53 ---
Created an attachment (id=21771)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21771action=view)
partition2.gcda generated from partition2.x51 at -m64 on x86_64-apple-darwin10
--
http
--- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-09-11
01:54 ---
Created an attachment (id=21772)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21772action=view)
preprocessed source for g++.dg/tree-prof/partition2.C compiled as
partition2.x52
--
http
--- Comment #3 from howarth at nitro dot med dot uc dot edu 2010-09-11
01:55 ---
Created an attachment (id=21773)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21773action=view)
assembly file for g++.dg/tree-prof/partition2.C compiled as partition2.x52
--
http://gcc.gnu.org
--- Comment #4 from howarth at nitro dot med dot uc dot edu 2010-09-11
01:55 ---
Created an attachment (id=21774)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21774action=view)
object file for g++.dg/tree-prof/partition2.C compiled as partition2.x52
--
http://gcc.gnu.org
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-11
01:57 ---
Attached files were generated as follows...
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/testsuite/g++/../../g++
-B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/testsuite/g++/../../
/sw
--- Comment #6 from howarth at nitro dot med dot uc dot edu 2010-09-11
03:15 ---
This failure exists at r163743 with the addition of the
g++.dg/tree-prof/partition2.C testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45646
--- Comment #3 from howarth at nitro dot med dot uc dot edu 2010-09-09
17:19 ---
Created an attachment (id=21755)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21755action=view)
patch to prune bogus linker warnings from Xcode 3.2.x.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi
--- Comment #11 from howarth at nitro dot med dot uc dot edu 2010-09-08
01:05 ---
Fixed on trunk at r163971.
--
howarth at nitro dot med dot uc dot edu changed:
What|Removed |Added
--- Comment #8 from howarth at nitro dot med dot uc dot edu 2010-09-08
01:06 ---
Fixed on trunk at r163971.
--
howarth at nitro dot med dot uc dot edu changed:
What|Removed |Added
--- Comment #44 from howarth at nitro dot med dot uc dot edu 2010-09-06
13:17 ---
Created an attachment (id=21709)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21709action=view)
retain redefinition of MAIN_STACK_BOUNDARY as required
--
howarth at nitro dot med dot uc dot edu
--- Comment #45 from howarth at nitro dot med dot uc dot edu 2010-09-06
13:57 ---
(In reply to comment #44)
Created an attachment (id=21709)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21709action=view) [edit]
retain redefinition of MAIN_STACK_BOUNDARY as required
Testsuite
--- Comment #16 from howarth at nitro dot med dot uc dot edu 2010-09-06
18:40 ---
Still present for x86_64-unknown-gnu-linux with -m32 at r163927 when tested on
x86_64 Fedora 10
using the new gcc/gcc/testsuite/gcc.dg/torture/stackalign/alloca-5.c test case
only from gcc-pr45234-2
--- Comment #3 from howarth at nitro dot med dot uc dot edu 2010-09-07
01:23 ---
Caused by...
Author: rth
Date: Sat Aug 21 19:05:40 2010
New Revision: 163446
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=163446
Log:
Vectorize fast path of _cpp_clean_line
dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45573
--- Comment #47 from howarth at nitro dot med dot uc dot edu 2010-09-07
03:27 ---
Testsuite results for gcc-pr45234-2.patch and PR36502v9.patch on
i386-apple-darwin10 are at...
http://gcc.gnu.org/ml/gcc-testresults/2010-09/msg00603.html
PR36502, PR42313 and PR44651 fixed as well
--- Comment #21 from howarth at nitro dot med dot uc dot edu 2010-09-04
13:08 ---
Index: gcc/configure.ac
===
--- gcc/configure.ac(revision 163853)
+++ gcc/configure.ac(working copy)
@@ -608,10 +608,6 @@
# Enable
--- Comment #22 from howarth at nitro dot med dot uc dot edu 2010-09-04
13:39 ---
I should note that one probe I am using to monitor how this builds is what
grep decimal_float config.log reports in the gcc, libdecnumber and libgcc
build directories. Pre-r163815/r163816, on darwin
--- Comment #23 from howarth at nitro dot med dot uc dot edu 2010-09-04
14:26 ---
The patch in comment 21 seems to work on x86_64-unknown-linux-gnu for a stock
build. Iin the libgcc build directory before and after the patch, I get...
decimal_float='yes'
enable_decimal_float='bid
--- Comment #24 from howarth at nitro dot med dot uc dot edu 2010-09-04
14:38 ---
Created an attachment (id=21695)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21695action=view)
Move definition of ENABLE_DECIMAL_FLOAT to 1 into config/dfp.m4.
--
http://gcc.gnu.org/bugzilla
--- Comment #27 from howarth at nitro dot med dot uc dot edu 2010-09-04
15:44 ---
Both patches fail on a x86_64-apple-darwin10 bootstrap with..
make[3]: *** No rule to make target
`../../gcc-4.6-20100904/gcc/../libdecnumber/no/decimal32.h', needed by `dfp.o'.
Stop
--
http
--- Comment #29 from howarth at nitro dot med dot uc dot edu 2010-09-04
16:32 ---
(In reply to comment #28)
Created an attachment (id=21698)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21698action=view) [edit]
A new patch
Try this one.
This bootstraps. Regtesting next
--- Comment #31 from howarth at nitro dot med dot uc dot edu 2010-09-04
16:58 ---
(In reply to comment #30)
I'm not sure whether the patches remove the need for the other patch in
comment
#21 though. Jack, can you post what you are exactly testing (without the
regenerated files
--- Comment #32 from howarth at nitro dot med dot uc dot edu 2010-09-04
18:12 ---
I can confirm that gcc-pr45524-3.patch bootstraps and eliminates the
regressions caused by r163815/r163816 on x86_64-apple-darwin10.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45524
--- Comment #8 from howarth at nitro dot med dot uc dot edu 2010-09-04
19:13 ---
(In reply to comment #7)
I fixed the test case to not expect the unimplemented optimization in r157197,
however, it would be nice to ensure the async signal handlers can handle
unaligned stacks
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-04
20:28 ---
My proposed patch to fix PR36502...
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg00237.html
also fixes this regression as can be since from the diff of leaf.s generated
with gcc trunk before and after
--- Comment #42 from howarth at nitro dot med dot uc dot edu 2010-09-04
20:39 ---
Posted final version of proposed patch to...
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg00237.html
This patch also fixes PR42313 and PR44651 as yet another added bonus.
--
http://gcc.gnu.org
--- Comment #9 from howarth at nitro dot med dot uc dot edu 2010-09-04
21:20 ---
Updated patch to reflect the wider coverage of PRs fixed...
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg00365.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42313
--- Comment #6 from howarth at nitro dot med dot uc dot edu 2010-09-04
21:20 ---
Updated patch to reflect the wider coverage of PRs fixed...
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg00365.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44651
--- Comment #43 from howarth at nitro dot med dot uc dot edu 2010-09-04
21:21 ---
Updated patch to reflect the wider coverage of PRs fixed...
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg00365.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36502
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet: x86_64
--- Comment #1 from howarth at nitro dot med dot uc dot edu 2010-09-05
04:46 ---
Created an attachment (id=21701)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21701action=view)
failed bootstrap log on x86_64-apple-darwin10 with --enable-build-with-cxx
--
http://gcc.gnu.org
--- Comment #34 from howarth at nitro dot med dot uc dot edu 2010-09-05
04:57 ---
Regression result for gcc-pr45524-3.patch on x86_64-apple-darwin10.
http://gcc.gnu.org/ml/gcc-testresults/2010-09/msg00410.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45524
--- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-09-05
05:40 ---
The same bootstrap failure occurs on x86_64 Fedora 10 with...
../gcc/configure --with-gmp=/usr --with-mpfr=/usr --with-mpc=/usr
--prefix=/home/howarth/dist --enable-languages=c,c++ --enable-build-with-cxx
: howarth at nitro dot med dot uc dot edu
GCC build triplet: x86_64-apple-darwin10
GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45524
--- Comment #1 from howarth at nitro dot med dot uc dot edu 2010-09-03
18:53 ---
Created an attachment (id=21688)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21688action=view)
gcc/config.log from x86_64-apple-darwin10
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45524
--- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-09-03
18:54 ---
Created an attachment (id=21689)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21689action=view)
gcc/autohost.h from x86_64-apple-darwin10
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45524
--- Comment #3 from howarth at nitro dot med dot uc dot edu 2010-09-03
18:56 ---
Added gcc/config.log and gcc/autohost.h files from a build on
x86_64-apple-darwin10 configured with...
../gcc/configure --prefix=/Users/howarth/dist --with-gmp=/sw
--with-libiconv-prefix=/sw --with-ppl
--- Comment #4 from howarth at nitro dot med dot uc dot edu 2010-09-03
20:06 ---
Looking at a build previous to r163815/r163816, I find that config.log has...
enable_decimal_float='no'
in the libgcc build subdirectories, but config.log shows...
enable_decimal_float='dpd'
everywhere
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-03
21:58 ---
Okay the problem is that pre-r163815/r163816, we had in gcc/configure.ac...
# x86's use BID format instead of DPD
case x$enable_decimal_float in
xyes)
case $target in
i?86*-*-linux* | x86_64
--- Comment #6 from howarth at nitro dot med dot uc dot edu 2010-09-03
22:12 ---
Of course this bug impacts all non-linux targets so it should be a P1.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45524
--- Comment #33 from howarth at nitro dot med dot uc dot edu 2010-09-03
23:36 ---
Fixed at r163811.
--
howarth at nitro dot med dot uc dot edu changed:
What|Removed |Added
--- Comment #25 from howarth at nitro dot med dot uc dot edu 2010-09-03
23:37 ---
Fixed at r163823.
--
howarth at nitro dot med dot uc dot edu changed:
What|Removed |Added
--- Comment #8 from howarth at nitro dot med dot uc dot edu 2010-09-04
01:26 ---
Reverting and regenerating libgcc/configure.ac is insufficient to eliminate the
failures. I will try reverting both libgcc/configure.ac and
libdecnumber/configure.ac next. I suspect the changes in r163815
--- Comment #9 from howarth at nitro dot med dot uc dot edu 2010-09-04
02:09 ---
To make clearer the subtleties being lost in a single dfp.m4 file, here are the
diffs of the lines replaced out of configure.ac from each location (gcc, libgcc
and libdecnumber).
--- gcc 2010-09-03 22:04
--- Comment #11 from howarth at nitro dot med dot uc dot edu 2010-09-04
02:27 ---
I am not worried about $host vs $target but rather the nuances in the xno case
for x$enable_decimal_float in the original code. For gcc/configure.ac, this
sets...
enable_decimal_float=dpd
but that case
--- Comment #12 from howarth at nitro dot med dot uc dot edu 2010-09-04
02:28 ---
(In reply to comment #11)
but that case is not handled in gcc/configure.ac. Likewise comparing
but that case is not handled in libgcc/configure.ac. Likewise comparing
--
http://gcc.gnu.org
--- Comment #13 from howarth at nitro dot med dot uc dot edu 2010-09-04
03:39 ---
Reverting both libgcc/configure.ac and libdecnumber/configure.ac and
regenerating these files is insufficient as well to eliminate the regressions
on darwin. Looking at the remaining changes in gcc
--- Comment #14 from howarth at nitro dot med dot uc dot edu 2010-09-04
05:21 ---
The original patch introduce this minor variations in the code copied for
dfp.m4 in the gcc/configure.ac, libgcc/configure.ac and libdecnumber.ac is
found here...
http://gcc.gnu.org/ml/gcc-patches/2007
--- Comment #19 from howarth at nitro dot med dot uc dot edu 2010-09-02
15:21 ---
(In reply to comment #17)
No idea if it is correct:
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index b550d86..decfd65 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386
--- Comment #22 from howarth at nitro dot med dot uc dot edu 2010-09-02
17:39 ---
(In reply to comment #21)
Created an attachment (id=21670)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21670action=view) [edit]
gcc46-pr45484.patch
...
Jakub,
Thanks. This patch when
--- Comment #41 from howarth at nitro dot med dot uc dot edu 2010-09-03
01:58 ---
Created an attachment (id=21681)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21681action=view)
don't redefine MAIN_STACK_BOUNDARY so -fstack-usage can work
--
http://gcc.gnu.org/bugzilla
--- Comment #30 from howarth at nitro dot med dot uc dot edu 2010-09-01
14:38 ---
Original -m32 lto testsuite failures due to non-relocatable subtraction
expression errors were made latent by the commit...
Author: ak
Date: Tue Aug 31 16:58:46 2010
New Revision: 163680
URL: http
--- Comment #32 from howarth at nitro dot med dot uc dot edu 2010-09-01
15:18 ---
(In reply to comment #31)
I compared revision 163733 against revision 163733 + gcc-pr45234-2.patch
with a cross compiler to x86_64-apple-darwin10.4.0. I saw no
differences in .su files for gcc.dg
--- Comment #33 from howarth at nitro dot med dot uc dot edu 2010-09-01
15:30 ---
Created an attachment (id=21647)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21647action=view)
Don't redefine STACK_BOUNDARY and replace STACK_BOUNDARY with 128.
--
howarth at nitro dot med dot
--- Comment #35 from howarth at nitro dot med dot uc dot edu 2010-09-01
15:37 ---
(In reply to comment #34)
Please do a proper regression test and report REAL regressions.
First we need to do a regression hunt in gcc trunk for the new
stack test case failures. It is impossible
-
chk.c compilation, -Os at -m32
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc
--- Comment #1 from howarth at nitro dot med dot uc dot edu 2010-09-01
16:21 ---
Original patch submitted with
http://gcc.gnu.org/ml/gcc-patches/2010-08/msg00440.html.
Test cases added with http://gcc.gnu.org/ml/gcc-patches/2010-08/msg00503.html.
--
howarth at nitro dot med dot uc
--- Comment #36 from howarth at nitro dot med dot uc dot edu 2010-09-01
17:45 ---
FAIL: gcc.c-torture/execute/builtins/sprintf-chk.c compilation, -Os (internal
compiler error)
UNRESOLVED: gcc.c-torture/execute/builtins/sprintf-chk.c execution, -Os
FAIL: gcc.dg/stack-usage-1.c scan
--- Comment #37 from howarth at nitro dot med dot uc dot edu 2010-09-01
18:01 ---
The nest.c failure doesn't occur with r163659 and gcc-pr45234-2.patch. So
PR36502v4.patch solves PR36502 but introduces a single regression in the gcc
testsuite.
--
http://gcc.gnu.org/bugzilla
--- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-09-01
19:26 ---
I am finding in current gcc trunk that these tests randomly pass and fail if
you repeat them enough times. This correlates with Richard Henderson
observation that the failures at r163660 looks like random
--- Comment #40 from howarth at nitro dot med dot uc dot edu 2010-09-01
21:28 ---
(In reply to comment #39)
Created an attachment (id=21650)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21650action=view) [edit]
Another patch
Darwin needs 128bit stack alignment for -pg
--- Comment #4 from howarth at nitro dot med dot uc dot edu 2010-09-01
23:11 ---
(In reply to comment #3)
I think I can prove that my patch doesn't affect code generation, except
possibly on the SPARC, so I'm a little skeptical about your diagnosis. Are
you
sure it's
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-01
23:17 ---
The code generate IS random. I repeatedly execute...
/Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth/darwin_objdir/gcc/
/Users/howarth/gcc/gcc/testsuite/gcc.c-torture/execute/builtins/sprintf-chk.c
--- Comment #6 from howarth at nitro dot med dot uc dot edu 2010-09-01
23:21 ---
I should also note that sometimes the test in comment 5 does produce identical
code between two instances of executing the compile command whereas other times
I get a crash...
/Users/howarth/darwin_objdir
--- Comment #7 from howarth at nitro dot med dot uc dot edu 2010-09-02
04:59 ---
Created an attachment (id=21651)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21651action=view)
preprocessed source of reduced failing test case
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id
--- Comment #8 from howarth at nitro dot med dot uc dot edu 2010-09-02
05:05 ---
At r163660, the reduced test case (of just the test3 subroutine of
sprint-chk.c) triggers the compiler ICE at high frequency on
x86-apple-darwin10...
/Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth
--- Comment #9 from howarth at nitro dot med dot uc dot edu 2010-09-02
05:10 ---
Note that in current gcc trunk (r163747) with...
http://gcc.gnu.org/ml/gcc-patches/2010-08/msg01916.html
and
http://gcc.gnu.org/bugzilla/attachment.cgi?id=21650
the frequency of the test case ICEing
--- Comment #11 from howarth at nitro dot med dot uc dot edu 2010-08-31
07:04 ---
Using the proposed PR36502v2.patch, which eliminates any attempts to change the
default stack boundary handling in gcc trunk, I find the following regressions
at -m32 on x86_64-apple-darwin10...
FAIL
--- Comment #12 from howarth at nitro dot med dot uc dot edu 2010-08-31
12:57 ---
Testresults for PR36502v2.patch at
http://gcc.gnu.org/ml/gcc-testresults/2010-08/msg03098.html. It appears that
the only additional failures triggered by this patch are listed in comment 11.
--
http
--- Comment #15 from howarth at nitro dot med dot uc dot edu 2010-08-31
15:39 ---
Created an attachment (id=21607)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21607action=view)
rely on PREFERRED_STACK_BOUNDARY_DEFAULT and MAIN_STACK_BOUNDARY
--
http://gcc.gnu.org/bugzilla
--- Comment #16 from howarth at nitro dot med dot uc dot edu 2010-08-31
15:48 ---
(In reply to comment #14)
Please try this patch:
http://gcc.gnu.org/ml/gcc-patches/2010-08/msg01916.html
With the patch above and PR36502v3.patch, I still get...
FAIL: gcc.c-torture/execute
--- Comment #17 from howarth at nitro dot med dot uc dot edu 2010-08-31
16:30 ---
With http://gcc.gnu.org/ml/gcc-patches/2010-08/msg01916.html and the patch in
comment 15, I am also still failing at -m32 on x86_64-apple-darwin10...
FAIL: gcc.dg/nest.c execution test
FAIL: gcc.dg
--- Comment #18 from howarth at nitro dot med dot uc dot edu 2010-08-31
16:36 ---
Created an attachment (id=21608)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21608action=view)
assembly from failing gcc.dg/nest.c execution test at -m32 on
x86_64-apple-darwin10
Generated
--- Comment #19 from howarth at nitro dot med dot uc dot edu 2010-08-31
16:41 ---
(In reply to comment #18)
In gdb, the failing nest.exe exection shows...
Starting program: /Users/howarth/stack_align_bug2/nest.exe
Reading symbols for shared libraries ++. done
Program received
--- Comment #20 from howarth at nitro dot med dot uc dot edu 2010-08-31
16:42 ---
Created an attachment (id=21609)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21609action=view)
assembly from failing gcc.dg/torture/stackalign/alloca-4.c -O1 execution test
at -m32 on x86_64
--- Comment #21 from howarth at nitro dot med dot uc dot edu 2010-08-31
16:46 ---
(In reply to comment #20)
Created alloca-4.s with...
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/
/sw/src/fink.build/gcc46-4.6.0
--- Comment #22 from howarth at nitro dot med dot uc dot edu 2010-08-31
19:50 ---
Created an attachment (id=21615)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21615action=view)
assembly from stock build of gcc.dg/nest.c execution test at -m32 on
x86_64-apple-darwin10
--- Comment #23 from howarth at nitro dot med dot uc dot edu 2010-08-31
19:55 ---
Created an attachment (id=21616)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21616action=view)
assembly from stock build of gcc.dg/torture/stackalign/alloca-4.c -O1
execution test at -m32
--- Comment #24 from howarth at nitro dot med dot uc dot edu 2010-08-31
19:57 ---
Created an attachment (id=21617)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21617action=view)
diff between nest.s.stock and nest.s show alignment changes in failing test
case
--
http
--- Comment #25 from howarth at nitro dot med dot uc dot edu 2010-08-31
19:59 ---
Created an attachment (id=21618)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21618action=view)
diff between alloca-4.s.stock and alloca-4.s show alignment changes in failing
test case
--
http
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