[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

Segher Boessenkool  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #31 from Segher Boessenkool  ---
Okay, closing then (the patch has been backported to 6, too).  Thanks!

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #30 from John Paul Adrian Glaubitz  ---
(In reply to Segher Boessenkool from comment #29)
> Is there anything left to do here?  Or can this PR be closed.

As both LibreOffice and GHC now build without issues on Debian powerpcspe with
gcc-7 as the default compiler, I think it's safe to assume that the bug has
been fixed.

I think it did still occur with gcc-6 though although I'm not sure anymore.
Either way, gcc-7 works correctly.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #29 from Segher Boessenkool  ---
Is there anything left to do here?  Or can this PR be closed.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

Richard Biener  changed:

   What|Removed |Added

   Target Milestone|7.2 |7.3

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

Richard Biener  changed:

   What|Removed |Added

   Target Milestone|7.2 |7.3

--- Comment #29 from Richard Biener  ---
GCC 7.2 is being released, adjusting target milestone.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #28 from Segher Boessenkool  ---
Author: segher
Date: Tue Jun 27 17:11:01 2017
New Revision: 249700

URL: https://gcc.gnu.org/viewcvs?rev=249700=gcc=rev
Log:
Backports from trunk:

2016-08-15  Segher Boessenkool  
PR rtl-optimization/73650
* lra-constraints.c (simple_move_p): If the insn is multiple_sets
it is not a simple move.

2017-01-20  Segher Boessenkool  
PR target/61729
PR target/77850
* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Adjust address to
read from, for big endian.

2017-04-04  Segher Boessenkool  
PR rtl-optimization/60818
* simplify-rtx.c (simplify_binary_operation_1): Do not replace
a compare of comparisons with the thing compared if this results
in a different machine mode.

2017-04-12  Segher Boessenkool  
PR target/80382
* config/rs6000/sync.md (atomic_load, atomic_store
PR rtl-optimization/80429
* ira.c (split_live_ranges_for_shrink_wrap): Don't split regs that
are only used in debug insns.

2017-05-17  Segher Boessenkool  
PR middle-end/80692
* real.c (do_compare): Give decimal_do_compare preference over
comparing just the signs.

2017-05-31  Segher Boessenkool  
PR target/80618
* config/rs6000/vector.md (*vector_uneq): Write the nor in the
splitter result in the canonical way.

2017-06-09  Segher Boessenkool  
PR target/80966
* config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Assert that
gen_add3_insn did not fail.
* config/rs6000/rs6000.md (add3): If asked to add a constant to
r0, construct that number in a temporary reg and add that reg to r0.
If asked to put the result in r0 as well, fail.

2017-06-23  Segher Boessenkool  
PR middle-end/80902
* builtins.c (expand_builtin_atomic_fetch_op): If emitting code after
a call, force the call to not be a tail call.

gcc/testsuite/
Backports from trunk:

2017-04-04  Segher Boessenkool  
PR rtl-optimization/60818
* gcc.c-torture/compile/pr60818.c: New testcase.

2017-05-17  Segher Boessenkool  
PR middle-end/80692
* gcc.c-torture/execute/pr80692.c: New testcase.

2017-06-09  Segher Boessenkool  
PR target/80966
* gcc.target/powerpc/stack-limit.c: New testcase.

Added:
branches/gcc-6-branch/gcc/testsuite/gcc.c-torture/compile/pr60818.c
branches/gcc-6-branch/gcc/testsuite/gcc.c-torture/execute/pr80692.c
branches/gcc-6-branch/gcc/testsuite/gcc.target/powerpc/stack-limit.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/builtins.c
branches/gcc-6-branch/gcc/config/rs6000/rs6000.c
branches/gcc-6-branch/gcc/config/rs6000/rs6000.md
branches/gcc-6-branch/gcc/config/rs6000/sync.md
branches/gcc-6-branch/gcc/config/rs6000/vector.md
branches/gcc-6-branch/gcc/ira.c
branches/gcc-6-branch/gcc/lra-constraints.c
branches/gcc-6-branch/gcc/real.c
branches/gcc-6-branch/gcc/simplify-rtx.c
branches/gcc-6-branch/gcc/testsuite/ChangeLog

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #27 from John Paul Adrian Glaubitz  ---
(In reply to Jakub Jelinek from comment #26)
> GCC 7.1 has been released.

At least for me, the bug has been fixed with Segher's patch, so I'm not sure if
pushing the milestone to 7.2 makes sense.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

Jakub Jelinek  changed:

   What|Removed |Added

   Target Milestone|7.0 |7.2

--- Comment #26 from Jakub Jelinek  ---
GCC 7.1 has been released.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #25 from John Paul Adrian Glaubitz  ---
Hi Segher!

Your patch fixes the issue for me. I had issues building ghc on powerpcspe.
With gcc-6 it failed in the expected way, with gcc-7, it went past the
problematic source code file.

Would it be possible that your backport your fix to the gcc-6 branch so we can
use it in the current Debian release?

Thanks,
Adrian

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #24 from Segher Boessenkool  ---
Author: segher
Date: Tue Apr  4 00:10:02 2017
New Revision: 24

URL: https://gcc.gnu.org/viewcvs?rev=24=gcc=rev
Log:
simplify-rtx: Fix compare of comparisons (PR60818)

The function simplify_binary_operation_1 has code that does
/* Convert (compare (gt (flags) 0) (lt (flags) 0)) to (flags).  */
but this transformation is only valid if "flags" has the same machine
mode as the outer compare.  This fixes it.


PR rtl-optimization/60818
* simplify-rtx.c (simplify_binary_operation_1): Do not replace
a compare of comparisons with the thing compared if this results
in a different machine mode.

gcc/testsuite/
PR rtl-optimization/60818
* gcc.c-torture/compile/pr60818.c: New testcase.

Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr60818.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/simplify-rtx.c
trunk/gcc/testsuite/ChangeLog

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #23 from Segher Boessenkool  ---
I have a patch for the problem in comments 17 and 19 (which is different from
the problems in earlier comments, only some of which i can reproduce).

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #22 from Segher Boessenkool  ---
The combination that makes it die is:

Trying 18, 17 -> 19:
Successfully matched this instruction:
(set (reg:CC 176)
(reg:CC 164))

Where insn 18 is

(set (reg:SI 174)
(gt:SI (reg:CC 164)
(const_int 0 [0])))

and insn 17 is

(set (reg:SI 173)
(lt:SI (reg:CC 164)
(const_int 0 [0])))

and insn 19 is

(insn 19 18 22 2 (set (reg:CCUNS 176)
(compare:CCUNS (reg:SI 173)
(reg:SI 174))) "60818-19.c":4 772 {*cmpsi_unsigned}
 (expr_list:REG_DEAD (reg:SI 174)
(expr_list:REG_DEAD (reg:SI 173)
(nil

the combined insn should not simply copy the CC (it needs to swap
the greater-than and smaller-than results), and it needs to return
a CCUNS anyway.  Where did this come from...

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #21 from Segher Boessenkool  ---
You don't even need -Os for this last testcase, only -misel.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #20 from Arseny Solokha  ---
(In reply to Alan Modra from comment #19)
> Yes, r246294 powerpc64le-linux-gcc -O1 -misel ICEs on the last testcase.  An
> earlier compiler I had laying around, 7.0.0 20160616, does not.

Here's a simplified version, then (-misel -Os):

int
lx (int oi, int mb)
{
  return (oi < mb) < (mb < oi);
}

Note that this snippet as well as one from comment 17 both have comparison
patterns similar to those from snippets in comment 3 and comment 4.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[amodra at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #19 from Alan Modra  ---
Yes, r246294 powerpc64le-linux-gcc -O1 -misel ICEs on the last testcase.  An
earlier compiler I had laying around, 7.0.0 20160616, does not.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #18 from Segher Boessenkool  ---
Okay, this I can reproduce (no -fPIC needed, not even -m32).  Thanks!

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

Arseny Solokha  changed:

   What|Removed |Added

  Known to fail||7.0

--- Comment #17 from Arseny Solokha  ---
(In reply to Arseny Solokha from comment #15)
> (In reply to Segher Boessenkool from comment #14)
> > I cannot get any of the testcases to fail with current trunk (but
> > they do fail with GCC 6).  Combine always merges the compare into
> > the if_then_else pattern, and there are no such patterns in rs6000
> > (this could be done with a cmp+isel define_insn_and_split, and is
> > probably a good idea, but we do not have that currently).
> 
> OK, I'll post another one or two the next week. This is still reproducible
> on the trunk, but the actual code pattern causing the ICE seems to be a
> moving target.

int no;

void
gn (int d3)
{
  while (no != 0)
  {
if ((no > d3) > (no < d3))
  ++no;

while (d3 != 0)
{
}
  }
}

% powerpc-e300c3-linux-gnu-gcc-7.0.0-alpha20170326 -misel -Os -w -c qb3j6i03.c
qb3j6i03.c: In function 'gn':
qb3j6i03.c:15:1: internal compiler error: in validate_condition_mode, at
config/rs6000/rs6000.c:20752
 }
 ^
0x2b53add47a3 validate_condition_mode(rtx_code, machine_mode)
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/config/rs6000/rs6000.c:20751
0x2b53b0171a7 branch_comparison_operator(rtx_def*, machine_mode)
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/config/rs6000/predicates.md:1243
0x2b53b01731b scc_rev_comparison_operator(rtx_def*, machine_mode)
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/config/rs6000/predicates.md:1300
0x2b53b0362d4 recog_10
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/config/rs6000/rs6000.md:344
0x2b53b0362d4 recog_11
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/config/rs6000/altivec.md:224
0x2b53b0362d4 recog_12
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/config/rs6000/rs6000.md:5090
0x2b53b0703e5 recog_137
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/config/rs6000/altivec.md:1760
0x2b53b09ff2b recog_for_combine_1
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/combine.c:11145
0x2b53b0a6aed recog_for_combine
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/combine.c:11401
0x2b53b0b2601 try_combine
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/combine.c:4033
0x2b53b0b8ea0 combine_instructions
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/combine.c:1372
0x2b53b0b8ea0 rest_of_handle_combine
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/combine.c:14650
0x2b53b0b8ea0 execute
   
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170326/work/gcc-7-20170326/gcc/combine.c:14695

The same for powerpc-e500v2-linux-gnuspe. As before, toggling -fPIC may be
necessary as well.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #16 from John Paul Adrian Glaubitz  ---
Also still reproducible in Debian. LibreOffice just failed to build with the
same problem [1]:

S=/<> && I=$S/instdir && W=$S/workdir &&  mkdir -p
$W/CxxObject/tools/source/generic/ $W/Dep/CxxObject/tools/source/generic/ && cd
/<> &&   powerpc-linux-gnuspe-g++ -DBOOST_ERROR_CODE_HEADER_ONLY
-DBOOST_SYSTEM_NO_DEPRECATED -DCPPU_ENV=gcc3 -DLINUX -DNDEBUG -DOPTIMIZE
-DOSL_DEBUG_LEVEL=0 -DPOWERPC -DPPC -DUNIX -DUNX -D_FORTIFY_SOURCE=2
-D_PTHREADS -D_REENTRANT -Wdate-time -Wdate-time -D_FORTIFY_SOURCE=2 
-DTOOLS_DLLIMPLEMENTATION  -DSYSTEM_ZLIB   -DHAVE_GCC_VISIBILITY_FEATURE
-fvisibility=hidden   -Wall -Wno-missing-braces -Wnon-virtual-dtor
-Wendif-labels -Wextra -Wundef -Wunused-macros -fmessage-length=0 -fno-common
-pipe  -Wduplicated-cond -Wlogical-op -Wnull-dereference -Wshift-overflow=2
-Wunused-const-variable=1 -fvisibility-inlines-hidden -fPIC -Wshadow
-Woverloaded-virtual -std=gnu++14  -g1  -DEXCEPTIONS_ON -fexceptions
-fno-enforce-eh-specs -g1 -O2 -fdebug-prefix-map=/<>=.
-fstack-protector-strong -Wformat -Werror=format-security  -DLIBO_INTERNAL_ONLY
 -c $S/tools/source/generic/config.cxx -o
$W/CxxObject/tools/source/generic/config.o -MMD -MT
$W/CxxObject/tools/source/generic/config.o -MP -MF
$W/Dep/CxxObject/tools/source/generic/config.d_ -I$S/tools/source/generic/
-I$S/tools/inc  -I$S/include  -I/usr/lib/jvm/default-java/include
-I/usr/lib/jvm/default-java/include/linux -I$S/config_host  
-I$W/UnoApiHeadersTarget/udkapi/normal -I$W/UnoApiHeadersTarget/offapi/normal
-I/usr/include   && mv $W/Dep/CxxObject/tools/source/generic/config.d_
$W/Dep/CxxObject/tools/source/generic/config.d 
[build CXX] tools/source/generic/fract.cxx
/<>/tools/source/generic/color.cxx: In member function 'bool
Color::IsBright() const':
/<>/tools/source/generic/color.cxx:112:1: internal compiler error:
in validate_condition_mode, at config/rs6000/rs6000.c:18014
 }
 ^

> [1] 
> https://buildd.debian.org/status/fetch.php?pkg=libreoffice=powerpcspe=1%3A5.2.6-2=1490096724=0

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #15 from Arseny Solokha  ---
(In reply to Segher Boessenkool from comment #14)
> I cannot get any of the testcases to fail with current trunk (but
> they do fail with GCC 6).  Combine always merges the compare into
> the if_then_else pattern, and there are no such patterns in rs6000
> (this could be done with a cmp+isel define_insn_and_split, and is
> probably a good idea, but we do not have that currently).

OK, I'll post another one or two the next week. This is still reproducible on
the trunk, but the actual code pattern causing the ICE seems to be a moving
target.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #14 from Segher Boessenkool  ---
I cannot get any of the testcases to fail with current trunk (but
they do fail with GCC 6).  Combine always merges the compare into
the if_then_else pattern, and there are no such patterns in rs6000
(this could be done with a cmp+isel define_insn_and_split, and is
probably a good idea, but we do not have that currently).

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #13 from John Paul Adrian Glaubitz  ---
Created attachment 39807
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39807=edit
Pre-processed source for tools/qtextboundaryfinder.cpp

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

John Paul Adrian Glaubitz  changed:

   What|Removed |Added

 CC||glaubitz at physik dot 
fu-berlin.d
   ||e

--- Comment #12 from John Paul Adrian Glaubitz  ---
Hi!

We just recently started seeing this issue in Debian, however, only for the
powerpc-linux-gnuspe targets, i.e. e500v2 (Debian architecture: powerpcspe)
[1]:

g++ -c -g -O2 -fdebug-prefix-map=/<>/qt4-x11-4.8.7+dfsg=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -std=gnu++98 -I/usr/include/freetype2 -pthread
-I/usr/include/glib-2.0 -I/usr/lib/powerpc-linux-gnuspe/glib-2.0/include -O2
-fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC
-DQT_SHARED -DQT_BUILD_CORE_LIB -DQT_NO_USING_NAMESPACE -DQT_NO_CAST_TO_ASCII
-DQT_ASCII_CAST_WARNINGS -DQT3_SUPPORT -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER
-DELF_INTERPRETER=\"/lib/ld.so.1\" -DQLIBRARYINFO_EPOCROOT -DQT_USE_ICU
-DHB_EXPORT=Q_CORE_EXPORT -DQT_NO_DEBUG -D_LARGEFILE64_SOURCE
-D_LARGEFILE_SOURCE -I../../mkspecs/linux-g++ -I. -I../../include
-I../../include/QtCore -I.rcc/release-shared -Iglobal -I../../tools/shared
-I../3rdparty/harfbuzz/src -I../3rdparty/md5 -I../3rdparty/md4
-I.moc/release-shared -o .obj/release-shared/qtextboundaryfinder.o
tools/qtextboundaryfinder.cpp
tools/qtextboundaryfinder.cpp: In member function 'bool
QTextBoundaryFinder::isAtBoundary() const':
tools/qtextboundaryfinder.cpp:444:1: internal compiler error: in
validate_condition_mode, at config/rs6000/rs6000.c:17958
 }
 ^
0x109c5aab validate_condition_mode(rtx_code, machine_mode)
../../src/gcc/config/rs6000/rs6000.c:17957
0x10b438df branch_comparison_operator(rtx_def*, machine_mode)
../../src/gcc/config/rs6000/predicates.md:1125
0x10b43b13 branch_positive_comparison_operator(rtx_def*, machine_mode)
../../src/gcc/config/rs6000/predicates.md:1204
0x10b5bad7 recog_72
../../src/gcc/config/rs6000/altivec.md:643
0x10bb7f3b recog_for_combine_1
../../src/gcc/combine.c:10945
0x10bbd4ff recog_for_combine
../../src/gcc/combine.c:11142
0x10bcb0c7 try_combine
../../src/gcc/combine.c:3503
0x10bcec7f combine_instructions
../../src/gcc/combine.c:1475
0x10bcec7f rest_of_handle_combine
../../src/gcc/combine.c:14356
0x10bcec7f execute
../../src/gcc/combine.c:14399
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See  for instructions.
g++ -c -g -O2 -fdebug-prefix-map=/<>/qt4-x11-4.8.7+dfsg=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -std=gnu++98 -I/usr/include/freetype2 -pthread
-I/usr/include/glib-2.0 -I/usr/lib/powerpc-linux-gnuspe/glib-2.0/include -O2
-fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC
-DQT_SHARED -DQT_BUILD_CORE_LIB -DQT_NO_USING_NAMESPACE -DQT_NO_CAST_TO_ASCII
-DQT_ASCII_CAST_WARNINGS -DQT3_SUPPORT -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER
-DELF_INTERPRETER=\"/lib/ld.so.1\" -DQLIBRARYINFO_EPOCROOT -DQT_USE_ICU
-DHB_EXPORT=Q_CORE_EXPORT -DQT_NO_DEBUG -D_LARGEFILE64_SOURCE
-D_LARGEFILE_SOURCE -I../../mkspecs/linux-g++ -I. -I../../include
-I../../include/QtCore -I.rcc/release-shared -Iglobal -I../../tools/shared
-I../3rdparty/harfbuzz/src -I../3rdparty/md5 -I../3rdparty/md4
-I.moc/release-shared -o .obj/release-shared/qtimeline.o tools/qtimeline.cpp
g++ -c -g -O2 -fdebug-prefix-map=/<>/qt4-x11-4.8.7+dfsg=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -std=gnu++98 -I/usr/include/freetype2 -pthread
-I/usr/include/glib-2.0 -I/usr/lib/powerpc-linux-gnuspe/glib-2.0/include -O2
-fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC
-DQT_SHARED -DQT_BUILD_CORE_LIB -DQT_NO_USING_NAMESPACE -DQT_NO_CAST_TO_ASCII
-DQT_ASCII_CAST_WARNINGS -DQT3_SUPPORT -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER
-DELF_INTERPRETER=\"/lib/ld.so.1\" -DQLIBRARYINFO_EPOCROOT -DQT_USE_ICU
-DHB_EXPORT=Q_CORE_EXPORT -DQT_NO_DEBUG -D_LARGEFILE64_SOURCE
-D_LARGEFILE_SOURCE -I../../mkspecs/linux-g++ -I. -I../../include
-I../../include/QtCore -I.rcc/release-shared -Iglobal -I../../tools/shared
-I../3rdparty/harfbuzz/src -I../3rdparty/md5 -I../3rdparty/md4
-I.moc/release-shared -o .obj/release-shared/qvector.o tools/qvector.cpp
Preprocessed source stored into /tmp/ccg5tpbm.out file, please attach this to
your bugreport.

I'm attaching the pre-processed source in case that might be useful. Odd that
despite this bug being so old, it just surfaced on Debian powerpcspe recently.

Thanks,
Adrian

> [1] 
> https://buildd.debian.org/status/fetch.php?pkg=qt4-x11=powerpcspe=4%3A4.8.7%2Bdfsg-9=1476330034

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #11 from Segher Boessenkool  ---
It's on my radar.  All bugs can be fixed during stage3.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #10 from Arseny Solokha  ---
Segher, can you update on the status of this PR, as the stage 1 apparently
approaches to its end?

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

Segher Boessenkool  changed:

   What|Removed |Added

   Target Milestone|--- |7.0

--- Comment #9 from Segher Boessenkool  ---
Thanks for reminding me Arseny.

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #8 from Arseny Solokha  ---
Segher, could you, please, finally decide on the future of the patch?

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #7 from Segher Boessenkool  ---
Not a regression, postponed to GCC 7, last patch is at
https://gcc.gnu.org/ml/gcc-patches/2016-02/msg01303.html .

[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

Segher Boessenkool  changed:

   What|Removed |Added

 CC||segher at gcc dot gnu.org
  Component|target  |rtl-optimization

--- Comment #6 from Segher Boessenkool  ---
It's a combine bug.  I am testing a patch.