[Bug objc/43535] New: ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[Bug objc/43535] New: ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[howarth at nitro dot med dot uc dot edu]

At r157738, the testsuite testcase objc.dg/objc-gc-4.m -fgnu-runtime now fails
with an internal compiler error on x86_64-apple-darwin10...

Executing on host:
/sw/src/fink.build/gcc45-4.4.999-20100325/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc45-4.4.999-20100325/darwin_objdir/gcc/
/sw/src/fink.build/gcc45-4.4.999-20100325/gcc-4.5-20100325/gcc/testsuite/objc.dg/objc-gc-4.m
 -fgnu-runtime -fobjc-gc
-I/sw/src/fink.build/gcc45-4.4.999-20100325/gcc-4.5-20100325/gcc/testsuite/../../libobjc

-B/sw/src/fink.build/gcc45-4.4.999-20100325/darwin_objdir/x86_64-apple-darwin10.3.0/./libobjc/.libs
 
-L/sw/src/fink.build/gcc45-4.4.999-20100325/darwin_objdir/x86_64-apple-darwin10.3.0/./libobjc/.libs
 -S  -o objc-gc-4.s    (timeout = 300)
/sw/src/fink.build/gcc45-4.4.999-20100325/gcc-4.5-20100325/gcc/testsuite/objc.dg/objc-gc-4.m:
In function '-[MyRTFFileDocument readFromFile:ofType:]':
/sw/src/fink.build/gcc45-4.4.999-20100325/gcc-4.5-20100325/gcc/testsuite/objc.dg/objc-gc-4.m:58:13:
internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
compiler exited with status 1
output is:
/sw/src/fink.build/gcc45-4.4.999-20100325/gcc-4.5-20100325/gcc/testsuite/objc.dg/objc-gc-4.m:
In function '-[MyRTFFileDocument readFromFile:ofType:]':
/sw/src/fink.build/gcc45-4.4.999-20100325/gcc-4.5-20100325/gcc/testsuite/objc.dg/objc-gc-4.m:58:13:
internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

FAIL: objc.dg/objc-gc-4.m -fgnu-runtime (internal compiler error)
FAIL: objc.dg/objc-gc-4.m -fgnu-runtime (test for excess errors)
Excess errors:
/sw/src/fink.build/gcc45-4.4.999-20100325/gcc-4.5-20100325/gcc/testsuite/objc.dg/objc-gc-4.m:58:13:
internal compiler error: Segmentation fault


-- 
           Summary: ICE on objc.dg/objc-gc-4.m -fgnu-runtime
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: objc
        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=43535

[Bug objc/43535] ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[developer at sandoe-acoustics dot co dot uk]

------- Comment #1 from developer at sandoe-acoustics dot co dot uk  2010-03-26 12:16 -------
I believe that this test was not previously carried out with "-fgnu-runtime" .

So, technically I think it's a failed New test rather than a regression (but I
will triple-check a little later).

In any event, I don't suppose we want an ICE as a response to a command line
error.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43535

[Bug objc/43535] ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[howarth at nitro dot med dot uc dot edu]

------- Comment #2 from howarth at nitro dot med dot uc dot edu  2010-03-26 12:20 -------
A backtrace shows...

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
assemble_external (decl=0x0) at ../../gcc-4.5-20100325/gcc/varasm.c:2372
2372      if (!DECL_P (decl) || !DECL_EXTERNAL (decl) || !TREE_PUBLIC (decl))
(gdb) bt
#0  assemble_external (decl=0x0) at ../../gcc-4.5-20100325/gcc/varasm.c:2372
#1  0x000000010000d99f in objc_generate_write_barrier (lhs=<value temporarily
unavailable, due to optimizations>, modifycode=<value temporarily unavailable,
due to optimizations>, rhs=<value temporarily unavailable, due to
optimizations>) at ../../gcc-4.5-20100325/gcc/objc/objc-act.c:3152
#2  0x0000000100035cc2 in build_modify_expr (location=487750, lhs=0x1424328c0,
lhs_origtype=0x1424a09d8, modifycode=NOP_EXPR, rhs_loc=1112148440,
rhs=0x1424aa640, rhs_origtype=0x0) at
../../gcc-4.5-20100325/gcc/c-typeck.c:4815
#3  0x000000010006fd11 in c_parser_expr_no_commas (parser=<value temporarily
unavailable, due to optimizations>, after=<value temporarily unavailable, due
to optimizations>) at ../../gcc-4.5-20100325/gcc/c-parser.c:4609
#4  0x000000010006fe26 in c_parser_expression (parser=0x14154a038) at
../../gcc-4.5-20100325/gcc/c-parser.c:6000
#5  0x00000001000701d1 in c_parser_expression_conv (parser=0x14154a038) at
../../gcc-4.5-20100325/gcc/c-parser.c:6025
#6  0x0000000100073a1e in c_parser_statement_after_labels (parser=0x14154a038)
at ../../gcc-4.5-20100325/gcc/c-parser.c:3895
#7  0x0000000100075833 in c_parser_compound_statement_nostart
(parser=0x14154a038) at ../../gcc-4.5-20100325/gcc/c-parser.c:3575
#8  0x0000000100076d3d in c_parser_compound_statement (parser=0x14154a038) at
../../gcc-4.5-20100325/gcc/c-parser.c:3413
#9  0x0000000100074fac in c_parser_statement_after_labels (parser=0x14154a038)
at ../../gcc-4.5-20100325/gcc/c-parser.c:3988
#10 0x0000000100074c3d in c_parser_statement_after_labels (parser=0x14154a038)
at ../../gcc-4.5-20100325/gcc/c-parser.c:4018
#11 0x0000000100075833 in c_parser_compound_statement_nostart
(parser=0x14154a038) at ../../gcc-4.5-20100325/gcc/c-parser.c:3575
#12 0x0000000100076d3d in c_parser_compound_statement (parser=0x14154a038) at
../../gcc-4.5-20100325/gcc/c-parser.c:3413
#13 0x0000000100078d14 in c_parser_external_declaration (parser=0x14154a038) at
../../gcc-4.5-20100325/gcc/c-parser.c:6446
#14 0x0000000100079a44 in c_parse_file () at
../../gcc-4.5-20100325/gcc/c-parser.c:1005
#15 0x000000010005fe55 in c_common_parse_file (set_yydebug=<value temporarily
unavailable, due to optimizations>) at ../../gcc-4.5-20100325/gcc/c-opts.c:1283
#16 0x00000001005a9e08 in toplev_main (argc=25, argv=0x7fff5fbfeb78) at
../../gcc-4.5-20100325/gcc/toplev.c:1053
#17 0x0000000100001664 in start ()


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43535

Re: [Bug objc/43535] ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[Andrew Pinski]

I think there is an already filed bug about this option with the gnu  
runtime also. This option should not be supported or a nop there.

Sent from my iPhone

On Mar 26, 2010, at 5:16 AM, "developer at sandoe-acoustics dot co dot  
uk" <gcc-bugzilla@gcc.gnu.org> wrote:

>
>
> ------- Comment #1 from developer at sandoe-acoustics dot co dot uk   
> 2010-03-26 12:16 -------
> I believe that this test was not previously carried out with "-fgnu- 
> runtime" .
>
> So, technically I think it's a failed New test rather than a  
> regression (but I
> will triple-check a little later).
>
> In any event, I don't suppose we want an ICE as a response to a  
> command line
> error.
>
>
> -- 
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43535
>

[Bug objc/43535] ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[pinskia at gmail dot com]

------- Comment #3 from pinskia at gmail dot com  2010-03-26 16:14 -------
Subject: Re:  ICE on objc.dg/objc-gc-4.m -fgnu-runtime

I think there is an already filed bug about this option with the gnu  
runtime also. This option should not be supported or a nop there.

Sent from my iPhone

On Mar 26, 2010, at 5:16 AM, "developer at sandoe-acoustics dot co dot  
uk" <gcc-bugzilla@gcc.gnu.org> wrote:

>
>
> ------- Comment #1 from developer at sandoe-acoustics dot co dot uk   
> 2010-03-26 12:16 -------
> I believe that this test was not previously carried out with "-fgnu- 
> runtime" .
>
> So, technically I think it's a failed New test rather than a  
> regression (but I
> will triple-check a little later).
>
> In any event, I don't suppose we want an ICE as a response to a  
> command line
> error.
>
>
> -- 
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43535
>


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43535

[Bug objc/43535] ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[developer at sandoe-acoustics dot co dot uk]

------- Comment #4 from developer at sandoe-acoustics dot co dot uk  2010-03-26 16:36 -------
(In reply to comment #3)
> Subject: Re:  ICE on objc.dg/objc-gc-4.m -fgnu-runtime
>  This option should not be supported or a nop there.

if gc is incompatible with gnu runtime then that should be thrown out either in
options processing - or in objc init.. 
.. I'm happy to take on doing the latter ; the question then is
error 
or remove the flag and warn?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43535

[Bug objc/43535] ICE on objc.dg/objc-gc-4.m -fgnu-runtime

[howarth at nitro dot med dot uc dot edu]

------- Comment #5 from howarth at nitro dot med dot uc dot edu  2010-03-26 17:40 -------


*** This bug has been marked as a duplicate of 35996 ***


-- 

howarth at nitro dot med dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43535