[Bug target/59460] New: [4.9 Regression] ICE with -mips16 and __attribute__((nomips16))

[Bug target/59460] New: [4.9 Regression] ICE with -mips16 and __attribute__((nomips16))

[robert.suchanek at imgtec dot com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59460

            Bug ID: 59460
           Summary: [4.9 Regression] ICE with -mips16 and
                    __attribute__((nomips16))
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: robert.suchanek at imgtec dot com
            Target: mips16

A number of failures started to appear on the trunk for mips-elf target
(possibly other targets too) and all of the new failures are related
to the fix for PR58115. The following is a narrowed testcase that triggers
an ICE.

It crashes when attributes for a function try to override -mips16 argument
given on the commandline. I found another problem with the testcase when the
function takes an argument of type v2sf: the compiler segfaults due to
recursive calls, but this also points to the fix.


$ cat mips-ps-2.c
typedef float v2sf __attribute__ ((vector_size(8)));

__attribute__((nomips16)) v2sf foo () {}


$ mips-elf-gcc -mips32r2 -mfp64 -mips16 -mpaired-single -c mips-ps-2.c          
mips-ps-2.c: In function ‘foo’:                                                 
mips-ps-2.c:3:1: internal compiler error: in emit_move_multi_word, at
expr.c:3518                                                      
 __attribute__((nomips16)) v2sf foo () {}                                       
 ^                                                                              
0x736d43 emit_move_multi_word                                                   
        ../../gcc-trunk/gcc/expr.c:3518                                         
0x736061 emit_move_insn(rtx_def*, rtx_def*)                                     
        ../../gcc-trunk/gcc/expr.c:3650                                         
0x7b5d0a expand_function_end()                                                  
        ../../gcc-trunk/gcc/function.c:5120                                     
0x65fef0 construct_exit_block                                                   
        ../../gcc-trunk/gcc/cfgexpand.c:5282                                    
0x65fef0 gimple_expand_cfg                                                      
        ../../gcc-trunk/gcc/cfgexpand.c:5737                                    
0x65fef0 execute                                                                
        ../../gcc-trunk/gcc/cfgexpand.c:5932                                    
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Subject: [Bug fortran/34004] Accepts invalid: Ambigiuous interface with subroutine.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id4004

janus at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #12 from janus at gcc dot gnu.org ---
(In reply to Dominique d'Humieres from comment #9)
> > How about counting this as a "bug in the F03 standard" and closing the PR as
> > invalid (as suggested by Mikael)?
>
> If nobody want to do the changes for a diagnostic under -stdù5/f2003, I
> think it should be closed as WONTFIX to better reflect the situation.

Doing so.

[Bug target/59460] [4.9 Regression] ICE with -mips16 and __attribute__((nomips16))

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59460

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.9.0

[Bug target/59460] [4.9 Regression] ICE with -mips16 and __attribute__((nomips16))

[robert.suchanek at imgtec dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59460

--- Comment #1 from Robert Suchanek <robert.suchanek at imgtec dot com> ---
Ping

Where should I look at or what else could be done to resolve this without
reverting the patch for pr58115?

[Bug target/59460] [4.9 Regression] ICE with -mips16 and __attribute__((nomips16))

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59460

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |rsandifo at gcc dot gnu.org
         Resolution|---                         |FIXED

--- Comment #2 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Should be fixed now.  Please reopen if not though.