[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[konstantinos.margaritis at linaro dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693

Konstantinos Margaritis <konstantinos.margaritis at linaro dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |konstantinos.margaritis at
                   |                            |linaro dot org

--- Comment #7 from Konstantinos Margaritis <konstantinos.margaritis at linaro dot org> 2011-11-02 20:45:21 UTC ---
*** Bug 50968 has been marked as a duplicate of this bug. ***

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693

Mikael Pettersson <mikpe at it dot uu.se> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikpe at it dot uu.se

--- Comment #8 from Mikael Pettersson <mikpe at it dot uu.se> 2011-11-05 16:03:17 UTC ---
The bug still occurs with gcc-4.7-20111029 for arm-linux-gnueabi.

The problem is that dwarf2cfi.c:expand_builtin_init_dwarf_reg_sizes loops from
0 to FIRST_PSEUDO_REGISTER-1 assuming each value maps to a DWARF register. 
However, arm_dbx_register_number is a partial function which does
gcc_unreachable for several points in this range.  A quick check showed that
CC_REGNUM, FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM, the range of Cirrus FP
regnums, and (in my config) the high VFP regnums all caused gcc_unreachable.

I think the high VFP regnums issue is a fixable bug, the Cirrus regnums could
be mapped to the unspecified vendor range, and CC_REGNUM could be mapped to
CPSR (called SPSR in aadwarf?).  I don't know what FRAME_POINTER or ARG_POINTER
should map to though, since they're presumably eliminated virtual registers.

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[ramana at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693

--- Comment #9 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
Author: ramana
Date: Thu Jun 25 08:18:19 2015
New Revision: 224932

URL: https://gcc.gnu.org/viewcvs?rev=224932&root=gcc&view=rev
Log:
Fix PR target/29693



2015-06-25  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/29693
        * config/arm/arm.c (arm_dbx_register_number): Return
        DWARF_FRAME_REGISTERS by default.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[ramana at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693

Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |ramana at gcc dot gnu.org
         Resolution|---                         |FIXED
   Target Milestone|---                         |6.0

--- Comment #10 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
Hmmm atleast fixed for 6.0 ...

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[laurent at guerby dot net]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 783 bytes --]



------- Comment #6 from laurent at guerby dot net  2009-01-02 12:38 -------
gcc-4.3.2-1 debian gnueabi
pr29693.c: In function ‘init_dwarf_reg_size_table’:
pr29693.c:4: internal compiler error: in arm_dbx_register_number, at
config/arm/arm.c:18276


On trunk 142984
pr29693.c: In function 'init_dwarf_reg_size_table':
pr29693.c:4: internal compiler error: in arm_dbx_register_number, at
config/arm/arm.c:18631


-- 

laurent at guerby dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |laurent at guerby dot net
           Keywords|                            |ice-on-valid-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2008-09-28 23:43 -------
*** Bug 34151 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |deepak dot singal at
                   |                            |nechclst dot in


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2008-03-26 07:15 -------
*** Bug 35703 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rj dot sivakumar at dyansys
                   |                            |dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693

[Bug target/29693] ICE while compiling gcc-3.4.3 with gcc-4.1.1

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-11-24 03:43 -------
Reduced Testcase:
unsigned char dwarf_reg_size_table[63 +1];
init_dwarf_reg_size_table (void)
{
  __builtin_init_dwarf_reg_size_table (dwarf_reg_size_table);
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-11-24 03:43:57
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693