[Bug bootstrap/41397] New: [4.5 regression] RTL checking failure compiling libiberty

[Bug bootstrap/41397] New: [4.5 regression] RTL checking failure compiling libiberty

[ebotcazou at gcc dot gnu dot org]

At revision 151832 I get

/home/eric/build/gcc/native/./prev-gcc/xgcc
-B/home/eric/build/gcc/native/./prev-gcc/
-B/home/eric/install/gcc/x86_64-suse-linux/bin/
-B/home/eric/install/gcc/x86_64-suse-linux/bin/
-B/home/eric/install/gcc/x86_64-suse-linux/lib/ -isystem
/home/eric/install/gcc/x86_64-suse-linux/include -isystem
/home/eric/install/gcc/x86_64-suse-linux/sys-include    -c -DHAVE_CONFIG_H -g
-O2  -I. -I/home/eric/svn/gcc/libiberty/../include  -W -Wall -Wwrite-strings
-Wc++-compat -Wstrict-prototypes -pedantic 
/home/eric/svn/gcc/libiberty/regex.c -o regex.o
In file included from /home/eric/svn/gcc/libiberty/regex.c:638:0:
/home/eric/svn/gcc/libiberty/regex.c: In function 'byte_re_match_2_internal':
/home/eric/svn/gcc/libiberty/regex.c:7476:5: warning: jump skips variable
initialization
/home/eric/svn/gcc/libiberty/regex.c:5952:12: note: label 'restore_best_regs'
defined here
/home/eric/svn/gcc/libiberty/regex.c:5913:16: note: 'same_str_p' declared here
/home/eric/svn/gcc/libiberty/regex.c: In function
'byte_common_op_match_null_string_p':
/home/eric/svn/gcc/libiberty/regex.c:7724:1: internal compiler error: RTL
check: expected code 'reg', have 'mem' in rhs_regno, at rtl.h:1049
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [regex.o] Error 1
make[3]: Leaving directory `/home/eric/build/gcc/native/libiberty'
make[2]: *** [all-stage3-libiberty] Error 2
make[2]: Leaving directory `/home/eric/build/gcc/native'
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory `/home/eric/build/gcc/native'
make: *** [all] Error 2

This is with an --enable-checking=yes,rtl compiler.


-- 
           Summary: [4.5 regression] RTL checking failure compiling
                    libiberty
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ebotcazou at gcc dot gnu dot org
 GCC build triplet: x86_64-*-*
  GCC host triplet: x86_64-*-*
GCC target triplet: x86_64-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41397

[Bug bootstrap/41397] [4.5 regression] RTL checking failure compiling libiberty

[ebotcazou at gcc dot gnu dot org]

------- Comment #1 from ebotcazou at gcc dot gnu dot org  2009-09-18 09:55 -------
Likewise on i586.


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|x86_64-*-*                  |x86_64-*-* ix86-*-*
   GCC host triplet|x86_64-*-*                  |x86_64-*-* ix86-*-*
 GCC target triplet|x86_64-*-*                  |x86_64-*-* ix86-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41397

[Bug bootstrap/41397] [4.5 regression] RTL checking failure compiling libiberty

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2009-09-18 10:03 -------
See the dwarf2out.c part of
http://gcc.gnu.org/ml/gcc-patches/2009-09/msg01017.html
which fixes this.
If approved separately, I could commit just that part.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-09-18 10:03:14
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41397

[Bug bootstrap/41397] [4.5 regression] RTL checking failure compiling libiberty

[ebotcazou at gcc dot gnu dot org]

------- Comment #3 from ebotcazou at gcc dot gnu dot org  2009-09-18 10:06 -------
> See the dwarf2out.c part of
> http://gcc.gnu.org/ml/gcc-patches/2009-09/msg01017.html
> which fixes this.

Strange, the same builds (with RTL checking) passed yesterday.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41397

[Bug bootstrap/41397] [4.5 regression] RTL checking failure compiling libiberty

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2009-09-18 23:17 -------
Subject: Bug 41397

Author: jakub
Date: Fri Sep 18 23:17:25 2009
New Revision: 151872

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151872
Log:
        PR bootstrap/41397
        * dwarf2out.c (mem_loc_descriptor) <case SUBREG>: Recurse
        instead of assuming it has always a REG inside of it.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41397

[Bug bootstrap/41397] [4.5 regression] RTL checking failure compiling libiberty

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2009-09-18 23:26 -------
Fixed.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41397

[Bug bootstrap/41397] [4.5 regression] RTL checking failure compiling libiberty

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41397