[Bug target/31364] New: [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[Bug target/31364] New: [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[tbm at cyrius dot com]

I get the following ICE during bootstrap on powerpc with current SVN (revision
123217):

(sid)227:tbm@test: ..build/powerpc-linux-gnu/64]
/home/tbm/build/gcc-snapshot-20070326/build/./gcc/xgcc
-B/home/tbm/build/gcc-snapshot-20070326/build/./gcc/
-B/usr/lib/gcc-snapshot/powerpc-linux-gnu/bin/
-B/usr/lib/gcc-snapshot/powerpc-linux-gnu/lib/ -isystem
/usr/lib/gcc-snapshot/powerpc-linux-gnu/include -isystem
/usr/lib/gcc-snapshot/powerpc-linux-gnu/sys-include -g -fkeep-inline-functions 
   -DIN_GCC        -isystem ./include  -fPIC     -I. -I. -I../.././gcc
-I../../../src/libgcc -I../../../src/libgcc/. -I../../../src/libgcc/../gcc
-I../../../src/libgcc/../include -I../../../src/libgcc/../libdecnumber/dpd
-I../../../src/libgcc/../libdecnumber -I../../libdecnumber -o _subvsi3.o 
-DL_subvsi3 -c ../../../src/libgcc/../gcc/libgcc2.c
../../../src/libgcc/../gcc/libgcc2.c: In function '__subvsi3':
../../../src/libgcc/../gcc/libgcc2.c:131: error: unrecognizable insn:
(call_insn 42 40 43 7 ../../../src/libgcc/../gcc/libgcc2.c:128 (parallel [
            (call (mem:SI (symbol_ref:SI ("abort") [flags 0x41] <function_decl
0xf7f4b600 abort>) [0 S4 A8])
                (const_int 0 [0x0]))
            (use (const_int 0 [0x0]))
            (clobber (scratch:SI))
        ]) -1 (nil)
    (expr_list:REG_NORETURN (const_int 0 [0x0])
        (expr_list:REG_EH_REGION (const_int 0 [0x0])
            (nil)))
    (expr_list:REG_DEP_TRUE (use (reg:SI 30 30))
        (nil)))
../../../src/libgcc/../gcc/libgcc2.c:131: internal compiler error: in
extract_insn, at recog.c:2119
Please submit a full bug report,


-- 
           Summary: [4.3 Regression] ICE in extract_insn, at recog.c:2119
                    during bootstrap
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com
GCC target triplet: powerpc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[tbm at cyrius dot com]

------- Comment #1 from tbm at cyrius dot com  2007-03-26 16:51 -------
Reduced testcase, you need -fPIC:

struct _pthread_fastlock
{
}
pthread_mutexattr_t;
extern void abort (void) __attribute__ ((__nothrow__))
  __attribute__ ((__noreturn__));
typedef int SItype __attribute__ ((mode (SI)));
__subvsi3 (SItype a, SItype b)
{
    abort ();
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[tbm at cyrius dot com]

------- Comment #2 from tbm at cyrius dot com  2007-03-26 16:55 -------
Further reduced (-fPIC):

__subvsi3 ()
{
    abort ();
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-03-27 07:28 -------
I cannot reproduce this with powerpc64-linux-gnu configured to default to
32bits (that is --with-cpu=default32).


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[tbm at cyrius dot com]

------- Comment #4 from tbm at cyrius dot com  2007-03-27 09:59 -------
I configured with:

                ../src/configure -v
--enable-languages=c,c++,java,fortran,objc,obj-c++,ada,treelang
--prefix=/usr/lib/gcc-snapshot --enable-shared --with-system-zlib 
--disable-nls --enable-__cxa_atexit --enable-clocale=gnu
--enable-libstdcxx-debug --enable-java-maintainer-mode
--enable-java-awt=gtk-default --enable-gtk-cairo --enable-plugin
--with-java-home=/usr/lib/gcc-snapshot/jre
--with-ecj-jar=/usr/share/java/ecj.jar --enable-mpfr --disable-softfloat
--enable-secureplt --enable-targets=powerpc-linux,powerpc64-linux
--with-cpu=default32 --disable-werror powerpc-linux-gnu

There is a full build log at
http://buildd.debian.org/fetch.cgi?&pkg=gcc-snapshot&ver=20070326-1&arch=powerpc&stamp=1174959579&file=log

Hmm, there are some locale patches.  I need to check whether they cause it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[tbm at gcc dot gnu dot org]

------- Comment #5 from tbm at gcc dot gnu dot org  2007-03-27 10:56 -------
*** Bug 31371 has been marked as a duplicate of this bug. ***


-- 

tbm at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |debian-gcc at lists dot
                   |                            |debian dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-03-27 16:42 -------
It must be related to "--enable-secureplt" which I don't enable.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] ICE in extract_insn, at recog.c:2119 during bootstrap

[tbm at cyrius dot com]

------- Comment #7 from tbm at cyrius dot com  2007-03-27 18:01 -------
(In reply to comment #6)
> It must be related to "--enable-secureplt" which I don't enable.

You are, of course, correct.  You can reproduce it with:

--enable-languages=c --enable-secureplt  powerpc-linux-gnu

Any idea who might be responsible and how to go about to get this fixed?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #8 from pinskia at gcc dot gnu dot org  2007-03-27 19:45 -------
Confirmed, looking into it.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |build, ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2007-03-27 19:45:11
               date|                            |
            Summary|[4.3 Regression] ICE in     |[4.3 Regression] secureplt
                   |extract_insn, at            |breaks bootstrap
                   |recog.c:2119 during         |
                   |bootstrap                   |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #9 from pinskia at gcc dot gnu dot org  2007-03-27 19:57 -------
I think I found the missing conversion of using LR register explictly.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pinskia at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2007-03-27 19:45:11         |2007-03-27 19:57:28
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #10 from pinskia at gcc dot gnu dot org  2007-03-27 20:07 -------
The patch which I am testing:
Index: config/rs6000/rs6000.md
===================================================================
--- config/rs6000/rs6000.md     (revision 123248)
+++ config/rs6000/rs6000.md     (working copy)
@@ -10715,7 +10715,9 @@
                                     gen_rtx_MEM (SImode, operands[0]),
                                     operands[1]),
                       gen_rtx_USE (VOIDmode, operands[2]),
-                      gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (SImode)));
+                      gen_rtx_CLOBBER (VOIDmode,
+                                       gen_rtx_REG (Pmode,
+                                                    LINK_REGISTER_REGNUM)));
       call = emit_call_insn (gen_rtx_PARALLEL (VOIDmode, tmp));
       use_reg (&CALL_INSN_FUNCTION_USAGE (call), pic_offset_table_rtx);
       DONE;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #11 from pinskia at gcc dot gnu dot org  2007-03-27 20:33 -------
I missed another gen_rtx_SCARTCH also:
Index: gcc/gcc/config/rs6000/rs6000.md
===================================================================
--- gcc/gcc/config/rs6000/rs6000.md     (revision 123248)
+++ gcc/gcc/config/rs6000/rs6000.md     (working copy)
@@ -10715,7 +10715,9 @@
                                     gen_rtx_MEM (SImode, operands[0]),
                                     operands[1]),
                       gen_rtx_USE (VOIDmode, operands[2]),
-                      gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (SImode)));
+                      gen_rtx_CLOBBER (VOIDmode,
+                                       gen_rtx_REG (Pmode,
+                                                    LINK_REGISTER_REGNUM)));
       call = emit_call_insn (gen_rtx_PARALLEL (VOIDmode, tmp));
       use_reg (&CALL_INSN_FUNCTION_USAGE (call), pic_offset_table_rtx);
       DONE;
@@ -10788,7 +10790,9 @@
                                                               operands[1]),
                                                  operands[2])),
                       gen_rtx_USE (VOIDmode, operands[3]),
-                      gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (SImode)));
+                      gen_rtx_CLOBBER (VOIDmode,
+                                       gen_rtx_REG (Pmode,
+                                                     LINK_REGISTER_REGNUM))));
       call = emit_call_insn (gen_rtx_PARALLEL (VOIDmode, tmp));
       use_reg (&CALL_INSN_FUNCTION_USAGE (call), pic_offset_table_rtx);
       DONE;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[tbm at cyrius dot com]

------- Comment #12 from tbm at cyrius dot com  2007-03-27 20:44 -------
(In reply to comment #11)
> +                                                     LINK_REGISTER_REGNUM))));

This should be: LINK_REGISTER_REGNUM)));


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[tbm at cyrius dot com]

------- Comment #13 from tbm at cyrius dot com  2007-03-28 04:04 -------
Bootstrap is successful with your patch.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[tbm at cyrius dot com]

------- Comment #14 from tbm at cyrius dot com  2007-03-28 11:51 -------
Results are in, and it looks good.  A bootstrap with the following languages
works fine: --enable-languages=c,c++,java,fortran,objc,obj-c++,ada,treelang

The test results with --enable-secureplt actually look better than
without this option.  The following failures show up without the option
enabled. (I didn't investigate why though, maybe those tests are simply
not being run with --enable-secureplt).

+FAIL:  c954026
-FAIL: gfortran.dg/secnds.f  -O2  execution test
+FAIL: gfortran.dg/secnds-1.f  -O2  execution test
+FAIL: gfortran.dg/secnds-1.f  -Os  execution test
+FAIL: gfortran.dg/secnds.f  -O1  execution test
+FAIL: gfortran.dg/secnds.f  -O3 -fomit-frame-pointer  execution test
+FAIL: gfortran.dg/secnds.f  -O1  execution test


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[debian-gcc at lists dot debian dot org]

------- Comment #15 from debian-gcc at lists dot debian dot org  2007-03-28 19:23 -------
maybe related: http://sourceware.org/bugzilla/show_bug.cgi?id=4267

building current 4.2 branch configured with --enable-secureplt
--enable-libstdcxx-debug, with current binutils trunk results in an ld segfault
which is not seen without the --enable-secureplt option.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #16 from pinskia at gcc dot gnu dot org  2007-03-28 19:24 -------
(In reply to comment #15)
> maybe related: http://sourceware.org/bugzilla/show_bug.cgi?id=4267

It is unrelated really.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #17 from pinskia at gcc dot gnu dot org  2007-03-31 22:29 -------
Subject: Bug 31364

Author: pinskia
Date: Sat Mar 31 22:29:21 2007
New Revision: 123390

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=123390
Log:
2007-03-31  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31364
        * config/rs6000/rs6000.md (call): Convert to LR hard reg for
        secureplt.
        (call_value): Likewise.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.md


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364

[Bug target/31364] [4.3 Regression] secureplt breaks bootstrap

[pinskia at gcc dot gnu dot org]

------- Comment #18 from pinskia at gcc dot gnu dot org  2007-03-31 22:30 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31364