[Bug target/11084] New: [mips] regression from 3.2 ICE in propagate_one_insn, at flow.c:1639

[Bug target/11084] New: [mips] regression from 3.2 ICE in propagate_one_insn, at flow.c:1639

[debian-gcc@lists.debian.org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084

           Summary: [mips] regression from 3.2 ICE in propagate_one_insn, at
                    flow.c:1639
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: debian-gcc@lists.debian.org
                CC: gcc-bugs@gcc.gnu.org
 GCC build triplet: mipsel-linux
  GCC host triplet: mipsel-linux
GCC target triplet: mipsel-linux

I've gotten a bunch of these errors with 3.3 that don't happen with gcc 3.2.3
20030415 (Debian prerelease).  


Reading specs from /usr/lib/gcc-lib/mipsel-linux/3.3/specs
Configured with: ../src/configure -v
--enable-languages=c,c++,f77,pascal,objc,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib
--enable-nls --without-included-gettext --enable-__cxa_atexit
--enable-clocale=gnu --enable-debug --enable-objc-gc mips-linux
Thread model: posix
gcc version 3.3 (Debian)

gcc -save-temps -c -g -O2 -fno-strict-aliasing -Wall -Wstrict-prototypes -I.
-I../Include -DHAVE_CONFIG_H -o Python/errors.o ../Python/errors.c
../Python/errors.c: In function `PyErr_Format':
../Python/errors.c:514: error: Attempt to delete prologue/epilogue insn:
(insn 854 656 855 0 (nil) (set (mem:SI (plus:SI (reg/f:SI 29 sp)
                (const_int 84 [0x54])) [0 S4 A32])
        (reg:SI 5 a1)) -1 (nil)
    (nil))
../Python/errors.c:514: internal compiler error: in propagate_one_insn, at
flow.c:1639



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[Bug target/11084] [mips] regression from 3.2 ICE in propagate_one_insn, at flow.c:1639

[debian-gcc@lists.debian.org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084



------- Additional Comments From debian-gcc@lists.debian.org  2003-06-04 02:18 -------
Created an attachment (id=4158)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4158&action=view)
preprocessed source




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[Bug target/11084] [mips] regression from 3.2 ICE in propagate_one_insn, at flow.c:1639

[rmurray@debian.org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084


rmurray@debian.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rmurray@debian.org





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[Bug target/11084] [mips] regression from 3.2 ICE in propagate_one_insn, at flow.c:1639

[debian-gcc@lists.debian.org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084


debian-gcc@lists.debian.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
           Priority|P2                          |P1





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[Bug target/11084] [mips] regression from 3.2 ICE in propagate_one_insn, at flow.c:1639

[dhazeghi@yahoo.com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084



------- Additional Comments From dhazeghi@yahoo.com  2003-06-05 00:20 -------
Created an attachment (id=4171)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4171&action=view)
reduced testcase.i




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[Bug target/11084] [mips] regression from 3.2 ICE in propagate_one_insn, at flow.c:1639

[dhazeghi@yahoo.com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084


dhazeghi@yahoo.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-06-05 00:22:03
               date|                            |


------- Additional Comments From dhazeghi@yahoo.com  2003-06-05 00:22 -------
Confirmed with gcc 3.3 branch and mainline (20030604). Took me a while, because this is not 
reproducible with mipsel-elf target. Hopefully the reduced testcase I've attached will help track 
this one down...

Dara



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[Bug target/11084] [3.3/3.4 regression] ICE in propagate_one_insn, at flow.c:1639

[pinskia@physics.uc.edu]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084


pinskia@physics.uc.edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4                         |3.3.1

[Bug target/11084] [3.3/3.4 regression] ICE in propagate_one_insn, at flow.c:1639

[rsandifo at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084


rsandifo at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2003-06-05 00:22:03         |2003-06-23 18:13:32
               date|                            |


------- Additional Comments From rsandifo at gcc dot gnu dot org  2003-06-23 18:13 -------
With permission.  Testing a fix now.

[Bug target/11084] [3.3/3.4 regression] ICE in propagate_one_insn, at flow.c:1639

[rsandifo at gcc dot gnu dot org]

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rsandifo at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|echristo at redhat dot com  |rsandifo at redhat dot com
             Status|ASSIGNED                    |NEW


------- Additional Comments From rsandifo at gcc dot gnu dot org  2003-06-23 18:18 -------
Used the wrong bugzilla option.  Let's try that again...

[Bug target/11084] [3.3/3.4 regression] ICE in propagate_one_insn, at flow.c:1639

[rsandifo at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084


rsandifo at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2003-06-23 18:13:32         |2003-06-23 18:20:53
               date|                            |


------- Additional Comments From rsandifo at gcc dot gnu dot org  2003-06-23 18:20 -------
Oh for the love of a duck. ;)  Why does changing the assignee make the
status go from ASSIGNED to NEW?

[Bug target/11084] [3.3/3.4 regression] ICE in propagate_one_insn, at flow.c:1639

[cvs-commit at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-06-25 07:14 -------
Subject: Bug 11084

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	rsandifo@gcc.gnu.org	2003-06-25 06:50:57

Modified files:
	gcc            : ChangeLog 
	gcc/config/mips: mips.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/compile: 20030625-1.c 

Log message:
	PR target/11084
	* config/mips/mips.c (mips_expand_prologue): Fix setting of regno
	for the end of a variable argument list.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.614&r2=1.16114.2.615
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/mips/mips.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.241.2.2&r2=1.241.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.201&r2=1.2261.2.202
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20030625-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.2.1

[Bug target/11084] [3.3/3.4 regression] ICE in propagate_one_insn, at flow.c:1639

[rsandifo at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11084


rsandifo at gcc dot gnu dot org changed:

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


------- Additional Comments From rsandifo at gcc dot gnu dot org  2003-06-25 07:24 -------
The commit message in the audit trail is for 3.3.  See:

    http://gcc.gnu.org/ml/gcc-patches/2003-06/msg02766.html

for a full description.  I submitted a different version for 3.4:

    http://gcc.gnu.org/ml/gcc-patches/2003-06/msg02768.html

However, an earlier patch means that the bug no longer causes an ICE
in 3.4 sources.  I'll go ahead and close this as fixed in both branch
and trunk.