[Bug c/12353] New: ICE in copyprop_hardreg_forward_1

[Bug c/12353] New: ICE in copyprop_hardreg_forward_1

[green at redhat dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12353

           Summary: ICE in copyprop_hardreg_forward_1
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: green at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

I stumbled across this while building a mips-elf-gas with a recent x86 Linux
compiler.  I'll attach the .i file to this bug.

$ gcc -c dwarf2dbg.i -O2
../../src/HEAD-2003-09-21/gas/dwarf2dbg.c: In function `dwarf2_finish':
 
../../src/HEAD-2003-09-21/gas/dwarf2dbg.c:1198: error: insn does not satisfy its
constraints:
(insn 1230 1229 1231 52 (set (strict_low_part (reg:QI 4 sil))
        (eq:QI (reg:CCZ 17 flags)
            (const_int 0 [0x0]))) 363 {setcc_2} (insn_list 1228 (insn_list 1229
(nil)))
    (expr_list:REG_DEAD (reg:CCZ 17 flags)
        (nil)))
../../src/HEAD-2003-09-21/gas/dwarf2dbg.c:1198: internal compiler error: in
copyprop_hardreg_forward_1, at regrename.c:1543
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

[Bug c/12353] ICE in copyprop_hardreg_forward_1

[green at redhat dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12353



------- Additional Comments From green at redhat dot com  2003-09-21 15:01 -------
Created an attachment (id=4791)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4791&action=view)
Test case

[Bug c/12353] ICE in copyprop_hardreg_forward_1

[graham dot stott at btinternet dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12353



------- Additional Comments From graham dot stott at btinternet dot com  2003-09-21 15:21 -------
Subject: Re:  New: ICE in copyprop_hardreg_forward_1

I'm just about to commit a patch that fixes this which was OK'd by ~rth way back in Jun
but I forgot to commit following the ack.

Graham

[Bug c/12353] ICE in copyprop_hardreg_forward_1

[cvs-commit 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=12353



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-09-21 15:25 -------
Subject: Bug 12353

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	grahams@gcc.gnu.org	2003-09-21 15:25:14

Modified files:
	gcc            : ChangeLog 

Log message:
	PR target/12353
	* config/i386/i386.md(ffs_no_cmove): Fix operand 2 constraint.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1110&r2=2.1111

[Bug c/12353] ICE in copyprop_hardreg_forward_1

[cvs-commit 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=12353



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-09-21 15:27 -------
Subject: Bug 12353

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	grahams@gcc.gnu.org	2003-09-21 15:27:00

Modified files:
	gcc/config/i386: i386.md 

Log message:
	PR target/12353
	* config/i386/i386.md(ffs_no_cmove): Fix operand 2 constraint.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&r1=1.481&r2=1.482

[Bug target/12353] [3.4 ICE in copyprop_hardreg_forward_1

[pinskia 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=12353


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
          Component|c                           |target
           Keywords|                            |ice-on-valid-code
         Resolution|                            |FIXED
            Summary|ICE in                      |[3.4 ICE in
                   |copyprop_hardreg_forward_1  |copyprop_hardreg_forward_1
   Target Milestone|---                         |3.4


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-09-21 18:01 -------
Fixed by the patch below.