[Bug c/23196] New: ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[Bug c/23196] New: ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[zlynx at acm dot org]

# gcc -v
Using built-in specs.
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/gcc-4.1.0_beta20050730/work/gcc-4.1-20050730/configure
--enable-version-specific-runtime-libs --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.1.0-beta20050730
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.0-beta20050730/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.0-beta20050730
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.0-beta20050730/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.0-beta20050730/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.0-beta20050730/include/g++-v4
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec
--enable-nls --without-included-gettext --with-system-zlib --disable-checking
--disable-werror --disable-libunwind-exceptions --enable-multilib
--disable-libgcj --enable-languages=c,c++,f95 --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 4.1.0 20050730 (experimental)

 # gcc -march=athlon64 -O1 -fforce-addr    -c /tmp/j1.c
rlogin.c: In function 'do_rlogin':
rlogin.c:181: error: unrecognizable insn:
(insn 116 187 118 13 (parallel [
            (set (mem/s/j:SI (reg/f:DI 102) [0 termio.c_iflag+0 S4 A64])
                (ior:SI (mem/s/j:SI (reg/f:DI 103) [0 termio.c_iflag+0 S4 A64])
                    (const_int 1280 [0x500])))
            (clobber (reg:CC 17 flags))
        ]) -1 (nil)
    (nil))
rlogin.c:181: internal compiler error: in instantiate_virtual_regs_in_insn, at
function.c:1539

j1.c will be attached.  (It's a preprocessed rlogin.c from the "shadow" package)

-- 
           Summary: ICE instantiate_virtual_regs_in_insn when -fforce-addr
                    used
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zlynx at acm dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196

[Bug c/23196] ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[zlynx at acm dot org]

------- Additional Comments From zlynx at acm dot org  2005-08-02 10:59 -------
Created an attachment (id=9410)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9410&action=view)
preprocessed source to reproduce


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196

[Bug c/23196] ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-08-02 11:16 -------
Also happens on i686-pc-linux-gnu.
Reducing.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196

[Bug rtl-optimization/23196] [4.1 Regression] ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-08-02 11:26 -------
Confirmed.
Reduced testcase (compile with "-O -fforce-addr"):

=================
void foo()
{
  char c;

  c |= 1;
  bar(&c);
}
=================


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |rtl-optimization
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code, monitored
   Last reconfirmed|0000-00-00 00:00:00         |2005-08-02 11:26:58
               date|                            |
            Summary|ICE                         |[4.1 Regression] ICE
                   |instantiate_virtual_regs_in_|instantiate_virtual_regs_in_
                   |insn when -fforce-addr used |insn when -fforce-addr used
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196

[Bug target/23196] [4.1 Regression] ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[rth at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rth at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2005-08-02 11:26:58         |2005-08-02 17:43:23
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196

[Bug target/23196] [4.1 Regression] ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-08-02 20:39 -------
Subject: Bug 23196

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rth@gcc.gnu.org	2005-08-02 20:39:24

Modified files:
	gcc            : ChangeLog explow.c 
Added files:
	gcc/testsuite/gcc.c-torture/compile: 20050802-1.c 

Log message:
	PR 23196
	* explow.c (memory_address): Remove special-case for
	virtual_stack_vars_rtx and virtual_incoming_args_rtx.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9638&r2=2.9639
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/explow.c.diff?cvsroot=gcc&r1=1.148&r2=1.149
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20050802-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196

[Bug target/23196] [4.1 Regression] ICE instantiate_virtual_regs_in_insn when -fforce-addr used

[rth at gcc dot gnu dot org]

------- Additional Comments From rth at gcc dot gnu dot org  2005-08-02 20:46 -------
Fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196