[Bug c/24292] New: Can't build qemu 0.7.2

[Bug c/24292] New: Can't build qemu 0.7.2

[nigelenki at comcast dot net]

Trying to build qemu 0.7.2 gives the following error:

/tmp/qemu-0.7.2/target-i386/ops_sse.h: In function 'op_pshufw_mmx':
/tmp/qemu-0.7.2/target-i386/ops_sse.h:574: error: unable to find a register to
spill in class 'GENERAL_REGS'
/tmp/qemu-0.7.2/target-i386/ops_sse.h:574: error: this is the insn:
(insn:HI 18 17 19 0 /tmp/qemu-0.7.2/target-i386/ops_sse.h:569 (set
(strict_low_part (subreg:HI (reg/v:DI 63 [ r ]) 0))
        (mem/s/j:HI (plus:SI (mult:SI (reg:SI 64)
                    (const_int 2 [0x2]))
                (reg/v/f:SI 59 [ s ])) [0 <variable>._w S2 A16])) 52
{*movstricthi_1} (insn_list:REG_DEP_TRUE 16 (insn_list:REG_DEP_TRUE 12
(insn_list:REG_DEP_TRUE 53 (nil))))
    (expr_list:REG_DEAD (reg:SI 64)
        (nil)))
/tmp/qemu-0.7.2/target-i386/ops_sse.h:574: confused by earlier errors, bailing
out
make[1]: *** [op.o] Error 1


The related code appears to be:


void OPPROTO glue(op_pshufw, SUFFIX) (void)
{
    Reg r, *d, *s;
    int order;
    d = (Reg *)((char *)env + PARAM1);
    s = (Reg *)((char *)env + PARAM2);
    order = PARAM3;
    r.W(0) = s->W(order & 3);
    r.W(1) = s->W((order >> 2) & 3);
    r.W(2) = s->W((order >> 4) & 3);
    r.W(3) = s->W((order >> 6) & 3);
    *d = r;
}


My version information is:


bluefox@icebox:/tmp/qemu-0.7.2$ gcc -v
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr
--with-gxx-include-dir=/usr/include/c++/4.0.2 --enable-shared
--with-system-zlib --libexecdir=/usr/lib --enable-nls
--without-included-gettext --enable-threads=posix --program-suffix=-4.0
--enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu
--enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk
--enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre
--enable-mpfr --disable-werror --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu9)


qemu can be found at qemu.org; I had unpacked qemu, cd'd into the directory,
and unpacked kqemu into it, then ran ./configure and make, each with no
options, as the kqemu documentation says.


-- 
           Summary: Can't build qemu 0.7.2
           Product: gcc
           Version: 4.0.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: nigelenki at comcast dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24292

[Bug target/24292] Can't build qemu 0.7.2

[nigelenki at comcast dot net]

------- Comment #1 from nigelenki at comcast dot net  2005-10-09 23:49 -------
Created an attachment (id=9949)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9949&action=view)
the dot-i file thingy you guys wanted

the thingy that appeared in a completely different directory than related .c
and .h files o.o


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24292

[Bug target/24292] Can't build qemu 0.7.2

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2005-10-10 00:21 -------
Reduced testcase:
register struct CPUX86State *env asm("ebp");
register unsigned long T0 asm("ebx");
register unsigned long T1 asm("esi");
register unsigned long T2 asm("edi");


extern int __op_param1, __op_param2, __op_param3;

void op_movq(void)
{
     unsigned long long*d, *s;
    d = (unsigned long long *)((char *)env + ((long)(&__op_param1)));
    s = (unsigned long long *)((char *)env + ((long)(&__op_param2)));
    *d = *s;
}


-----

Hmm, you are starving the RA, so in a way this is not a bug.  There is a dup of
this bug too.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24292

[Bug target/24292] Can't build qemu 0.7.2

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2005-10-10 00:22 -------
This is a dup of bug 16185.

*** This bug has been marked as a duplicate of 16185 ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24292