Bug 24292 - Can't build qemu 0.7.2
Summary: Can't build qemu 0.7.2
Status: RESOLVED DUPLICATE of bug 16185
Alias: None
Product: gcc
Classification: Unclassified
Component: target (show other bugs)
Version: 4.0.2
: P2 normal
Target Milestone: 4.0.2
Assignee: Not yet assigned to anyone
URL:
Keywords: ice-on-valid-code
Depends on:
Blocks:
 
Reported: 2005-10-09 23:31 UTC by John Richard Moser
Modified: 2005-10-10 00:22 UTC (History)
6 users (show)

See Also:
Host:
Target: i486-linux-gnu
Build:
Known to work:
Known to fail:
Last reconfirmed:

Attachments
the dot-i file thingy you guys wanted (30.41 KB, text/plain)
2005-10-09 23:49 UTC, John Richard Moser 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description John Richard Moser 2005-10-09 23:31:55 UTC 
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.
Comment 1 John Richard Moser 2005-10-09 23:49:32 UTC 
Created attachment 9949 [details]
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
Comment 2 Drea Pinski 2005-10-10 00:21:44 UTC 
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.
Comment 3 Drea Pinski 2005-10-10 00:22:41 UTC 
This is a dup of bug 16185.

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