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[Qemu-devel] Still compile problems with TCG

From: Johannes Schindelin
Subject: [Qemu-devel] Still compile problems with TCG
Date: Wed, 27 Feb 2008 10:23:17 +0000 (GMT)
User-agent: Alpine 1.00 (LSU 882 2007-12-20)


I still have problems (Pentium M, gcc (GCC) 4.1.2 20061115 (prerelease) 
(SUSE Linux)):

make -C i386-linux-user all
make[1]: Entering directory `/home/gitte/qemu/i386-linux-user'
gcc -Wall -O2 -g -fno-strict-aliasing  -fno-reorder-blocks  -fno-gcse  
-fno-tree-ch  -fno-optimize-sibling-calls  -fno-crossjumping  -fno-align-labels 
 -fno-align-jumps  -fno-align-functions   -mpreferred-stack-boundary=2 
-fomit-frame-pointer -DCONFIG_HAS_LINUX_COMPILER_H=1 -m32 -I. -I.. 
-I/home/gitte/qemu/target-i386 -I/home/gitte/qemu -MMD -MP -DNEED_CPU_H 
-I/home/gitte/qemu/tcg/i386 -I/home/gitte/qemu/fpu 
-I/home/gitte/qemu/linux-user -I/home/gitte/qemu/linux-user/i386 -c -o op.o 
/home/gitte/qemu/target-i386/ops_sse.h: In function ‘op_pshufw_mmx’:
/home/gitte/qemu/target-i386/ops_sse.h:593: error: unable to find a register to 
spill in class ‘GENERAL_REGS’
/home/gitte/qemu/target-i386/ops_sse.h:593: error: this is the insn:
(insn:HI 17 16 18 0 /home/gitte/qemu/target-i386/ops_sse.h:588 (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])) 40 
{*movstricthi_1} (insn_list:REG_DEP_TRUE 51 (insn_list:REG_DEP_TRUE 12 
(insn_list:REG_DEP_TRUE 16 (nil))))
    (expr_list:REG_DEAD (reg:SI 64)
/home/gitte/qemu/target-i386/ops_sse.h:593: confused by earlier errors, bailing 
make[1]: *** [op.o] Fehler 1
make[1]: Leaving directory `/home/gitte/qemu/i386-linux-user'
make: *** [subdir-i386-linux-user] Fehler 2

This is current CVS + patch to detect linux/compiler.h for SuSE.

FWIW, line 588 in my current target-i386/ops_sse.h is

        r.W(0) = s->W(order & 3);

in the function

        void OPPROTO glue(op_pshufw, SUFFIX) (void)

Can anybody provide me with enough clues to fix it?


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