While booting linux-test 0.2 following sequence of instructions is seen: IN: 0xc03227aa: mov %esi,%edx 0xc03227ac: xor %ecx,%ecx 0xc03227ae: movzwl 0x12(%esp),%ebp 0xc03227b3: mov %edi,%eax 0xc03227b5: sar %cl,%eax 0xc03227b7: and $0x1,%eax 0xc03227ba: je 0xc0322802
OP after liveness analysis: mov_i32 tmp0,esi mov_i32 edx,tmp0 nopn $0x2,$0x2 movi_i32 ecx,$0x0 discard cc_src movi_i32 cc_dst,$0x0 mov_i32 tmp2,esp movi_i32 tmp13,$0x12 add_i32 tmp2,tmp2,tmp13 qemu_ld16u tmp0,tmp2,$0x0 mov_i32 ebp,tmp0 mov_i32 tmp0,edi mov_i32 eax,tmp0 nopn $0x2,$0x2 mov_i32 tmp0,eax nopn $0x2,$0x2 movi_i32 tmp1,$0x0 nopn $0x2,$0x2 movi_i32 tmp10,$0xffffffff sar_i32 tmp3,tmp0,tmp10 Doesn't make much sense to me, guest clearly asked for 0 and not -1, besides -1 violates TCG's sar constraints and PPC obliges by emiting illegal instruction in this case. -- mailto:av1...@comtv.ru
