[PATCH qemu 1/1] target/i386: Fix gen_shift_rm_T1, wrong eflags calculation

[~vilenka <vilenka@git.sr.ht>]

From: Vilen Kamalov <vilen.kamalov@gmail.com>

gen_shift_rm_T1 in the uses wrong tmp0 register, eflags calculation uses tmp4 at target/i386/tcg/translate.c, line 5488
`tcg_gen_mov_tl(cpu_cc_src, s->tmp4);`

QEMU fails to pass int3 in next sample, vs real cpu
-------------
push rcx
mov dword ptr [rsp], 010000000h
mov rcx, 01eh
sar dword ptr [rsp], cl
jnc pass1
int 3
pass1:
mov dword ptr [rsp], 0ffffffffh
mov rcx, 01eh
sar dword ptr [rsp], cl
jc pass2
int 3
pass2:
pop rcx
-------------

Signed-off-by: Vilen Kamalov <vilen.kamalov@gmail.com>
---
 target/i386/tcg/translate.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 9d9392b009..9048e22868 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -1686,27 +1686,27 @@ static void gen_shift_rm_T1(DisasContext *s, MemOp ot, int op1,
     }
 
     tcg_gen_andi_tl(s->T1, s->T1, mask);
-    tcg_gen_subi_tl(s->tmp0, s->T1, 1);
+    tcg_gen_subi_tl(s->tmp4, s->T1, 1);
 
     if (is_right) {
         if (is_arith) {
             gen_exts(ot, s->T0);
-            tcg_gen_sar_tl(s->tmp0, s->T0, s->tmp0);
+            tcg_gen_sar_tl(s->tmp4, s->T0, s->tmp4);
             tcg_gen_sar_tl(s->T0, s->T0, s->T1);
         } else {
             gen_extu(ot, s->T0);
-            tcg_gen_shr_tl(s->tmp0, s->T0, s->tmp0);
+            tcg_gen_shr_tl(s->tmp4, s->T0, s->tmp4);
             tcg_gen_shr_tl(s->T0, s->T0, s->T1);
         }
     } else {
-        tcg_gen_shl_tl(s->tmp0, s->T0, s->tmp0);
+        tcg_gen_shl_tl(s->tmp4, s->T0, s->tmp4);
         tcg_gen_shl_tl(s->T0, s->T0, s->T1);
     }
 
     /* store */
     gen_op_st_rm_T0_A0(s, ot, op1);
 
-    gen_shift_flags(s, ot, s->T0, s->tmp0, s->T1, is_right);
+    gen_shift_flags(s, ot, s->T0, s->tmp4, s->T1, is_right);
 }
 
 static void gen_shift_rm_im(DisasContext *s, MemOp ot, int op1, int op2,
-- 
2.34.7