target/i386: Create gen_update_eip_next

Sync EIP before exiting a translation block.
Replace all gen_jmp_im that use s->pc.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221001140935.465607-7-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 25 insertions, 20 deletions

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 85253e1e17..4c1548da8e 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -521,6 +521,11 @@ static void gen_update_eip_cur(DisasContext *s)
     gen_jmp_im(s, s->base.pc_next - s->cs_base);
 }
 
+static void gen_update_eip_next(DisasContext *s)
+{
+    gen_jmp_im(s, s->pc - s->cs_base);
+}
+
 /* Compute SEG:REG into A0.  SEG is selected from the override segment
    (OVR_SEG) and the default segment (DEF_SEG).  OVR_SEG may be -1 to
    indicate no override.  */
@@ -5719,7 +5724,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         gen_pop_update(s, ot);
         /* Note that reg == R_SS in gen_movl_seg_T0 always sets is_jmp.  */
         if (s->base.is_jmp) {
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             if (reg == R_SS) {
                 s->flags &= ~HF_TF_MASK;
                 gen_eob_inhibit_irq(s, true);
@@ -5734,7 +5739,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         gen_movl_seg_T0(s, (b >> 3) & 7);
         gen_pop_update(s, ot);
         if (s->base.is_jmp) {
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
         }
         break;
@@ -5785,7 +5790,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         gen_movl_seg_T0(s, reg);
         /* Note that reg == R_SS in gen_movl_seg_T0 always sets is_jmp.  */
         if (s->base.is_jmp) {
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             if (reg == R_SS) {
                 s->flags &= ~HF_TF_MASK;
                 gen_eob_inhibit_irq(s, true);
@@ -5983,7 +5988,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         /* then put the data */
         gen_op_mov_reg_v(s, ot, reg, s->T1);
         if (s->base.is_jmp) {
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
         }
         break;
@@ -7039,7 +7044,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             gen_pop_update(s, ot);
             set_cc_op(s, CC_OP_EFLAGS);
             /* abort translation because TF/AC flag may change */
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
         }
         break;
@@ -7375,7 +7380,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         if (check_iopl(s)) {
             gen_helper_sti(cpu_env);
             /* interruptions are enabled only the first insn after sti */
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob_inhibit_irq(s, true);
         }
         break;
@@ -7451,7 +7456,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             }
 
             gen_set_label(l3);
-            gen_jmp_im(s, next_eip);
+            gen_update_eip_next(s);
             tcg_gen_br(l2);
 
             gen_set_label(l1);
@@ -7469,7 +7474,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
                 gen_helper_rdmsr(cpu_env);
             } else {
                 gen_helper_wrmsr(cpu_env);
-                gen_jmp_im(s, s->pc - s->cs_base);
+                gen_update_eip_next(s);
                 gen_eob(s);
             }
         }
@@ -7669,7 +7674,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
                 goto illegal_op;
             }
             gen_helper_clac(cpu_env);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -7679,7 +7684,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
                 goto illegal_op;
             }
             gen_helper_stac(cpu_env);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -7724,7 +7729,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             tcg_gen_trunc_tl_i32(s->tmp2_i32, cpu_regs[R_ECX]);
             gen_helper_xsetbv(cpu_env, s->tmp2_i32, s->tmp1_i64);
             /* End TB because translation flags may change.  */
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -7786,7 +7791,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             }
             gen_update_cc_op(s);
             gen_helper_stgi(cpu_env);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -7825,7 +7830,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
                 tcg_gen_ext32u_tl(s->A0, cpu_regs[R_EAX]);
             }
             gen_helper_flush_page(cpu_env, s->A0);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -7909,7 +7914,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             tcg_gen_andi_tl(s->T1, s->T1, ~0xe);
             tcg_gen_or_tl(s->T0, s->T0, s->T1);
             gen_helper_write_crN(cpu_env, tcg_constant_i32(0), s->T0);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -7920,7 +7925,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             gen_svm_check_intercept(s, SVM_EXIT_INVLPG);
             gen_lea_modrm(env, s, modrm);
             gen_helper_flush_page(cpu_env, s->A0);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -8320,7 +8325,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             gen_svm_check_intercept(s, SVM_EXIT_WRITE_CR0 + reg);
             gen_op_mov_v_reg(s, ot, s->T0, rm);
             gen_helper_write_crN(cpu_env, tcg_constant_i32(reg), s->T0);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
         } else {
             gen_svm_check_intercept(s, SVM_EXIT_READ_CR0 + reg);
@@ -8355,7 +8360,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
                 gen_op_mov_v_reg(s, ot, s->T0, rm);
                 tcg_gen_movi_i32(s->tmp2_i32, reg);
                 gen_helper_set_dr(cpu_env, s->tmp2_i32, s->T0);
-                gen_jmp_im(s, s->pc - s->cs_base);
+                gen_update_eip_next(s);
                 gen_eob(s);
             } else {
                 gen_svm_check_intercept(s, SVM_EXIT_READ_DR0 + reg);
@@ -8370,7 +8375,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             gen_svm_check_intercept(s, SVM_EXIT_WRITE_CR0);
             gen_helper_clts(cpu_env);
             /* abort block because static cpu state changed */
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
         }
         break;
@@ -8468,7 +8473,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             /* XRSTOR is how MPX is enabled, which changes how
                we translate.  Thus we need to end the TB.  */
             gen_update_cc_op(s);
-            gen_jmp_im(s, s->pc - s->cs_base);
+            gen_update_eip_next(s);
             gen_eob(s);
             break;
 
@@ -8602,7 +8607,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         g_assert_not_reached();
 #else
         gen_update_cc_op(s);
-        gen_jmp_im(s, s->pc - s->cs_base);
+        gen_update_eip_next(s);
         gen_helper_rsm(cpu_env);
 #endif /* CONFIG_USER_ONLY */
         gen_eob(s);