target/tricore: Introduce DISAS_TARGET_EXIT

this replaces all calls to tcg_gen_exit_tb() and moves them to
tricore_tb_stop().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230621142302.1648383-3-kbastian@mail.uni-paderborn.de>

target/tricore/translate.c

@@ -37,6 +37,7 @@
 #include "exec/helper-info.c.inc"
 #undef  HELPER_H
 
+#define DISAS_EXIT        DISAS_TARGET_0
 
 /*
  * TCG registers
@@ -2836,6 +2837,7 @@ static void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
         gen_save_pc(dest);
         tcg_gen_lookup_and_goto_ptr();
     }
+    ctx->base.is_jmp = DISAS_NORETURN;
 }
 
 static void generate_trap(DisasContext *ctx, int class, int tin)
@@ -2896,8 +2898,7 @@ static void gen_fret(DisasContext *ctx)
     tcg_gen_qemu_ld_tl(cpu_gpr_a[11], cpu_gpr_a[10], ctx->mem_idx, MO_LESL);
     tcg_gen_addi_tl(cpu_gpr_a[10], cpu_gpr_a[10], 4);
     tcg_gen_mov_tl(cpu_PC, temp);
-    tcg_gen_exit_tb(NULL, 0);
-    ctx->base.is_jmp = DISAS_NORETURN;
+    ctx->base.is_jmp = DISAS_EXIT;
 }
 
 static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1,
@@ -2996,12 +2997,12 @@ static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1,
 /* SR-format jumps */
     case OPC1_16_SR_JI:
         tcg_gen_andi_tl(cpu_PC, cpu_gpr_a[r1], 0xfffffffe);
-        tcg_gen_exit_tb(NULL, 0);
+        ctx->base.is_jmp = DISAS_EXIT;
         break;
     case OPC2_32_SYS_RET:
     case OPC2_16_SR_RET:
         gen_helper_ret(cpu_env);
-        tcg_gen_exit_tb(NULL, 0);
+        ctx->base.is_jmp = DISAS_EXIT;
         break;
 /* B-format */
     case OPC1_32_B_CALLA:
@@ -3153,7 +3154,6 @@ static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1,
     default:
         generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);
     }
-    ctx->base.is_jmp = DISAS_NORETURN;
 }
 
 
@@ -3495,8 +3495,7 @@ static void decode_sr_system(DisasContext *ctx)
         break;
     case OPC2_16_SR_RFE:
         gen_helper_rfe(cpu_env);
-        tcg_gen_exit_tb(NULL, 0);
-        ctx->base.is_jmp = DISAS_NORETURN;
+        ctx->base.is_jmp = DISAS_EXIT;
         break;
     case OPC2_16_SR_DEBUG:
         /* raise EXCP_DEBUG */
@@ -6078,8 +6077,7 @@ static void decode_rr_idirect(DisasContext *ctx)
     default:
         generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);
     }
-    tcg_gen_exit_tb(NULL, 0);
-    ctx->base.is_jmp = DISAS_NORETURN;
+    ctx->base.is_jmp = DISAS_EXIT;
 }
 
 static void decode_rr_divide(DisasContext *ctx)
@@ -7915,8 +7913,7 @@ static void decode_sys_interrupts(DisasContext *ctx)
         break;
     case OPC2_32_SYS_RFE:
         gen_helper_rfe(cpu_env);
-        tcg_gen_exit_tb(NULL, 0);
-        ctx->base.is_jmp = DISAS_NORETURN;
+        ctx->base.is_jmp = DISAS_EXIT;
         break;
     case OPC2_32_SYS_RFM:
         if ((ctx->hflags & TRICORE_HFLAG_KUU) == TRICORE_HFLAG_SM) {
@@ -7928,8 +7925,7 @@ static void decode_sys_interrupts(DisasContext *ctx)
             tcg_gen_brcondi_tl(TCG_COND_NE, tmp, 1, l1);
             gen_helper_rfm(cpu_env);
             gen_set_label(l1);
-            tcg_gen_exit_tb(NULL, 0);
-            ctx->base.is_jmp = DISAS_NORETURN;
+            ctx->base.is_jmp = DISAS_EXIT;
         } else {
             /* generate privilege trap */
         }
@@ -8391,6 +8387,9 @@ static void tricore_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
     case DISAS_TOO_MANY:
         gen_goto_tb(ctx, 0, ctx->base.pc_next);
         break;
+    case DISAS_EXIT:
+        tcg_gen_exit_tb(NULL, 0);
+        break;
     case DISAS_NORETURN:
         break;
     default: