Commit 2d826cdc authored by Richard Henderson's avatar Richard Henderson
Browse files

target/alpha: Use goto_tb for fallthru between TBs 



Signed-off-by: default avatarRichard Henderson <rth@twiddle.net>
parent bec5e2b9

target/alpha/translate.c

+12 −2
Original line number Diff line number Diff line
@@ -89,6 +89,9 @@ typedef enum { 
       updated the PC for the next instruction to be executed.  */

    EXIT_PC_STALE,



    /* We are exiting the TB due to page crossing or space constraints.  */

    EXIT_FALLTHRU,



    /* We are ending the TB with a noreturn function call, e.g. longjmp.

       No following code will be executed.  */

    EXIT_NORETURN,
@@ -2984,7 +2987,7 @@ void gen_intermediate_code(CPUAlphaState *env, struct TranslationBlock *tb) 
                || num_insns >= max_insns

                || singlestep

                || ctx.singlestep_enabled)) {

            ret = EXIT_PC_STALE;

            ret = EXIT_FALLTHRU;

        }

    } while (ret == NO_EXIT);
@@ -2996,6 +2999,13 @@ void gen_intermediate_code(CPUAlphaState *env, struct TranslationBlock *tb) 
    case EXIT_GOTO_TB:

    case EXIT_NORETURN:

        break;

    case EXIT_FALLTHRU:

        if (use_goto_tb(&ctx, ctx.pc)) {

            tcg_gen_goto_tb(0);

            tcg_gen_movi_i64(cpu_pc, ctx.pc);

            tcg_gen_exit_tb((uintptr_t)ctx.tb);

        }

        /* FALLTHRU */

    case EXIT_PC_STALE:

        tcg_gen_movi_i64(cpu_pc, ctx.pc);

        /* FALLTHRU */
@@ -3007,7 +3017,7 @@ void gen_intermediate_code(CPUAlphaState *env, struct TranslationBlock *tb) 
        }

        break;

    default:

        abort();

        g_assert_not_reached();

    }



    gen_tb_end(tb, num_insns);