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target/microblaze: Use tcg_gen_lookup_and_goto_ptr 

Normal indirect jumps, or page-crossing direct jumps, can use
tcg_gen_lookup_and_goto_ptr to avoid returning to the main loop
simply to find an existing TB for the next pc.

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-08-31 10:42:04 -07:00
parent 3c745866ed
commit 4059bd90eb
1 changed files with 2 additions and 2 deletions
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4
target/microblaze/translate.c
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@ -147,7 +147,7 @@ static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
tcg_gen_exit_tb(dc->base.tb, n); tcg_gen_exit_tb(dc->base.tb, n);
} else { } else {
tcg_gen_movi_i32(cpu_pc, dest); tcg_gen_movi_i32(cpu_pc, dest);
tcg_gen_exit_tb(NULL, 0); tcg_gen_lookup_and_goto_ptr();
} }
dc->base.is_jmp = DISAS_NORETURN; dc->base.is_jmp = DISAS_NORETURN;
} }
@ -1803,7 +1803,7 @@ static void mb_tr_tb_stop(DisasContextBase *dcb, CPUState *cs)
if (unlikely(cs->singlestep_enabled)) { if (unlikely(cs->singlestep_enabled)) {
gen_raise_exception(dc, EXCP_DEBUG); gen_raise_exception(dc, EXCP_DEBUG);
} else { } else {
tcg_gen_exit_tb(NULL, 0); tcg_gen_lookup_and_goto_ptr();
} }
return; return;