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[PATCH 6/7] target/microblaze: Use tcg_gen_lookup_and_goto_ptr
From: |
Richard Henderson |
Subject: |
[PATCH 6/7] target/microblaze: Use tcg_gen_lookup_and_goto_ptr |
Date: |
Wed, 2 Sep 2020 09:35:58 -0700 |
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>
---
target/microblaze/translate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index a94f3e340e..4416361d08 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -147,7 +147,7 @@ static void gen_goto_tb(DisasContext *dc, int n,
target_ulong dest)
tcg_gen_exit_tb(dc->base.tb, n);
} else {
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;
}
@@ -1803,7 +1803,7 @@ static void mb_tr_tb_stop(DisasContextBase *dcb, CPUState
*cs)
if (unlikely(cs->singlestep_enabled)) {
gen_raise_exception(dc, EXCP_DEBUG);
} else {
- tcg_gen_exit_tb(NULL, 0);
+ tcg_gen_lookup_and_goto_ptr();
}
return;
--
2.25.1
- [PATCH 0/7] target/microblaze improvements, Richard Henderson, 2020/09/02
- [PATCH 1/7] target/microblaze: Rename DISAS_UPDATE to DISAS_EXIT, Richard Henderson, 2020/09/02
- [PATCH 2/7] target/microblaze: Introduce DISAS_EXIT_NEXT, DISAS_EXIT_JUMP, Richard Henderson, 2020/09/02
- [PATCH 4/7] target/microblaze: Handle DISAS_EXIT_NEXT in delay slot, Richard Henderson, 2020/09/02
- [PATCH 3/7] target/microblaze: Replace cpustate_changed with DISAS_EXIT_NEXT, Richard Henderson, 2020/09/02
- [PATCH 6/7] target/microblaze: Use tcg_gen_lookup_and_goto_ptr,
Richard Henderson <=
- [PATCH 7/7] target/microblaze: Diagnose invalid insns in delay slots, Richard Henderson, 2020/09/02
- [PATCH 5/7] target/microblaze: Force rtid, rted, rtbd to exit, Richard Henderson, 2020/09/02