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tcg: remove addr argument from lookup_tb_ptr

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It is unlikely that we will ever want to call this helper passing
an argument other than the current PC. So just remove the argument,
and use the pc we already get from cpu_get_tb_cpu_state.

This change paves the way to having a common "tb_lookup" function.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Emilio G. Cota 2017-07-11 17:06:48 -04:00 • committed by Richard Henderson
parent d453ec7825
commit 7f11636dbe
12 changed files with 32 additions and 42 deletions
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4
target/arm/translate-a64.c
View file

@ -379,7 +379,7 @@ static inline void gen_goto_tb(DisasContext *s, int n, uint64_t dest)
} else if (s->base.singlestep_enabled) {
gen_exception_internal(EXCP_DEBUG);
} else {
tcg_gen_lookup_and_goto_ptr(cpu_pc);
tcg_gen_lookup_and_goto_ptr();
s->base.is_jmp = DISAS_NORETURN;
}
}
@ -11363,7 +11363,7 @@ static void aarch64_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
gen_a64_set_pc_im(dc->pc);
/* fall through */
case DISAS_JUMP:
tcg_gen_lookup_and_goto_ptr(cpu_pc);
tcg_gen_lookup_and_goto_ptr();
break;
case DISAS_EXIT:
tcg_gen_exit_tb(0);

5
target/arm/translate.c
View file

@ -4173,10 +4173,7 @@ static inline bool use_goto_tb(DisasContext *s, target_ulong dest)
static void gen_goto_ptr(void)
{
TCGv addr = tcg_temp_new();
tcg_gen_extu_i32_tl(addr, cpu_R[15]);
tcg_gen_lookup_and_goto_ptr(addr);
tcg_temp_free(addr);
tcg_gen_lookup_and_goto_ptr();
}
/* This will end the TB but doesn't guarantee we'll return to