target/i386: [tcg] Port to insn_start

Incrementally paves the way towards using the generic instruction translation
loop.

Backports commit 9d75f52b34053066b8e8fc37610d5f300d67538b from qemu
This commit is contained in:
Lluís Vilanova 2018-03-04 17:15:29 -05:00 committed by Lioncash
parent 8896a2887e
commit 1f0f1fb302
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@ -9225,6 +9225,14 @@ static int i386_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu,
return max_insns;
}
static void i386_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
TCGContext *tcg_ctx = cpu->uc->tcg_ctx;
tcg_gen_insn_start(tcg_ctx, dc->base.pc_next, dc->cc_op);
}
/* generate intermediate code for basic block 'tb'. */
void gen_intermediate_code(CPUState *cs, TranslationBlock *tb)
{
@ -9275,7 +9283,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb)
gen_tb_start(tcg_ctx, tb);
for(;;) {
tcg_gen_insn_start(tcg_ctx, dc->base.pc_next, dc->cc_op);
i386_tr_insn_start(&dc->base, cs);
num_insns++;
/* If RF is set, suppress an internally generated breakpoint. */