From 85e6cda0082c6e8107b9141bfcfb041f7f2a738e Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 21 Mar 2024 18:40:54 -1000 Subject: [PATCH] target/hppa: Add install_iaq_entries Instead of two separate cpu_iaoq_entry calls, use one call to update both IAQ_Front and IAQ_Back. Simplify with an argument combination that automatically handles a simple increment from Front to Back. Reviewed-by: Helge Deller Signed-off-by: Richard Henderson --- target/hppa/translate.c | 64 +++++++++++++++++++++-------------------- 1 file changed, 33 insertions(+), 31 deletions(-) diff --git a/target/hppa/translate.c b/target/hppa/translate.c index d272be0e6e..08d5e2a4bc 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -617,6 +617,23 @@ static void copy_iaoq_entry(DisasContext *ctx, TCGv_i64 dest, } } +static void install_iaq_entries(DisasContext *ctx, uint64_t bi, TCGv_i64 bv, + uint64_t ni, TCGv_i64 nv) +{ + copy_iaoq_entry(ctx, cpu_iaoq_f, bi, bv); + + /* Allow ni variable, with nv null, to indicate a trivial advance. */ + if (ni != -1 || nv) { + copy_iaoq_entry(ctx, cpu_iaoq_b, ni, nv); + } else if (bi != -1) { + copy_iaoq_entry(ctx, cpu_iaoq_b, bi + 4, NULL); + } else { + tcg_gen_addi_i64(cpu_iaoq_b, cpu_iaoq_f, 4); + tcg_gen_andi_i64(cpu_iaoq_b, cpu_iaoq_b, + gva_offset_mask(ctx->tb_flags)); + } +} + static inline uint64_t iaoq_dest(DisasContext *ctx, int64_t disp) { return ctx->iaoq_f + disp + 8; @@ -629,8 +646,7 @@ static void gen_excp_1(int exception) static void gen_excp(DisasContext *ctx, int exception) { - copy_iaoq_entry(ctx, cpu_iaoq_f, ctx->iaoq_f, cpu_iaoq_f); - copy_iaoq_entry(ctx, cpu_iaoq_b, ctx->iaoq_b, cpu_iaoq_b); + install_iaq_entries(ctx, ctx->iaoq_f, cpu_iaoq_f, ctx->iaoq_b, cpu_iaoq_b); nullify_save(ctx); gen_excp_1(exception); ctx->base.is_jmp = DISAS_NORETURN; @@ -684,12 +700,10 @@ static void gen_goto_tb(DisasContext *ctx, int which, { if (use_goto_tb(ctx, b, n)) { tcg_gen_goto_tb(which); - copy_iaoq_entry(ctx, cpu_iaoq_f, b, NULL); - copy_iaoq_entry(ctx, cpu_iaoq_b, n, NULL); + install_iaq_entries(ctx, b, NULL, n, NULL); tcg_gen_exit_tb(ctx->base.tb, which); } else { - copy_iaoq_entry(ctx, cpu_iaoq_f, b, cpu_iaoq_b); - copy_iaoq_entry(ctx, cpu_iaoq_b, n, ctx->iaoq_n_var); + install_iaq_entries(ctx, b, cpu_iaoq_b, n, ctx->iaoq_n_var); tcg_gen_lookup_and_goto_ptr(); } } @@ -1883,9 +1897,7 @@ static bool do_ibranch(DisasContext *ctx, TCGv_i64 dest, } if (is_n) { if (use_nullify_skip(ctx)) { - copy_iaoq_entry(ctx, cpu_iaoq_f, -1, next); - tcg_gen_addi_i64(next, next, 4); - copy_iaoq_entry(ctx, cpu_iaoq_b, -1, next); + install_iaq_entries(ctx, -1, next, -1, NULL); nullify_set(ctx, 0); ctx->base.is_jmp = DISAS_IAQ_N_UPDATED; return true; @@ -1900,14 +1912,10 @@ static bool do_ibranch(DisasContext *ctx, TCGv_i64 dest, nullify_over(ctx); if (is_n && use_nullify_skip(ctx)) { - copy_iaoq_entry(ctx, cpu_iaoq_f, -1, dest); - next = tcg_temp_new_i64(); - tcg_gen_addi_i64(next, dest, 4); - copy_iaoq_entry(ctx, cpu_iaoq_b, -1, next); + install_iaq_entries(ctx, -1, dest, -1, NULL); nullify_set(ctx, 0); } else { - copy_iaoq_entry(ctx, cpu_iaoq_f, ctx->iaoq_b, cpu_iaoq_b); - copy_iaoq_entry(ctx, cpu_iaoq_b, -1, dest); + install_iaq_entries(ctx, ctx->iaoq_b, cpu_iaoq_b, -1, dest); nullify_set(ctx, is_n); } if (link != 0) { @@ -1998,9 +2006,7 @@ static void do_page_zero(DisasContext *ctx) tcg_gen_st_i64(cpu_gr[26], tcg_env, offsetof(CPUHPPAState, cr[27])); tmp = tcg_temp_new_i64(); tcg_gen_ori_i64(tmp, cpu_gr[31], 3); - copy_iaoq_entry(ctx, cpu_iaoq_f, -1, tmp); - tcg_gen_addi_i64(tmp, tmp, 4); - copy_iaoq_entry(ctx, cpu_iaoq_b, -1, tmp); + install_iaq_entries(ctx, -1, tmp, -1, NULL); ctx->base.is_jmp = DISAS_IAQ_N_UPDATED; break; @@ -2744,8 +2750,8 @@ static bool trans_or(DisasContext *ctx, arg_rrr_cf_d *a) nullify_over(ctx); /* Advance the instruction queue. */ - copy_iaoq_entry(ctx, cpu_iaoq_f, ctx->iaoq_b, cpu_iaoq_b); - copy_iaoq_entry(ctx, cpu_iaoq_b, ctx->iaoq_n, ctx->iaoq_n_var); + install_iaq_entries(ctx, ctx->iaoq_b, cpu_iaoq_b, + ctx->iaoq_n, ctx->iaoq_n_var); nullify_set(ctx, 0); /* Tell the qemu main loop to halt until this cpu has work. */ @@ -3898,18 +3904,15 @@ static bool trans_be(DisasContext *ctx, arg_be *a) tcg_gen_mov_i64(cpu_sr[0], cpu_iasq_b); } if (a->n && use_nullify_skip(ctx)) { - copy_iaoq_entry(ctx, cpu_iaoq_f, -1, tmp); - tcg_gen_addi_i64(tmp, tmp, 4); - copy_iaoq_entry(ctx, cpu_iaoq_b, -1, tmp); + install_iaq_entries(ctx, -1, tmp, -1, NULL); tcg_gen_mov_i64(cpu_iasq_f, new_spc); tcg_gen_mov_i64(cpu_iasq_b, cpu_iasq_f); nullify_set(ctx, 0); } else { - copy_iaoq_entry(ctx, cpu_iaoq_f, ctx->iaoq_b, cpu_iaoq_b); + install_iaq_entries(ctx, ctx->iaoq_b, cpu_iaoq_b, -1, tmp); if (ctx->iaoq_b == -1) { tcg_gen_mov_i64(cpu_iasq_f, cpu_iasq_b); } - copy_iaoq_entry(ctx, cpu_iaoq_b, -1, tmp); tcg_gen_mov_i64(cpu_iasq_b, new_spc); nullify_set(ctx, a->n); } @@ -4018,11 +4021,10 @@ static bool trans_bve(DisasContext *ctx, arg_bve *a) nullify_over(ctx); dest = do_ibranch_priv(ctx, load_gpr(ctx, a->b)); - copy_iaoq_entry(ctx, cpu_iaoq_f, ctx->iaoq_b, cpu_iaoq_b); + install_iaq_entries(ctx, ctx->iaoq_b, cpu_iaoq_b, -1, dest); if (ctx->iaoq_b == -1) { tcg_gen_mov_i64(cpu_iasq_f, cpu_iasq_b); } - copy_iaoq_entry(ctx, cpu_iaoq_b, -1, dest); tcg_gen_mov_i64(cpu_iasq_b, space_select(ctx, 0, dest)); if (a->l) { copy_iaoq_entry(ctx, cpu_gr[a->l], ctx->iaoq_n, ctx->iaoq_n_var); @@ -4721,8 +4723,8 @@ static void hppa_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) case DISAS_IAQ_N_STALE: case DISAS_IAQ_N_STALE_EXIT: if (ctx->iaoq_f == -1) { - copy_iaoq_entry(ctx, cpu_iaoq_f, -1, cpu_iaoq_b); - copy_iaoq_entry(ctx, cpu_iaoq_b, ctx->iaoq_n, ctx->iaoq_n_var); + install_iaq_entries(ctx, -1, cpu_iaoq_b, + ctx->iaoq_n, ctx->iaoq_n_var); #ifndef CONFIG_USER_ONLY tcg_gen_mov_i64(cpu_iasq_f, cpu_iasq_b); #endif @@ -4751,8 +4753,8 @@ static void hppa_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs) case DISAS_TOO_MANY: case DISAS_IAQ_N_STALE: case DISAS_IAQ_N_STALE_EXIT: - copy_iaoq_entry(ctx, cpu_iaoq_f, ctx->iaoq_f, cpu_iaoq_f); - copy_iaoq_entry(ctx, cpu_iaoq_b, ctx->iaoq_b, cpu_iaoq_b); + install_iaq_entries(ctx, ctx->iaoq_f, cpu_iaoq_f, + ctx->iaoq_b, cpu_iaoq_b); nullify_save(ctx); /* FALLTHRU */ case DISAS_IAQ_N_UPDATED: