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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::52f; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1626194671368100001 Content-Type: text/plain; charset="utf-8" The a0_is_n flag is redundant with comparing a0 to cpu_psw_n. The a1_is_0 flag can be removed by initializing a1 to $0, which also means that cond_prep can be removed entirely. Signed-off-by: Richard Henderson --- target/hppa/translate.c | 43 +++++++++-------------------------------- 1 file changed, 9 insertions(+), 34 deletions(-) diff --git a/target/hppa/translate.c b/target/hppa/translate.c index fa668072d0..2552747138 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -252,8 +252,6 @@ typedef struct DisasCond { TCGCond c; TCGv_reg a0, a1; - bool a0_is_n; - bool a1_is_0; } DisasCond; =20 typedef struct DisasContext { @@ -448,9 +446,7 @@ static DisasCond cond_make_n(void) return (DisasCond){ .c =3D TCG_COND_NE, .a0 =3D cpu_psw_n, - .a0_is_n =3D true, - .a1 =3D NULL, - .a1_is_0 =3D true + .a1 =3D tcg_constant_reg(0) }; } =20 @@ -458,7 +454,7 @@ static DisasCond cond_make_0_tmp(TCGCond c, TCGv_reg a0) { assert (c !=3D TCG_COND_NEVER && c !=3D TCG_COND_ALWAYS); return (DisasCond){ - .c =3D c, .a0 =3D a0, .a1_is_0 =3D true + .c =3D c, .a0 =3D a0, .a1 =3D tcg_constant_reg(0) }; } =20 @@ -482,26 +478,14 @@ static DisasCond cond_make(TCGCond c, TCGv_reg a0, TC= Gv_reg a1) return r; } =20 -static void cond_prep(DisasCond *cond) -{ - if (cond->a1_is_0) { - cond->a1_is_0 =3D false; - cond->a1 =3D tcg_const_reg(0); - } -} - static void cond_free(DisasCond *cond) { switch (cond->c) { default: - if (!cond->a0_is_n) { + if (cond->a0 !=3D cpu_psw_n) { tcg_temp_free(cond->a0); } - if (!cond->a1_is_0) { - tcg_temp_free(cond->a1); - } - cond->a0_is_n =3D false; - cond->a1_is_0 =3D false; + tcg_temp_free(cond->a1); cond->a0 =3D NULL; cond->a1 =3D NULL; /* fallthru */ @@ -559,9 +543,8 @@ static TCGv_reg dest_gpr(DisasContext *ctx, unsigned re= g) static void save_or_nullify(DisasContext *ctx, TCGv_reg dest, TCGv_reg t) { if (ctx->null_cond.c !=3D TCG_COND_NEVER) { - cond_prep(&ctx->null_cond); tcg_gen_movcond_reg(ctx->null_cond.c, dest, ctx->null_cond.a0, - ctx->null_cond.a1, dest, t); + ctx->null_cond.a1, dest, t); } else { tcg_gen_mov_reg(dest, t); } @@ -668,11 +651,9 @@ static void nullify_over(DisasContext *ctx) assert(ctx->null_cond.c !=3D TCG_COND_ALWAYS); =20 ctx->null_lab =3D gen_new_label(); - cond_prep(&ctx->null_cond); =20 /* If we're using PSW[N], copy it to a temp because... */ - if (ctx->null_cond.a0_is_n) { - ctx->null_cond.a0_is_n =3D false; + if (ctx->null_cond.a0 =3D=3D cpu_psw_n) { ctx->null_cond.a0 =3D tcg_temp_new(); tcg_gen_mov_reg(ctx->null_cond.a0, cpu_psw_n); } @@ -685,7 +666,7 @@ static void nullify_over(DisasContext *ctx) } =20 tcg_gen_brcond_reg(ctx->null_cond.c, ctx->null_cond.a0, - ctx->null_cond.a1, ctx->null_lab); + ctx->null_cond.a1, ctx->null_lab); cond_free(&ctx->null_cond); } } @@ -699,10 +680,9 @@ static void nullify_save(DisasContext *ctx) } return; } - if (!ctx->null_cond.a0_is_n) { - cond_prep(&ctx->null_cond); + if (ctx->null_cond.a0 !=3D cpu_psw_n) { tcg_gen_setcond_reg(ctx->null_cond.c, cpu_psw_n, - ctx->null_cond.a0, ctx->null_cond.a1); + ctx->null_cond.a0, ctx->null_cond.a1); ctx->psw_n_nonzero =3D true; } cond_free(&ctx->null_cond); @@ -1178,7 +1158,6 @@ static void do_add(DisasContext *ctx, unsigned rt, TC= Gv_reg in1, /* Emit any conditional trap before any writeback. */ cond =3D do_cond(cf, dest, cb_msb, sv); if (is_tc) { - cond_prep(&cond); tmp =3D tcg_temp_new(); tcg_gen_setcond_reg(cond.c, tmp, cond.a0, cond.a1); gen_helper_tcond(cpu_env, tmp); @@ -1273,7 +1252,6 @@ static void do_sub(DisasContext *ctx, unsigned rt, TC= Gv_reg in1, =20 /* Emit any conditional trap before any writeback. */ if (is_tc) { - cond_prep(&cond); tmp =3D tcg_temp_new(); tcg_gen_setcond_reg(cond.c, tmp, cond.a0, cond.a1); gen_helper_tcond(cpu_env, tmp); @@ -1399,7 +1377,6 @@ static void do_unit(DisasContext *ctx, unsigned rt, T= CGv_reg in1, =20 if (is_tc) { TCGv_reg tmp =3D tcg_temp_new(); - cond_prep(&cond); tcg_gen_setcond_reg(cond.c, tmp, cond.a0, cond.a1); gen_helper_tcond(cpu_env, tmp); tcg_temp_free(tmp); @@ -1855,7 +1832,6 @@ static bool do_cbranch(DisasContext *ctx, target_sreg= disp, bool is_n, } =20 taken =3D gen_new_label(); - cond_prep(cond); tcg_gen_brcond_reg(c, cond->a0, cond->a1, taken); cond_free(cond); =20 @@ -1952,7 +1928,6 @@ static bool do_ibranch(DisasContext *ctx, TCGv_reg de= st, tcg_gen_lookup_and_goto_ptr(); return nullify_end(ctx); } else { - cond_prep(&ctx->null_cond); c =3D ctx->null_cond.c; a0 =3D ctx->null_cond.a0; a1 =3D ctx->null_cond.a1; --=20 2.25.1