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[97.113.189.189]) by smtp.gmail.com with ESMTPSA id t127sm9687251pfb.106.2019.04.30.22.06.15 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Apr 2019 22:06:15 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Tue, 30 Apr 2019 22:05:33 -0700 Message-Id: <20190501050536.15580-27-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190501050536.15580-1-richard.henderson@linaro.org> References: <20190501050536.15580-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::641 Subject: [Qemu-devel] [PATCH v2 26/29] target/ppc: Use tcg_gen_abs_tl X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Gibson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Cc: David Gibson Signed-off-by: Richard Henderson --- target/ppc/translate.c | 68 +++++++++++++++--------------------------- 1 file changed, 24 insertions(+), 44 deletions(-) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 8d08625c33..b5217f632f 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -5075,40 +5075,26 @@ static void gen_ecowx(DisasContext *ctx) /* abs - abs. */ static void gen_abs(DisasContext *ctx) { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_GE, cpu_gpr[rA(ctx->opcode)], 0, l1); - tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - tcg_gen_br(l2); - gen_set_label(l1); - tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - gen_set_label(l2); + TCGv d = cpu_gpr[rD(ctx->opcode)]; + TCGv a = cpu_gpr[rA(ctx->opcode)]; + + tcg_gen_abs_tl(d, a); if (unlikely(Rc(ctx->opcode) != 0)) { - gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]); + gen_set_Rc0(ctx, d); } } /* abso - abso. */ static void gen_abso(DisasContext *ctx) { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - TCGLabel *l3 = gen_new_label(); - /* Start with XER OV disabled, the most likely case */ - tcg_gen_movi_tl(cpu_ov, 0); - tcg_gen_brcondi_tl(TCG_COND_GE, cpu_gpr[rA(ctx->opcode)], 0, l2); - tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[rA(ctx->opcode)], 0x80000000, l1); - tcg_gen_movi_tl(cpu_ov, 1); - tcg_gen_movi_tl(cpu_so, 1); - tcg_gen_br(l2); - gen_set_label(l1); - tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - tcg_gen_br(l3); - gen_set_label(l2); - tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - gen_set_label(l3); + TCGv d = cpu_gpr[rD(ctx->opcode)]; + TCGv a = cpu_gpr[rA(ctx->opcode)]; + + tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_ov, a, 0x80000000); + tcg_gen_abs_tl(d, a); + tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); if (unlikely(Rc(ctx->opcode) != 0)) { - gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]); + gen_set_Rc0(ctx, d); } } @@ -5344,34 +5330,28 @@ static void gen_mulo(DisasContext *ctx) /* nabs - nabs. */ static void gen_nabs(DisasContext *ctx) { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_GT, cpu_gpr[rA(ctx->opcode)], 0, l1); - tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - tcg_gen_br(l2); - gen_set_label(l1); - tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - gen_set_label(l2); + TCGv d = cpu_gpr[rD(ctx->opcode)]; + TCGv a = cpu_gpr[rA(ctx->opcode)]; + + tcg_gen_abs_tl(d, a); + tcg_gen_neg_tl(d, d); if (unlikely(Rc(ctx->opcode) != 0)) { - gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]); + gen_set_Rc0(ctx, d); } } /* nabso - nabso. */ static void gen_nabso(DisasContext *ctx) { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_GT, cpu_gpr[rA(ctx->opcode)], 0, l1); - tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - tcg_gen_br(l2); - gen_set_label(l1); - tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]); - gen_set_label(l2); + TCGv d = cpu_gpr[rD(ctx->opcode)]; + TCGv a = cpu_gpr[rA(ctx->opcode)]; + + tcg_gen_abs_tl(d, a); + tcg_gen_neg_tl(d, d); /* nabs never overflows */ tcg_gen_movi_tl(cpu_ov, 0); if (unlikely(Rc(ctx->opcode) != 0)) { - gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]); + gen_set_Rc0(ctx, d); } }