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Wed, 19 Oct 2022 22:37:42 +0000 Received: by hu-devc-lv-u18-c.qualcomm.com (Postfix, from userid 47164) id BBB5F5000B0; Wed, 19 Oct 2022 15:37:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=qcppdkim1; bh=xW+A+3m+1APH6vwEWz7CXLnU68XQG4Yabg1bWghn+h0=; b=eSvabjm/Bp6ymq+lom1ftq+UloPnSH8GiMmXst52aP+yfH2Zci9TOwraaHgq4C+WeKpV PxmczshQu/fCBdG4pFLcv+b/sJFMvbdYAO8hjGogEKBo5N5yo1j+wTNKKL94JDGoZqxi r+YLDDSTpMB4tItIirO/4qdtC4VMM7RzkBKuuOz7ee5cl/oX/0DlkrRfarOXLghUxpeq vDPxu3uo83APjN6hkSz+sT6DSR4/3uncvZPSkGgPVdzKjO8Bx6n9ddjOMTwpCLjwLTbS 7jnkMVXbaFMmEfKYF61rRHo+D+q1sA+twNy0dgyYVFVRUnCJb/w/niCY/Afro5dWMTHR tA== From: Taylor Simpson To: qemu-devel@nongnu.org Cc: tsimpson@quicinc.com, richard.henderson@linaro.org, philmd@linaro.org, ale@rev.ng, anjo@rev.ng, bcain@quicinc.com, quic_mathbern@quicinc.com Subject: [PATCH 4/8] Hexagon (target/hexagon) Add overrides for direct call instructions Date: Wed, 19 Oct 2022 15:37:35 -0700 Message-Id: <20221019223739.3868-5-tsimpson@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221019223739.3868-1-tsimpson@quicinc.com> References: <20221019223739.3868-1-tsimpson@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.168.131; envelope-from=tsimpson@qualcomm.com; helo=mx0a-0031df01.pphosted.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_LOW=-0.7, 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: 2.1.29 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 @quicinc.com) X-ZM-MESSAGEID: 1666219392639100001 Add overrides for J2_call J2_callt J2_callf Signed-off-by: Taylor Simpson --- target/hexagon/gen_tcg.h | 8 ++++++ target/hexagon/genptr.c | 59 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 67 insertions(+) diff --git a/target/hexagon/gen_tcg.h b/target/hexagon/gen_tcg.h index e6fc7d97d2..ad149adbe1 100644 --- a/target/hexagon/gen_tcg.h +++ b/target/hexagon/gen_tcg.h @@ -612,6 +612,14 @@ tcg_temp_free(tmp); \ } while (0) =20 +#define fGEN_TCG_J2_call(SHORTCODE) \ + gen_call(ctx, pkt, riV) + +#define fGEN_TCG_J2_callt(SHORTCODE) \ + gen_cond_call(ctx, pkt, PuV, true, riV) +#define fGEN_TCG_J2_callf(SHORTCODE) \ + gen_cond_call(ctx, pkt, PuV, false, riV) + #define fGEN_TCG_J2_pause(SHORTCODE) \ do { \ uiV =3D uiV; \ diff --git a/target/hexagon/genptr.c b/target/hexagon/genptr.c index 806d0974ff..4b43b3f5c8 100644 --- a/target/hexagon/genptr.c +++ b/target/hexagon/genptr.c @@ -456,6 +456,65 @@ static TCGv gen_8bitsof(TCGv result, TCGv value) return result; } =20 +static void gen_write_new_pc_pcrel(DisasContext *ctx, Packet *pkt, + int pc_off, TCGv pred) +{ + target_ulong dest =3D pkt->pc + pc_off; + if (pkt->pkt_has_multi_cof) { + TCGLabel *pred_false =3D NULL; + if (pred !=3D NULL) { + pred_false =3D gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_EQ, pred, 0, pred_false); + } + /* If there are multiple branches in a packet, ignore the second o= ne */ + TCGLabel *skip =3D gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_NE, hex_branch_taken, 0, skip); + tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], dest); + tcg_gen_movi_tl(hex_branch_taken, 1); + gen_set_label(skip); + if (pred !=3D NULL) { + gen_set_label(pred_false); + } + } else { + TCGLabel *pred_false =3D NULL; + if (pred !=3D NULL) { + pred_false =3D gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_EQ, pred, 0, pred_false); + } + tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], dest); + if (pred !=3D NULL) { + gen_set_label(pred_false); + } + } +} + +static void gen_call(DisasContext *ctx, Packet *pkt, int pc_off) +{ + TCGv next_PC =3D + tcg_constant_tl(pkt->pc + pkt->encod_pkt_size_in_bytes); + gen_log_reg_write(HEX_REG_LR, next_PC); + gen_write_new_pc_pcrel(ctx, pkt, pc_off, NULL); +} + +static void gen_cond_call(DisasContext *ctx, Packet *pkt, + TCGv pred, bool sense, int pc_off) +{ + TCGv next_PC; + TCGv lsb =3D tcg_temp_local_new(); + TCGLabel *skip =3D gen_new_label(); + tcg_gen_andi_tl(lsb, pred, 1); + if (!sense) { + tcg_gen_xori_tl(lsb, lsb, 1); + } + gen_write_new_pc_pcrel(ctx, pkt, pc_off, lsb); + tcg_gen_brcondi_tl(TCG_COND_EQ, lsb, 0, skip); + tcg_temp_free(lsb); + next_PC =3D + tcg_constant_tl(pkt->pc + pkt->encod_pkt_size_in_bytes); + gen_log_reg_write(HEX_REG_LR, next_PC); + gen_set_label(skip); +} + static intptr_t vreg_src_off(DisasContext *ctx, int num) { intptr_t offset =3D offsetof(CPUHexagonState, VRegs[num]); --=20 2.17.1