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NALASPPMTA04.qualcomm.com (PPS) with ESMTP id 2A4JQXt9026091; Fri, 04 Nov 2022 19:26:34 +0000 Received: by hu-devc-lv-u18-c.qualcomm.com (Postfix, from userid 47164) id 0F26F500105; Fri, 4 Nov 2022 12:26:33 -0700 (PDT) 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 v3 08/11] Hexagon (target/hexagon) Add overrides for compound compare and jump Date: Fri, 4 Nov 2022 12:26:28 -0700 Message-Id: <20221104192631.29434-9-tsimpson@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221104192631.29434-1-tsimpson@quicinc.com> References: <20221104192631.29434-1-tsimpson@quicinc.com> MIME-Version: 1.0 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 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autolearn=no 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: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Signed-off-by: Taylor Simpson Acked-by: Richard Henderson --- target/hexagon/gen_tcg.h | 177 +++++++++++++++++++++++++++++++++++++++ target/hexagon/genptr.c | 72 ++++++++++++++++ 2 files changed, 249 insertions(+) diff --git a/target/hexagon/gen_tcg.h b/target/hexagon/gen_tcg.h index fe0a5e9c13..8b311d16e0 100644 --- a/target/hexagon/gen_tcg.h +++ b/target/hexagon/gen_tcg.h @@ -620,6 +620,183 @@ #define fGEN_TCG_J2_callf(SHORTCODE) \ gen_cond_call(ctx, PuV, false, riV) +/* + * Compound compare and jump instructions + * Here is a primer to understand the tag names + * + * Comparison + * cmpeqi compare equal to an immediate + * cmpgti compare greater than an immediate + * cmpgtiu compare greater than an unsigned immediate + * cmpeqn1 compare equal to negative 1 + * cmpgtn1 compare greater than negative 1 + * cmpeq compare equal (two registers) + * cmpgtu compare greater than unsigned (two registers) + * tstbit0 test bit zero + * + * Condition + * tp0 p0 is true p0 = cmp.eq(r0,#5); if (p0.new) jump:nt address + * fp0 p0 is false p0 = cmp.eq(r0,#5); if (!p0.new) jump:nt address + * tp1 p1 is true p1 = cmp.eq(r0,#5); if (p1.new) jump:nt address + * fp1 p1 is false p1 = cmp.eq(r0,#5); if (!p1.new) jump:nt address + * + * Prediction (not modelled in qemu) + * _nt not taken + * _t taken + */ +#define fGEN_TCG_J4_cmpeq_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_EQ, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpeq_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_EQ, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpeq_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_EQ, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpeq_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_EQ, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpeq_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_EQ, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpeq_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_EQ, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpeq_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_EQ, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpeq_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_EQ, false, RsV, RtV, riV) + +#define fGEN_TCG_J4_cmpgt_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GT, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgt_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GT, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgt_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GT, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgt_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GT, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgt_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GT, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgt_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GT, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgt_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GT, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgt_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GT, false, RsV, RtV, riV) + +#define fGEN_TCG_J4_cmpgtu_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GTU, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgtu_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GTU, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgtu_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GTU, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgtu_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 0, TCG_COND_GTU, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgtu_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GTU, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgtu_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GTU, true, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgtu_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GTU, false, RsV, RtV, riV) +#define fGEN_TCG_J4_cmpgtu_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_jmp(ctx, 1, TCG_COND_GTU, false, RsV, RtV, riV) + +#define fGEN_TCG_J4_cmpeqi_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_EQ, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpeqi_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_EQ, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpeqi_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_EQ, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpeqi_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_EQ, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpeqi_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_EQ, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpeqi_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_EQ, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpeqi_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_EQ, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpeqi_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_EQ, false, RsV, UiV, riV) + +#define fGEN_TCG_J4_cmpgti_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GT, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgti_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GT, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgti_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GT, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgti_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GT, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgti_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GT, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgti_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GT, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgti_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GT, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgti_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GT, false, RsV, UiV, riV) + +#define fGEN_TCG_J4_cmpgtui_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GTU, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgtui_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GTU, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgtui_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GTU, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgtui_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 0, TCG_COND_GTU, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgtui_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GTU, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgtui_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GTU, true, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgtui_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GTU, false, RsV, UiV, riV) +#define fGEN_TCG_J4_cmpgtui_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmpi_jmp(ctx, 1, TCG_COND_GTU, false, RsV, UiV, riV) + +#define fGEN_TCG_J4_cmpeqn1_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_EQ, true, RsV, riV) +#define fGEN_TCG_J4_cmpeqn1_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_EQ, true, RsV, riV) +#define fGEN_TCG_J4_cmpeqn1_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_EQ, false, RsV, riV) +#define fGEN_TCG_J4_cmpeqn1_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_EQ, false, RsV, riV) +#define fGEN_TCG_J4_cmpeqn1_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_EQ, true, RsV, riV) +#define fGEN_TCG_J4_cmpeqn1_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_EQ, true, RsV, riV) +#define fGEN_TCG_J4_cmpeqn1_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_EQ, false, RsV, riV) +#define fGEN_TCG_J4_cmpeqn1_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_EQ, false, RsV, riV) + +#define fGEN_TCG_J4_cmpgtn1_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_GT, true, RsV, riV) +#define fGEN_TCG_J4_cmpgtn1_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_GT, true, RsV, riV) +#define fGEN_TCG_J4_cmpgtn1_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_GT, false, RsV, riV) +#define fGEN_TCG_J4_cmpgtn1_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 0, TCG_COND_GT, false, RsV, riV) +#define fGEN_TCG_J4_cmpgtn1_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_GT, true, RsV, riV) +#define fGEN_TCG_J4_cmpgtn1_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_GT, true, RsV, riV) +#define fGEN_TCG_J4_cmpgtn1_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_GT, false, RsV, riV) +#define fGEN_TCG_J4_cmpgtn1_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_cmp_n1_jmp(ctx, 1, TCG_COND_GT, false, RsV, riV) + +#define fGEN_TCG_J4_tstbit0_tp0_jump_nt(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 0, true, RsV, riV) +#define fGEN_TCG_J4_tstbit0_tp0_jump_t(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 0, true, RsV, riV) +#define fGEN_TCG_J4_tstbit0_fp0_jump_nt(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 0, false, RsV, riV) +#define fGEN_TCG_J4_tstbit0_fp0_jump_t(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 0, false, RsV, riV) +#define fGEN_TCG_J4_tstbit0_tp1_jump_nt(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 1, true, RsV, riV) +#define fGEN_TCG_J4_tstbit0_tp1_jump_t(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 1, true, RsV, riV) +#define fGEN_TCG_J4_tstbit0_fp1_jump_nt(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 1, false, RsV, riV) +#define fGEN_TCG_J4_tstbit0_fp1_jump_t(SHORTCODE) \ + gen_cmpnd_tstbit0_jmp(ctx, 1, false, RsV, riV) + #define fGEN_TCG_J2_pause(SHORTCODE) \ do { \ uiV = uiV; \ diff --git a/target/hexagon/genptr.c b/target/hexagon/genptr.c index 88e6898027..a2a088cd25 100644 --- a/target/hexagon/genptr.c +++ b/target/hexagon/genptr.c @@ -499,6 +499,78 @@ static void gen_set_usr_fieldi(int field, int x) gen_set_usr_field(field, val); } +static void gen_compare(TCGCond cond, TCGv res, TCGv arg1, TCGv arg2) +{ + TCGv one = tcg_constant_tl(0xff); + TCGv zero = tcg_constant_tl(0); + + tcg_gen_movcond_tl(cond, res, arg1, arg2, one, zero); +} + +static void gen_cond_jump(DisasContext *ctx, TCGv pred, int pc_off) +{ + gen_write_new_pc_pcrel(ctx, pc_off, pred); +} + +static void gen_cmpnd_cmp_jmp(DisasContext *ctx, + int pnum, TCGCond cond, + bool sense, TCGv arg1, TCGv arg2, + int pc_off) +{ + if (ctx->insn->part1) { + TCGv pred = tcg_temp_new(); + gen_compare(cond, pred, arg1, arg2); + gen_log_pred_write(ctx, pnum, pred); + tcg_temp_free(pred); + } else { + TCGv pred = tcg_temp_new(); + + tcg_gen_mov_tl(pred, hex_new_pred_value[pnum]); + if (!sense) { + tcg_gen_xori_tl(pred, pred, 0xff); + } + + gen_cond_jump(ctx, pred, pc_off); + + tcg_temp_free(pred); + } +} + +static void gen_cmpnd_cmpi_jmp(DisasContext *ctx, + int pnum, TCGCond cond, + bool sense, TCGv arg1, int arg2, + int pc_off) +{ + TCGv tmp = tcg_constant_tl(arg2); + gen_cmpnd_cmp_jmp(ctx, pnum, cond, sense, arg1, tmp, pc_off); +} + +static void gen_cmpnd_cmp_n1_jmp(DisasContext *ctx, int pnum, TCGCond cond, + bool sense, TCGv arg, int pc_off) +{ + gen_cmpnd_cmpi_jmp(ctx, pnum, cond, sense, arg, -1, pc_off); +} + +static void gen_cmpnd_tstbit0_jmp(DisasContext *ctx, + int pnum, bool sense, TCGv arg, int pc_off) +{ + if (ctx->insn->part1) { + TCGv pred = tcg_temp_new(); + tcg_gen_andi_tl(pred, arg, 1); + gen_8bitsof(pred, pred); + gen_log_pred_write(ctx, pnum, pred); + tcg_temp_free(pred); + } else { + TCGv pred = tcg_temp_new(); + tcg_gen_mov_tl(pred, hex_new_pred_value[pnum]); + if (!sense) { + tcg_gen_xori_tl(pred, pred, 0xff); + } + gen_cond_jump(ctx, pred, pc_off); + tcg_temp_free(pred); + } +} + static void gen_call(DisasContext *ctx, int pc_off) { TCGv next_PC =