From: Taylor Simpson <tsimpson@quicinc.com>
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 3/9] Hexagon (target/hexagon) Add overrides for endloop1/endloop01
Date: Thu, 5 Jan 2023 14:13:25 -0800 [thread overview]
Message-ID: <20230105221331.12069-4-tsimpson@quicinc.com> (raw)
In-Reply-To: <20230105221331.12069-1-tsimpson@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
---
target/hexagon/gen_tcg.h | 4 ++
target/hexagon/genptr.c | 79 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 83 insertions(+)
diff --git a/target/hexagon/gen_tcg.h b/target/hexagon/gen_tcg.h
index 9e8f3373ad..6267f51ccc 100644
--- a/target/hexagon/gen_tcg.h
+++ b/target/hexagon/gen_tcg.h
@@ -628,6 +628,10 @@
#define fGEN_TCG_J2_endloop0(SHORTCODE) \
gen_endloop0(ctx)
+#define fGEN_TCG_J2_endloop1(SHORTCODE) \
+ gen_endloop1(ctx)
+#define fGEN_TCG_J2_endloop01(SHORTCODE) \
+ gen_endloop01(ctx)
/*
* Compound compare and jump instructions
diff --git a/target/hexagon/genptr.c b/target/hexagon/genptr.c
index d15df1dd28..94054b10e6 100644
--- a/target/hexagon/genptr.c
+++ b/target/hexagon/genptr.c
@@ -763,6 +763,85 @@ static void gen_endloop0(DisasContext *ctx)
tcg_temp_free(lpcfg);
}
+static void gen_endloop1(DisasContext *ctx)
+{
+ /*
+ * if (hex_gpr[HEX_REG_LC1] > 1) {
+ * PC = hex_gpr[HEX_REG_SA1];
+ * hex_new_value[HEX_REG_LC1] = hex_gpr[HEX_REG_LC1] - 1;
+ * }
+ */
+ TCGLabel *label = gen_new_label();
+ tcg_gen_brcondi_tl(TCG_COND_LEU, hex_gpr[HEX_REG_LC1], 1, label);
+ {
+ gen_jumpr(ctx, hex_gpr[HEX_REG_SA1]);
+ tcg_gen_subi_tl(hex_new_value[HEX_REG_LC1], hex_gpr[HEX_REG_LC1], 1);
+ }
+ gen_set_label(label);
+}
+
+static void gen_endloop01(DisasContext *ctx)
+{
+ TCGv lpcfg = tcg_temp_local_new();
+
+ GET_USR_FIELD(USR_LPCFG, lpcfg);
+
+ /*
+ * if (lpcfg == 1) {
+ * hex_new_pred_value[3] = 0xff;
+ * hex_pred_written |= 1 << 3;
+ * }
+ */
+ TCGLabel *label1 = gen_new_label();
+ tcg_gen_brcondi_tl(TCG_COND_NE, lpcfg, 1, label1);
+ {
+ tcg_gen_movi_tl(hex_new_pred_value[3], 0xff);
+ tcg_gen_ori_tl(hex_pred_written, hex_pred_written, 1 << 3);
+ }
+ gen_set_label(label1);
+
+ /*
+ * if (lpcfg) {
+ * SET_USR_FIELD(USR_LPCFG, lpcfg - 1);
+ * }
+ */
+ TCGLabel *label2 = gen_new_label();
+ tcg_gen_brcondi_tl(TCG_COND_EQ, lpcfg, 0, label2);
+ {
+ tcg_gen_subi_tl(lpcfg, lpcfg, 1);
+ SET_USR_FIELD(USR_LPCFG, lpcfg);
+ }
+ gen_set_label(label2);
+
+ /*
+ * if (hex_gpr[HEX_REG_LC0] > 1) {
+ * PC = hex_gpr[HEX_REG_SA0];
+ * hex_new_value[HEX_REG_LC0] = hex_gpr[HEX_REG_LC0] - 1;
+ * } else {
+ * if (hex_gpr[HEX_REG_LC1] > 1) {
+ * hex_next_pc = hex_gpr[HEX_REG_SA1];
+ * hex_new_value[HEX_REG_LC1] = hex_gpr[HEX_REG_LC1] - 1;
+ * }
+ * }
+ */
+ TCGLabel *label3 = gen_new_label();
+ TCGLabel *done = gen_new_label();
+ tcg_gen_brcondi_tl(TCG_COND_LEU, hex_gpr[HEX_REG_LC0], 1, label3);
+ {
+ gen_jumpr(ctx, hex_gpr[HEX_REG_SA0]);
+ tcg_gen_subi_tl(hex_new_value[HEX_REG_LC0], hex_gpr[HEX_REG_LC0], 1);
+ tcg_gen_br(done);
+ }
+ gen_set_label(label3);
+ tcg_gen_brcondi_tl(TCG_COND_LEU, hex_gpr[HEX_REG_LC1], 1, done);
+ {
+ gen_jumpr(ctx, hex_gpr[HEX_REG_SA1]);
+ tcg_gen_subi_tl(hex_new_value[HEX_REG_LC1], hex_gpr[HEX_REG_LC1], 1);
+ }
+ gen_set_label(done);
+ tcg_temp_free(lpcfg);
+}
+
static void gen_cmp_jumpnv(DisasContext *ctx,
TCGCond cond, TCGv val, TCGv src, int pc_off)
{
--
2.17.1
next prev parent reply other threads:[~2023-01-05 22:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-05 22:13 [PATCH v3 0/9] Hexagon: COF overrides, new generator, test update Taylor Simpson
2023-01-05 22:13 ` [PATCH v3 1/9] Hexagon (target/hexagon) Add overrides for jumpr31 instructions Taylor Simpson
2023-01-05 22:13 ` [PATCH v3 2/9] Hexagon (target/hexagon) Add overrides for callr Taylor Simpson
2023-01-05 22:13 ` Taylor Simpson [this message]
2023-01-05 22:13 ` [PATCH v3 4/9] Hexagon (target/hexagon) Add overrides for dealloc-return instructions Taylor Simpson
2023-01-05 22:13 ` [PATCH v3 5/9] Hexagon (target/hexagon) Analyze packet before generating TCG Taylor Simpson
2023-01-05 22:13 ` [PATCH v3 6/9] Hexagon (target/hexagon) Analyze packet for HVX Taylor Simpson
2023-01-05 22:13 ` [PATCH v3 7/9] Hexagon (tests/tcg/hexagon) Update preg_alias.c Taylor Simpson
2023-01-05 22:13 ` [PATCH v3 8/9] Hexagon (tests/tcg/hexagon) Remove __builtin from scatter_gather Taylor Simpson
2023-01-05 22:13 ` [PATCH v3 9/9] Hexagon (tests/tcg/hexagon) Enable HVX tests Taylor Simpson
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