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| author | Taylor Simpson <tsimpson@quicinc.com> | 2023-03-06 18:58:17 -0800 |
|---|---|---|
| committer | Taylor Simpson <tsimpson@quicinc.com> | 2023-03-06 20:47:12 -0800 |
| commit | b8552a78a2e419b6680ade33fcf172f453b3d67b (patch) | |
| tree | 37f3122df8da138f6ccd975bda48646630423b48 | |
| parent | 242af2c0b3cc71d5b83fc81770b87d7c23808cd6 (diff) | |
| download | qemu-b8552a78a2e419b6680ade33fcf172f453b3d67b.zip qemu-b8552a78a2e419b6680ade33fcf172f453b3d67b.tar.gz qemu-b8552a78a2e419b6680ade33fcf172f453b3d67b.tar.bz2 | |
Hexagon (target/hexagon) Add overrides for endloop1/endloop01
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230307025828.1612809-4-tsimpson@quicinc.com>
| -rw-r--r-- | target/hexagon/gen_tcg.h | 4 | ||||
| -rw-r--r-- | target/hexagon/genptr.c | 78 |
2 files changed, 82 insertions, 0 deletions
diff --git a/target/hexagon/gen_tcg.h b/target/hexagon/gen_tcg.h index fb23d56..5b7263a 100644 --- a/target/hexagon/gen_tcg.h +++ b/target/hexagon/gen_tcg.h @@ -603,6 +603,10 @@ #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 592438f..f7017fd 100644 --- a/target/hexagon/genptr.c +++ b/target/hexagon/genptr.c @@ -770,6 +770,84 @@ static void gen_endloop0(DisasContext *ctx) } } +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_new(); + TCGLabel *label1 = gen_new_label(); + TCGLabel *label2 = gen_new_label(); + TCGLabel *label3 = gen_new_label(); + TCGLabel *done = gen_new_label(); + + GET_USR_FIELD(USR_LPCFG, lpcfg); + + /* + * if (lpcfg == 1) { + * hex_new_pred_value[3] = 0xff; + * hex_pred_written |= 1 << 3; + * } + */ + 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); + * } + */ + 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; + * } + * } + */ + 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); +} + static void gen_cmp_jumpnv(DisasContext *ctx, TCGCond cond, TCGv val, TCGv src, int pc_off) { |