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Hexagon (target/hexagon) Add overrides for endloop1/endloop01

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Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230307025828.1612809-4-tsimpson@quicinc.com>
This commit is contained in:
Taylor Simpson 2023-03-06 18:58:17 -08:00
parent 242af2c0b3
commit b8552a78a2
2 changed files with 82 additions and 0 deletions
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4
target/hexagon/gen_tcg.h
View File

@ -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

78
target/hexagon/genptr.c
View File

@ -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)
{