@@ -612,6 +612,14 @@
tcg_temp_free(tmp); \
} while (0)
+#define fGEN_TCG_J2_call(SHORTCODE) \
+ gen_call(ctx, riV)
+
+#define fGEN_TCG_J2_callt(SHORTCODE) \
+ gen_cond_call(ctx, PuV, TCG_COND_EQ, riV)
+#define fGEN_TCG_J2_callf(SHORTCODE) \
+ gen_cond_call(ctx, PuV, TCG_COND_NE, riV)
+
#define fGEN_TCG_J2_pause(SHORTCODE) \
do { \
uiV = uiV; \
@@ -456,6 +456,61 @@ static TCGv gen_8bitsof(TCGv result, TCGv value)
return result;
}
+static void gen_write_new_pc_addr(DisasContext *ctx, TCGv addr,
+ TCGCond cond, TCGv pred)
+{
+ TCGLabel *pred_false = NULL;
+ if (cond != TCG_COND_ALWAYS) {
+ pred_false = gen_new_label();
+ tcg_gen_brcondi_tl(cond, pred, 0, pred_false);
+ }
+
+ if (ctx->pkt->pkt_has_multi_cof) {
+ /* If there are multiple branches in a packet, ignore the second one */
+ tcg_gen_movcond_tl(TCG_COND_NE, hex_gpr[HEX_REG_PC],
+ hex_branch_taken, tcg_constant_tl(0),
+ hex_gpr[HEX_REG_PC], addr);
+ tcg_gen_movi_tl(hex_branch_taken, 1);
+ } else {
+ tcg_gen_mov_tl(hex_gpr[HEX_REG_PC], addr);
+ }
+
+ if (cond != TCG_COND_ALWAYS) {
+ gen_set_label(pred_false);
+ }
+}
+
+static void gen_write_new_pc_pcrel(DisasContext *ctx, int pc_off,
+ TCGCond cond, TCGv pred)
+{
+ target_ulong dest = ctx->pkt->pc + pc_off;
+ gen_write_new_pc_addr(ctx, tcg_constant_tl(dest), cond, pred);
+}
+
+static void gen_call(DisasContext *ctx, int pc_off)
+{
+ TCGv next_PC =
+ tcg_constant_tl(ctx->pkt->pc + ctx->pkt->encod_pkt_size_in_bytes);
+ gen_log_reg_write(HEX_REG_LR, next_PC);
+ gen_write_new_pc_pcrel(ctx, pc_off, TCG_COND_ALWAYS, NULL);
+}
+
+static void gen_cond_call(DisasContext *ctx, TCGv pred,
+ TCGCond cond, int pc_off)
+{
+ TCGv next_PC;
+ TCGv lsb = tcg_temp_local_new();
+ TCGLabel *skip = gen_new_label();
+ tcg_gen_andi_tl(lsb, pred, 1);
+ gen_write_new_pc_pcrel(ctx, pc_off, cond, lsb);
+ tcg_gen_brcondi_tl(cond, lsb, 0, skip);
+ tcg_temp_free(lsb);
+ next_PC =
+ tcg_constant_tl(ctx->pkt->pc + ctx->pkt->encod_pkt_size_in_bytes);
+ gen_log_reg_write(HEX_REG_LR, next_PC);
+ gen_set_label(skip);
+}
+
/* Shift left with saturation */
static void gen_shl_sat(TCGv dst, TCGv src, TCGv shift_amt)
{
Add overrides for J2_call J2_callt J2_callf Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20221108162906.3166-8-tsimpson@quicinc.com> --- target/hexagon/gen_tcg.h | 8 ++++++ target/hexagon/genptr.c | 55 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 63 insertions(+)