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-rw-r--r--target/hexagon/genptr.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/target/hexagon/genptr.c b/target/hexagon/genptr.c
index cd3d745..580c403 100644
--- a/target/hexagon/genptr.c
+++ b/target/hexagon/genptr.c
@@ -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)
{