X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=deps%2Flightrec%2Foptimizer.c;h=10067a7d082d72d42ece4487a41445c6e87903c6;hb=aeb8209980cab1c6e30f4d05a50c2b3c2a366d6a;hp=019072257e5558de59e48a180d3b0e61548f889e;hpb=cdfa353653a8dec134873b2e4b38a7ebf98fc0ef;p=pcsx_rearmed.git

diff --git a/deps/lightrec/optimizer.c b/deps/lightrec/optimizer.c
index 01907225..10067a7d 100644
--- a/deps/lightrec/optimizer.c
+++ b/deps/lightrec/optimizer.c
@@ -181,6 +181,8 @@ static u64 opcode_write_mask(union code op)
 	case OP_LBU:
 	case OP_LHU:
 	case OP_LWR:
+	case OP_META_EXTC:
+	case OP_META_EXTS:
 		return BIT(op.i.rt);
 	case OP_JAL:
 		return BIT(31);
@@ -763,6 +765,22 @@ static u32 lightrec_propagate_consts(const struct opcode *op,
 			known &= ~BIT(c.r.rd);
 		}
 		break;
+	case OP_META_EXTC:
+		if (known & BIT(c.i.rs)) {
+			known |= BIT(c.i.rt);
+			v[c.i.rt] = (s32)(s8)v[c.i.rs];
+		} else {
+			known &= ~BIT(c.i.rt);
+		}
+		break;
+	case OP_META_EXTS:
+		if (known & BIT(c.i.rs)) {
+			known |= BIT(c.i.rt);
+			v[c.i.rt] = (s32)(s16)v[c.i.rs];
+		} else {
+			known &= ~BIT(c.i.rt);
+		}
+		break;
 	default:
 		break;
 	}
@@ -1094,7 +1112,7 @@ static int lightrec_transform_ops(struct lightrec_state *state, struct block *bl
 				else
 					op->i.op = OP_META_MULTU2;
 
-				op->r.op = ffs32(values[op->r.rt]);
+				op->r.op = ctz32(values[op->r.rt]);
 				break;
 			case OP_SPECIAL_OR:
 			case OP_SPECIAL_ADD: