Avoid Vector API conversions involving the f32x2 shape

Author: jirkamarsik

wasm/src/org.graalvm.wasm.jdk25/src/org/graalvm/wasm/api/Vector128OpsVectorAPI.java

@@ -366,16 +366,16 @@ public ByteVector unary(ByteVector xVec, int vectorOpcode) {
             case Bytecode.VECTOR_F64X2_TRUNC -> trunc(x, F64X2, I64X2, VectorOperators.REINTERPRET_D2L, VectorOperators.REINTERPRET_L2D,
                             Vector128OpsVectorAPI::getExponentDoubles, DOUBLE_SIGNIFICAND_WIDTH, I64X2.broadcast(DOUBLE_SIGNIF_BIT_MASK));
             case Bytecode.VECTOR_F64X2_NEAREST -> nearest(x, F64X2, 1L << (DOUBLE_SIGNIFICAND_WIDTH - 1));
-            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F32X4_S, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F32X4_S -> I8X16.species().fromArray(fallbackOps.unary(x.toArray(), vectorOpcode), 0); // GR-51421
-            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F32X4_U, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F32X4_U -> I8X16.species().fromArray(fallbackOps.unary(x.toArray(), vectorOpcode), 0); // GR-51421
+            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F32X4_S, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F32X4_S -> fromArray(fallbackOps.unary(x.toArray(), vectorOpcode)); // GR-51421
+            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F32X4_U, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F32X4_U -> fromArray(fallbackOps.unary(x.toArray(), vectorOpcode)); // GR-51421
             case Bytecode.VECTOR_F32X4_CONVERT_I32X4_S -> convert(x, I32X4, VectorOperators.I2F);
-            case Bytecode.VECTOR_F32X4_CONVERT_I32X4_U -> f32x4_convert_i32x4_u(x);
-            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F64X2_S_ZERO, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F64X2_S_ZERO -> I8X16.species().fromArray(fallbackOps.unary(x.toArray(), vectorOpcode), 0); // GR-51421
-            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F64X2_U_ZERO, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F64X2_U_ZERO -> I8X16.species().fromArray(fallbackOps.unary(x.toArray(), vectorOpcode), 0); // GR-51421
+            case Bytecode.VECTOR_F32X4_CONVERT_I32X4_U -> fromArray(fallbackOps.unary(x.toArray(), vectorOpcode)); // GR-68843
+            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F64X2_S_ZERO, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F64X2_S_ZERO -> fromArray(fallbackOps.unary(x.toArray(), vectorOpcode)); // GR-51421
+            case Bytecode.VECTOR_I32X4_TRUNC_SAT_F64X2_U_ZERO, Bytecode.VECTOR_I32X4_RELAXED_TRUNC_F64X2_U_ZERO -> fromArray(fallbackOps.unary(x.toArray(), vectorOpcode)); // GR-51421
             case Bytecode.VECTOR_F64X2_CONVERT_LOW_I32X4_S -> convert(x, I32X4, VectorOperators.I2D);
             case Bytecode.VECTOR_F64X2_CONVERT_LOW_I32X4_U -> f64x2_convert_low_i32x4_u(x);
-            case Bytecode.VECTOR_F32X4_DEMOTE_F64X2_ZERO -> f32X4_demote_f64X2_zero(x);
-            case Bytecode.VECTOR_F64X2_PROMOTE_LOW_F32X4 -> convert(x, F32X4, VectorOperators.F2D);
+            case Bytecode.VECTOR_F32X4_DEMOTE_F64X2_ZERO -> fromArray(fallbackOps.unary(x.toArray(), vectorOpcode)); // GR-68843
+            case Bytecode.VECTOR_F64X2_PROMOTE_LOW_F32X4 -> fromArray(fallbackOps.unary(x.toArray(), vectorOpcode)); // GR-68843
             default -> throw CompilerDirectives.shouldNotReachHere();
         });
     }
@@ -889,6 +889,7 @@ private static ByteVector i32x4_trunc_sat_f32x4_u(ByteVector xBytes) {
         return result.reinterpretAsBytes();
     }
 
+    @SuppressWarnings("unused")
     private static ByteVector f32x4_convert_i32x4_u(ByteVector xBytes) {
         IntVector x = xBytes.reinterpretAsInts();
         LongVector xUnsignedLow = castLong128(x.convert(VectorOperators.ZERO_EXTEND_I2L, 0));
@@ -915,6 +916,7 @@ private static ByteVector f64x2_convert_low_i32x4_u(ByteVector xBytes) {
         return result.reinterpretAsBytes();
     }
 
+    @SuppressWarnings("unused")
     private static ByteVector f32X4_demote_f64X2_zero(ByteVector xBytes) {
         DoubleVector x = F64X2.reinterpret(xBytes);
         Vector<Float> result = compactGeneral(x, 0, I64X2, F32X4, VectorOperators.D2F, VectorOperators.REINTERPRET_F2I, VectorOperators.ZERO_EXTEND_I2L);