ir: Add opcodes for signed saturated doubling multiplies

src/frontend/ir/ir_emitter.cpp

@@ -1511,6 +1511,17 @@ U128 IREmitter::VectorSignedSaturatedAbs(size_t esize, const U128& a) {
     return {};
 }
 
+U128 IREmitter::VectorSignedSaturatedDoublingMultiplyReturnHigh(size_t esize, const U128& a, const U128& b) {
+    switch (esize) {
+    case 16:
+        return Inst<U128>(Opcode::VectorSignedSaturatedDoublingMultiplyReturnHigh16, a, b);
+    case 32:
+        return Inst<U128>(Opcode::VectorSignedSaturatedDoublingMultiplyReturnHigh32, a, b);
+    }
+    UNREACHABLE();
+    return {};
+}
+
 U128 IREmitter::VectorSignedSaturatedNarrowToSigned(size_t original_esize, const U128& a) {
     switch (original_esize) {
     case 16:

src/frontend/ir/ir_emitter.h

@@ -264,6 +264,7 @@ public:
     U128 VectorSignExtend(size_t original_esize, const U128& a);
     U128 VectorSignedAbsoluteDifference(size_t esize, const U128& a, const U128& b);
     U128 VectorSignedSaturatedAbs(size_t esize, const U128& a);
+    U128 VectorSignedSaturatedDoublingMultiplyReturnHigh(size_t esize, const U128& a, const U128& b);
     U128 VectorSignedSaturatedNarrowToSigned(size_t original_esize, const U128& a);
     U128 VectorSignedSaturatedNarrowToUnsigned(size_t original_esize, const U128& a);
     U128 VectorSub(size_t esize, const U128& a, const U128& b);

src/frontend/ir/microinstruction.cpp

@@ -357,6 +357,8 @@ bool Inst::WritesToFPSRCumulativeSaturationBit() const {
     case Opcode::VectorSignedSaturatedNarrowToUnsigned16:
     case Opcode::VectorSignedSaturatedNarrowToUnsigned32:
     case Opcode::VectorSignedSaturatedNarrowToUnsigned64:
+    case Opcode::VectorSignedSaturatedDoublingMultiplyReturnHigh16:
+    case Opcode::VectorSignedSaturatedDoublingMultiplyReturnHigh32:
     case Opcode::VectorUnsignedSaturatedNarrow16:
     case Opcode::VectorUnsignedSaturatedNarrow32:
     case Opcode::VectorUnsignedSaturatedNarrow64: