diff --git a/flang/lib/Optimizer/CodeGen/Target.cpp b/flang/lib/Optimizer/CodeGen/Target.cpp
--- a/flang/lib/Optimizer/CodeGen/Target.cpp
+++ b/flang/lib/Optimizer/CodeGen/Target.cpp
@@ -334,6 +334,54 @@
 };
 } // namespace
 
+//===----------------------------------------------------------------------===//
+// RISCV64 linux target specifics.
+//===----------------------------------------------------------------------===//
+
+namespace {
+struct TargetRISCV64 : public GenericTarget<TargetRISCV64> {
+  using GenericTarget::GenericTarget;
+
+  static constexpr int defaultWidth = 64;
+
+  CodeGenSpecifics::Marshalling
+  complexArgumentType(mlir::Location loc, mlir::Type eleTy) const override {
+    CodeGenSpecifics::Marshalling marshal;
+    const auto *sem = &floatToSemantics(kindMap, eleTy);
+    if (sem == &llvm::APFloat::IEEEsingle() ||
+        sem == &llvm::APFloat::IEEEdouble()) {
+      // A complex floating-point number,
+      // or a struct containing just one complex floating-point number,
+      // is passed as though it were a struct containing two floating-point
+      // reals.
+      mlir::TypeRange range = {eleTy, eleTy};
+      marshal.emplace_back(mlir::TupleType::get(eleTy.getContext(), range),
+                           AT{});
+    } else {
+      TODO(loc, "complex for this precision");
+    }
+    return marshal;
+  }
+
+  CodeGenSpecifics::Marshalling
+  complexReturnType(mlir::Location loc, mlir::Type eleTy) const override {
+    CodeGenSpecifics::Marshalling marshal;
+    const auto *sem = &floatToSemantics(kindMap, eleTy);
+    if (sem == &llvm::APFloat::IEEEsingle() ||
+        sem == &llvm::APFloat::IEEEdouble()) {
+      // Use a type that will be translated into LLVM as:
+      // { t, t }   struct of 2 eleTy, byVal
+      mlir::TypeRange range = {eleTy, eleTy};
+      marshal.emplace_back(mlir::TupleType::get(eleTy.getContext(), range),
+                           AT{/*alignment=*/0, /*byval=*/true});
+    } else {
+      TODO(loc, "complex for this precision");
+    }
+    return marshal;
+  }
+};
+} // namespace
+
 // Instantiate the overloaded target instance based on the triple value.
 // TODO: Add other targets to this file as needed.
 std::unique_ptr<fir::CodeGenSpecifics>
@@ -409,6 +457,15 @@
                                              std::move(kindMap));
     }
     break;
+  case llvm::Triple::ArchType::riscv64:
+    switch (trp.getOS()) {
+    default:
+      break;
+    case llvm::Triple::OSType::Linux:
+      return std::make_unique<TargetRISCV64>(ctx, std::move(trp),
+                                             std::move(kindMap));
+    }
+    break;
   }
   TODO(mlir::UnknownLoc::get(ctx), "target not implemented");
 }
diff --git a/flang/test/Fir/target-rewrite-complex.fir b/flang/test/Fir/target-rewrite-complex.fir
--- a/flang/test/Fir/target-rewrite-complex.fir
+++ b/flang/test/Fir/target-rewrite-complex.fir
@@ -4,6 +4,7 @@
 // RUN: fir-opt --target-rewrite="target=powerpc64le-unknown-linux-gnu" %s | FileCheck %s --check-prefix=PPC
 // RUN: fir-opt --target-rewrite="target=sparc64-unknown-linux-gnu" %s | FileCheck %s --check-prefix=SPARCV9
 // RUN: fir-opt --target-rewrite="target=sparcv9-sun-solaris2.11" %s | FileCheck %s --check-prefix=SPARCV9
+// RUN: fir-opt --target-rewrite="target=riscv64-unknown-linux-gnu" %s | FileCheck %s --check-prefix=RISCV64
 
 // Test that we rewrite the signature and body of a function that returns a
 // complex<4>.
@@ -12,6 +13,7 @@
 // AARCH64-LABEL: func @returncomplex4() -> tuple<!fir.real<4>, !fir.real<4>>
 // PPC-LABEL: func @returncomplex4() -> tuple<!fir.real<4>, !fir.real<4>>
 // SPARCV9-LABEL: func @returncomplex4() -> tuple<!fir.real<4>, !fir.real<4>>
+// RISCV64-LABEL: func @returncomplex4() -> tuple<!fir.real<4>, !fir.real<4>>
 func.func @returncomplex4() -> !fir.complex<4> {
   // I32: fir.insert_value
   // I32: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value
@@ -23,6 +25,8 @@
   // PPC: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value
   // SPARCV9: fir.insert_value
   // SPARCV9: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value
+  // RISCV64: fir.insert_value
+  // RISCV64: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value
   %1 = fir.undefined !fir.complex<4>
   %2 = arith.constant 2.0 : f32
   %3 = fir.convert %2 : (f32) -> !fir.real<4>
@@ -57,6 +61,8 @@
   // SPARCV9: fir.store [[VAL]] to [[ADDRC]] : !fir.ref<!fir.complex<4>>
   // SPARCV9: [[RES:%[0-9A-Za-z]+]] = fir.load [[ADDRT]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
   // SPARCV9: return [[RES]] : tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64: [[ADDRT:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64: [[ADDRC:%[0-9A-Za-z]+]] = fir.convert [[ADDRT]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
   return %6 : !fir.complex<4>
 }
 
@@ -68,6 +74,7 @@
 // AARCH64-LABEL: func @returncomplex8() -> tuple<!fir.real<8>, !fir.real<8>>
 // PPC-LABEL: func @returncomplex8() -> tuple<!fir.real<8>, !fir.real<8>>
 // SPARCV9-LABEL: func @returncomplex8() -> tuple<!fir.real<8>, !fir.real<8>>
+// RISCV64-LABEL: func @returncomplex8() -> tuple<!fir.real<8>, !fir.real<8>>
 func.func @returncomplex8() -> !fir.complex<8> {
   // I32: fir.insert_value
   // I32: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value {{.*}}
@@ -79,6 +86,8 @@
   // PPC: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value {{.*}}
   // SPARCV9: fir.insert_value
   // SPARCV9: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value {{.*}}
+  // RISCV64: fir.insert_value
+  // RISCV64: [[VAL:%[0-9A-Za-z]+]] = fir.insert_value {{.*}}
   %1 = fir.undefined !fir.complex<8>
   %2 = arith.constant 1.0 : f64
   %3 = arith.constant -4.0 : f64
@@ -110,6 +119,11 @@
   // SPARCV9: fir.store [[VAL]] to [[ADDRC]] : !fir.ref<!fir.complex<8>>
   // SPARCV9: [[RES:%[0-9A-Za-z]+]] = fir.load [[ADDRT]] : !fir.ref<tuple<!fir.real<8>, !fir.real<8>>>
   // SPARCV9: return [[RES]] : tuple<!fir.real<8>, !fir.real<8>>
+  // RISCV64: [[ADDRT:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<8>, !fir.real<8>>
+  // RISCV64: [[ADDRC:%[0-9A-Za-z]+]] = fir.convert [[ADDRT]] : (!fir.ref<tuple<!fir.real<8>, !fir.real<8>>>) -> !fir.ref<!fir.complex<8>>
+  // RISCV64: fir.store [[VAL]] to [[ADDRC]] : !fir.ref<!fir.complex<8>>
+  // RISCV64: [[RES:%[0-9A-Za-z]+]] = fir.load [[ADDRT]] : !fir.ref<tuple<!fir.real<8>, !fir.real<8>>>
+  // RISCV64: return [[RES]] : tuple<!fir.real<8>, !fir.real<8>>
   return %5 : !fir.complex<8>
 }
 
@@ -119,6 +133,7 @@
 // AARCH64-LABEL: func private @paramcomplex4(!fir.array<2x!fir.real<4>>)
 // PPC-LABEL: func private @paramcomplex4(!fir.real<4>, !fir.real<4>)
 // SPARCV9-LABEL: func private @paramcomplex4(!fir.real<4>, !fir.real<4>)
+// RISCV64-LABEL: func private @paramcomplex4(tuple<!fir.real<4>, !fir.real<4>>)
 func.func private @paramcomplex4(!fir.complex<4>) -> ()
 
 // Test that we rewrite calls to functions that return or accept complex<4>.
@@ -127,6 +142,7 @@
 // AARCH64-LABEL: func @callcomplex4()
 // PPC-LABEL: func @callcomplex4()
 // SPARCV9-LABEL: func @callcomplex4()
+// RISCV64-LABEL: func @callcomplex4()
 func.func @callcomplex4() {
 
   // I32: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex4() : () -> i64
@@ -134,6 +150,7 @@
   // AARCH64: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex4() : () -> tuple<!fir.real<4>, !fir.real<4>>
   // PPC: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex4() : () -> tuple<!fir.real<4>, !fir.real<4>>
   // SPARCV9: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex4() : () -> tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex4() : () -> tuple<!fir.real<4>, !fir.real<4>>
   %1 = fir.call @returncomplex4() : () -> !fir.complex<4>
 
   // I32: [[ADDRI64:%[0-9A-Za-z]+]] = fir.alloca i64
@@ -180,6 +197,16 @@
   // SPARCV9: [[A:%[0-9A-Za-z]+]] = fir.extract_value [[V]], [0 : i32] : (!fir.complex<4>) -> !fir.real<4>
   // SPARCV9: [[B:%[0-9A-Za-z]+]] = fir.extract_value [[V]], [1 : i32] : (!fir.complex<4>) -> !fir.real<4>
   // SPARCV9: fir.call @paramcomplex4([[A]], [[B]]) : (!fir.real<4>, !fir.real<4>) -> ()
+
+  // RISCV64: [[ADDRT:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64: fir.store [[RES]] to [[ADDRT]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+  // RISCV64: [[ADDRC:%[0-9A-Za-z]+]] = fir.convert [[ADDRT]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64: [[V:%[0-9A-Za-z]+]] = fir.load [[ADDRC]] : !fir.ref<!fir.complex<4>>
+  // RISCV64: [[ADDRARR:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64: [[ADDRC2:%[0-9A-Za-z]+]] = fir.convert [[ADDRARR]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64: fir.store [[V]] to [[ADDRC2]] : !fir.ref<!fir.complex<4>>
+  // RISCV64: [[ARR:%[0-9A-Za-z]+]] = fir.load [[ADDRARR]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+  // RISCV64: fir.call @paramcomplex4([[ARR]]) : (tuple<!fir.real<4>, !fir.real<4>>) -> ()
   fir.call @paramcomplex4(%1) : (!fir.complex<4>) -> ()
   return
 }
@@ -190,6 +217,7 @@
 // AARCH64-LABEL: func private @paramcomplex8(!fir.array<2x!fir.real<8>>)
 // PPC-LABEL: func private @paramcomplex8(!fir.real<8>, !fir.real<8>)
 // SPARCV9-LABEL: func private @paramcomplex8(!fir.real<8>, !fir.real<8>)
+// RISCV64-LABEL: func private @paramcomplex8(tuple<!fir.real<8>, !fir.real<8>>)
 func.func private @paramcomplex8(!fir.complex<8>) -> ()
 
 // Test that we rewrite calls to functions that return or accept complex<8>.
@@ -198,6 +226,7 @@
 // AARCH64-LABEL: func @callcomplex8()
 // PPC-LABEL: func @callcomplex8()
 // SPARCV9-LABEL: func @callcomplex8()
+// RISCV64-LABEL: func @callcomplex8()
 func.func @callcomplex8() {
   // I32: [[RES:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<8>, !fir.real<8>>
   // I32: fir.call @returncomplex8([[RES]]) : (!fir.ref<tuple<!fir.real<8>, !fir.real<8>>>) -> ()
@@ -205,6 +234,7 @@
   // AARCH64: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex8() : () -> tuple<!fir.real<8>, !fir.real<8>>
   // PPC: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex8() : () -> tuple<!fir.real<8>, !fir.real<8>>
   // SPARCV9: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex8() : () -> tuple<!fir.real<8>, !fir.real<8>>
+  // RISCV64: [[RES:%[0-9A-Za-z]+]] = fir.call @returncomplex8() : () -> tuple<!fir.real<8>, !fir.real<8>>
   %1 = fir.call @returncomplex8() : () -> !fir.complex<8>
 
   // I32: [[RESC:%[0-9A-Za-z]+]] = fir.convert [[RES]] : (!fir.ref<tuple<!fir.real<8>, !fir.real<8>>>) -> !fir.ref<!fir.complex<8>>
@@ -248,6 +278,14 @@
   // SPARCV9: [[B:%[0-9A-Za-z]+]] = fir.extract_value [[V]], [1 : i32] : (!fir.complex<8>) -> !fir.real<8>
   // SPARCV9: fir.call @paramcomplex8([[A]], [[B]]) : (!fir.real<8>, !fir.real<8>) -> ()
 
+  // RISCV64: [[ADDRT:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<8>, !fir.real<8>>
+  // RISCV64: fir.store [[RES]] to [[ADDRT]] : !fir.ref<tuple<!fir.real<8>, !fir.real<8>>>
+  // RISCV64: [[ADDRC:%[0-9A-Za-z]+]] = fir.convert [[ADDRT]] : (!fir.ref<tuple<!fir.real<8>, !fir.real<8>>>) -> !fir.ref<!fir.complex<8>>
+  // RISCV64: [[V:%[0-9A-Za-z]+]] = fir.load [[ADDRC]] : !fir.ref<!fir.complex<8>>
+  // RISCV64: [[A:%[0-9A-Za-z]+]] = fir.convert [[ADDRARR]] : (!fir.ref<tuple<!fir.real<8>, !fir.real<8>>>) -> !fir.ref<!fir.complex<8>>
+  // RISCV64: [[B:%[0-9A-Za-z]+]] =  fir.load [[ADDRARR]] : !fir.ref<tuple<!fir.real<8>, !fir.real<8>>>
+  // RISCV64: fir.call @paramcomplex8([[ARR]]) : (tuple<!fir.real<8>, !fir.real<8>>) -> ()
+
   fir.call @paramcomplex8(%1) : (!fir.complex<8>) -> ()
   return
 }
@@ -258,6 +296,7 @@
 // AARCH64-LABEL: func private @calleemultipleparamscomplex4(!fir.array<2x!fir.real<4>>, !fir.array<2x!fir.real<4>>, !fir.array<2x!fir.real<4>>)
 // PPC-LABEL: func private @calleemultipleparamscomplex4(!fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>)
 // SPARCV9-LABEL: func private @calleemultipleparamscomplex4(!fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>)
+// RISCV64-LABEL: func private @calleemultipleparamscomplex4(tuple<!fir.real<4>, !fir.real<4>>, tuple<!fir.real<4>, !fir.real<4>>, tuple<!fir.real<4>, !fir.real<4>>)
 func.func private @calleemultipleparamscomplex4(!fir.complex<4>, !fir.complex<4>, !fir.complex<4>) -> ()
 
 // I32-LABEL: func @multipleparamscomplex4
@@ -270,6 +309,8 @@
 // PPC-SAME: ([[A1:%[0-9A-Za-z]+]]: !fir.real<4>, [[B1:%[0-9A-Za-z]+]]: !fir.real<4>, [[A2:%[0-9A-Za-z]+]]: !fir.real<4>, [[B2:%[0-9A-Za-z]+]]: !fir.real<4>, [[A3:%[0-9A-Za-z]+]]: !fir.real<4>, [[B3:%[0-9A-Za-z]+]]: !fir.real<4>)
 // SPARCV9-LABEL: func @multipleparamscomplex4
 // SPARCV9-SAME: ([[A1:%[0-9A-Za-z]+]]: !fir.real<4>, [[B1:%[0-9A-Za-z]+]]: !fir.real<4>, [[A2:%[0-9A-Za-z]+]]: !fir.real<4>, [[B2:%[0-9A-Za-z]+]]: !fir.real<4>, [[A3:%[0-9A-Za-z]+]]: !fir.real<4>, [[B3:%[0-9A-Za-z]+]]: !fir.real<4>)
+// RISCV64-LABEL: func @multipleparamscomplex4
+// RISCV64-SAME: ([[Z1:%[0-9A-Za-z]+]]: tuple<!fir.real<4>, !fir.real<4>>, [[Z2:%[0-9A-Za-z]+]]: tuple<!fir.real<4>, !fir.real<4>>, [[Z3:%[0-9A-Za-z]+]]: tuple<!fir.real<4>, !fir.real<4>>)
 func.func @multipleparamscomplex4(%z1 : !fir.complex<4>, %z2 : !fir.complex<4>, %z3 : !fir.complex<4>) {
   // I32-DAG: [[Z1_ADDR:%[0-9A-Za-z]+]] = fir.convert [[Z1]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
   // I32-DAG: [[Z1_VAL:%[0-9A-Za-z]+]] = fir.load [[Z1_ADDR]] : !fir.ref<!fir.complex<4>>
@@ -384,6 +425,33 @@
 
   // SPARCV9: fir.call @calleemultipleparamscomplex4([[A1_EXTR]], [[B1_EXTR]], [[A2_EXTR]], [[B2_EXTR]], [[A3_EXTR]], [[B3_EXTR]]) : (!fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>, !fir.real<4>) -> ()
 
+  // RISCV64-DAG: [[Z3_ADDR:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64-DAG: fir.store [[Z3]] to [[Z3_ADDR]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+  // RISCV64-DAG: [[Z3_ADDRC:%[0-9A-Za-z]+]] = fir.convert [[Z3_ADDR]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z3_VAL:%[0-9A-Za-z]+]] = fir.load [[Z3_ADDRC]] : !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z2_ADDR:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64-DAG: fir.store [[Z2]] to [[Z2_ADDR]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+  // RISCV64-DAG: [[Z2_ADDRC:%[0-9A-Za-z]+]] = fir.convert [[Z2_ADDR]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z2_VAL:%[0-9A-Za-z]+]] = fir.load [[Z2_ADDRC]] : !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z1_ADDR:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64-DAG: fir.store [[Z1]] to [[Z1_ADDR]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+  // RISCV64-DAG: [[Z1_ADDRC:%[0-9A-Za-z]+]] = fir.convert [[Z1_ADDR]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z1_VAL:%[0-9A-Za-z]+]] = fir.load [[Z1_ADDRC]] : !fir.ref<!fir.complex<4>>
+
+  // RISCV64-DAG: [[Z1_ADDRV:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64-DAG: [[Z1_ADDRC2:%[0-9A-Za-z]+]] = fir.convert [[Z1_ADDRV]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: fir.store [[Z1_VAL]] to [[Z1_ADDRC2]] : !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z1_RELOADED:%[0-9A-Za-z]+]] = fir.load [[Z1_ADDRV]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+  // RISCV64-DAG: [[Z2_ADDRV:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64-DAG: [[Z2_ADDRC2:%[0-9A-Za-z]+]] = fir.convert [[Z2_ADDRV]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: fir.store [[Z2_VAL]] to [[Z2_ADDRC2]] : !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z2_RELOADED:%[0-9A-Za-z]+]] = fir.load [[Z2_ADDRV]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+  // RISCV64-DAG: [[Z3_ADDRV:%[0-9A-Za-z]+]] = fir.alloca tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64-DAG: [[Z3_ADDRC2:%[0-9A-Za-z]+]] = fir.convert [[Z3_ADDRV]] : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: fir.store [[Z3_VAL]] to [[Z3_ADDRC2]] : !fir.ref<!fir.complex<4>>
+  // RISCV64-DAG: [[Z3_RELOADED:%[0-9A-Za-z]+]] = fir.load [[Z3_ADDRV]] : !fir.ref<tuple<!fir.real<4>, !fir.real<4>>>
+
+  // RISCV64: fir.call @calleemultipleparamscomplex4([[Z1_RELOADED]], [[Z2_RELOADED]], [[Z3_RELOADED]]) : (tuple<!fir.real<4>, !fir.real<4>>, tuple<!fir.real<4>, !fir.real<4>>, tuple<!fir.real<4>, !fir.real<4>>) -> ()
   fir.call @calleemultipleparamscomplex4(%z1, %z2, %z3) : (!fir.complex<4>, !fir.complex<4>, !fir.complex<4>) -> ()
   return
 }
@@ -406,6 +474,9 @@
 // SPARCV9-LABEL: func private @mlircomplexf32
 // SPARCV9-SAME: ([[A1:%[0-9A-Za-z]+]]: f32, [[B1:%[0-9A-Za-z]+]]: f32, [[A2:%[0-9A-Za-z]+]]: f32, [[B2:%[0-9A-Za-z]+]]: f32)
 // SPARCV9-SAME: -> tuple<f32, f32>
+// RISCV64-LABEL: func private @mlircomplexf32
+// RISCV64-SAME: ([[Z1:%[0-9A-Za-z]+]]: tuple<f32, f32>, [[Z2:%[0-9A-Za-z]+]]: tuple<f32, f32>)
+// RISCV64-SAME: -> tuple<f32, f32>
 func.func private @mlircomplexf32(%z1: complex<f32>, %z2: complex<f32>) -> complex<f32> {
 
   // I32-DAG: [[Z1_ADDR:%[0-9A-Za-z]+]] = fir.convert [[Z1]] : (!fir.ref<tuple<f32, f32>>) -> !fir.ref<complex<f32>>
@@ -489,6 +560,26 @@
   // SPARCV9-DAG: [[B2_EXTR:%[0-9A-Za-z]+]] = fir.extract_value [[Z2]], [1 : i32] : (complex<f32>) -> f32
 
   // SPARCV9: [[VAL:%[0-9A-Za-z]+]] = fir.call @mlircomplexf32([[A1_EXTR]], [[B1_EXTR]], [[A2_EXTR]], [[B2_EXTR]]) : (f32, f32, f32, f32) -> tuple<f32, f32>
+
+  // RISCV64-DAG: [[Z2_ADDR:%[0-9A-Za-z]+]] = fir.alloca tuple<f32, f32>
+  // RISCV64-DAG: fir.store [[Z2]] to [[Z2_ADDR]] : !fir.ref<tuple<f32, f32>>
+  // RISCV64-DAG: [[Z2_ADDRC:%[0-9A-Za-z]+]] = fir.convert [[Z2_ADDR]] : (!fir.ref<tuple<f32, f32>>) -> !fir.ref<complex<f32>>
+  // RISCV64-DAG: [[Z2_VAL:%[0-9A-Za-z]+]] = fir.load [[Z2_ADDRC]] : !fir.ref<complex<f32>>
+  // RISCV64-DAG: [[Z1_ADDR:%[0-9A-Za-z]+]] = fir.alloca tuple<f32, f32>
+  // RISCV64-DAG: fir.store [[Z1]] to [[Z1_ADDR]] : !fir.ref<tuple<f32, f32>>
+  // RISCV64-DAG: [[Z1_ADDRC:%[0-9A-Za-z]+]] = fir.convert [[Z1_ADDR]] : (!fir.ref<tuple<f32, f32>>) -> !fir.ref<complex<f32>>
+  // RISCV64-DAG: [[Z1_VAL:%[0-9A-Za-z]+]] = fir.load [[Z1_ADDRC]] : !fir.ref<complex<f32>>
+
+  // RISCV64-DAG: [[Z1_ADDRV:%[0-9A-Za-z]+]] = fir.alloca tuple<f32, f32>
+  // RISCV64-DAG: [[Z1_ADDRC2:%[0-9A-Za-z]+]] = fir.convert [[Z1_ADDRV]] : (!fir.ref<tuple<f32, f32>>) -> !fir.ref<complex<f32>>
+  // RISCV64-DAG: fir.store [[Z1_VAL]] to [[Z1_ADDRC2]] : !fir.ref<complex<f32>>
+  // RISCV64-DAG: [[Z1_RELOADED:%[0-9A-Za-z]+]] = fir.load [[Z1_ADDRV]] : !fir.ref<tuple<f32, f32>>
+  // RISCV64-DAG: [[Z2_ADDRV:%[0-9A-Za-z]+]] = fir.alloca tuple<f32, f32>
+  // RISCV64-DAG: [[Z2_ADDRC2:%[0-9A-Za-z]+]] = fir.convert [[Z2_ADDRV]] : (!fir.ref<tuple<f32, f32>>) -> !fir.ref<complex<f32>>
+  // RISCV64-DAG: fir.store [[Z2_VAL]] to [[Z2_ADDRC2]] : !fir.ref<complex<f32>>
+  // RISCV64-DAG: [[Z2_RELOADED:%[0-9A-Za-z]+]] = fir.load [[Z2_ADDRV]] :  !fir.ref<tuple<f32, f32>>
+
+  // RISCV64: [[VAL:%[0-9A-Za-z]+]] = fir.call @mlircomplexf32([[Z1_RELOADED]], [[Z2_RELOADED]])  : (tuple<f32, f32>, tuple<f32, f32>) -> tuple<f32, f32>
   %0 = fir.call @mlircomplexf32(%z1, %z2) : (complex<f32>, complex<f32>) -> complex<f32>
 
   // I32: [[ADDRI64:%[0-9A-Za-z]+]] = fir.alloca i64
@@ -540,6 +631,16 @@
   // SPARCV9: fir.store [[V]] to [[ADDRC_2]] : !fir.ref<complex<f32>>
   // SPARCV9: [[RES:%[0-9A-Za-z]+]] = fir.load [[ADDRT_2]] : !fir.ref<tuple<f32, f32>>
   // SPARCV9: return [[RES]] : tuple<f32, f32>
+
+  // RISCV64: [[ADDRT:%[0-9A-Za-z]+]] = fir.alloca tuple<f32, f32>
+  // RISCV64: fir.store [[VAL]] to [[ADDRT]] : !fir.ref<tuple<f32, f32>>
+  // RISCV64: [[ADDRC:%[0-9A-Za-z]+]] = fir.convert [[ADDRT]] : (!fir.ref<tuple<f32, f32>>) -> !fir.ref<complex<f32>>
+  // RISCV64: [[V:%[0-9A-Za-z]+]] = fir.load [[ADDRC]] : !fir.ref<complex<f32>>
+  // RISCV64: [[ADDRT_2:%[0-9A-Za-z]+]] = fir.alloca tuple<f32, f32>
+  // RISCV64: [[ADDRC_2:%[0-9A-Za-z]+]] = fir.convert [[ADDRT_2]] : (!fir.ref<tuple<f32, f32>>) -> !fir.ref<complex<f32>>
+  // RISCV64: fir.store [[V]] to [[ADDRC_2]] : !fir.ref<complex<f32>>
+  // RISCV64: [[RES:%[0-9A-Za-z]+]] = fir.load [[ADDRT_2]] : !fir.ref<tuple<f32, f32>>
+  // RISCV64: return [[RES]] : tuple<f32, f32>
   return %0 : complex<f32>
 }
 
@@ -549,11 +650,13 @@
 // AARCH64-LABEL: func @addrof()
 // PPC-LABEL: func @addrof()
 // SPARCV9-LABEL: func @addrof()
+// RISCV64-LABEL: func @addrof()
 func.func @addrof() {
   // I32: {{%.*}} = fir.address_of(@returncomplex4) : () -> i64
   // X64: {{%.*}} = fir.address_of(@returncomplex4) : () -> !fir.vector<2:!fir.real<4>>
   // AARCH64: {{%.*}} = fir.address_of(@returncomplex4) : () -> tuple<!fir.real<4>, !fir.real<4>>
   // PPC: {{%.*}} = fir.address_of(@returncomplex4) : () -> tuple<!fir.real<4>, !fir.real<4>>
+  // RISCV64: {{%.*}} = fir.address_of(@returncomplex4) : () -> tuple<!fir.real<4>, !fir.real<4>>
   %r = fir.address_of(@returncomplex4) : () -> !fir.complex<4>
 
   // I32: {{%.*}} = fir.address_of(@paramcomplex4) : (!fir.ref<tuple<!fir.real<4>, !fir.real<4>>>) -> ()
@@ -561,6 +664,7 @@
   // AARCH64: {{%.*}} = fir.address_of(@paramcomplex4) : (!fir.array<2x!fir.real<4>>) -> ()
   // PPC: {{%.*}} = fir.address_of(@paramcomplex4) : (!fir.real<4>, !fir.real<4>) -> ()
   // SPARCV9: {{%.*}} = fir.address_of(@paramcomplex4) : (!fir.real<4>, !fir.real<4>) -> ()
+  // RISCV64: {{%.*}} = fir.address_of(@paramcomplex4) : (tuple<!fir.real<4>, !fir.real<4>>) -> ()
   %p = fir.address_of(@paramcomplex4) : (!fir.complex<4>) -> ()
   return
 }