diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -31,6 +31,7 @@
 #include "llvm/ADT/Twine.h"
 #include "llvm/Analysis/ConstantFolding.h"
 #include "llvm/Analysis/EHPersonalities.h"
+#include "llvm/Analysis/MemoryLocation.h"
 #include "llvm/Analysis/OptimizationRemarkEmitter.h"
 #include "llvm/BinaryFormat/COFF.h"
 #include "llvm/BinaryFormat/Dwarf.h"
@@ -847,12 +848,16 @@
     CommentOS << *Size << "-byte Reload\n";
   } else if ((Size = MI.getFoldedRestoreSize(TII))) {
     if (*Size)
-      CommentOS << *Size << "-byte Folded Reload\n";
+      (*Size == static_cast<unsigned>(MemoryLocation::UnknownSize)) ?
+        CommentOS << "Unknown size Folded Reload\n" :
+        CommentOS << *Size << "-byte Folded Reload\n";
   } else if ((Size = MI.getSpillSize(TII))) {
     CommentOS << *Size << "-byte Spill\n";
   } else if ((Size = MI.getFoldedSpillSize(TII))) {
     if (*Size)
-      CommentOS << *Size << "-byte Folded Spill\n";
+      (*Size == static_cast<unsigned>(MemoryLocation::UnknownSize)) ?
+        CommentOS << "Unknown size Folded Spill\n" :
+        CommentOS << *Size << "-byte Folded Spill\n";
   }
 
   // Check for spill-induced copies
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
--- a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
@@ -12,11 +12,13 @@
 
 #include "RISCVInstrInfo.h"
 #include "RISCV.h"
+#include "RISCVMachineFunctionInfo.h"
 #include "RISCVSubtarget.h"
 #include "RISCVTargetMachine.h"
 #include "Utils/RISCVMatInt.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/Analysis/MemoryLocation.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
@@ -141,12 +143,10 @@
     DL = I->getDebugLoc();
 
   MachineFunction *MF = MBB.getParent();
-  const MachineFrameInfo &MFI = MF->getFrameInfo();
-  MachineMemOperand *MMO = MF->getMachineMemOperand(
-      MachinePointerInfo::getFixedStack(*MF, FI), MachineMemOperand::MOStore,
-      MFI.getObjectSize(FI), MFI.getObjectAlign(FI));
+  MachineFrameInfo &MFI = MF->getFrameInfo();
 
   unsigned Opcode;
+  bool IsScalableVector = false;
   if (RISCV::GPRRegClass.hasSubClassEq(RC))
     Opcode = TRI->getRegSizeInBits(RISCV::GPRRegClass) == 32 ?
              RISCV::SW : RISCV::SD;
@@ -156,14 +156,42 @@
     Opcode = RISCV::FSW;
   else if (RISCV::FPR64RegClass.hasSubClassEq(RC))
     Opcode = RISCV::FSD;
-  else
+  else if (RISCV::VRRegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVSPILL_M1;
+    IsScalableVector = true;
+  } else if (RISCV::VRM2RegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVSPILL_M2;
+    IsScalableVector = true;
+  } else if (RISCV::VRM4RegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVSPILL_M4;
+    IsScalableVector = true;
+  } else if (RISCV::VRM8RegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVSPILL_M8;
+    IsScalableVector = true;
+  } else
     llvm_unreachable("Can't store this register to stack slot");
 
-  BuildMI(MBB, I, DL, get(Opcode))
-      .addReg(SrcReg, getKillRegState(IsKill))
-      .addFrameIndex(FI)
-      .addImm(0)
-      .addMemOperand(MMO);
+  if (IsScalableVector) {
+    MachineMemOperand *MMO = MF->getMachineMemOperand(
+        MachinePointerInfo::getFixedStack(*MF, FI), MachineMemOperand::MOStore,
+        MemoryLocation::UnknownSize, MFI.getObjectAlign(FI));
+
+    MFI.setStackID(FI, TargetStackID::RISCVVector);
+    BuildMI(MBB, I, DL, get(Opcode))
+        .addReg(SrcReg, getKillRegState(IsKill))
+        .addFrameIndex(FI)
+        .addMemOperand(MMO);
+  } else {
+    MachineMemOperand *MMO = MF->getMachineMemOperand(
+        MachinePointerInfo::getFixedStack(*MF, FI), MachineMemOperand::MOStore,
+        MFI.getObjectSize(FI), MFI.getObjectAlign(FI));
+
+    BuildMI(MBB, I, DL, get(Opcode))
+        .addReg(SrcReg, getKillRegState(IsKill))
+        .addFrameIndex(FI)
+        .addImm(0)
+        .addMemOperand(MMO);
+  }
 }
 
 void RISCVInstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
@@ -176,12 +204,10 @@
     DL = I->getDebugLoc();
 
   MachineFunction *MF = MBB.getParent();
-  const MachineFrameInfo &MFI = MF->getFrameInfo();
-  MachineMemOperand *MMO = MF->getMachineMemOperand(
-      MachinePointerInfo::getFixedStack(*MF, FI), MachineMemOperand::MOLoad,
-      MFI.getObjectSize(FI), MFI.getObjectAlign(FI));
+  MachineFrameInfo &MFI = MF->getFrameInfo();
 
   unsigned Opcode;
+  bool IsScalableVector = false;
   if (RISCV::GPRRegClass.hasSubClassEq(RC))
     Opcode = TRI->getRegSizeInBits(RISCV::GPRRegClass) == 32 ?
              RISCV::LW : RISCV::LD;
@@ -191,13 +217,40 @@
     Opcode = RISCV::FLW;
   else if (RISCV::FPR64RegClass.hasSubClassEq(RC))
     Opcode = RISCV::FLD;
-  else
+  else if (RISCV::VRRegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVRELOAD_M1;
+    IsScalableVector = true;
+  } else if (RISCV::VRM2RegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVRELOAD_M2;
+    IsScalableVector = true;
+  } else if (RISCV::VRM4RegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVRELOAD_M4;
+    IsScalableVector = true;
+  } else if (RISCV::VRM8RegClass.hasSubClassEq(RC)) {
+    Opcode = RISCV::PseudoVRELOAD_M8;
+    IsScalableVector = true;
+  } else
     llvm_unreachable("Can't load this register from stack slot");
 
-  BuildMI(MBB, I, DL, get(Opcode), DstReg)
-    .addFrameIndex(FI)
-    .addImm(0)
-    .addMemOperand(MMO);
+  if (IsScalableVector) {
+    MachineMemOperand *MMO = MF->getMachineMemOperand(
+        MachinePointerInfo::getFixedStack(*MF, FI), MachineMemOperand::MOLoad,
+        MemoryLocation::UnknownSize, MFI.getObjectAlign(FI));
+
+    MFI.setStackID(FI, TargetStackID::RISCVVector);
+    BuildMI(MBB, I, DL, get(Opcode), DstReg)
+        .addFrameIndex(FI)
+        .addMemOperand(MMO);
+  } else {
+    MachineMemOperand *MMO = MF->getMachineMemOperand(
+        MachinePointerInfo::getFixedStack(*MF, FI), MachineMemOperand::MOLoad,
+        MFI.getObjectSize(FI), MFI.getObjectAlign(FI));
+
+    BuildMI(MBB, I, DL, get(Opcode), DstReg)
+        .addFrameIndex(FI)
+        .addImm(0)
+        .addMemOperand(MMO);
+  }
 }
 
 void RISCVInstrInfo::movImm(MachineBasicBlock &MBB,
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td b/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td
@@ -1662,6 +1662,20 @@
   def PseudoReadVLENB : Pseudo<(outs GPR:$rd), (ins), []>;
 }
 
+let hasSideEffects = 0, mayLoad = 0, mayStore = 1, isCodeGenOnly = 1 in {
+  def PseudoVSPILL_M1 : VPseudo<VS1R_V, V_M1, (outs), (ins VR:$rs1, GPR:$rs2)>;
+  def PseudoVSPILL_M2 : VPseudo<VS2R_V, V_M2, (outs), (ins VRM2:$rs1, GPR:$rs2)>;
+  def PseudoVSPILL_M4 : VPseudo<VS4R_V, V_M4, (outs), (ins VRM4:$rs1, GPR:$rs2)>;
+  def PseudoVSPILL_M8 : VPseudo<VS8R_V, V_M8, (outs), (ins VRM8:$rs1, GPR:$rs2)>;
+}
+
+let hasSideEffects = 0, mayLoad = 1, mayStore = 0, isCodeGenOnly = 1 in {
+  def PseudoVRELOAD_M1 : VPseudo<VL1RE8_V, V_M1, (outs VR:$rs1), (ins GPR:$rs2)>;
+  def PseudoVRELOAD_M2 : VPseudo<VL2RE8_V, V_M2, (outs VRM2:$rs1), (ins GPR:$rs2)>;
+  def PseudoVRELOAD_M4 : VPseudo<VL4RE8_V, V_M4, (outs VRM4:$rs1), (ins GPR:$rs2)>;
+  def PseudoVRELOAD_M8 : VPseudo<VL8RE8_V, V_M8, (outs VRM8:$rs1), (ins GPR:$rs2)>;
+}
+
 //===----------------------------------------------------------------------===//
 // 6. Configuration-Setting Instructions
 //===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp b/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp
--- a/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp
@@ -76,6 +76,7 @@
 BitVector RISCVRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   const RISCVFrameLowering *TFI = getFrameLowering(MF);
   BitVector Reserved(getNumRegs());
+  const RISCVSubtarget &Subtarget = MF.getSubtarget<RISCVSubtarget>();
 
   // Mark any registers requested to be reserved as such
   for (size_t Reg = 0; Reg < getNumRegs(); Reg++) {
@@ -88,7 +89,12 @@
   markSuperRegs(Reserved, RISCV::X2); // sp
   markSuperRegs(Reserved, RISCV::X3); // gp
   markSuperRegs(Reserved, RISCV::X4); // tp
-  if (TFI->hasFP(MF))
+  // If there is need to spill RVV object as register allocation, SP will
+  // be adjusted by a variable length at runtime. We need to reserve FP to
+  // access callee-saved registers. However, we have no information for RVV
+  // spilling after ISel lowering. Here, we reserve FP if V extension is
+  // enabled. See llvm/test/CodeGen/RISCV/rvv/spill-vector-csr.ll.
+  if (TFI->hasFP(MF) || Subtarget.hasStdExtV())
     markSuperRegs(Reserved, RISCV::X8); // fp
   // Reserve the base register if we need to realign the stack and allocate
   // variable-sized objects at runtime.
diff --git a/llvm/test/CodeGen/RISCV/rvv/spill-vector-csr.ll b/llvm/test/CodeGen/RISCV/rvv/spill-vector-csr.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/spill-vector-csr.ll
@@ -0,0 +1,87 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-v -mattr=+d -O0 < %s \
+; RUN:    | FileCheck --check-prefix=SPILL-O0 %s
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-v -mattr=+d -O2 < %s \
+; RUN:    | FileCheck --check-prefix=SPILL-O2 %s
+
+@.str = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+
+define <vscale x 1 x double> @foo(<vscale x 1 x double> %a, <vscale x 1 x double> %b, <vscale x 1 x double> %c, i64 %gvl) nounwind
+; SPILL-O0-LABEL: foo:
+; SPILL-O0:       # %bb.0:
+; SPILL-O0-NEXT:    addi sp, sp, -48
+; SPILL-O0-NEXT:    sd ra, 40(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    sd s0, 32(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    addi s0, sp, 48
+; SPILL-O0-NEXT:    csrr a1, vlenb
+; SPILL-O0-NEXT:    sub sp, sp, a1
+; SPILL-O0-NEXT:    sd sp, -32(s0) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    sub sp, sp, a1
+; SPILL-O0-NEXT:    sd sp, -40(s0) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    sd a0, -24(s0) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    ld a1, -32(s0)
+; SPILL-O0-NEXT:    vs1r.v v16, (a1) # Unknown size Folded Spill
+; SPILL-O0-NEXT:    vsetvli a0, a0, e64,m1,ta,mu
+; SPILL-O0-NEXT:    vfadd.vv v25, v16, v17
+; SPILL-O0-NEXT:    ld a0, -40(s0)
+; SPILL-O0-NEXT:    vs1r.v v25, (a0) # Unknown size Folded Spill
+; SPILL-O0-NEXT:    lui a0, %hi(.L.str)
+; SPILL-O0-NEXT:    addi a0, a0, %lo(.L.str)
+; SPILL-O0-NEXT:    call puts@plt
+; SPILL-O0-NEXT:    ld a1, -40(s0)
+; SPILL-O0-NEXT:    vl1r.v v25, (a1) # Unknown size Folded Reload
+; SPILL-O0-NEXT:    ld a1, -32(s0)
+; SPILL-O0-NEXT:    vl1r.v v16, (a1) # Unknown size Folded Reload
+; SPILL-O0-NEXT:    # kill: def $x11 killed $x10
+; SPILL-O0-NEXT:    ld a0, -24(s0) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    vsetvli a0, a0, e64,m1,ta,mu
+; SPILL-O0-NEXT:    vfadd.vv v16, v16, v25
+; SPILL-O0-NEXT:    addi sp, s0, -48
+; SPILL-O0-NEXT:    ld s0, 32(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    ld ra, 40(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    addi sp, sp, 48
+; SPILL-O0-NEXT:    ret
+;
+; SPILL-O2-LABEL: foo:
+; SPILL-O2:       # %bb.0:
+; SPILL-O2-NEXT:    addi sp, sp, -48
+; SPILL-O2-NEXT:    sd ra, 40(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    sd s0, 32(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    sd s1, 24(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    addi s0, sp, 48
+; SPILL-O2-NEXT:    csrr a1, vlenb
+; SPILL-O2-NEXT:    sub sp, sp, a1
+; SPILL-O2-NEXT:    sd sp, -32(s0) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    sub sp, sp, a1
+; SPILL-O2-NEXT:    sd sp, -40(s0) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    mv s1, a0
+; SPILL-O2-NEXT:    ld a1, -40(s0)
+; SPILL-O2-NEXT:    vs1r.v v16, (a1) # Unknown size Folded Spill
+; SPILL-O2-NEXT:    vsetvli a0, a0, e64,m1,ta,mu
+; SPILL-O2-NEXT:    vfadd.vv v25, v16, v17
+; SPILL-O2-NEXT:    ld a0, -32(s0)
+; SPILL-O2-NEXT:    vs1r.v v25, (a0) # Unknown size Folded Spill
+; SPILL-O2-NEXT:    lui a0, %hi(.L.str)
+; SPILL-O2-NEXT:    addi a0, a0, %lo(.L.str)
+; SPILL-O2-NEXT:    call puts@plt
+; SPILL-O2-NEXT:    vsetvli a0, s1, e64,m1,ta,mu
+; SPILL-O2-NEXT:    ld a0, -32(s0)
+; SPILL-O2-NEXT:    vl1r.v v25, (a0) # Unknown size Folded Reload
+; SPILL-O2-NEXT:    ld a0, -40(s0)
+; SPILL-O2-NEXT:    vl1r.v v26, (a0) # Unknown size Folded Reload
+; SPILL-O2-NEXT:    vfadd.vv v16, v26, v25
+; SPILL-O2-NEXT:    addi sp, s0, -48
+; SPILL-O2-NEXT:    ld s1, 24(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    ld s0, 32(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    ld ra, 40(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    addi sp, sp, 48
+; SPILL-O2-NEXT:    ret
+{
+   %x = call <vscale x 1 x double> @llvm.riscv.vfadd.nxv1f64.nxv1f64(<vscale x 1 x double> %a, <vscale x 1 x double> %b, i64 %gvl)
+   %call = call signext i32 @puts(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
+   %z = call <vscale x 1 x double> @llvm.riscv.vfadd.nxv1f64.nxv1f64(<vscale x 1 x double> %a, <vscale x 1 x double> %x, i64 %gvl)
+   ret <vscale x 1 x double> %z
+}
+
+declare <vscale x 1 x double> @llvm.riscv.vfadd.nxv1f64.nxv1f64(<vscale x 1 x double> %a, <vscale x 1 x double> %b, i64 %gvl)
+declare i32 @puts(i8*);
diff --git a/llvm/test/CodeGen/RISCV/rvv/spill-vector.ll b/llvm/test/CodeGen/RISCV/rvv/spill-vector.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/spill-vector.ll
@@ -0,0 +1,207 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-v -O0 < %s \
+; RUN:    | FileCheck --check-prefix=SPILL-O0 %s
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-v -O2 < %s \
+; RUN:    | FileCheck --check-prefix=SPILL-O2 %s
+
+define <vscale x 1 x i64> @spill_lmul_1(<vscale x 1 x i64> %va) nounwind {
+; SPILL-O0-LABEL: spill_lmul_1:
+; SPILL-O0:       # %bb.0: # %entry
+; SPILL-O0-NEXT:    addi sp, sp, -32
+; SPILL-O0-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    addi s0, sp, 32
+; SPILL-O0-NEXT:    csrr a0, vlenb
+; SPILL-O0-NEXT:    sub sp, sp, a0
+; SPILL-O0-NEXT:    sd sp, -24(s0) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vs1r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O0-NEXT:    #APP
+; SPILL-O0-NEXT:    #NO_APP
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vl1r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O0-NEXT:    addi sp, s0, -32
+; SPILL-O0-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    addi sp, sp, 32
+; SPILL-O0-NEXT:    ret
+;
+; SPILL-O2-LABEL: spill_lmul_1:
+; SPILL-O2:       # %bb.0: # %entry
+; SPILL-O2-NEXT:    addi sp, sp, -32
+; SPILL-O2-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    addi s0, sp, 32
+; SPILL-O2-NEXT:    csrr a0, vlenb
+; SPILL-O2-NEXT:    sub sp, sp, a0
+; SPILL-O2-NEXT:    sd sp, -24(s0) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vs1r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O2-NEXT:    #APP
+; SPILL-O2-NEXT:    #NO_APP
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vl1r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O2-NEXT:    addi sp, s0, -32
+; SPILL-O2-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    addi sp, sp, 32
+; SPILL-O2-NEXT:    ret
+entry:
+  call void asm sideeffect "",
+  "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()
+
+  ret <vscale x 1 x i64> %va
+}
+
+define <vscale x 2 x i64> @spill_lmul_2(<vscale x 2 x i64> %va) nounwind {
+; SPILL-O0-LABEL: spill_lmul_2:
+; SPILL-O0:       # %bb.0: # %entry
+; SPILL-O0-NEXT:    addi sp, sp, -32
+; SPILL-O0-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    addi s0, sp, 32
+; SPILL-O0-NEXT:    csrr a0, vlenb
+; SPILL-O0-NEXT:    slli a0, a0, 1
+; SPILL-O0-NEXT:    sub sp, sp, a0
+; SPILL-O0-NEXT:    sd sp, -24(s0) # 16-byte Folded Spill
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vs2r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O0-NEXT:    #APP
+; SPILL-O0-NEXT:    #NO_APP
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vl2r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O0-NEXT:    addi sp, s0, -32
+; SPILL-O0-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    addi sp, sp, 32
+; SPILL-O0-NEXT:    ret
+;
+; SPILL-O2-LABEL: spill_lmul_2:
+; SPILL-O2:       # %bb.0: # %entry
+; SPILL-O2-NEXT:    addi sp, sp, -32
+; SPILL-O2-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    addi s0, sp, 32
+; SPILL-O2-NEXT:    csrr a0, vlenb
+; SPILL-O2-NEXT:    slli a0, a0, 1
+; SPILL-O2-NEXT:    sub sp, sp, a0
+; SPILL-O2-NEXT:    sd sp, -24(s0) # 16-byte Folded Spill
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vs2r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O2-NEXT:    #APP
+; SPILL-O2-NEXT:    #NO_APP
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vl2r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O2-NEXT:    addi sp, s0, -32
+; SPILL-O2-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    addi sp, sp, 32
+; SPILL-O2-NEXT:    ret
+entry:
+  call void asm sideeffect "",
+  "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()
+
+  ret <vscale x 2 x i64> %va
+}
+
+define <vscale x 4 x i64> @spill_lmul_4(<vscale x 4 x i64> %va) nounwind {
+; SPILL-O0-LABEL: spill_lmul_4:
+; SPILL-O0:       # %bb.0: # %entry
+; SPILL-O0-NEXT:    addi sp, sp, -32
+; SPILL-O0-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    addi s0, sp, 32
+; SPILL-O0-NEXT:    csrr a0, vlenb
+; SPILL-O0-NEXT:    slli a0, a0, 2
+; SPILL-O0-NEXT:    sub sp, sp, a0
+; SPILL-O0-NEXT:    sd sp, -24(s0) # 32-byte Folded Spill
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vs4r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O0-NEXT:    #APP
+; SPILL-O0-NEXT:    #NO_APP
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vl4r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O0-NEXT:    addi sp, s0, -32
+; SPILL-O0-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    addi sp, sp, 32
+; SPILL-O0-NEXT:    ret
+;
+; SPILL-O2-LABEL: spill_lmul_4:
+; SPILL-O2:       # %bb.0: # %entry
+; SPILL-O2-NEXT:    addi sp, sp, -32
+; SPILL-O2-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    addi s0, sp, 32
+; SPILL-O2-NEXT:    csrr a0, vlenb
+; SPILL-O2-NEXT:    slli a0, a0, 2
+; SPILL-O2-NEXT:    sub sp, sp, a0
+; SPILL-O2-NEXT:    sd sp, -24(s0) # 32-byte Folded Spill
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vs4r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O2-NEXT:    #APP
+; SPILL-O2-NEXT:    #NO_APP
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vl4r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O2-NEXT:    addi sp, s0, -32
+; SPILL-O2-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    addi sp, sp, 32
+; SPILL-O2-NEXT:    ret
+entry:
+  call void asm sideeffect "",
+  "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()
+
+  ret <vscale x 4 x i64> %va
+}
+
+define <vscale x 8 x i64> @spill_lmul_8(<vscale x 8 x i64> %va) nounwind {
+; SPILL-O0-LABEL: spill_lmul_8:
+; SPILL-O0:       # %bb.0: # %entry
+; SPILL-O0-NEXT:    addi sp, sp, -32
+; SPILL-O0-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O0-NEXT:    addi s0, sp, 32
+; SPILL-O0-NEXT:    csrr a0, vlenb
+; SPILL-O0-NEXT:    slli a0, a0, 3
+; SPILL-O0-NEXT:    sub sp, sp, a0
+; SPILL-O0-NEXT:    sd sp, -24(s0) # 64-byte Folded Spill
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vs8r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O0-NEXT:    #APP
+; SPILL-O0-NEXT:    #NO_APP
+; SPILL-O0-NEXT:    ld a0, -24(s0)
+; SPILL-O0-NEXT:    vl8r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O0-NEXT:    addi sp, s0, -32
+; SPILL-O0-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O0-NEXT:    addi sp, sp, 32
+; SPILL-O0-NEXT:    ret
+;
+; SPILL-O2-LABEL: spill_lmul_8:
+; SPILL-O2:       # %bb.0: # %entry
+; SPILL-O2-NEXT:    addi sp, sp, -32
+; SPILL-O2-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; SPILL-O2-NEXT:    addi s0, sp, 32
+; SPILL-O2-NEXT:    csrr a0, vlenb
+; SPILL-O2-NEXT:    slli a0, a0, 3
+; SPILL-O2-NEXT:    sub sp, sp, a0
+; SPILL-O2-NEXT:    sd sp, -24(s0) # 64-byte Folded Spill
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vs8r.v v16, (a0) # Unknown size Folded Spill
+; SPILL-O2-NEXT:    #APP
+; SPILL-O2-NEXT:    #NO_APP
+; SPILL-O2-NEXT:    ld a0, -24(s0)
+; SPILL-O2-NEXT:    vl8r.v v16, (a0) # Unknown size Folded Reload
+; SPILL-O2-NEXT:    addi sp, s0, -32
+; SPILL-O2-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; SPILL-O2-NEXT:    addi sp, sp, 32
+; SPILL-O2-NEXT:    ret
+entry:
+  call void asm sideeffect "",
+  "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()
+
+  ret <vscale x 8 x i64> %va
+}