diff --git a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
--- a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
@@ -143,7 +143,9 @@
     Operands.push_back(MaskedOff);
     CurOp += NF;
   }
-  Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+  SDValue Base;
+  SelectBaseAddr(Node->getOperand(CurOp++), Base);
+  Operands.push_back(Base); // Base pointer.
   if (IsStrided)
     Operands.push_back(Node->getOperand(CurOp++)); // Stride.
   if (IsMasked)
@@ -191,7 +193,9 @@
     Operands.push_back(MaskedOff);
     CurOp += NF;
   }
-  Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+  SDValue Base;
+  SelectBaseAddr(Node->getOperand(CurOp++), Base);
+  Operands.push_back(Base); // Base pointer.
   if (IsMasked)
     Operands.push_back(Node->getOperand(CurOp++)); // Mask.
   SDValue VL;
@@ -240,7 +244,9 @@
     Operands.push_back(MaskedOff);
     CurOp += NF;
   }
-  Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+  SDValue Base;
+  SelectBaseAddr(Node->getOperand(CurOp++), Base);
+  Operands.push_back(Base); // Base pointer.
   Operands.push_back(Node->getOperand(CurOp++)); // Index.
   MVT IndexVT = Operands.back()->getSimpleValueType(0);
   if (IsMasked)
@@ -294,7 +300,9 @@
   SmallVector<SDValue, 7> Operands;
   Operands.push_back(StoreVal);
   unsigned CurOp = 2 + NF;
-  Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+  SDValue Base;
+  SelectBaseAddr(Node->getOperand(CurOp++), Base);
+  Operands.push_back(Base); // Base pointer.
   if (IsStrided)
     Operands.push_back(Node->getOperand(CurOp++)); // Stride.
   if (IsMasked)
@@ -331,7 +339,9 @@
   SDValue StoreVal = createTuple(*CurDAG, Regs, NF, LMUL);
   Operands.push_back(StoreVal);
   unsigned CurOp = 2 + NF;
-  Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+  SDValue Base;
+  SelectBaseAddr(Node->getOperand(CurOp++), Base);
+  Operands.push_back(Base); // Base pointer.
   Operands.push_back(Node->getOperand(CurOp++)); // Index.
   MVT IndexVT = Operands.back()->getSimpleValueType(0);
   if (IsMasked)
@@ -619,7 +629,9 @@
       SmallVector<SDValue, 7> Operands;
       if (IsMasked)
         Operands.push_back(Node->getOperand(CurOp++));
-      Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+      SDValue Base;
+      SelectBaseAddr(Node->getOperand(CurOp++), Base);
+      Operands.push_back(Base); // Base pointer.
       Operands.push_back(Node->getOperand(CurOp++)); // Index.
       MVT IndexVT = Operands.back()->getSimpleValueType(0);
       if (IsMasked)
@@ -670,7 +682,9 @@
       SmallVector<SDValue, 7> Operands;
       if (IsMasked)
         Operands.push_back(Node->getOperand(CurOp++));
-      Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+      SDValue Base;
+      SelectBaseAddr(Node->getOperand(CurOp++), Base);
+      Operands.push_back(Base); // Base pointer.
       if (IsStrided)
         Operands.push_back(Node->getOperand(CurOp++)); // Stride.
       if (IsMasked)
@@ -708,7 +722,9 @@
       SmallVector<SDValue, 7> Operands;
       if (IsMasked)
         Operands.push_back(Node->getOperand(CurOp++));
-      Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+      SDValue Base;
+      SelectBaseAddr(Node->getOperand(CurOp++), Base);
+      Operands.push_back(Base); // Base pointer.
       if (IsMasked)
         Operands.push_back(Node->getOperand(CurOp++)); // Mask.
       SDValue VL;
@@ -836,7 +852,9 @@
       unsigned CurOp = 2;
       SmallVector<SDValue, 6> Operands;
       Operands.push_back(Node->getOperand(CurOp++)); // Store value.
-      Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+      SDValue Base;
+      SelectBaseAddr(Node->getOperand(CurOp++), Base);
+      Operands.push_back(Base); // Base pointer.
       Operands.push_back(Node->getOperand(CurOp++)); // Index.
       MVT IndexVT = Operands.back()->getSimpleValueType(0);
       if (IsMasked)
@@ -886,7 +904,9 @@
       unsigned CurOp = 2;
       SmallVector<SDValue, 6> Operands;
       Operands.push_back(Node->getOperand(CurOp++)); // Store value.
-      Operands.push_back(Node->getOperand(CurOp++)); // Base pointer.
+      SDValue Base;
+      SelectBaseAddr(Node->getOperand(CurOp++), Base);
+      Operands.push_back(Base); // Base pointer.
       if (IsStrided)
         Operands.push_back(Node->getOperand(CurOp++)); // Stride.
       if (IsMasked)
diff --git a/llvm/test/CodeGen/RISCV/rvv/frameindex-addr.ll b/llvm/test/CodeGen/RISCV/rvv/frameindex-addr.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/frameindex-addr.ll
@@ -0,0 +1,33 @@
+; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-v -verify-machineinstrs -stop-after=finalize-isel < %s | FileCheck %s
+
+; This test makes sure we match FrameIndex into the base address.
+; Done as a MIR test because eliminateFrameIndex will likely turn it
+; back into an addi.
+
+declare void @llvm.riscv.vse.nxv1i64(
+  <vscale x 1 x i64>,
+  <vscale x 1 x i64>*,
+  i64);
+
+define i64 @test(<vscale x 1 x i64> %0) nounwind {
+  ; CHECK-LABEL: name: test
+  ; CHECK: bb.0.entry:
+  ; CHECK:   liveins: $v8
+  ; CHECK:   [[COPY:%[0-9]+]]:vr = COPY $v8
+  ; CHECK:   [[ADDI:%[0-9]+]]:gpr = ADDI $x0, 1
+  ; CHECK:   dead %3:gpr = PseudoVSETVLI [[ADDI]], 88, implicit-def $vl, implicit-def $vtype
+  ; CHECK:   PseudoVSE64_V_M1 [[COPY]], %stack.0.a, $noreg, -1, implicit $vl, implicit $vtype
+  ; CHECK:   [[LD:%[0-9]+]]:gpr = LD %stack.0.a, 0 :: (dereferenceable load 8 from %ir.a)
+  ; CHECK:   $x10 = COPY [[LD]]
+  ; CHECK:   PseudoRET implicit $x10
+entry:
+  %a = alloca i64
+  %b = bitcast i64* %a to <vscale x 1 x i64>*
+  call void @llvm.riscv.vse.nxv1i64(
+    <vscale x 1 x i64> %0,
+    <vscale x 1 x i64>* %b,
+    i64 1)
+  %c = load i64, i64* %a
+  ret i64 %c
+}