diff --git a/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp b/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
index 22cae389cc335..7f3510727dbce 100644
--- a/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
+++ b/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
@@ -183,6 +183,12 @@ RISCVLegalizerInfo::RISCVLegalizerInfo(const RISCVSubtarget &ST)
 
   getActionDefinitionsBuilder(G_BITREVERSE).maxScalar(0, sXLen).lower();
 
+  getActionDefinitionsBuilder(G_BITCAST).legalIf(
+      all(LegalityPredicates::any(typeIsLegalIntOrFPVec(0, IntOrFPVecTys, ST),
+                                  typeIsLegalBoolVec(0, BoolVecTys, ST)),
+          LegalityPredicates::any(typeIsLegalIntOrFPVec(1, IntOrFPVecTys, ST),
+                                  typeIsLegalBoolVec(1, BoolVecTys, ST))));
+
   auto &BSWAPActions = getActionDefinitionsBuilder(G_BSWAP);
   if (ST.hasStdExtZbb() || ST.hasStdExtZbkb())
     BSWAPActions.legalFor({sXLen}).clampScalar(0, sXLen, sXLen);
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-bitcast.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-bitcast.mir
new file mode 100644
index 0000000000000..7b5d56864a340
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-bitcast.mir
@@ -0,0 +1,356 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple=riscv32 -mattr=+v -run-pass=legalizer %s -o - | FileCheck %s
+# RUN: llc -mtriple=riscv64 -mattr=+v -run-pass=legalizer %s -o - | FileCheck %s
+
+---
+name:            bitcast_nxv1i8
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv1i8
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 1 x s8>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 8 x s1>) = G_BITCAST [[DEF]](<vscale x 1 x s8>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 8 x s1>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 1 x s8>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 8 x s1>) = G_BITCAST %0(<vscale x 1 x s8>)
+    $v8 = COPY %1(<vscale x 8 x s1>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv2i8
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv2i8
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 2 x s8>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 1 x s16>) = G_BITCAST [[DEF]](<vscale x 2 x s8>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 1 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 2 x s8>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 1 x s16>) = G_BITCAST %0(<vscale x 2 x s8>)
+    $v8 = COPY %1(<vscale x 1 x s16>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv4i8
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv4i8
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 4 x s8>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 2 x s16>) = G_BITCAST [[DEF]](<vscale x 4 x s8>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 2 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 4 x s8>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 2 x s16>) = G_BITCAST %0(<vscale x 4 x s8>)
+    $v8 = COPY %1(<vscale x 2 x s16>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv8i8
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv8i8
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 8 x s8>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 64 x s1>) = G_BITCAST [[DEF]](<vscale x 8 x s8>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 64 x s1>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 8 x s8>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 64 x s1>) = G_BITCAST %0(<vscale x 8 x s8>)
+    $v8 = COPY %1(<vscale x 64 x s1>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv16i8
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv16i8
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 16 x s8>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 4 x s32>) = G_BITCAST [[DEF]](<vscale x 16 x s8>)
+    ; CHECK-NEXT: $v8m2 = COPY [[BITCAST]](<vscale x 4 x s32>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m2
+    %0:_(<vscale x 16 x s8>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 4 x s32>) = G_BITCAST %0(<vscale x 16 x s8>)
+    $v8m2 = COPY %1(<vscale x 4 x s32>)
+    PseudoRET implicit $v8m2
+...
+---
+name:            bitcast_nxv32i8
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv32i8
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 32 x s8>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 16 x s16>) = G_BITCAST [[DEF]](<vscale x 32 x s8>)
+    ; CHECK-NEXT: $v8m4 = COPY [[BITCAST]](<vscale x 16 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m4
+    %0:_(<vscale x 32 x s8>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 16 x s16>) = G_BITCAST %0(<vscale x 32 x s8>)
+    $v8m4 = COPY %1(<vscale x 16 x s16>)
+    PseudoRET implicit $v8m4
+...
+---
+name:            bitcast_nxv64i8
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv64i8
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 64 x s8>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 8 x s64>) = G_BITCAST [[DEF]](<vscale x 64 x s8>)
+    ; CHECK-NEXT: $v8m8 = COPY [[BITCAST]](<vscale x 8 x s64>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m8
+    %0:_(<vscale x 64 x s8>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 8 x s64>) = G_BITCAST %0(<vscale x 64 x s8>)
+    $v8m8 = COPY %1(<vscale x 8 x s64>)
+    PseudoRET implicit $v8m8
+...
+---
+name:            bitcast_nxv1i16
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv1i16
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 1 x s16>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 2 x s8>) = G_BITCAST [[DEF]](<vscale x 1 x s16>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 2 x s8>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 1 x s16>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 2 x s8>) = G_BITCAST %0(<vscale x 1 x s16>)
+    $v8 = COPY %1(<vscale x 2 x s8>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv2i16
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv2i16
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 2 x s16>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 1 x s32>) = G_BITCAST [[DEF]](<vscale x 2 x s16>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 1 x s32>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 2 x s16>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 1 x s32>) = G_BITCAST %0(<vscale x 2 x s16>)
+    $v8 = COPY %1(<vscale x 1 x s32>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv4i16
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv4i16
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 4 x s16>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 1 x s64>) = G_BITCAST [[DEF]](<vscale x 4 x s16>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 1 x s64>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 4 x s16>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 1 x s64>) = G_BITCAST %0(<vscale x 4 x s16>)
+    $v8 = COPY %1(<vscale x 1 x s64>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv8i16
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv8i16
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 8 x s16>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 2 x s64>) = G_BITCAST [[DEF]](<vscale x 8 x s16>)
+    ; CHECK-NEXT: $v8m2 = COPY [[BITCAST]](<vscale x 2 x s64>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m2
+    %0:_(<vscale x 8 x s16>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 2 x s64>) = G_BITCAST %0(<vscale x 8 x s16>)
+    $v8m2 = COPY %1(<vscale x 2 x s64>)
+    PseudoRET implicit $v8m2
+...
+---
+name:            bitcast_nxv16i16
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv16i16
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 16 x s16>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 8 x s32>) = G_BITCAST [[DEF]](<vscale x 16 x s16>)
+    ; CHECK-NEXT: $v8m4 = COPY [[BITCAST]](<vscale x 8 x s32>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m4
+    %0:_(<vscale x 16 x s16>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 8 x s32>) = G_BITCAST %0(<vscale x 16 x s16>)
+    $v8m4 = COPY %1(<vscale x 8 x s32>)
+    PseudoRET implicit $v8m4
+...
+---
+name:            bitcast_nxv32i16
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv32i16
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 32 x s16>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 8 x s64>) = G_BITCAST [[DEF]](<vscale x 32 x s16>)
+    ; CHECK-NEXT: $v8m8 = COPY [[BITCAST]](<vscale x 8 x s64>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m8
+    %0:_(<vscale x 32 x s16>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 8 x s64>) = G_BITCAST %0(<vscale x 32 x s16>)
+    $v8m8 = COPY %1(<vscale x 8 x s64>)
+    PseudoRET implicit $v8m8
+...
+---
+name:            bitcast_nxv1i32
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv1i32
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 1 x s32>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 2 x s16>) = G_BITCAST [[DEF]](<vscale x 1 x s32>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 2 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 1 x s32>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 2 x s16>) = G_BITCAST %0(<vscale x 1 x s32>)
+    $v8 = COPY %1(<vscale x 2 x s16>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv2i32
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv2i32
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 2 x s32>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 4 x s16>) = G_BITCAST [[DEF]](<vscale x 2 x s32>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 4 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 2 x s32>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 4 x s16>) = G_BITCAST %0(<vscale x 2 x s32>)
+    $v8 = COPY %1(<vscale x 4 x s16>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv4i32
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv4i32
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 4 x s32>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 8 x s16>) = G_BITCAST [[DEF]](<vscale x 4 x s32>)
+    ; CHECK-NEXT: $v8m2 = COPY [[BITCAST]](<vscale x 8 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m2
+    %0:_(<vscale x 4 x s32>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 8 x s16>) = G_BITCAST %0(<vscale x 4 x s32>)
+    $v8m2 = COPY %1(<vscale x 8 x s16>)
+    PseudoRET implicit $v8m2
+...
+---
+name:            bitcast_nxv8i32
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv8i32
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 8 x s32>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 4 x s64>) = G_BITCAST [[DEF]](<vscale x 8 x s32>)
+    ; CHECK-NEXT: $v8m4 = COPY [[BITCAST]](<vscale x 4 x s64>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m4
+    %0:_(<vscale x 8 x s32>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 4 x s64>) = G_BITCAST %0(<vscale x 8 x s32>)
+    $v8m4 = COPY %1(<vscale x 4 x s64>)
+    PseudoRET implicit $v8m4
+...
+---
+name:            bitcast_nxv16i32
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv16i32
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 16 x s32>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 32 x s16>) = G_BITCAST [[DEF]](<vscale x 16 x s32>)
+    ; CHECK-NEXT: $v8m8 = COPY [[BITCAST]](<vscale x 32 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m8
+    %0:_(<vscale x 16 x s32>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 32 x s16>) = G_BITCAST %0(<vscale x 16 x s32>)
+    $v8m8 = COPY %1(<vscale x 32 x s16>)
+    PseudoRET implicit $v8m8
+...
+---
+name:            bitcast_nxv1i64
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv1i64
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 1 x s64>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 2 x s32>) = G_BITCAST [[DEF]](<vscale x 1 x s64>)
+    ; CHECK-NEXT: $v8 = COPY [[BITCAST]](<vscale x 2 x s32>)
+    ; CHECK-NEXT: PseudoRET implicit $v8
+    %0:_(<vscale x 1 x s64>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 2 x s32>) = G_BITCAST %0(<vscale x 1 x s64>)
+    $v8 = COPY %1(<vscale x 2 x s32>)
+    PseudoRET implicit $v8
+...
+---
+name:            bitcast_nxv2i64
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv2i64
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 2 x s64>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 4 x s32>) = G_BITCAST [[DEF]](<vscale x 2 x s64>)
+    ; CHECK-NEXT: $v8m2 = COPY [[BITCAST]](<vscale x 4 x s32>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m2
+    %0:_(<vscale x 2 x s64>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 4 x s32>) = G_BITCAST %0(<vscale x 2 x s64>)
+    $v8m2 = COPY %1(<vscale x 4 x s32>)
+    PseudoRET implicit $v8m2
+...
+---
+name:            bitcast_nxv4i64
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv4i64
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 4 x s64>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 16 x s16>) = G_BITCAST [[DEF]](<vscale x 4 x s64>)
+    ; CHECK-NEXT: $v8m4 = COPY [[BITCAST]](<vscale x 16 x s16>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m4
+    %0:_(<vscale x 4 x s64>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 16 x s16>) = G_BITCAST %0(<vscale x 4 x s64>)
+    $v8m4 = COPY %1(<vscale x 16 x s16>)
+    PseudoRET implicit $v8m4
+...
+---
+name:            bitcast_nxv8i64
+legalized:       true
+tracksRegLiveness: true
+body:             |
+  bb.0.entry:
+    ; CHECK-LABEL: name: bitcast_nxv8i64
+    ; CHECK: [[DEF:%[0-9]+]]:_(<vscale x 8 x s64>) = G_IMPLICIT_DEF
+    ; CHECK-NEXT: [[BITCAST:%[0-9]+]]:_(<vscale x 64 x s8>) = G_BITCAST [[DEF]](<vscale x 8 x s64>)
+    ; CHECK-NEXT: $v8m8 = COPY [[BITCAST]](<vscale x 64 x s8>)
+    ; CHECK-NEXT: PseudoRET implicit $v8m8
+    %0:_(<vscale x 8 x s64>) = G_IMPLICIT_DEF
+    %1:_(<vscale x 64 x s8>) = G_BITCAST %0(<vscale x 8 x s64>)
+    $v8m8 = COPY %1(<vscale x 64 x s8>)
+    PseudoRET implicit $v8m8
+...