diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/anyext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/anyext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/icmp.mir b/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/icmp.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/sext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/sext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/zext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/instruction-select/rvv/zext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-anyext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-anyext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-icmp.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-icmp.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-sext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-sext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-splatvector-rv32.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-splatvector-rv32.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-splatvector-rv64.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-splatvector-rv64.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-splatvector-s64-rv32.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-splatvector-s64-rv32.mir
@@ -0,0 +1,116 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple=riscv32 -mattr=+v -run-pass=legalizer %s -o - | FileCheck --check-prefix=HasF64 %s
+# RUN: llc -mtriple=riscv32 -mattr=+Zve64x -run-pass=legalizer %s -o - | FileCheck --check-prefix=NoF64 %s
+
+---
+name:            splatvector_nxv1i64
+legalized:       false
+tracksRegLiveness: true
+body:             |
+  bb.1:
+    ; HasF64-LABEL: name: splatvector_nxv1i64
+    ; HasF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[DEF]](s32), [[DEF1]](s32)
+    ; HasF64-NEXT: [[SPLAT_VECTOR:%[0-9]+]]:_(<vscale x 1 x s64>) = G_SPLAT_VECTOR [[MV]](s64)
+    ; HasF64-NEXT: $v8 = COPY [[SPLAT_VECTOR]](<vscale x 1 x s64>)
+    ; HasF64-NEXT: PseudoRET implicit $v8
+    ;
+    ; NoF64-LABEL: name: splatvector_nxv1i64
+    ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 1 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 1 x s64>) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 1 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: $v8 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 1 x s64>)
+    ; NoF64-NEXT: PseudoRET implicit $v8
+    %0:_(s64) = G_IMPLICIT_DEF
+    %1:_(<vscale x 1 x s64>) = G_SPLAT_VECTOR %0(s64)
+    $v8 = COPY %1(<vscale x 1 x s64>)
+    PseudoRET implicit $v8
+
+...
+---
+name:            splatvector_nxv2i64
+legalized:       false
+tracksRegLiveness: true
+body:             |
+  bb.1:
+    ; HasF64-LABEL: name: splatvector_nxv2i64
+    ; HasF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[DEF]](s32), [[DEF1]](s32)
+    ; HasF64-NEXT: [[SPLAT_VECTOR:%[0-9]+]]:_(<vscale x 2 x s64>) = G_SPLAT_VECTOR [[MV]](s64)
+    ; HasF64-NEXT: $v8m2 = COPY [[SPLAT_VECTOR]](<vscale x 2 x s64>)
+    ; HasF64-NEXT: PseudoRET implicit $v8m2
+    ;
+    ; NoF64-LABEL: name: splatvector_nxv2i64
+    ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 2 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 2 x s64>) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 2 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: $v8m2 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 2 x s64>)
+    ; NoF64-NEXT: PseudoRET implicit $v8m2
+    %0:_(s64) = G_IMPLICIT_DEF
+    %1:_(<vscale x 2 x s64>) = G_SPLAT_VECTOR %0(s64)
+    $v8m2 = COPY %1(<vscale x 2 x s64>)
+    PseudoRET implicit $v8m2
+
+...
+---
+name:            splatvector_nxv4i64
+legalized:       false
+tracksRegLiveness: true
+body:             |
+  bb.1:
+    ; HasF64-LABEL: name: splatvector_nxv4i64
+    ; HasF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[DEF]](s32), [[DEF1]](s32)
+    ; HasF64-NEXT: [[SPLAT_VECTOR:%[0-9]+]]:_(<vscale x 4 x s64>) = G_SPLAT_VECTOR [[MV]](s64)
+    ; HasF64-NEXT: $v8m4 = COPY [[SPLAT_VECTOR]](<vscale x 4 x s64>)
+    ; HasF64-NEXT: PseudoRET implicit $v8m4
+    ;
+    ; NoF64-LABEL: name: splatvector_nxv4i64
+    ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 4 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 4 x s64>) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 4 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: $v8m4 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 4 x s64>)
+    ; NoF64-NEXT: PseudoRET implicit $v8m4
+    %0:_(s64) = G_IMPLICIT_DEF
+    %1:_(<vscale x 4 x s64>) = G_SPLAT_VECTOR %0(s64)
+    $v8m4 = COPY %1(<vscale x 4 x s64>)
+    PseudoRET implicit $v8m4
+
+...
+---
+name:            splatvector_nxv8i64
+legalized:       false
+tracksRegLiveness: true
+body:             |
+  bb.1:
+    ; HasF64-LABEL: name: splatvector_nxv8i64
+    ; HasF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; HasF64-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[DEF]](s32), [[DEF1]](s32)
+    ; HasF64-NEXT: [[SPLAT_VECTOR:%[0-9]+]]:_(<vscale x 8 x s64>) = G_SPLAT_VECTOR [[MV]](s64)
+    ; HasF64-NEXT: $v8m8 = COPY [[SPLAT_VECTOR]](<vscale x 8 x s64>)
+    ; HasF64-NEXT: PseudoRET implicit $v8m8
+    ;
+    ; NoF64-LABEL: name: splatvector_nxv8i64
+    ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 8 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 8 x s64>) = G_IMPLICIT_DEF
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 8 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: $v8m8 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 8 x s64>)
+    ; NoF64-NEXT: PseudoRET implicit $v8m8
+    %0:_(s64) = G_IMPLICIT_DEF
+    %1:_(<vscale x 8 x s64>) = G_SPLAT_VECTOR %0(s64)
+    $v8m8 = COPY %1(<vscale x 8 x s64>)
+    PseudoRET implicit $v8m8
+
+...
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-zext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-zext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/anyext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/anyext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/icmp.mir b/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/icmp.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/sext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/sext.mir
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/zext.mir b/llvm/test/CodeGen/RISCV/GlobalISel/regbankselect/rvv/zext.mir
diff --git a/llvm/test/MachineVerifier/test_g_fcmp.mir b/llvm/test/MachineVerifier/test_g_fcmp.mir
@@ -24,17 +24,22 @@ body:             |
     %4:_(<2 x s32>) = G_IMPLICIT_DEF
     %5:_(s1) = G_FCMP floatpred(oeq), %3, %4
 
-    ; mismatched element count
+    ; mismatched fixed element count
     ; CHECK: Bad machine code: Generic vector icmp/fcmp must preserve number of
     %6:_(<2 x s32>) = G_IMPLICIT_DEF
     %7:_(<2 x s32>) = G_IMPLICIT_DEF
     %8:_(<4 x s1>) = G_FCMP floatpred(oeq), %6, %7
 
+    ; mismatched scalable element count
+    ; CHECK: Bad machine code: Generic vector icmp/fcmp must preserve number of
+    %9:_(<vscale x 2 x s32>) = G_IMPLICIT_DEF
+    %10:_(<vscale x 2 x s32>) = G_IMPLICIT_DEF
+    %11:_(<vscale x 4 x s1>) = G_FCMP floatpred(oeq), %9, %10
 
     ; mismatched scalar element type
     ; CHECK: *** Bad machine code: Type mismatch in generic instruction ***
-    %9:_(s32) = G_FCONSTANT float 0.0
-    %10:_(s64) = G_FCONSTANT float 1.0
-    %11:_(s1) = G_FCMP floatpred(oeq), %9, %10
+    %12:_(s32) = G_FCONSTANT float 0.0
+    %13:_(s64) = G_FCONSTANT float 1.0
+    %14:_(s1) = G_FCMP floatpred(oeq), %12, %13
 
 ...
diff --git a/llvm/test/MachineVerifier/test_g_icmp.mir b/llvm/test/MachineVerifier/test_g_icmp.mir
@@ -24,17 +24,22 @@ body:             |
     %4:_(<2 x s32>) = G_IMPLICIT_DEF
     %5:_(s1) = G_ICMP intpred(eq), %3, %4
 
-    ; mismatched element count
+    ; mismatched fixed element count
     ; CHECK: Bad machine code: Generic vector icmp/fcmp must preserve number of
     %6:_(<2 x s32>) = G_IMPLICIT_DEF
     %7:_(<2 x s32>) = G_IMPLICIT_DEF
     %8:_(<4 x s1>) = G_ICMP intpred(eq), %6, %7
 
+    ; mismatched scalable element count
+    ; CHECK: Bad machine code: Generic vector icmp/fcmp must preserve number of
+    %9:_(<vscale x 2 x s32>) = G_IMPLICIT_DEF
+    %10:_(<vscale x 2 x s32>) = G_IMPLICIT_DEF
+    %11:_(<vscale x 4 x s1>) = G_ICMP intpred(eq), %9, %10
 
     ; mismatched scalar element type
     ; CHECK: *** Bad machine code: Type mismatch in generic instruction ***
-    %9:_(s32) = G_CONSTANT i32 0
-    %10:_(s64) = G_CONSTANT i32 1
-    %11:_(s1) = G_ICMP intpred(eq), %9, %10
+    %12:_(s32) = G_CONSTANT i32 0
+    %13:_(s64) = G_CONSTANT i32 1
+    %14:_(s1) = G_ICMP intpred(eq), %12, %13
 
 ...