[RISCV] Add back -verify-machineinstrs to some tests. NFC

These were accidentally removed in 7c812ea

Author: lukel97

llvm/test/CodeGen/RISCV/rvv/vp-splice-mask-vectors.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -mtriple=riscv64 -mattr=+v < %s | FileCheck %s --check-prefix=NOVLDEP
-; RUN: llc -mtriple=riscv64 -mattr=+v,+vl-dependent-latency < %s | FileCheck %s --check-prefix=VLDEP
+; RUN: llc -mtriple=riscv64 -mattr=+v -verify-machineinstrs < %s | FileCheck %s --check-prefix=NOVLDEP
+; RUN: llc -mtriple=riscv64 -mattr=+v,+vl-dependent-latency -verify-machineinstrs < %s | FileCheck %s --check-prefix=VLDEP
 
 declare <vscale x 1 x i1> @llvm.experimental.vp.splice.nxv1i1(<vscale x 1 x i1>, <vscale x 1 x i1>, i32, <vscale x 1 x i1>, i32, i32)
 declare <vscale x 2 x i1> @llvm.experimental.vp.splice.nxv2i1(<vscale x 2 x i1>, <vscale x 2 x i1>, i32, <vscale x 2 x i1>, i32, i32)

llvm/test/CodeGen/RISCV/rvv/vp-splice.ll

@@ -1,12 +1,12 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -mtriple riscv64 -mattr=+f,+d,+v,+zfh,+zfbfmin,+zvfh,+zvfbfmin \
-; RUN:   < %s | FileCheck %s --check-prefixes=CHECK,NOVLDEP,ZVFH
+; RUN:   -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,NOVLDEP,ZVFH
 ; RUN: llc -mtriple riscv64 -mattr=+f,+d,+v,+zfh,+zfbfmin,+zvfhmin,+zvfbfmin \
-; RUN:   < %s | FileCheck %s --check-prefixes=CHECK,NOVLDEP,ZVFHMIN
+; RUN:   -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,NOVLDEP,ZVFHMIN
 ; RUN: llc -mtriple riscv64 -mattr=+f,+d,+v,+zfh,+zfbfmin,+zvfh,+zvfbfmin,+vl-dependent-latency \
-; RUN:   < %s | FileCheck %s --check-prefixes=CHECK,VLDEP,ZVFH
+; RUN:   -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,VLDEP,ZVFH
 ; RUN: llc -mtriple riscv64 -mattr=+f,+d,+v,+zfh,+zfbfmin,+zvfhmin,+zvfbfmin,+vl-dependent-latency \
-; RUN:   < %s | FileCheck %s --check-prefixes=CHECK,VLDEP,ZVFHMIN
+; RUN:   -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,VLDEP,ZVFHMIN
 
 define <vscale x 2 x i64> @test_vp_splice_nxv2i64(<vscale x 2 x i64> %va, <vscale x 2 x i64> %vb, i32 zeroext %evla, i32 zeroext %evlb) #0 {
 ; NOVLDEP-LABEL: test_vp_splice_nxv2i64: