[RISCV] Resolve CHECK prefix conflict in fixed-vectors-vwsll.ll. NFC

riscv32 and riscv64 generate different code for one test case so we need
RV32 and RV64 CHECK lines.

llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vwsll.ll

@@ -1,8 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
-; RUN: llc -mtriple=riscv32 -mattr=+v -verify-machineinstrs < %s | FileCheck %s
-; RUN: llc -mtriple=riscv64 -mattr=+v -verify-machineinstrs < %s | FileCheck %s
-; RUN: llc -mtriple=riscv32 -mattr=+v,+zvbb -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK-ZVBB
-; RUN: llc -mtriple=riscv64 -mattr=+v,+zvbb -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK-ZVBB
+; RUN: llc -mtriple=riscv32 -mattr=+v -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,RV32
+; RUN: llc -mtriple=riscv64 -mattr=+v -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,RV64
+; RUN: llc -mtriple=riscv32 -mattr=+v,+zvbb -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK-ZVBB,CHECK-ZVBB-RV32
+; RUN: llc -mtriple=riscv64 -mattr=+v,+zvbb -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK-ZVBB,CHECK-ZVBB-RV64
 
 ; ==============================================================================
 ; i32 -> i64
@@ -499,6 +499,55 @@ define <16 x i16> @vwsll_vv_v16i16_zext(<16 x i8> %a, <16 x i8> %b) {
 }
 
 define <16 x i16> @vwsll_vx_i64_v16i16(<16 x i8> %a, i64 %b) {
+; RV32-LABEL: vwsll_vx_i64_v16i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 8, e64, m4, ta, ma
+; RV32-NEXT:    vmv.v.x v16, a0
+; RV32-NEXT:    vsetivli zero, 16, e64, m8, ta, ma
+; RV32-NEXT:    vrgather.vi v24, v16, 0
+; RV32-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
+; RV32-NEXT:    vzext.vf2 v10, v8
+; RV32-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
+; RV32-NEXT:    vnsrl.wi v12, v24, 0
+; RV32-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
+; RV32-NEXT:    vnsrl.wi v8, v12, 0
+; RV32-NEXT:    vsll.vv v8, v10, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwsll_vx_i64_v16i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 16, e64, m8, ta, ma
+; RV64-NEXT:    vmv.v.x v16, a0
+; RV64-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
+; RV64-NEXT:    vzext.vf2 v10, v8
+; RV64-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
+; RV64-NEXT:    vnsrl.wi v12, v16, 0
+; RV64-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
+; RV64-NEXT:    vnsrl.wi v8, v12, 0
+; RV64-NEXT:    vsll.vv v8, v10, v8
+; RV64-NEXT:    ret
+;
+; CHECK-ZVBB-RV32-LABEL: vwsll_vx_i64_v16i16:
+; CHECK-ZVBB-RV32:       # %bb.0:
+; CHECK-ZVBB-RV32-NEXT:    vsetivli zero, 8, e64, m4, ta, ma
+; CHECK-ZVBB-RV32-NEXT:    vmv.v.x v16, a0
+; CHECK-ZVBB-RV32-NEXT:    vsetivli zero, 16, e64, m8, ta, ma
+; CHECK-ZVBB-RV32-NEXT:    vrgather.vi v24, v16, 0
+; CHECK-ZVBB-RV32-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
+; CHECK-ZVBB-RV32-NEXT:    vzext.vf2 v10, v8
+; CHECK-ZVBB-RV32-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
+; CHECK-ZVBB-RV32-NEXT:    vnsrl.wi v12, v24, 0
+; CHECK-ZVBB-RV32-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
+; CHECK-ZVBB-RV32-NEXT:    vnsrl.wi v8, v12, 0
+; CHECK-ZVBB-RV32-NEXT:    vsll.vv v8, v10, v8
+; CHECK-ZVBB-RV32-NEXT:    ret
+;
+; CHECK-ZVBB-RV64-LABEL: vwsll_vx_i64_v16i16:
+; CHECK-ZVBB-RV64:       # %bb.0:
+; CHECK-ZVBB-RV64-NEXT:    vsetivli zero, 16, e8, m1, ta, ma
+; CHECK-ZVBB-RV64-NEXT:    vwsll.vx v10, v8, a0
+; CHECK-ZVBB-RV64-NEXT:    vmv2r.v v8, v10
+; CHECK-ZVBB-RV64-NEXT:    ret
   %head = insertelement <8 x i64> poison, i64 %b, i32 0
   %splat = shufflevector <8 x i64> %head, <8 x i64> poison, <16 x i32> zeroinitializer
   %x = zext <16 x i8> %a to <16 x i16>