Update LoopVectorize/RISCV/truncate-to-minimal-bitwidth-cost.ll

Author: lukel97

llvm/test/Transforms/LoopVectorize/RISCV/truncate-to-minimal-bitwidth-cost.ll

@@ -169,7 +169,7 @@ define void @truncate_to_i1_used_by_branch(i8 %x, ptr %dst) #0 {
 ; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i8> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i8> poison, <vscale x 4 x i32> zeroinitializer
 ; CHECK-NEXT:    [[TMP6:%.*]] = trunc i32 [[N_VEC]] to i8
 ; CHECK-NEXT:    [[TMP7:%.*]] = trunc <vscale x 4 x i8> [[BROADCAST_SPLAT]] to <vscale x 4 x i1>
-; CHECK-NEXT:    [[TMP8:%.*]] = or <vscale x 4 x i1> trunc (<vscale x 4 x i8> splat (i8 23) to <vscale x 4 x i1>), [[TMP7]]
+; CHECK-NEXT:    [[TMP8:%.*]] = or <vscale x 4 x i1> splat (i1 true), [[TMP7]]
 ; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 4 x ptr> poison, ptr [[DST]], i64 0
 ; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <vscale x 4 x ptr> [[BROADCAST_SPLATINSERT1]], <vscale x 4 x ptr> poison, <vscale x 4 x i32> zeroinitializer
 ; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]