[RISCV] Remove tab character from test. Autogenerate CHECK lines. NFC

This was a test for an infinite loop so the CHECK lines don't really
matter, but they'd get generated the next time someone runs the script
on the file so might as well do it while I'm touching it.

diff --git a/llvm/test/CodeGen/RISCV/addimm-mulimm.ll b/llvm/test/CodeGen/RISCV/addimm-mulimm.ll
index adf0b98..86b1a5f 100644 (file)
--- a/llvm/test/CodeGen/RISCV/addimm-mulimm.ll
+++ b/llvm/test/CodeGen/RISCV/addimm-mulimm.ll
@@ -877,11 +877,20 @@ define i64 @mulneg3000_sub8990_c(i64 %x) {
 ; performed in RISCVISelLowering;:transformAddImmMulImm and
 ; DAGCombiner::visitMUL.
 define i1 @pr53831(i32 %x) {
+; RV32IMB-LABEL: pr53831:
+; RV32IMB:       # %bb.0:
+; RV32IMB-NEXT:    li a0, 0
+; RV32IMB-NEXT:    ret
+;
+; RV64IMB-LABEL: pr53831:
+; RV64IMB:       # %bb.0:
+; RV64IMB-NEXT:    li a0, 0
+; RV64IMB-NEXT:    ret
   %tmp0 = add i32 %x, 1
   %tmp1 = mul i32 %tmp0, 24
   %tmp2 = add i32 %tmp1, 1
   %tmp3 = mul i32 %x, 24
   %tmp4 = add i32 %tmp3, 2048
   %tmp5 = icmp eq i32 %tmp4, %tmp2
-       ret i1 %tmp5
+  ret i1 %tmp5
 }