[riscv64] Fix 'Debug check failed: op->IsAnyLocationOperand().'

Bug: v8:12151

Change-Id: I51a6ebc1fb94b62acdc018cfcf6fed498f1c9d21
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3139576
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Commit-Queue: Ji Qiu <qiuji@iscas.ac.cn>
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: Ji Qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#76638}

src/compiler/backend/riscv64/code-generator-riscv64.cc

@@ -1951,7 +1951,7 @@ void AssembleBranchToLabels(CodeGenerator* gen, TurboAssembler* tasm,
     cc = FlagsConditionToConditionCmp(condition);
     if (i.InputOrZeroRegister(0) == zero_reg && IsInludeEqual(cc)) {
       __ Branch(tlabel);
-    } else {
+    } else if (i.InputOrZeroRegister(0) != zero_reg) {
       __ Branch(tlabel, cc, i.InputRegister(0), Operand(zero_reg));
     }
   } else if (instr->arch_opcode() == kArchStackPointerGreaterThan) {