88     return Zero;  in InputXRegisterOrZero()
1003       __ AmoSwapD(Zero, swap_src, addr, AqRl::kRelease);  in StoreSeqCst()
1005       __ AmoSwapW(Zero, swap_src, addr, AqRl::kRelease);  in StoreSeqCst()
1441     __ Mv(out, Zero);  in DivRemOneOrMinusOne()
1445         __ Subw(out, Zero, dividend);  in DivRemOneOrMinusOne()
1448         __ Sub(out, Zero, dividend);  in DivRemOneOrMinusOne()
2204         __ Min(rd, rs1, use_imm ? Zero : rs2);  in HandleBinaryOp()
2208         __ Max(rd, rs1, use_imm ? Zero : rs2);  in HandleBinaryOp()
3453   __ Stored(Zero, TR, GetExceptionTlsOffset());  in VisitClearException()
3907     __ Mv(out, Zero);  in VisitInstanceOf()
5169       false_reg = Zero;  in VisitSelect()
5176       true_reg = Zero;  in VisitSelect()
5178       true_reg = (false_reg == Zero) ? srs.AllocateXRegister()  in VisitSelect()
5198   if (false_reg == Zero) {  in VisitSelect()
5200   } else if (true_reg == Zero) {  in VisitSelect()
5203     DCHECK_NE(xor_reg, Zero);  in VisitSelect()
6012         Zero, SP, -static_cast<int32_t>(GetStackOverflowReservedBytes(InstructionSet::kRiscv64)));  in GenerateFrameEntry()
6056       __ Storew(Zero, SP, GetStackOffsetOfShouldDeoptimizeFlag());  in GenerateFrameEntry()
6165         gpr = Zero;  // Note: The scratch register allocated above shall not be used.  in MoveLocation()
6249       XRegister gpr = (value != 0) ? srs.AllocateXRegister() : Zero;  in MoveLocation()
6291   blocked_core_registers_[Zero] = true;  in SetupBlockedRegisters()
6434   __ Lw(Zero, obj.AsRegister<XRegister>(), 0);  in GenerateImplicitNullCheck()
7025   __ Sub(reg, Zero, reg);  // Negate the ref.  in PoisonHeapReference()
7030   __ Sub(reg, Zero, reg);  // Negate the ref.  in UnpoisonHeapReference()