PPC: pass a scratch reg when using register_location

Change-Id: I43e4a4cadc60e958d6c9d80e725a49a3e36d8ba9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3797832Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#82146}

src/regexp/ppc/regexp-macro-assembler-ppc.cc

@@ -1139,7 +1139,7 @@ void RegExpMacroAssemblerPPC::WriteStackPointerToRegister(int reg) {
   __ mov(r4, Operand(ref));
   __ LoadU64(r4, MemOperand(r4));
   __ SubS64(r3, backtrack_stackpointer(), r4);
-  __ StoreU64(r3, register_location(reg));
+  __ StoreU64(r3, register_location(reg), r0);
 }
 
 void RegExpMacroAssemblerPPC::ReadStackPointerFromRegister(int reg) {
@@ -1147,7 +1147,7 @@ void RegExpMacroAssemblerPPC::ReadStackPointerFromRegister(int reg) {
       ExternalReference::address_of_regexp_stack_memory_top_address(isolate());
   __ mov(r3, Operand(ref));
   __ LoadU64(r3, MemOperand(r3));
-  __ LoadU64(backtrack_stackpointer(), register_location(reg));
+  __ LoadU64(backtrack_stackpointer(), register_location(reg), r0);
   __ AddS64(backtrack_stackpointer(), backtrack_stackpointer(), r3);
 }