[mips] Fix last_call_pc_ when switching buffers

When switching buffers, the last_call_pc_ should be adjusted like
pc_, because the buffer's start address is changed.

Besides, add a missing BlockTrampolinePoolScope.

Change-Id: Iee6d9795a256e041bb2dbf7d8ca63f346a248539
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2504855Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#70823}

src/codegen/mips/assembler-mips.cc

@@ -3559,6 +3559,7 @@ void Assembler::GrowBuffer() {
   buffer_ = std::move(new_buffer);
   buffer_start_ = new_start;
   pc_ += pc_delta;
+  last_call_pc_ += pc_delta;
   reloc_info_writer.Reposition(reloc_info_writer.pos() + rc_delta,
                                reloc_info_writer.last_pc() + pc_delta);
 

src/codegen/mips64/assembler-mips64.cc

@@ -3755,6 +3755,7 @@ void Assembler::GrowBuffer() {
   buffer_ = std::move(new_buffer);
   buffer_start_ = new_start;
   pc_ += pc_delta;
+  last_call_pc_ += pc_delta;
   reloc_info_writer.Reposition(reloc_info_writer.pos() + rc_delta,
                                reloc_info_writer.last_pc() + pc_delta);
 

src/codegen/mips64/macro-assembler-mips64.cc

@@ -5885,6 +5885,7 @@ void TurboAssembler::ResetSpeculationPoisonRegister() {
 void TurboAssembler::CallForDeoptimization(Builtins::Name target, int,
                                            Label* exit, DeoptimizeKind kind,
                                            Label*) {
+  BlockTrampolinePoolScope block_trampoline_pool(this);
   Ld(t9,
      MemOperand(kRootRegister, IsolateData::builtin_entry_slot_offset(target)));
   Call(t9);