[mips][interpreter] Encode BytecodeSizes as uint8_t for better cache locality

Port: 3965dcd5

Change-Id: I84064ebcffde490a44a341f0e65a3715746ca693
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2658655Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#72419}

src/builtins/mips/builtins-mips.cc

@@ -912,7 +912,7 @@ static void AdvanceBytecodeOffsetOrReturn(MacroAssembler* masm,
   __ Addu(scratch2, bytecode_array, bytecode_offset);
   __ lbu(bytecode, MemOperand(scratch2));
   __ Addu(bytecode_size_table, bytecode_size_table,
-          Operand(kIntSize * interpreter::Bytecodes::kBytecodeCount));
+          Operand(kByteSize * interpreter::Bytecodes::kBytecodeCount));
   __ jmp(&process_bytecode);
 
   __ bind(&extra_wide);
@@ -921,7 +921,7 @@ static void AdvanceBytecodeOffsetOrReturn(MacroAssembler* masm,
   __ Addu(scratch2, bytecode_array, bytecode_offset);
   __ lbu(bytecode, MemOperand(scratch2));
   __ Addu(bytecode_size_table, bytecode_size_table,
-          Operand(2 * kIntSize * interpreter::Bytecodes::kBytecodeCount));
+          Operand(2 * kByteSize * interpreter::Bytecodes::kBytecodeCount));
 
   __ bind(&process_bytecode);
 
@@ -944,8 +944,8 @@ static void AdvanceBytecodeOffsetOrReturn(MacroAssembler* masm,
 
   __ bind(&not_jump_loop);
   // Otherwise, load the size of the current bytecode and advance the offset.
-  __ Lsa(scratch2, bytecode_size_table, bytecode, 2);
-  __ lw(scratch2, MemOperand(scratch2));
+  __ Addu(scratch2, bytecode_size_table, bytecode);
+  __ lb(scratch2, MemOperand(scratch2));
   __ Addu(bytecode_offset, bytecode_offset, scratch2);
 
   __ bind(&end);

src/builtins/mips64/builtins-mips64.cc

@@ -928,7 +928,7 @@ static void AdvanceBytecodeOffsetOrReturn(MacroAssembler* masm,
   __ Daddu(scratch2, bytecode_array, bytecode_offset);
   __ Lbu(bytecode, MemOperand(scratch2));
   __ Daddu(bytecode_size_table, bytecode_size_table,
-           Operand(kIntSize * interpreter::Bytecodes::kBytecodeCount));
+           Operand(kByteSize * interpreter::Bytecodes::kBytecodeCount));
   __ jmp(&process_bytecode);
 
   __ bind(&extra_wide);
@@ -937,7 +937,7 @@ static void AdvanceBytecodeOffsetOrReturn(MacroAssembler* masm,
   __ Daddu(scratch2, bytecode_array, bytecode_offset);
   __ Lbu(bytecode, MemOperand(scratch2));
   __ Daddu(bytecode_size_table, bytecode_size_table,
-           Operand(2 * kIntSize * interpreter::Bytecodes::kBytecodeCount));
+           Operand(2 * kByteSize * interpreter::Bytecodes::kBytecodeCount));
 
   __ bind(&process_bytecode);
 
@@ -960,8 +960,8 @@ static void AdvanceBytecodeOffsetOrReturn(MacroAssembler* masm,
 
   __ bind(&not_jump_loop);
   // Otherwise, load the size of the current bytecode and advance the offset.
-  __ Dlsa(scratch2, bytecode_size_table, bytecode, 2);
-  __ Lw(scratch2, MemOperand(scratch2));
+  __ Daddu(scratch2, bytecode_size_table, bytecode);
+  __ Lb(scratch2, MemOperand(scratch2));
   __ Daddu(bytecode_offset, bytecode_offset, scratch2);
 
   __ bind(&end);