[riscv64] Fix build error

Port e301d71f
 [compiler] Teach InstructionScheduler about protected memory accesses

Port a0ace8a8
 [wasm] Interpret table.grow result as 32 bit

Port [regexp] Fix UAF in RegExpMacroAssembler

Change-Id: Ieac5e4deae9c6bbf844788d927f5201b906495f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3189213
Commit-Queue: Ji Qiu <qiuji@iscas.ac.cn>
Reviewed-by: Ji Qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#77108}

src/codegen/riscv64/macro-assembler-riscv64.cc

@@ -4478,6 +4478,15 @@ void TurboAssembler::SmiUntag(Register dst, const MemOperand& src) {
   }
 }
 
+void TurboAssembler::SmiToInt32(Register smi) {
+  DCHECK(smi.Is64Bits());
+  if (FLAG_enable_slow_asserts) {
+    AssertSmi(smi);
+  }
+  DCHECK(SmiValuesAre32Bits() || SmiValuesAre31Bits());
+  SmiUntag(smi);
+}
+
 void TurboAssembler::JumpIfSmi(Register value, Label* smi_label) {
   DCHECK_EQ(0, kSmiTag);
   UseScratchRegisterScope temps(this);
@@ -4494,7 +4503,7 @@ void MacroAssembler::JumpIfNotSmi(Register value, Label* not_smi_label) {
   Branch(not_smi_label, ne, scratch, Operand(zero_reg));
 }
 
-void MacroAssembler::AssertNotSmi(Register object) {
+void TurboAssembler::AssertNotSmi(Register object) {
   if (FLAG_debug_code) {
     STATIC_ASSERT(kSmiTag == 0);
     DCHECK(object != kScratchReg);
@@ -4503,7 +4512,7 @@ void MacroAssembler::AssertNotSmi(Register object) {
   }
 }
 
-void MacroAssembler::AssertSmi(Register object) {
+void TurboAssembler::AssertSmi(Register object) {
   if (FLAG_debug_code) {
     STATIC_ASSERT(kSmiTag == 0);
     DCHECK(object != kScratchReg);

src/codegen/riscv64/macro-assembler-riscv64.h

@@ -492,6 +492,11 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   }
 
   void SmiUntag(Register reg) { SmiUntag(reg, reg); }
+  void SmiToInt32(Register smi);
+
+  // Enabled via --debug-code.
+  void AssertNotSmi(Register object);
+  void AssertSmi(Register object);
 
   int CalculateStackPassedDWords(int num_gp_arguments, int num_fp_arguments);
 

src/regexp/riscv64/regexp-macro-assembler-riscv64.cc

@@ -119,7 +119,6 @@ RegExpMacroAssemblerRISCV::RegExpMacroAssemblerRISCV(Isolate* isolate,
 }
 
 RegExpMacroAssemblerRISCV::~RegExpMacroAssemblerRISCV() {
-  delete masm_;
   // Unuse labels in case we throw away the assembler without calling GetCode.
   entry_label_.Unuse();
   start_label_.Unuse();
@@ -334,7 +333,7 @@ void RegExpMacroAssemblerRISCV::CheckNotBackReferenceIgnoreCase(
     __ li(a3, Operand(ExternalReference::isolate_address(masm_->isolate())));
 
     {
-      AllowExternalCallThatCantCauseGC scope(masm_);
+      AllowExternalCallThatCantCauseGC scope(masm_.get());
       ExternalReference function =
           unicode ? ExternalReference::re_case_insensitive_compare_unicode(
                         isolate())
@@ -645,7 +644,7 @@ Handle<HeapObject> RegExpMacroAssemblerRISCV::GetCode(Handle<String> source) {
 
     // Tell the system that we have a stack frame.  Because the type is MANUAL,
     // no is generated.
-    FrameScope scope(masm_, StackFrame::MANUAL);
+    FrameScope scope(masm_.get(), StackFrame::MANUAL);
 
     // Actually emit code to start a new stack frame.
     // Push arguments
@@ -1015,7 +1014,7 @@ void RegExpMacroAssemblerRISCV::PushBacktrack(Label* label) {
     int target = label->pos();
     __ li(a0, Operand(target + Code::kHeaderSize - kHeapObjectTag));
   } else {
-    Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_);
+    Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_.get());
     Label after_constant;
     __ BranchShort(&after_constant);
     int offset = masm_->pc_offset();

src/regexp/riscv64/regexp-macro-assembler-riscv64.h

@@ -196,7 +196,7 @@ class V8_EXPORT_PRIVATE RegExpMacroAssemblerRISCV
 
   Isolate* isolate() const { return masm_->isolate(); }
 
-  MacroAssembler* const masm_;
+  const std::unique_ptr<MacroAssembler> masm_;
   const NoRootArrayScope no_root_array_scope_;
 
   // Which mode to generate code for (Latin1 or UC16).