deps: update V8 to 7.1.302.28

PR-URL: https://github.com/nodejs/node/pull/23423
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

1 files changed, 44 insertions, 9 deletions

diff --git a/deps/v8/src/x64/assembler-x64.cc b/deps/v8/src/x64/assembler-x64.cc
index 27120e2d15..e52c35a532 100644
--- a/deps/v8/src/x64/assembler-x64.cc
+++ b/deps/v8/src/x64/assembler-x64.cc
@@ -21,6 +21,7 @@
 #include "src/code-stubs.h"
 #include "src/deoptimizer.h"
 #include "src/macro-assembler.h"
+#include "src/string-constants.h"
 #include "src/v8.h"
 
 namespace v8 {
@@ -82,7 +83,10 @@ void CpuFeatures::ProbeImpl(bool cross_compile) {
   // Only use statically determined features for cross compile (snapshot).
   if (cross_compile) return;
 
-  if (cpu.has_sse41() && FLAG_enable_sse4_1) supported_ |= 1u << SSE4_1;
+  if (cpu.has_sse41() && FLAG_enable_sse4_1) {
+    supported_ |= 1u << SSE4_1;
+    supported_ |= 1u << SSSE3;
+  }
   if (cpu.has_ssse3() && FLAG_enable_ssse3) supported_ |= 1u << SSSE3;
   if (cpu.has_sse3() && FLAG_enable_sse3) supported_ |= 1u << SSE3;
   // SAHF is not generally available in long mode.
@@ -335,6 +339,7 @@ bool Operand::AddressUsesRegister(Register reg) const {
 }
 
 void Assembler::AllocateAndInstallRequestedHeapObjects(Isolate* isolate) {
+  DCHECK_IMPLIES(isolate == nullptr, heap_object_requests_.empty());
   for (auto& request : heap_object_requests_) {
     Address pc = reinterpret_cast<Address>(buffer_) + request.offset();
     switch (request.kind()) {
@@ -349,6 +354,13 @@ void Assembler::AllocateAndInstallRequestedHeapObjects(Isolate* isolate) {
         UpdateCodeTarget(Memory<int32_t>(pc), request.code_stub()->GetCode());
         break;
       }
+      case HeapObjectRequest::kStringConstant: {
+        const StringConstantBase* str = request.string();
+        CHECK_NOT_NULL(str);
+        Handle<String> allocated = str->AllocateStringConstant(isolate);
+        Memory<Handle<Object>>(pc) = allocated;
+        break;
+      }
     }
   }
 }
@@ -449,6 +461,9 @@ Assembler::Assembler(const AssemblerOptions& options, void* buffer,
 
   ReserveCodeTargetSpace(100);
   reloc_info_writer.Reposition(buffer_ + buffer_size_, pc_);
+  if (CpuFeatures::IsSupported(SSE4_1)) {
+    EnableCpuFeature(SSSE3);
+  }
 }
 
 void Assembler::GetCode(Isolate* isolate, CodeDesc* desc) {
@@ -943,7 +958,7 @@ void Assembler::bswapq(Register dst) {
   emit(0xC8 + dst.low_bits());
 }
 
-void Assembler::bt(Operand dst, Register src) {
+void Assembler::btq(Operand dst, Register src) {
   EnsureSpace ensure_space(this);
   emit_rex_64(src, dst);
   emit(0x0F);
@@ -951,7 +966,7 @@ void Assembler::bt(Operand dst, Register src) {
   emit_operand(src, dst);
 }
 
-void Assembler::bts(Operand dst, Register src) {
+void Assembler::btsq(Operand dst, Register src) {
   EnsureSpace ensure_space(this);
   emit_rex_64(src, dst);
   emit(0x0F);
@@ -959,6 +974,23 @@ void Assembler::bts(Operand dst, Register src) {
   emit_operand(src, dst);
 }
 
+void Assembler::btsq(Register dst, Immediate imm8) {
+  EnsureSpace ensure_space(this);
+  emit_rex_64(dst);
+  emit(0x0F);
+  emit(0xBA);
+  emit_modrm(0x5, dst);
+  emit(imm8.value_);
+}
+
+void Assembler::btrq(Register dst, Immediate imm8) {
+  EnsureSpace ensure_space(this);
+  emit_rex_64(dst);
+  emit(0x0F);
+  emit(0xBA);
+  emit_modrm(0x6, dst);
+  emit(imm8.value_);
+}
 
 void Assembler::bsrl(Register dst, Register src) {
   EnsureSpace ensure_space(this);
@@ -1818,6 +1850,14 @@ void Assembler::movp_heap_number(Register dst, double value) {
   emitp(0, RelocInfo::EMBEDDED_OBJECT);
 }
 
+void Assembler::movp_string(Register dst, const StringConstantBase* str) {
+  EnsureSpace ensure_space(this);
+  emit_rex(dst, kPointerSize);
+  emit(0xB8 | dst.low_bits());
+  RequestHeapObject(HeapObjectRequest(str));
+  emitp(0, RelocInfo::EMBEDDED_OBJECT);
+}
+
 void Assembler::movq(Register dst, int64_t value, RelocInfo::Mode rmode) {
   if (constpool_.TryRecordEntry(value, rmode)) {
     // Emit rip-relative move with offset = 0
@@ -4962,12 +5002,7 @@ void Assembler::dq(Label* label) {
 // Relocation information implementations.
 
 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) {
-  DCHECK(!RelocInfo::IsNone(rmode));
-  if (options().disable_reloc_info_for_patching) return;
-  if (RelocInfo::IsOnlyForSerializer(rmode) &&
-      !options().record_reloc_info_for_serialization && !emit_debug_code()) {
-    return;
-  }
+  if (!ShouldRecordRelocInfo(rmode)) return;
   RelocInfo rinfo(reinterpret_cast<Address>(pc_), rmode, data, nullptr);
   reloc_info_writer.Write(&rinfo);
 }