Allow uint32 value on optimized frames if they are consumed by safe operations.

src/x64/macro-assembler-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2482 matching lines @@
     7,
     -1,
     8,
     -1,
     -1,
     9,
     10
 };
 
 
+void MacroAssembler::StoreToSafepointRegisterSlot(Register dst,
+                                                  const Immediate& imm) {
+  movq(SafepointRegisterSlot(dst), imm);
+}
+
+
 void MacroAssembler::StoreToSafepointRegisterSlot(Register dst, Register src) {
   movq(SafepointRegisterSlot(dst), src);
 }
 
 
 void MacroAssembler::LoadFromSafepointRegisterSlot(Register dst, Register src) {
   movq(dst, SafepointRegisterSlot(src));
 }
 
 
@@ skipping 338 matching lines @@
   movq(temp_xmm_reg, temp_reg);
   addsd(temp_xmm_reg, input_reg);
   cvttsd2si(result_reg, temp_xmm_reg);
   testl(result_reg, Immediate(0xFFFFFF00));
   j(zero, &done, Label::kNear);
   Set(result_reg, 255);
   bind(&done);
 }
 
 
+static double kUint32Bias =
+    static_cast<double>(static_cast<uint32_t>(0xFFFFFFFF)) + 1;
+
+
+void MacroAssembler::LoadUint32(XMMRegister dst,
+                                Register src,
+                                XMMRegister scratch) {
+  Label done;
+  cmpl(src, Immediate(0));
+  movq(kScratchRegister,
+       reinterpret_cast<int64_t>(&kUint32Bias),
+       RelocInfo::NONE);
+  movsd(scratch, Operand(kScratchRegister, 0));
+  cvtlsi2sd(dst, src);
+  j(not_sign, &done, Label::kNear);
+  addsd(dst, scratch);
+  bind(&done);
+}
+
+
 void MacroAssembler::LoadInstanceDescriptors(Register map,
                                              Register descriptors) {
   Register temp = descriptors;
   movq(temp, FieldOperand(map, Map::kTransitionsOrBackPointerOffset));
 
   Label ok, fail;
   CheckMap(temp,
            isolate()->factory()->fixed_array_map(),
            &fail,
            DONT_DO_SMI_CHECK);
@@ skipping 1630 matching lines @@
   bind(&check_prototype);
   movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset));
   cmpq(rcx, null_value);
   j(not_equal, &next);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64