MIPS: Fixed FPU rounding checks and related errors in the Simulator.

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index bd585946f11d546bed602bd8d338b4ca1f0f1c5c..8a9029cb952703f29612a90244989a7b986c222f 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -193,6 +193,7 @@ void MacroAssembler::RecordWriteHelper(Register object,
   sw(scratch, MemOperand(object, Page::kDirtyFlagOffset));
 }
 
+
 // Push and pop all registers that can hold pointers.
 void MacroAssembler::PushSafepointRegisters() {
   // Safepoints expect a block of kNumSafepointRegisters values on the
@@ -203,12 +204,14 @@ void MacroAssembler::PushSafepointRegisters() {
   MultiPush(kSafepointSavedRegisters);
 }
 
+
 void MacroAssembler::PopSafepointRegisters() {
   const int num_unsaved = kNumSafepointRegisters - kNumSafepointSavedRegisters;
   MultiPop(kSafepointSavedRegisters);
   Addu(sp, sp, Operand(num_unsaved * kPointerSize));
 }
 
+
 void MacroAssembler::PushSafepointRegistersAndDoubles() {
   PushSafepointRegisters();
   Subu(sp, sp, Operand(FPURegister::kNumAllocatableRegisters * kDoubleSize));
@@ -218,6 +221,7 @@ void MacroAssembler::PushSafepointRegistersAndDoubles() {
   }
 }
 
+
 void MacroAssembler::PopSafepointRegistersAndDoubles() {
   for (int i = 0; i < FPURegister::kNumAllocatableRegisters; i+=2) {
     FPURegister reg = FPURegister::FromAllocationIndex(i);
@@ -227,6 +231,7 @@ void MacroAssembler::PopSafepointRegistersAndDoubles() {
   PopSafepointRegisters();
 }
 
+
 void MacroAssembler::StoreToSafepointRegistersAndDoublesSlot(Register src,
                                                              Register dst) {
   sw(src, SafepointRegistersAndDoublesSlot(dst));
@@ -3027,12 +3032,12 @@ MaybeObject* MacroAssembler::TryCallStub(CodeStub* stub, Condition cond,
 }
 
 
-
 void MacroAssembler::TailCallStub(CodeStub* stub) {
   ASSERT(allow_stub_calls());  // Stub calls are not allowed in some stubs.
   Jump(stub->GetCode(), RelocInfo::CODE_TARGET);
 }
 
+
 MaybeObject* MacroAssembler::TryTailCallStub(CodeStub* stub,
                                              Condition cond,
                                              Register r1,
@@ -3353,6 +3358,7 @@ void MacroAssembler::TailCallExternalReference(const ExternalReference& ext,
   JumpToExternalReference(ext);
 }
 
+
 MaybeObject* MacroAssembler::TryTailCallExternalReference(
     const ExternalReference& ext, int num_arguments, int result_size) {
   // TODO(1236192): Most runtime routines don't need the number of
@@ -3758,6 +3764,7 @@ int MacroAssembler::ActivationFrameAlignment() {
 #endif  // defined(V8_HOST_ARCH_MIPS)
 }
 
+
 void MacroAssembler::AssertStackIsAligned() {
   if (emit_debug_code()) {
       const int frame_alignment = ActivationFrameAlignment();