MIPS: Remove soft-float support.

src/mips/full-codegen-mips.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 656 matching lines @@
   } else {
     if (false_label_ != fall_through_) __ Branch(false_label_);
   }
 }
 
 
 void FullCodeGenerator::DoTest(Expression* condition,
                                Label* if_true,
                                Label* if_false,
                                Label* fall_through) {
-  if (CpuFeatures::IsSupported(FPU)) {
-    ToBooleanStub stub(result_register());
-    __ CallStub(&stub, condition->test_id());
-    __ mov(at, zero_reg);
-  } else {
-    // Call the runtime to find the boolean value of the source and then
-    // translate it into control flow to the pair of labels.
-    __ push(result_register());
-    __ CallRuntime(Runtime::kToBool, 1);
-    __ LoadRoot(at, Heap::kFalseValueRootIndex);
-  }
+  ToBooleanStub stub(result_register());
+  __ CallStub(&stub, condition->test_id());
+  __ mov(at, zero_reg);
   Split(ne, v0, Operand(at), if_true, if_false, fall_through);
 }
 
 
 void FullCodeGenerator::Split(Condition cc,
                               Register lhs,
                               const Operand&  rhs,
                               Label* if_true,
                               Label* if_false,
                               Label* fall_through) {
@@ skipping 2340 matching lines @@
 
   // Allocate a heap number.
   __ CallRuntime(Runtime::kNumberAlloc, 0);
   __ mov(s0, v0);   // Save result in s0, so it is saved thru CFunc call.
 
   __ bind(&heapnumber_allocated);
 
   // Convert 32 random bits in v0 to 0.(32 random bits) in a double
   // by computing:
   // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)).
-  if (CpuFeatures::IsSupported(FPU)) {
-    __ PrepareCallCFunction(1, a0);
-    __ lw(a0, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
-    __ lw(a0, FieldMemOperand(a0, GlobalObject::kNativeContextOffset));
-    __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1);
+  __ PrepareCallCFunction(1, a0);
+  __ lw(a0, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
+  __ lw(a0, FieldMemOperand(a0, GlobalObject::kNativeContextOffset));
+  __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1);
 
-    CpuFeatureScope scope(masm(), FPU);
-    // 0x41300000 is the top half of 1.0 x 2^20 as a double.
-    __ li(a1, Operand(0x41300000));
-    // Move 0x41300000xxxxxxxx (x = random bits in v0) to FPU.
-    __ Move(f12, v0, a1);
-    // Move 0x4130000000000000 to FPU.
-    __ Move(f14, zero_reg, a1);
-    // Subtract and store the result in the heap number.
-    __ sub_d(f0, f12, f14);
-    __ sdc1(f0, FieldMemOperand(s0, HeapNumber::kValueOffset));
-    __ mov(v0, s0);
-  } else {
-    __ PrepareCallCFunction(2, a0);
-    __ mov(a0, s0);
-    __ lw(a1, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
-    __ lw(a1, FieldMemOperand(a1, GlobalObject::kNativeContextOffset));
-    __ CallCFunction(
-        ExternalReference::fill_heap_number_with_random_function(isolate()), 2);
-  }
+  // 0x41300000 is the top half of 1.0 x 2^20 as a double.
+  __ li(a1, Operand(0x41300000));
+  // Move 0x41300000xxxxxxxx (x = random bits in v0) to FPU.
+  __ Move(f12, v0, a1);
+  // Move 0x4130000000000000 to FPU.
+  __ Move(f14, zero_reg, a1);
+  // Subtract and store the result in the heap number.
+  __ sub_d(f0, f12, f14);
+  __ sdc1(f0, FieldMemOperand(s0, HeapNumber::kValueOffset));
+  __ mov(v0, s0);
 
   context()->Plug(v0);
 }
 
 
 void FullCodeGenerator::EmitSubString(CallRuntime* expr) {
   // Load the arguments on the stack and call the stub.
   SubStringStub stub;
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT(args->length() == 3);
@@ skipping 117 matching lines @@
   context()->Plug(v0);
 }
 
 
 void FullCodeGenerator::EmitMathPow(CallRuntime* expr) {
   // Load the arguments on the stack and call the runtime function.
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT(args->length() == 2);
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
-  if (CpuFeatures::IsSupported(FPU)) {
-    MathPowStub stub(MathPowStub::ON_STACK);
-    __ CallStub(&stub);
-  } else {
-    __ CallRuntime(Runtime::kMath_pow, 2);
-  }
+  MathPowStub stub(MathPowStub::ON_STACK);
+  __ CallStub(&stub);
   context()->Plug(v0);
 }
 
 
 void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT(args->length() == 2);
 
   VisitForStackValue(args->at(0));  // Load the object.
   VisitForAccumulatorValue(args->at(1));  // Load the value.
@@ skipping 1379 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS