Support Float64Arrays

src/ia32/lithium-codegen-ia32.cc

 // Copyright 2011 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 2320 matching lines @@
 
 void LCodeGen::DoLoadKeyedSpecializedArrayElement(
     LLoadKeyedSpecializedArrayElement* instr) {
   Register external_pointer = ToRegister(instr->external_pointer());
   Register key = ToRegister(instr->key());
   ExternalArrayType array_type = instr->array_type();
   if (array_type == kExternalFloatArray) {
     XMMRegister result(ToDoubleRegister(instr->result()));
     __ movss(result, Operand(external_pointer, key, times_4, 0));
     __ cvtss2sd(result, result);
+  } else if (array_type == kExternalDoubleArray) {
+    __ movdbl(ToDoubleRegister(instr->result()),
+              Operand(external_pointer, key, times_8, 0));
   } else {
     Register result(ToRegister(instr->result()));
     switch (array_type) {
       case kExternalByteArray:
         __ movsx_b(result, Operand(external_pointer, key, times_1, 0));
         break;
       case kExternalUnsignedByteArray:
       case kExternalPixelArray:
         __ movzx_b(result, Operand(external_pointer, key, times_1, 0));
         break;
       case kExternalShortArray:
         __ movsx_w(result, Operand(external_pointer, key, times_2, 0));
         break;
       case kExternalUnsignedShortArray:
         __ movzx_w(result, Operand(external_pointer, key, times_2, 0));
         break;
       case kExternalIntArray:
         __ mov(result, Operand(external_pointer, key, times_4, 0));
         break;
       case kExternalUnsignedIntArray:
         __ mov(result, Operand(external_pointer, key, times_4, 0));
         __ test(result, Operand(result));
         // TODO(danno): we could be more clever here, perhaps having a special
         // version of the stub that detects if the overflow case actually
         // happens, and generate code that returns a double rather than int.
         DeoptimizeIf(negative, instr->environment());
         break;
       case kExternalFloatArray:
+      case kExternalDoubleArray:
         UNREACHABLE();
         break;
     }
   }
 }
 
 
 void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->context()).is(esi));
   ASSERT(ToRegister(instr->object()).is(edx));
@@ skipping 661 matching lines @@
 
 
 void LCodeGen::DoStoreKeyedSpecializedArrayElement(
     LStoreKeyedSpecializedArrayElement* instr) {
   Register external_pointer = ToRegister(instr->external_pointer());
   Register key = ToRegister(instr->key());
   ExternalArrayType array_type = instr->array_type();
   if (array_type == kExternalFloatArray) {
     __ cvtsd2ss(xmm0, ToDoubleRegister(instr->value()));
     __ movss(Operand(external_pointer, key, times_4, 0), xmm0);
+  } else if (array_type == kExternalDoubleArray) {
+    __ movdbl(Operand(external_pointer, key, times_8, 0),
+              ToDoubleRegister(instr->value()));
   } else {
     Register value = ToRegister(instr->value());
     switch (array_type) {
       case kExternalPixelArray: {
         // Clamp the value to [0..255].
         Register temp = ToRegister(instr->TempAt(0));
         // The dec_b below requires that the clamped value is in a byte
         // register. eax is an arbitrary choice to satisfy this requirement, we
         // hinted the register allocator to give us eax when building the
         // instruction.
@@ skipping 14 matching lines @@
         break;
       case kExternalShortArray:
       case kExternalUnsignedShortArray:
         __ mov_w(Operand(external_pointer, key, times_2, 0), value);
         break;
       case kExternalIntArray:
       case kExternalUnsignedIntArray:
         __ mov(Operand(external_pointer, key, times_4, 0), value);
         break;
       case kExternalFloatArray:
+      case kExternalDoubleArray:
         UNREACHABLE();
         break;
     }
   }
 }
 
 
 void LCodeGen::DoStoreKeyedFastElement(LStoreKeyedFastElement* instr) {
   Register value = ToRegister(instr->value());
   Register elements = ToRegister(instr->object());
@@ skipping 1114 matching lines @@
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32