X64/Win64: Alternative implementation of fmod in general.

src/x64/assembler-x64.cc

 // Copyright 2009 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 1952 matching lines @@
 
 void Assembler::fstp_d(const Operand& adr) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_optional_rex_32(adr);
   emit(0xDD);
   emit_operand(3, adr);
 }
 
 
+void Assembler::fstp(int index) {
+  ASSERT(is_uint3(index));
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  emit_farith(0xDD, 0xD8, index);
+}
+
+
 void Assembler::fild_s(const Operand& adr) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_optional_rex_32(adr);
   emit(0xDB);
   emit_operand(0, adr);
 }
 
 
 void Assembler::fild_d(const Operand& adr) {
@@ skipping 268 matching lines @@
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0xF2);  // double
   emit_optional_rex_32(src, dst);
   emit(0x0F);
   emit(0x11);  // store
   emit_sse_operand(src, dst);
 }
 
 
-void Assembler::movsd(Register dst, XMMRegister src) {
+void Assembler::movsd(XMMRegister dst, XMMRegister src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0xF2);  // double
-  emit_optional_rex_32(src, dst);
-  emit(0x0F);
-  emit(0x11);  // store
-  emit_sse_operand(src, dst);
-}
-
-
-void Assembler::movsd(XMMRegister dst, Register src) {
-  EnsureSpace ensure_space(this);
-  last_pc_ = pc_;
-  emit(0xF2);  // double
   emit_optional_rex_32(dst, src);
   emit(0x0F);
   emit(0x10);  // load
   emit_sse_operand(dst, src);
 }
 
 
 void Assembler::movsd(XMMRegister dst, const Operand& src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
@@ skipping 181 matching lines @@
     written_position_ = current_position_;
   }
 }
 
 
 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask |
                                   1 << RelocInfo::INTERNAL_REFERENCE |
                                   1 << RelocInfo::JS_RETURN;
 
 } }  // namespace v8::internal