X64 Win64: Reimplement fmod so that it works.

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index a903f7a83ed83af69dad68a2267e3d4c46a7b5df..abae6f34871abe61bcfb63be09660cf71600b47a 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -1314,6 +1314,11 @@ void MacroAssembler::Push(Smi* source) {
 }
 
 

[William Hesse, 2009/10/20 14:50:51]

Can this load optimization, and the Operand + displacement constructor, be moved
out to a separate changelist?  That way we can see if it is worth it.

[Lasse Reichstein, 2009/10/22 11:22:53]

I'm dropping this approach, going for a replacement of fmod at the C++ level
instead, but I'll save this change and see if it makes sense on its own.

+void MacroAssembler::FLoadSmi(const Operand& src) {
+  fild_s(Operand(src, kIntSize));
+}
+
+
 void MacroAssembler::Test(const Operand& src, Smi* source) {
   intptr_t smi = reinterpret_cast<intptr_t>(source);
   if (is_int32(smi)) {