X64 Crnakshaft: Added GeneratePrologue implementation.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 4a7b3aa3aeb06f9f10b905030c2b17928b96e774..528dc27df387492ff164b04810ca7a63930a83d4 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -305,15 +305,17 @@ void LAccessArgumentsAt::PrintDataTo(StringStream* stream) {
 
 
 int LChunk::GetNextSpillIndex(bool is_double) {
-  // Need to consider what index means: Is it 32 bit or 64 bit index?
-  UNIMPLEMENTED();
-  return 0;
+  return spill_slot_count_++;
 }
 
 
 LOperand* LChunk::GetNextSpillSlot(bool is_double)  {
-  UNIMPLEMENTED();
-  return NULL;
+  // All stack slots are Double stack slots on x64.
+  // Alternatively, at some point, start using half-size
+  // stack slots for int32 values.
+  int index = GetNextSpillIndex(is_double);
+  if (is_double) return LDoubleStackSlot(index);
+  return LStackSlot::Create(index);

[Rico, 2011/01/14 12:57:02]

I would probably make this a if - else statement or change the ia32 to look like
this (so that we keep the diff minimal)

[Lasse Reichstein, 2011/01/14 13:12:30]

Made identical to ia32.

 }
 
 
@@ -737,6 +739,7 @@ LInstruction* LChunkBuilder::DoArithmeticT(Token::Value op,
   return NULL;
 }
 
+
 void LChunkBuilder::DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block) {
   ASSERT(is_building());
   current_block_ = block;