Support passing arguments to invoke-static* instructions.

- Stop using the frame pointer for accessing locals.
- Stop emulating a stack when doing code generation. Instead,
  rely on dex register model, where instructions only reference
  registers.

Change-Id: Id51bd7d33ac430cb87a53c9f4b0c864eeb1006f9

1 files changed, 4 insertions, 7 deletions

diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index b86665b..8f07d89 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -30,6 +30,7 @@
 namespace art {
 
 void CodeGenerator::Compile(CodeAllocator* allocator) {
+  frame_size_ = GetGraph()->GetMaximumNumberOfOutVRegs() * kWordSize;
   const GrowableArray<HBasicBlock*>* blocks = GetGraph()->GetBlocks();
   DCHECK(blocks->Get(0) == GetGraph()->GetEntryBlock());
   DCHECK(GoesToNextBlock(GetGraph()->GetEntryBlock(), blocks->Get(1)));
@@ -73,9 +74,6 @@ void CodeGenerator::CompileBlock(HBasicBlock* block) {
     current->Accept(location_builder);
     InitLocations(current);
     current->Accept(instruction_visitor);
-    if (current->GetLocations() != nullptr && current->GetLocations()->Out().IsValid()) {
-      Push(current, current->GetLocations()->Out());
-    }
   }
 }
 
@@ -85,7 +83,7 @@ void CodeGenerator::InitLocations(HInstruction* instruction) {
     Location location = instruction->GetLocations()->InAt(i);
     if (location.IsValid()) {
       // Move the input to the desired location.
-      Move(instruction->InputAt(i), location);
+      Move(instruction->InputAt(i), location, instruction);
     }
   }
 }
@@ -204,11 +202,10 @@ void CodeGenerator::BuildMappingTable(std::vector<uint8_t>* data) const {
 
 void CodeGenerator::BuildVMapTable(std::vector<uint8_t>* data) const {
   Leb128EncodingVector vmap_encoder;
-  size_t size = 1 + 1 /* marker */ + 0;
+  // We currently don't use callee-saved registers.
+  size_t size = 0 + 1 /* marker */ + 0;
   vmap_encoder.Reserve(size + 1u);  // All values are likely to be one byte in ULEB128 (<128).
   vmap_encoder.PushBackUnsigned(size);
-  // We're currently always saving the frame pointer, so set it in the table as a temporary.
-  vmap_encoder.PushBackUnsigned(kVRegTempBaseReg + VmapTable::kEntryAdjustment);
   vmap_encoder.PushBackUnsigned(VmapTable::kAdjustedFpMarker);
 
   *data = vmap_encoder.GetData();