Sink InstructionSelect() out of each target into SDISel, and rename it

DoInstructionSelection.  Inline "SelectRoot" into it from DAGISelHeader.
Sink some other stuff out of DAGISelHeader into SDISel.

Eliminate the various 'Indent' stuff from various targets, which dates
to when isel was recursive.

 17 files changed, 114 insertions(+), 430 deletions(-)

llvm-svn: 97555

1 files changed, 1 insertions, 14 deletions

diff --git a/llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp b/llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
index d6b17c24a4b..5303d853cca 100644
--- a/llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
@@ -159,10 +159,6 @@ namespace {
     // target-specific node if it hasn't already been changed.
     SDNode *Select(SDNode *N);
     
-    /// InstructionSelect - This callback is invoked by
-    /// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
-    virtual void InstructionSelect();
-    
     virtual const char *getPassName() const {
       return "Alpha DAG->DAG Pattern Instruction Selection";
     } 
@@ -222,20 +218,11 @@ SDNode *AlphaDAGToDAGISel::getGlobalRetAddr() {
   return CurDAG->getRegister(GlobalRetAddr, TLI.getPointerTy()).getNode();
 }
 
-/// InstructionSelect - This callback is invoked by
-/// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
-void AlphaDAGToDAGISel::InstructionSelect() {
-  // Select target instructions for the DAG.
-  SelectRoot(*CurDAG);
-  CurDAG->RemoveDeadNodes();
-}
-
 // Select - Convert the specified operand from a target-independent to a
 // target-specific node if it hasn't already been changed.
 SDNode *AlphaDAGToDAGISel::Select(SDNode *N) {
-  if (N->isMachineOpcode()) {
+  if (N->isMachineOpcode())
     return NULL;   // Already selected.
-  }
   DebugLoc dl = N->getDebugLoc();
 
   switch (N->getOpcode()) {