Enable first-class aggregates support.

Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 20 deletions

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 12c54c1eef..fdc3d25bd5 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -806,8 +806,6 @@ public:
   void visitVAEnd(CallInst &I);
   void visitVACopy(CallInst &I);
 
-  void visitGetResult(GetResultInst &I);
-
   void visitUserOp1(Instruction &I) {
     assert(0 && "UserOp1 should not exist at instruction selection time!");
     abort();
@@ -3688,24 +3686,6 @@ void SelectionDAGLowering::visitCall(CallInst &I) {
 }
 
 
-void SelectionDAGLowering::visitGetResult(GetResultInst &I) {
-  if (isa<UndefValue>(I.getOperand(0))) {
-    SDOperand Undef = DAG.getNode(ISD::UNDEF, TLI.getValueType(I.getType()));
-    setValue(&I, Undef);
-    return;
-  }
-  
-  // To add support for individual return values with aggregate types,
-  // we'd need a way to take a getresult index and determine which
-  // values of the Call SDNode are associated with it.
-  assert(TLI.getValueType(I.getType(), true) != MVT::Other &&
-         "Individual return values must not be aggregates!");
-
-  SDOperand Call = getValue(I.getOperand(0));
-  setValue(&I, SDOperand(Call.Val, I.getIndex()));
-}
-
-
 /// getCopyFromRegs - Emit a series of CopyFromReg nodes that copies from
 /// this value and returns the result as a ValueVT value.  This uses 
 /// Chain/Flag as the input and updates them for the output Chain/Flag.