From a122f2f51e4cc9edc5f1c4020e51909b585a0f90 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Thu, 3 Jul 2008 18:20:14 +0000
Subject: [PATCH] Backed out 53031.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53110 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/SelectionDAG.h       |  5 ++---
 lib/CodeGen/SelectionDAG/LegalizeDAG.cpp  | 24 +++++++++--------------
 lib/CodeGen/SelectionDAG/SelectionDAG.cpp |  7 +++----
 3 files changed, 14 insertions(+), 22 deletions(-)

diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index 58883e5709d..7ebc698bad3 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -589,9 +589,8 @@ public:
   void dump() const;
 
   /// CreateStackTemporary - Create a stack temporary, suitable for holding the
-  /// specified value type.  If minAlign is specified, the slot size will have
-  /// at least that alignment.
-  SDOperand CreateStackTemporary(MVT VT, unsigned minAlign = 1);
+  /// specified value type.
+  SDOperand CreateStackTemporary(MVT VT);
 
   /// FoldSetCC - Constant fold a setcc to true or false.
   SDOperand FoldSetCC(MVT VT, SDOperand N1,
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index e5599b681b7..c6de8625144 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -4871,41 +4871,35 @@ SDOperand SelectionDAGLegalize::EmitStackConvert(SDOperand SrcOp,
                                                  MVT SlotVT,
                                                  MVT DestVT) {
   // Create the stack frame object.
-  unsigned SrcAlign = TLI.getTargetData()->getPrefTypeAlignment(
-                                          SrcOp.getValueType().getTypeForMVT());
-  SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT, SrcAlign);
-  
+  SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT);
+
   FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr);
   int SPFI = StackPtrFI->getIndex();
-  
+
   unsigned SrcSize = SrcOp.getValueType().getSizeInBits();
   unsigned SlotSize = SlotVT.getSizeInBits();
   unsigned DestSize = DestVT.getSizeInBits();
-  const Type* SlotTy = SlotVT.getTypeForMVT();
-  unsigned SlotAlign = TLI.getTargetData()->getPrefTypeAlignment(SlotTy);
   
   // Emit a store to the stack slot.  Use a truncstore if the input value is
   // later than DestVT.
   SDOperand Store;
-  
   if (SrcSize > SlotSize)
     Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr,
-                              PseudoSourceValue::getFixedStack(), SPFI, SlotVT, 
-                              false, SlotAlign);
+                              PseudoSourceValue::getFixedStack(),
+                              SPFI, SlotVT);
   else {
     assert(SrcSize == SlotSize && "Invalid store");
     Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr,
-                         PseudoSourceValue::getFixedStack(), SPFI,
-                         false, SlotAlign);
+                         PseudoSourceValue::getFixedStack(),
+                         SPFI);
   }
   
   // Result is a load from the stack slot.
   if (SlotSize == DestSize)
-    return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0, false, SlotAlign);
+    return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0);
   
   assert(SlotSize < DestSize && "Unknown extension!");
-  return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT,
-                        false, SlotAlign);
+  return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT);
 }
 
 SDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) {
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 9cce7380fca..c457c4bb767 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1080,17 +1080,16 @@ SDOperand SelectionDAG::getMemOperand(const MachineMemOperand &MO) {
 
 /// CreateStackTemporary - Create a stack temporary, suitable for holding the
 /// specified value type.
-SDOperand SelectionDAG::CreateStackTemporary(MVT VT, unsigned minAlign) {
+SDOperand SelectionDAG::CreateStackTemporary(MVT VT) {
   MachineFrameInfo *FrameInfo = getMachineFunction().getFrameInfo();
   unsigned ByteSize = VT.getSizeInBits()/8;
   const Type *Ty = VT.getTypeForMVT();
-  unsigned StackAlign =
-    std::max((unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty), minAlign);
-
+  unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty);
   int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign);
   return getFrameIndex(FrameIdx, TLI.getPointerTy());
 }
 
+
 SDOperand SelectionDAG::FoldSetCC(MVT VT, SDOperand N1,
                                   SDOperand N2, ISD::CondCode Cond) {
   // These setcc operations always fold.
-- 
2.34.1