[llvm-commits] [llvm] r108583 - in /llvm/trunk: include/llvm/CodeGen/MachineFrameInfo.h lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

[Eric Christopher]

Author: echristo
Date: Fri Jul 16 19:28:22 2010
New Revision: 108583

URL: http://llvm.org/viewvc/llvm-project?rev=108583&view=rev
Log:
Propagate alloca alignment information via variable size object frame
information.

No functional change yet.

Modified:
    llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

Modified: llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h?rev=108583&r1=108582&r2=108583&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h (original)
+++ llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h Fri Jul 16 19:28:22 2010
@@ -417,9 +417,10 @@
   /// variable sized object is created, whether or not the index returned is
   /// actually used.
   ///
-  int CreateVariableSizedObject() {
+  int CreateVariableSizedObject(unsigned Alignment) {
     HasVarSizedObjects = true;
-    Objects.push_back(StackObject(0, 1, 0, false, false));
+    Objects.push_back(StackObject(0, Alignment, 0, false, false));
+    MaxAlignment = std::max(MaxAlignment, Alignment);
     return (int)Objects.size()-NumFixedObjects-1;
   }
 

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp?rev=108583&r1=108582&r2=108583&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp Fri Jul 16 19:28:22 2010
@@ -2848,7 +2848,7 @@
 
   // Inform the Frame Information that we have just allocated a variable-sized
   // object.
-  FuncInfo.MF->getFrameInfo()->CreateVariableSizedObject();
+  FuncInfo.MF->getFrameInfo()->CreateVariableSizedObject(Align ? Align : 1);
 }
 
 void SelectionDAGBuilder::visitLoad(const LoadInst &I) {