[llvm-commits] CVS: llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

[Chris Lattner]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

SelectionDAGISel.cpp updated: 1.80 -> 1.81
---
Log message:

Don't create zero sized stack objects even for array allocas with a zero
number of elements.


---
Diffs of the changes:  (+2 -1)

 SelectionDAGISel.cpp |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)


Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.80 llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.81
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.80	Fri Sep  2 02:09:28 2005
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp	Fri Sep  2 13:41:28 2005
@@ -150,7 +150,8 @@
         // TargetData.  It serves primarily to 8-byte align doubles for X86.
         if (Align < TySize && TySize <= 8) Align = TySize;
 
-        TySize *= CUI->getValue();   // Get total allocated size.
+        if (CUI->getValue())           // Don't produce zero sized stack objects
+          TySize *= CUI->getValue();   // Get total allocated size.
         StaticAllocaMap[AI] =
           MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align);
       }