[llvm-commits] CVS: llvm/lib/Transforms/ExprTypeConvert.cpp TransformInternals.cpp

[Chris Lattner]

Changes in directory llvm/lib/Transforms:

ExprTypeConvert.cpp updated: 1.73 -> 1.74
TransformInternals.cpp updated: 1.35 -> 1.36

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Log message:

avoid dividing by zero when dealing with zero sized types (like [0 x double])


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Diffs of the changes:

Index: llvm/lib/Transforms/ExprTypeConvert.cpp
diff -u llvm/lib/Transforms/ExprTypeConvert.cpp:1.73 llvm/lib/Transforms/ExprTypeConvert.cpp:1.74
--- llvm/lib/Transforms/ExprTypeConvert.cpp:1.73	Thu May 29 10:12:27 2003
+++ llvm/lib/Transforms/ExprTypeConvert.cpp	Mon Jun 23 12:36:49 2003
@@ -49,6 +49,7 @@
 
   // Get information about the base datatype being allocated, before & after
   int ReqTypeSize = TD.getTypeSize(Ty);
+  if (ReqTypeSize == 0) return false;
   unsigned OldTypeSize = TD.getTypeSize(MI->getType()->getElementType());
 
   // Must have a scale or offset to analyze it...


Index: llvm/lib/Transforms/TransformInternals.cpp
diff -u llvm/lib/Transforms/TransformInternals.cpp:1.35 llvm/lib/Transforms/TransformInternals.cpp:1.36
--- llvm/lib/Transforms/TransformInternals.cpp:1.35	Sat Jun  7 16:45:42 2003
+++ llvm/lib/Transforms/TransformInternals.cpp	Mon Jun 23 12:36:49 2003
@@ -119,6 +119,7 @@
       if (!ElTy->isSized() || (isa<PointerType>(CompTy) && !Indices.empty()))
         return 0; // Type is unreasonable... escape!
       unsigned ElSize = TD.getTypeSize(ElTy);
+      if (ElSize == 0) return 0;   // Avoid division by zero...
       int64_t ElSizeS = ElSize;
 
       // See if the user is indexing into a different cell of this array...