[llvm-commits] CVS: llvm/utils/TableGen/Record.cpp

[Chris Lattner]

Changes in directory llvm/utils/TableGen:

Record.cpp updated: 1.19 -> 1.20

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Log message:

Fix bug: TableGen/BitsInitOverflow.td


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Diffs of the changes:

Index: llvm/utils/TableGen/Record.cpp
diff -u llvm/utils/TableGen/Record.cpp:1.19 llvm/utils/TableGen/Record.cpp:1.20
--- llvm/utils/TableGen/Record.cpp:1.19	Sun Aug  3 13:16:55 2003
+++ llvm/utils/TableGen/Record.cpp	Sun Aug  3 13:24:34 2003
@@ -53,10 +53,19 @@
 //
 Init *BitsRecTy::convertValue(IntInit *II) {
   int Value = II->getValue();
+  // Make sure this bitfield is large enough to hold the integer value...
+  if (Value >= 0) {
+    if (Value & ~((1 << Size)-1))
+      return 0;
+  } else {
+    if ((Value >> Size) != -1 || ((Value & (1 << Size-1)) == 0))
+      return 0;
+  }
 
   BitsInit *Ret = new BitsInit(Size);
   for (unsigned i = 0; i != Size; ++i)
     Ret->setBit(i, new BitInit(Value & (1 << i)));
+
   return Ret;
 }