[llvm-commits] CVS: llvm/lib/Bitcode/Reader/BitcodeReader.cpp

[Chris Lattner]

Changes in directory llvm/lib/Bitcode/Reader:

BitcodeReader.cpp updated: 1.42 -> 1.43
---
Log message:

add a denser encoding for null terminated strings, add a 6-bit abbrev as
well.  This shrinks kc++ from 2724088 to 2717360 bytes.



---
Diffs of the changes:  (+14 -0)

 BitcodeReader.cpp |   14 ++++++++++++++
 1 files changed, 14 insertions(+)


Index: llvm/lib/Bitcode/Reader/BitcodeReader.cpp
diff -u llvm/lib/Bitcode/Reader/BitcodeReader.cpp:1.42 llvm/lib/Bitcode/Reader/BitcodeReader.cpp:1.43
--- llvm/lib/Bitcode/Reader/BitcodeReader.cpp:1.42	Sat May  5 19:35:24 2007
+++ llvm/lib/Bitcode/Reader/BitcodeReader.cpp	Sat May  5 19:53:07 2007
@@ -651,9 +651,23 @@
       
       unsigned Size = Record.size();
       std::vector<Constant*> Elts;
+      for (unsigned i = 0; i != Size; ++i)
+        Elts.push_back(ConstantInt::get(EltTy, Record[i]));
+      V = ConstantArray::get(ATy, Elts);
+      break;
+    }
+    case bitc::CST_CODE_CSTRING: { // CSTRING: [values]
+      if (Record.empty())
+        return Error("Invalid CST_AGGREGATE record");
+      
+      const ArrayType *ATy = cast<ArrayType>(CurTy);
+      const Type *EltTy = ATy->getElementType();
       
+      unsigned Size = Record.size();
+      std::vector<Constant*> Elts;
       for (unsigned i = 0; i != Size; ++i)
         Elts.push_back(ConstantInt::get(EltTy, Record[i]));
+      Elts.push_back(Constant::getNullValue(EltTy));
       V = ConstantArray::get(ATy, Elts);
       break;
     }