Fix big-endian codegen bug. We're splitting up

[oota-llvm.git] / lib / Bitcode / Reader / BitcodeReader.cpp

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index f06c61de41594bfb1e8cb2142f1c67742f6ea2d9..2ddfbe3a13c790cd4f9da69e6c5ba0faa77b31fe 100644 (file)
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -67,6 +67,7 @@ static GlobalValue::LinkageTypes GetDecodedLinkage(unsigned Val) {
   case 6: return GlobalValue::DLLExportLinkage;
   case 7: return GlobalValue::ExternalWeakLinkage;
   case 8: return GlobalValue::CommonLinkage;
+  case 9: return GlobalValue::PrivateLinkage;
   }
 }
 
@@ -362,6 +363,20 @@ bool BitcodeReader::ParseAttributeBlock() {
       Attributes RetAttribute = Attribute::None;
       Attributes FnAttribute = Attribute::None;
       for (unsigned i = 0, e = Record.size(); i != e; i += 2) {
+        // FIXME: remove in LLVM 3.0
+        // The alignment is stored as a 16-bit raw value from bits 31--16.
+        // We shift the bits above 31 down by 11 bits.
+
+        unsigned Alignment = (Record[i+1] & (0xffffull << 16)) >> 16;
+        if (Alignment && !isPowerOf2_32(Alignment))
+          return Error("Alignment is not a power of two.");
+
+        Attributes ReconstitutedAttr = Record[i+1] & 0xffff;
+        if (Alignment)
+          ReconstitutedAttr |= Attribute::constructAlignmentFromInt(Alignment);
+        ReconstitutedAttr |= (Record[i+1] & (0xffffull << 32)) >> 11;
+        Record[i+1] = ReconstitutedAttr;
+
         if (Record[i] == 0)
           RetAttribute = Record[i+1];
         else if (Record[i] == ~0U)
@@ -900,8 +915,7 @@ bool BitcodeReader::ParseConstants() {
         dyn_cast_or_null<VectorType>(getTypeByID(Record[0]));
       if (OpTy == 0) return Error("Invalid CE_EXTRACTELT record");
       Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
-      Constant *Op1 = ValueList.getConstantFwdRef(Record[2],
-                                                  OpTy->getElementType());
+      Constant *Op1 = ValueList.getConstantFwdRef(Record[2], Type::Int32Ty);
       V = ConstantExpr::getExtractElement(Op0, Op1);
       break;
     }
@@ -919,7 +933,7 @@ bool BitcodeReader::ParseConstants() {
     case bitc::CST_CODE_CE_SHUFFLEVEC: { // CE_SHUFFLEVEC: [opval, opval, opval]
       const VectorType *OpTy = dyn_cast<VectorType>(CurTy);
       if (Record.size() < 3 || OpTy == 0)
-        return Error("Invalid CE_INSERTELT record");
+        return Error("Invalid CE_SHUFFLEVEC record");
       Constant *Op0 = ValueList.getConstantFwdRef(Record[0], OpTy);
       Constant *Op1 = ValueList.getConstantFwdRef(Record[1], OpTy);
       const Type *ShufTy=VectorType::get(Type::Int32Ty, OpTy->getNumElements());
@@ -927,6 +941,18 @@ bool BitcodeReader::ParseConstants() {
       V = ConstantExpr::getShuffleVector(Op0, Op1, Op2);
       break;
     }
+    case bitc::CST_CODE_CE_SHUFVEC_EX: { // [opty, opval, opval, opval]
+      const VectorType *RTy = dyn_cast<VectorType>(CurTy);
+      const VectorType *OpTy = dyn_cast<VectorType>(getTypeByID(Record[0]));
+      if (Record.size() < 4 || RTy == 0 || OpTy == 0)
+        return Error("Invalid CE_SHUFVEC_EX record");
+      Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
+      Constant *Op1 = ValueList.getConstantFwdRef(Record[2], OpTy);
+      const Type *ShufTy=VectorType::get(Type::Int32Ty, RTy->getNumElements());
+      Constant *Op2 = ValueList.getConstantFwdRef(Record[3], ShufTy);
+      V = ConstantExpr::getShuffleVector(Op0, Op1, Op2);
+      break;
+    }
     case bitc::CST_CODE_CE_CMP: {     // CE_CMP: [opty, opval, opval, pred]
       if (Record.size() < 4) return Error("Invalid CE_CMP record");
       const Type *OpTy = getTypeByID(Record[0]);