Begin adding docs and IR-level support for the inalloca attribute

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

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index d25b33e9ab70a62071ff2a29dd46cbc1613e7da9..37515eb6f285457d4f64f6c1515ca45ad672853f 100644 (file)
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -128,6 +128,7 @@ static int GetDecodedCastOpcode(unsigned Val) {
   case bitc::CAST_PTRTOINT: return Instruction::PtrToInt;
   case bitc::CAST_INTTOPTR: return Instruction::IntToPtr;
   case bitc::CAST_BITCAST : return Instruction::BitCast;
+  case bitc::CAST_ADDRSPACECAST: return Instruction::AddrSpaceCast;
   }
 }
 static int GetDecodedBinaryOpcode(unsigned Val, Type *Ty) {
@@ -521,6 +522,8 @@ static Attribute::AttrKind GetAttrFromCode(uint64_t Code) {
     return Attribute::Builtin;
   case bitc::ATTR_KIND_BY_VAL:
     return Attribute::ByVal;
+  case bitc::ATTR_KIND_IN_ALLOCA:
+    return Attribute::InAlloca;
   case bitc::ATTR_KIND_COLD:
     return Attribute::Cold;
   case bitc::ATTR_KIND_INLINE_HINT:
@@ -1356,7 +1359,8 @@ error_code BitcodeReader::ParseConstants() {
         if (!OpTy)
           return Error(InvalidRecord);
         Constant *Op = ValueList.getConstantFwdRef(Record[2], OpTy);
-        V = ConstantExpr::getCast(Opc, Op, CurTy);
+        V = UpgradeBitCastExpr(Opc, Op, CurTy);
+        if (!V) V = ConstantExpr::getCast(Opc, Op, CurTy);
       }
       break;
     }
@@ -2296,7 +2300,15 @@ error_code BitcodeReader::ParseFunctionBody(Function *F) {
       int Opc = GetDecodedCastOpcode(Record[OpNum+1]);
       if (Opc == -1 || ResTy == 0)
         return Error(InvalidRecord);
-      I = CastInst::Create((Instruction::CastOps)Opc, Op, ResTy);
+      Instruction *Temp = 0;
+      if ((I = UpgradeBitCastInst(Opc, Op, ResTy, Temp))) {
+        if (Temp) {
+          InstructionList.push_back(Temp);
+          CurBB->getInstList().push_back(Temp);
+        }
+      } else {
+        I = CastInst::Create((Instruction::CastOps)Opc, Op, ResTy);
+      }
       InstructionList.push_back(I);
       break;
     }
@@ -3142,6 +3154,7 @@ error_code BitcodeReader::MaterializeModule(Module *M) {
   for (unsigned I = 0, E = InstsWithTBAATag.size(); I < E; I++)
     UpgradeInstWithTBAATag(InstsWithTBAATag[I]);
 
+  UpgradeDebugInfo(*M);
   return error_code::success();
 }