add support for alignment attributes on load/store instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36301 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bytecode/Reader/Reader.cpp b/lib/Bytecode/Reader/Reader.cpp
index 4979269..59c69d7 100644
--- a/lib/Bytecode/Reader/Reader.cpp
+++ b/lib/Bytecode/Reader/Reader.cpp
@@ -831,13 +831,31 @@
&Idx[0], Idx.size());
break;
}
- case 62: // volatile load
+ case 62: { // attributed load
+ if (Oprnds.size() != 2 || !isa<PointerType>(InstTy))
+ error("Invalid attributed load instruction!");
+ signed Log2AlignVal = ((Oprnds[1]>>1)-1);
+ Result = new LoadInst(getValue(iType, Oprnds[0]), "", (Oprnds[1] & 1),
+ ((Log2AlignVal < 0) ? 0 : 1<<Log2AlignVal));
+ break;
+ }
case Instruction::Load:
if (Oprnds.size() != 1 || !isa<PointerType>(InstTy))
error("Invalid load instruction!");
- Result = new LoadInst(getValue(iType, Oprnds[0]), "", Opcode == 62);
+ Result = new LoadInst(getValue(iType, Oprnds[0]), "");
break;
- case 63: // volatile store
+ case 63: { // attributed store
+ if (!isa<PointerType>(InstTy) || Oprnds.size() != 3)
+ error("Invalid store instruction!");
+
+ Value *Ptr = getValue(iType, Oprnds[1]);
+ const Type *ValTy = cast<PointerType>(Ptr->getType())->getElementType();
+ signed Log2AlignVal = ((Oprnds[2]>>1)-1);
+ Result = new StoreInst(getValue(getTypeSlot(ValTy), Oprnds[0]), Ptr,
+ (Oprnds[2] & 1),
+ ((Log2AlignVal < 0) ? 0 : 1<<Log2AlignVal));
+ break;
+ }
case Instruction::Store: {
if (!isa<PointerType>(InstTy) || Oprnds.size() != 2)
error("Invalid store instruction!");