// value cannot be decomposed at all.
uint64_t AllocaSize = TD->getTypeAllocSize(AI->getAllocatedType());
+ // Do not promote [0 x %struct].
+ if (AllocaSize == 0) continue;
+
// Do not promote any struct whose size is too big.
if (AllocaSize > SRThreshold) continue;
-
+
if ((isa<StructType>(AI->getAllocatedType()) ||
isa<ArrayType>(AI->getAllocatedType())) &&
// Do not promote any struct into more than "32" separate vars.
--- /dev/null
+; RUN: llvm-as < %s | opt -scalarrepl -disable-opt
+
+ %struct.Item = type { [4 x i16], %struct.rule* }
+ %struct.rule = type { [4 x i16], i32, i32, i32, %struct.nonterminal*, %struct.pattern*, i8 }
+ %struct.nonterminal = type { i8*, i32, i32, i32, %struct.plankMap*, %struct.rule* }
+ %struct.plankMap = type { %struct.list*, i32, %struct.stateMap* }
+ %struct.list = type { i8*, %struct.list* }
+ %struct.stateMap = type { i8*, %struct.plank*, i32, i16* }
+ %struct.plank = type { i8*, %struct.list*, i32 }
+ %struct.pattern = type { %struct.nonterminal*, %struct.operator*, [2 x %struct.nonterminal*] }
+ %struct.operator = type { i8*, i8, i32, i32, i32, i32, %struct.table* }
+ %struct.table = type { %struct.operator*, %struct.list*, i16*, [2 x %struct.dimension*], %struct.item_set** }
+ %struct.dimension = type { i16*, %struct.Index_Map, %struct.mapping*, i32, %struct.plankMap* }
+ %struct.Index_Map = type { i32, %struct.item_set** }
+ %struct.item_set = type { i32, i32, %struct.operator*, [2 x %struct.item_set*], %struct.item_set*, i16*, %struct.Item*, %struct.Item* }
+ %struct.mapping = type { %struct.list**, i32, i32, i32, %struct.item_set** }
+
+define void @addHP_2_0() {
+bb4.i:
+ %0 = malloc [0 x %struct.Item] ; <[0 x %struct.Item]*> [#uses=1]
+ %.sub.i.c.i = getelementptr [0 x %struct.Item]* %0, i32 0, i32 0 ; <%struct.Item*> [#uses=0]
+ unreachable
+}