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Tighten up array handling

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llvm-svn: 4655
This commit is contained in:
Chris Lattner 2002-11-09 19:25:27 +00:00
parent 6172544663
commit 5a11bf70c3
1 changed files with 5 additions and 1 deletions
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6
lib/Analysis/DataStructure/DataStructure.cpp
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@ -135,10 +135,12 @@ bool DSNode::mergeTypeInfo(const Type *NewTy, unsigned Offset) {
// be used anyway. This greatly reduces the size of large static arrays used
// as global variables, for example.
//
bool WillBeArray = false;
while (const ArrayType *AT = dyn_cast<ArrayType>(NewTy)) {
// FIXME: we might want to keep small arrays, but must be careful about
// things like: [2 x [10000 x int*]]
NewTy = AT->getElementType();
WillBeArray = true;
}
// Figure out how big the new type we're merging in is...
@ -152,8 +154,9 @@ bool DSNode::mergeTypeInfo(const Type *NewTy, unsigned Offset) {
// If this is the first type that this node has seen, just accept it without
// question....
assert(Offset == 0 && "Cannot have an offset into a void node!");
assert(Ty.isArray == false && "This shouldn't happen!");
assert(!Ty.isArray && "This shouldn't happen!");
Ty.Ty = NewTy;
Ty.isArray = WillBeArray;
Size = NewTySize;
// Calculate the number of outgoing links from this node.
@ -185,6 +188,7 @@ bool DSNode::mergeTypeInfo(const Type *NewTy, unsigned Offset) {
//
const Type *OldTy = Ty.Ty;
Ty.Ty = NewTy;
Ty.isArray = WillBeArray;
Size = NewTySize;
// Must grow links to be the appropriate size...