// An incoming argument to the function is a base pointer
return BaseDefiningValueResult(I, true);
- // We shouldn't see the address of a global as a vector value?
- assert(!isa<GlobalVariable>(I) &&
- "unexpected global variable found in base of vector");
-
- // inlining could possibly introduce phi node that contains
- // undef if callee has multiple returns
- if (isa<UndefValue>(I))
- // utterly meaningless, but useful for dealing with partially optimized
- // code.
+ if (isa<Constant>(I))
+ // Constant vectors consist only of constant pointers.
return BaseDefiningValueResult(I, true);
- // Due to inheritance, this must be _after_ the global variable and undef
- // checks
- if (Constant *Con = dyn_cast<Constant>(I)) {
- assert(!isa<GlobalVariable>(I) && !isa<UndefValue>(I) &&
- "order of checks wrong!");
- assert(Con->isNullValue() && "null is the only case which makes sense");
- return BaseDefiningValueResult(Con, true);
- }
-
if (isa<LoadInst>(I))
return BaseDefiningValueResult(I, true);