This _trivial_ change causes GCSE and LICM to be much more effective at
hoisting loads. Before it would not be able to eliminate 'load X' if there
was just a dominating 'load X, 0' because the expressions were not identical.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3337
91177308-0d34-0410-b5e6-
96231b3b80d8
}
assert(LoadedTy->isFirstClassType());
+ if (Indices.size() == 1)
+ Indices.clear(); // Do not generate load X, 0
+
Res = new LoadInst(NewVal, Indices, Name);
assert(Res->getType()->isFirstClassType() && "Load of structure or array!");
break;