Move the object size intrinsic optimization to inst-combine and make
it work for any integer size return type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92853 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/InstCombine/InstCombineCalls.cpp b/lib/Transforms/InstCombine/InstCombineCalls.cpp
index 6aacf5d..e343600 100644
--- a/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -632,6 +632,18 @@
return EraseInstFromFunction(CI);
break;
}
+ case Intrinsic::objectsize: {
+ ConstantInt *Const = dyn_cast<ConstantInt>(II->getOperand(2));
+
+ if (!Const) return 0;
+
+ const Type *Ty = CI.getType();
+
+ if (Const->getZExtValue() == 0)
+ return ReplaceInstUsesWith(CI, Constant::getAllOnesValue(Ty));
+ else
+ return ReplaceInstUsesWith(CI, ConstantInt::get(Ty, 0));
+ }
}
return visitCallSite(II);