[llvm] [IR] Add getDataLayout() helpers to Function and GlobalValue (PR #96919)

[Yingwei Zheng via llvm-commits]

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@@ -15901,7 +15901,7 @@ bool AArch64TargetLowering::shouldSinkOperands(
         // the backend to generate a umull.
         unsigned Bitwidth = I->getType()->getScalarSizeInBits();
         APInt UpperMask = APInt::getHighBitsSet(Bitwidth, Bitwidth / 2);
-        const DataLayout &DL = I->getFunction()->getParent()->getDataLayout();
+        const DataLayout &DL = I->getFunction()->getDataLayout();
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dtcxzyw wrote:

```suggestion
        const DataLayout &DL = I->getDataLayout();
```

https://github.com/llvm/llvm-project/pull/96919