[llvm] InlineCost: Use index sizes rather than pointer sizes in a few cases. (PR #119326)

[Alexander Richardson via llvm-commits]

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@@ -1743,7 +1743,7 @@ bool CallAnalyzer::visitPtrToInt(PtrToIntInst &I) {
   // integer is large enough to represent the pointer.
   unsigned IntegerSize = I.getType()->getScalarSizeInBits();
   unsigned AS = I.getOperand(0)->getType()->getPointerAddressSpace();
-  if (IntegerSize == DL.getPointerSizeInBits(AS)) {
+  if (IntegerSize == DL.getIndexSizeInBits(AS)) {
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arichardson wrote:

This one I am not 100% certain about - I am not sure we have consensus that index width is equal to the addressable range. I was going to post a RFC on this but as I am about to go on holiday it will most likely be January by the time I post it.

https://github.com/llvm/llvm-project/pull/119326