[PATCH] D100445: [RS4GC] Introduce intrinsics to get base ptr and offset

[Philip Reames via Phabricator via llvm-commits]

reames accepted this revision.
reames added a comment.
This revision is now accepted and ready to land.

LGTM w/minor comment.

As a follow up, it would be interesting to explore lowering these early during optimization when feasible.  e.g. base_of(gep alloca, 15) -> alloca



================
Comment at: llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp:2402
+  for (auto *Callsite : Intrinsics)
+    if (Callsite->getIntrinsicID() ==
+        Intrinsic::experimental_gc_get_pointer_base) {
----------------
minor: use a switch here.


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  https://reviews.llvm.org/D100445/new/

https://reviews.llvm.org/D100445