[PATCH] D75381: [WinEH] Fix inttoptr+phi optimization in presence of catchswitch

[Reid Kleckner via Phabricator via llvm-commits]

rnk created this revision.
rnk added reviewers: davidxl, wmi, hfinkel.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

getFirstInsertionPt's return value must be checked for validity before
casting it to Instruction*. Don't attempt to insert casts after a phi in
a catchswitch block.

Fixes PR45033, introduced in D37832 <https://reviews.llvm.org/D37832>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D75381

Files:
  llvm/lib/Transforms/InstCombine/InstCombinePHI.cpp
  llvm/test/Transforms/InstCombine/intptr8.ll

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