[PATCH] D73201: [FPEnv][AArch64] Don't expand STRICT_FP_ROUND to an illegal truncating store

[John Brawn via Phabricator via llvm-commits]

john.brawn created this revision.
john.brawn added reviewers: pengfei, uweigand, craig.topper.
Herald added subscribers: hiraditya, kristof.beyls.
Herald added a project: LLVM.

Currently STRICT_FP_ROUND can be expanded to an illegal truncating store which then gets expanded to a TRUNCATE and store, but floating-point TRUNCATE is not valid and we get an assertion failure. Fix this by not doing this expansion when the truncating store is not legal.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D73201

Files:
  llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
  llvm/test/CodeGen/AArch64/fp-intrinsics.ll

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