[PATCH] D112256: [FPEnv][EarlyCSE] Add support for CSE of constrained FP intrinsics, take 2

[Kevin P. Neal via Phabricator via llvm-commits]

kpn created this revision.
kpn added reviewers: JosephTremoulet, craig.topper.
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Currently we only CSE constrained FP intrinsics in the default floating point environment.

This patch adds support for CSE when exception behavior is "ignore" or "maytrap" and the rounding mode is known.

This review replaces D105895 <https://reviews.llvm.org/D105895>. No restrictions on CSE across function calls is in this patch.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D112256

Files:
  llvm/lib/Transforms/Scalar/EarlyCSE.cpp
  llvm/test/Transforms/EarlyCSE/ebstrict-strictfp.ll
  llvm/test/Transforms/EarlyCSE/mixed-strictfp.ll
  llvm/test/Transforms/EarlyCSE/nonmixed-strictfp.ll
  llvm/test/Transforms/EarlyCSE/round-dyn-strictfp.ll
  llvm/test/Transforms/EarlyCSE/tfpropagation.ll

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