[PATCH] D85184: [Attributor][WIP] Deduce noundef attribute

[Shinji Okumura via Phabricator via llvm-commits]

okura created this revision.
okura added a reviewer: jdoerfert.
Herald added subscribers: llvm-commits, kuter, uenoku, jfb, arphaman, hiraditya.
Herald added a reviewer: uenoku.
Herald added a reviewer: homerdin.
Herald added a project: LLVM.
okura requested review of this revision.
Herald added a reviewer: sstefan1.
Herald added subscribers: bbn, sstefan1.
Herald added a reviewer: baziotis.

This patch introduces a new abstract attribute `AANoUndef` which corresponds to `noundef` IR attribute and deduce them.
I finished implementing basic logic to deduce the attribute, but the number of affected tests is very large and I have not finished confirming that these changes are correct.


https://reviews.llvm.org/D85184

Files:
  llvm/include/llvm/Transforms/IPO/Attributor.h
  llvm/lib/Transforms/IPO/Attributor.cpp
  llvm/lib/Transforms/IPO/AttributorAttributes.cpp
  llvm/test/Transforms/Attributor/ArgumentPromotion/2008-02-01-ReturnAttrs.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/2008-07-02-array-indexing.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/alignment.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/basictest.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/byval.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow2.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/dbg.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/inalloca.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead_2.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/musttail.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/pr32917.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/profile.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/reserve-tbaa.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/tail.ll
  llvm/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll
  llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
  llvm/test/Transforms/Attributor/IPConstantProp/openmp_parallel_for.ll
  llvm/test/Transforms/Attributor/IPConstantProp/return-argument.ll
  llvm/test/Transforms/Attributor/IPConstantProp/thread_local_acs.ll
  llvm/test/Transforms/Attributor/align.ll
  llvm/test/Transforms/Attributor/callbacks.ll
  llvm/test/Transforms/Attributor/dereferenceable-1.ll
  llvm/test/Transforms/Attributor/dereferenceable-2.ll
  llvm/test/Transforms/Attributor/heap_to_stack.ll
  llvm/test/Transforms/Attributor/internal-noalias.ll
  llvm/test/Transforms/Attributor/liveness.ll
  llvm/test/Transforms/Attributor/memory_locations.ll
  llvm/test/Transforms/Attributor/misc.ll
  llvm/test/Transforms/Attributor/misc_crash.ll
  llvm/test/Transforms/Attributor/noalias.ll
  llvm/test/Transforms/Attributor/nocapture-1.ll
  llvm/test/Transforms/Attributor/nocapture-2.ll
  llvm/test/Transforms/Attributor/nofree.ll
  llvm/test/Transforms/Attributor/nonnull.ll
  llvm/test/Transforms/Attributor/nosync.ll
  llvm/test/Transforms/Attributor/range.ll
  llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll
  llvm/test/Transforms/Attributor/readattrs.ll
  llvm/test/Transforms/Attributor/returned.ll
  llvm/test/Transforms/Attributor/undefined_behavior.ll
  llvm/test/Transforms/Attributor/value-simplify.ll
  llvm/test/Transforms/Attributor/willreturn.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D85184.282821.patch
Type: text/x-patch
Size: 335512 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20200804/1df5308b/attachment-0001.bin>