[PATCH] D76539: [CodeGenPrepare] Delete intrinsic call to llvm.assume to enable more tailcall

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/CodeGen/CodeGenPrepare.cpp:1989-1990
     }
     case Intrinsic::objectsize:
       llvm_unreachable("llvm.objectsize.* should have been lowered already");
     case Intrinsic::is_constant:
----------------
Carrot wrote:
> arsenm wrote:
> > Carrot wrote:
> > > arsenm wrote:
> > > > I would expect like object size/is_constant this would have been lowered already? I do disagree with using unreachable to error on this case though
> > > This is not in my patch.
> > > Do you want me to delete these 2 cases in the same patch?
> > I know, but I would expect this case to be handle the same way. These should also not be deleted, just upgraded to an error that won't be deleted in a release build
> objectsize and is_constant are lowered at LowerConstantIntrinsics, Intrinsic::assume does not generate instructions, so was simply ignored at SelectionDAG. Do you mean delete it at LowerConstantIntrinsics?
> 
> Also does "just upgraded to an error that won't be deleted in a release build" mean Ctx.emitError()?
> 
> thanks!
That or report_fatal_error


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76539/new/

https://reviews.llvm.org/D76539