danielkiss added inline comments.
================
Comment at: clang/lib/CodeGen/CGCall.cpp:1828
+ if (CodeGenOpts.BranchTargetEnforcement) {
+ FuncAttrs.addAttribute("branch-target-enforcement", "true");
+ }
----------------
chill wrote:
> danielkiss wrote:
> > chill wrote:
> > > I would really prefer to not set values "true" or "false" for the
> > > attribute: we don't really have tri-state logic there
> > > (absent/present-true/present-false), and those values just add some
> > > not-very useful string processing.
> > >
> > the attribute will be "absent" for the runtime emitted function.
> How about setting the attribute for LLVM created functions at the time of
> creation, just like Clang created functions
> get their attribute at the time of creation?
>
Attributes are not always set in clang as I see:
CodeGenModule::CreateRuntimeFunction() ->
CodeGenModule::GetOrCreateLLVMFunction
CreateRuntimeFunction could be fixed but, the common location for LLVM created
function is the llvm::Function::Create() where the CodeGenOpts and LangOpts are
no available.
Adding target specific code there seems not right for me.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D75181/new/
https://reviews.llvm.org/D75181
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