[PATCH] D50016: IR: Add entry/exit instrumentation symbols to the libcall list.

Peter Collingbourne via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Feb 14 14:16:06 PST 2019

pcc marked an inline comment as done.
pcc added inline comments.
Herald added a project: LLVM.

Comment at: llvm/lib/Transforms/Utils/EntryExitInstrumenter.cpp:23
                        Instruction *InsertionPt, DebugLoc DL) {
+  // If you add code to recognize a new instrumentation function here, the
+  // function also needs to be added to include/llvm/IR/RuntimeLibcalls.def
tejohnson wrote:
> pcc wrote:
> > tejohnson wrote:
> > > Can you include RuntimeLibcalls.def and assert that the name is in that list?
> > I could, but I don't think we need to do that unless there's evidence that people are ignoring the comment.
> I'd prefer an assert, because I think it would be easy to miss the comment if the second if block is extended with another func name, or a subsequent new if block is added below it.
How about just putting a comment in all the places where people are likely to add new code to this function (before ifs, at the end)?




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