[PATCH] D23988: [compiler-rt][XRay] Support tail call sleds

[Dean Michael Berris via llvm-commits]

dberris added inline comments.

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Comment at: lib/xray/xray_interface.cc:266
@@ +265,3 @@
+      // Here we do the dance of replacing the tail call sled with a similar
+      // sequence as the entry sled, but jump to the exit sled instead, so we
+      // can treat tail call exits as if they were normal exits. In the future
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rSerge wrote:
> The comment says about a jump to the exit sled, but the code below uses `CallOpCode`. Which one is wrong?
The comment is inaccurate -- it should say "call to the exit sled instead". We need to call the exit sled so that it returns to the calling function just before the jump to the tail-called function. Let me update that.


https://reviews.llvm.org/D23988