From 91c8c74180ced4b82da02f2544f3978f72003d37 Mon Sep 17 00:00:00 2001
From: George Burgess IV <george.burgess.iv@gmail.com>
Date: Tue, 14 Apr 2020 14:29:29 -0700
Subject: [PATCH] [CodeGen] clarify a comment; NFC

Prompted by discussion on https://reviews.llvm.org/D78148.
---
 clang/lib/CodeGen/CodeGenModule.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 0f56dcb3e26c..39aa5c1c512f 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -2796,8 +2796,8 @@ bool CodeGenModule::shouldEmitFunction(GlobalDecl GD) {
 
   // PR9614. Avoid cases where the source code is lying to us. An available
   // externally function should have an equivalent function somewhere else,
-  // but a function that calls itself is clearly not equivalent to the real
-  // implementation.
+  // but a function that calls itself through asm label/`__builtin_` trickery is
+  // clearly not equivalent to the real implementation.
   // This happens in glibc's btowc and in some configure checks.
   return !isTriviallyRecursive(F);
 }