From ad8e14b740f87d814a00f9f0d44301f71ffd7ec6 Mon Sep 17 00:00:00 2001
From: Michael Matz <matz@suse.de>
Date: Mon, 26 Sep 2016 22:31:19 +0200
Subject: [PATCH] opt: Don't emit inline functions from dead code

Inside dead code don't regard inline functions as being
referenced.
---
 tccgen.c        | 2 +-
 tests/tcctest.c | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/tccgen.c b/tccgen.c
index 056ee4e..f9d4a7c 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -4594,7 +4594,7 @@ ST_FUNC void unary(void)
                effect to generate code for it at the end of the
                compilation unit. Inline function as always
                generated in the text section. */
-            if (!s->c)
+            if (!s->c && !nocode_wanted)
                 put_extern_sym(s, text_section, 0, 0);
             r = VT_SYM | VT_CONST;
         } else {
diff --git a/tests/tcctest.c b/tests/tcctest.c
index 0485a74..7bdffff 100644
--- a/tests/tcctest.c
+++ b/tests/tcctest.c
@@ -1170,6 +1170,11 @@ void bool_test()
 extern int undefined_function(void);
 extern int defined_function(void);
 
+static inline void refer_to_undefined(void)
+{
+  undefined_function();
+}
+
 void optimize_out(void)
 {
   int i = 0 ? undefined_function() : defined_function();
@@ -1264,6 +1269,9 @@ void optimize_out(void)
   else
     undefined_function();
 
+  if (defined_function() && 0)
+    refer_to_undefined();
+
   if (1)
     return;
   printf ("oor:%d\n", undefined_function());