Warn about code that uses variables and functions with internal linkage
without defining them. This should be an error, but I'm paranoid about
"uses" that end up not actually requiring a definition. I'll revisit later.
Also, teach IR generation to not set internal linkage on variable
declarations, just for safety's sake. Doing so produces an invalid module
if the variable is not ultimately defined.
Also, fix several places in the test suite where we were using internal
functions without definitions.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126016 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/regparm.c b/test/CodeGen/regparm.c
index dd0be96..d628b68 100644
--- a/test/CodeGen/regparm.c
+++ b/test/CodeGen/regparm.c
@@ -11,8 +11,7 @@
typedef void (*FType)(int, int) __attribute ((regparm (3), stdcall));
FType bar;
-static void FASTCALL
-reduced(char b, double c, foo* d, double e, int f);
+extern void FASTCALL reduced(char b, double c, foo* d, double e, int f);
// PR7025
void FASTCALL f1(int i, int j, int k);
diff --git a/test/CodeGen/sizeof-vla.c b/test/CodeGen/sizeof-vla.c
index b0c514f..c5fc912 100644
--- a/test/CodeGen/sizeof-vla.c
+++ b/test/CodeGen/sizeof-vla.c
@@ -2,7 +2,7 @@
// PR3442
-static void *g(unsigned long len);
+void *g(unsigned long len);
void
f(int n)