llvm: TargetLibraryInfo: Undefine libc functions if they are macros

musl defines some functions as macros and not inline functions
if this is the case then make sure to undefine them

Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Author: kraj

llvm/include/llvm/Analysis/TargetLibraryInfo.def

@@ -1467,6 +1467,9 @@ TLI_DEFINE_STRING_INTERNAL("fopen")
 TLI_DEFINE_SIG_INTERNAL(Ptr, Ptr, Ptr)
 
 /// FILE *fopen64(const char *filename, const char *opentype)
+#ifdef fopen64
+#undef fopen64
+#endif
 TLI_DEFINE_ENUM_INTERNAL(fopen64)
 TLI_DEFINE_STRING_INTERNAL("fopen64")
 TLI_DEFINE_SIG_INTERNAL(Ptr, Ptr, Ptr)
@@ -1545,7 +1548,9 @@ TLI_DEFINE_SIG_INTERNAL(Int, Ptr, Long, Int)
 TLI_DEFINE_ENUM_INTERNAL(fseeko)
 TLI_DEFINE_STRING_INTERNAL("fseeko")
 TLI_DEFINE_SIG_INTERNAL(Int, Ptr, IntX, Int)
-
+#ifdef fseeko64
+#undef fseeko64
+#endif
 /// int fseeko64(FILE *stream, off64_t offset, int whence)
 TLI_DEFINE_ENUM_INTERNAL(fseeko64)
 TLI_DEFINE_STRING_INTERNAL("fseeko64")
@@ -1562,6 +1567,9 @@ TLI_DEFINE_STRING_INTERNAL("fstat")
 TLI_DEFINE_SIG_INTERNAL(Int, Int, Ptr)
 
 /// int fstat64(int filedes, struct stat64 *buf)
+#ifdef fstat64
+#undef fstat64
+#endif
 TLI_DEFINE_ENUM_INTERNAL(fstat64)
 TLI_DEFINE_STRING_INTERNAL("fstat64")
 TLI_DEFINE_SIG_INTERNAL(Int, Int, Ptr)
@@ -1587,6 +1595,9 @@ TLI_DEFINE_STRING_INTERNAL("ftello")
 TLI_DEFINE_SIG_INTERNAL(IntPlus, Ptr)
 
 /// off64_t ftello64(FILE *stream)
+#ifdef ftello64
+#undef ftello64
+#endif
 TLI_DEFINE_ENUM_INTERNAL(ftello64)
 TLI_DEFINE_STRING_INTERNAL("ftello64")
 TLI_DEFINE_SIG_INTERNAL(Int64, Ptr)
@@ -1827,6 +1838,9 @@ TLI_DEFINE_STRING_INTERNAL("lstat")
 TLI_DEFINE_SIG_INTERNAL(Int, Ptr, Ptr)
 
 /// int lstat64(const char *path, struct stat64 *buf);
+#ifdef lstat64
+#undef lstat64
+#endif
 TLI_DEFINE_ENUM_INTERNAL(lstat64)
 TLI_DEFINE_STRING_INTERNAL("lstat64")
 TLI_DEFINE_SIG_INTERNAL(Int, Ptr, Ptr)
@@ -2339,6 +2353,9 @@ TLI_DEFINE_STRING_INTERNAL("stat")
 TLI_DEFINE_SIG_INTERNAL(Int, Ptr, Ptr)
 
 /// int stat64(const char *path, struct stat64 *buf);
+#ifdef stat64
+#undef stat64
+#endif
 TLI_DEFINE_ENUM_INTERNAL(stat64)
 TLI_DEFINE_STRING_INTERNAL("stat64")
 TLI_DEFINE_SIG_INTERNAL(Int, Ptr, Ptr)
@@ -2564,6 +2581,9 @@ TLI_DEFINE_STRING_INTERNAL("tmpfile")
 TLI_DEFINE_SIG_INTERNAL(Ptr)
 
 /// FILE *tmpfile64(void)
+#ifdef tmpfile64
+#undef tmpfile64
+#endif
 TLI_DEFINE_ENUM_INTERNAL(tmpfile64)
 TLI_DEFINE_STRING_INTERNAL("tmpfile64")
 TLI_DEFINE_SIG_INTERNAL(Ptr)