clang/test/CodeGen/memcpy-inline-builtin-no-extern.c

   1 // RUN: %clang_cc1 -triple x86_64 -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s
   2 //
   3 // Verifies that clang-generated *.inline are flagged as internal.
   4
   5 typedef unsigned long size_t;
   6
   7 #define AVAILABLE_EXTERNALLY extern inline __attribute__((always_inline)) __attribute__((gnu_inline))
   8 // Clang recognizes an inline builtin and renames it to memcmp.inline to prevent conflict with builtins.
   9 AVAILABLE_EXTERNALLY int memcmp(const void *a, const void *b, size_t c) {
  10   return __builtin_memcmp(a, b, c);
  11 }
  12
  13 // CHECK: internal{{.*}}memcmp.inline
  14 int bar(const void *a, const void *b, size_t c) {
  15   return memcmp(a, b, c);
  16 }
  17
  18 // Note that extern has been omitted here.
  19 #define TRIPLE_INLINE inline __attribute__((always_inline)) __attribute__((gnu_inline))
  20
  21 // Clang recognizes an inline builtin and renames it to memcpy.inline to prevent conflict with builtins.
  22 TRIPLE_INLINE void *memcpy(void *a, const void *b, size_t c) {
  23   return __builtin_memcpy(a, b, c);
  24 }
  25
  26 // CHECK: internal{{.*}}memcpy.inline
  27 void *foo(void *a, const void *b, size_t c) {
  28   return memcpy(a, b, c);
  29 }