test/CodeGen/alias.c

   1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o %t %s
   2 // RUN: grep '@g0 = common global i32 0' %t
   3 // RUN: grep '@f1 = alias void ()\* @f0' %t
   4 // RUN: grep '@g1 = alias i32\* @g0' %t
   5 // RUN: grep 'define void @f0() nounwind {' %t
   6
   7 void f0(void) { }
   8 extern void f1(void);
   9 extern void f1(void) __attribute((alias("f0")));
  10
  11 int g0;
  12 extern int g1;
  13 extern int g1 __attribute((alias("g0")));
  14
  15 // Make sure that aliases cause referenced values to be emitted.
  16 // PR3200
  17 // RUN: grep 'define internal i32 @foo1()' %t
  18 static inline int foo1() { return 0; }
  19 int foo() __attribute__((alias("foo1")));
  20
  21
  22 // RUN: grep '@bar1 = internal global i32 42' %t
  23 static int bar1 = 42;
  24 int bar() __attribute__((alias("bar1")));
  25
  26
  27 extern int test6();
  28 void test7() { test6(); }  // test6 is emitted as extern.
  29
  30 // test6 changes to alias.
  31 int test6() __attribute__((alias("test7")));
  32