test/CodeGen/mangle.c

   1 // RUN: clang-cc -triple i386-pc-linux-gnu -emit-llvm -o %t %s &&
   2 // RUN: grep '@_Z2f0i' %t &&
   3 // RUN: grep '@_Z2f0l' %t &&
   4
   5 // Make sure we mangle overloadable, even in C system headers.
   6
   7 # 1 "somesystemheader.h" 1 3 4
   8 void __attribute__((__overloadable__)) f0(int a) {}
   9 void __attribute__((__overloadable__)) f0(long b) {}
  10
  11
  12
  13 // These should get merged.
  14 void foo() __asm__("bar");
  15 void foo2() __asm__("bar");
  16
  17 // RUN: grep '@"\\01foo"' %t &&
  18 // RUN: grep '@"\\01bar"' %t
  19
  20 int nux __asm__("foo");
  21 extern float nux2 __asm__("foo");
  22
  23 int test() {
  24   foo();
  25   foo2();
  26
  27   return nux + nux2;
  28 }
  29
  30
  31 // Function becomes a variable.
  32 void foo3() __asm__("var");
  33
  34 void test2() {
  35   foo3();
  36 }
  37 int foo4 __asm__("var") = 4;
  38
  39
  40 // Variable becomes a function
  41 extern int foo5 __asm__("var2");
  42
  43 void test3() {
  44   foo5 = 1;
  45 }
  46
  47 void foo6() __asm__("var2");
  48 void foo6() {
  49 }
  50
  51
  52
  53 int foo7 __asm__("foo7") __attribute__((used));
  54 float foo8 __asm__("foo7") = 42;