test/CodeGen/mangle.c

   1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
   2
   3 // CHECK: @"\01foo"
   4
   5 // Make sure we mangle overloadable, even in C system headers.
   6 # 1 "somesystemheader.h" 1 3 4
   7 // CHECK: @_Z2f0i
   8 void __attribute__((__overloadable__)) f0(int a) {}
   9 // CHECK: @_Z2f0l
  10 void __attribute__((__overloadable__)) f0(long b) {}
  11
  12 // CHECK: @"\01bar"
  13
  14 // These should get merged.
  15 void foo() __asm__("bar");
  16 void foo2() __asm__("bar");
  17
  18 int nux __asm__("foo");
  19 extern float nux2 __asm__("foo");
  20
  21 int test() {
  22   foo();
  23   foo2();
  24
  25   return nux + nux2;
  26 }
  27
  28
  29 // Function becomes a variable.
  30 void foo3() __asm__("var");
  31
  32 void test2() {
  33   foo3();
  34 }
  35 int foo4 __asm__("var") = 4;
  36
  37
  38 // Variable becomes a function
  39 extern int foo5 __asm__("var2");
  40
  41 void test3() {
  42   foo5 = 1;
  43 }
  44
  45 void foo6() __asm__("var2");
  46 void foo6() {
  47 }
  48
  49
  50
  51 int foo7 __asm__("foo7") __attribute__((used));
  52 float foo8 __asm__("foo7") = 42;
  53
  54 // PR4412
  55 int func(void);
  56 extern int func (void) __asm__ ("FUNC");
  57
  58 // CHECK: @"\01FUNC"
  59 int func(void) {
  60   return 42;
  61 }
  62
  63 // CHECK: @_Z4foo9Dv4_f
  64 typedef __attribute__(( vector_size(16) )) float float4;
  65 void __attribute__((__overloadable__)) foo9(float4 f) {}