clang/test/CodeGenCXX/attr.cpp

   1 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
   2
   3 // CHECK: @test2 ={{.*}} alias i32 (), ptr @_Z5test1v
   4
   5 // CHECK: define{{.*}} i32 @_Z3foov() [[NUW:#[0-9]+]] align 1024
   6 int foo() __attribute__((aligned(1024)));
   7 int foo() { }
   8
   9 class C {
  10   virtual void bar1() __attribute__((aligned(1)));
  11   virtual void bar2() __attribute__((aligned(2)));
  12   virtual void bar3() __attribute__((aligned(1024)));
  13   void bar4() __attribute__((aligned(1024)));
  14 } c;
  15
  16 // CHECK: define{{.*}} void @_ZN1C4bar1Ev(ptr {{[^,]*}} %this) unnamed_addr [[NUW]] align 2
  17 void C::bar1() { }
  18
  19 // CHECK: define{{.*}} void @_ZN1C4bar2Ev(ptr {{[^,]*}} %this) unnamed_addr [[NUW]] align 2
  20 void C::bar2() { }
  21
  22 // CHECK: define{{.*}} void @_ZN1C4bar3Ev(ptr {{[^,]*}} %this) unnamed_addr [[NUW]] align 1024
  23 void C::bar3() { }
  24
  25 // CHECK: define{{.*}} void @_ZN1C4bar4Ev(ptr {{[^,]*}} %this) [[NUW]] align 1024
  26 void C::bar4() { }
  27
  28 // PR6635
  29 // CHECK-LABEL: define{{.*}} i32 @_Z5test1v()
  30 int test1() { return 10; }
  31 // CHECK at top of file
  32 extern "C" int test2() __attribute__((alias("_Z5test1v")));
  33
  34 // CHECK: attributes [[NUW]] = { {{.*}}noinline nounwind{{.*}} }