clang/test/CodeGenCXX/aix-destructor-attribute.cpp

   1 // RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -x c++ -emit-llvm \
   2 // RUN:     -fno-use-cxa-atexit < %s | \
   3 // RUN:   FileCheck --check-prefix=NO-REGISTER %s
   4 // RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -x c++ -emit-llvm \
   5 // RUN:     -fno-use-cxa-atexit < %s | \
   6 // RUN:   FileCheck --check-prefix=NO-REGISTER %s
   7
   8 // RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -x c++ -emit-llvm \
   9 // RUN:     -fno-use-cxa-atexit -fregister-global-dtors-with-atexit < %s | \
  10 // RUN:   FileCheck --check-prefix=REGISTER %s
  11 // RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -x c++ -emit-llvm \
  12 // RUN:     -fno-use-cxa-atexit -fregister-global-dtors-with-atexit < %s | \
  13 // RUN:   FileCheck --check-prefix=REGISTER %s
  14
  15 struct test {
  16   test();
  17   ~test();
  18 } t;
  19
  20 int bar() __attribute__((destructor(100)));
  21 int bar2() __attribute__((destructor(65535)));
  22 int bar3(int) __attribute__((destructor(65535)));
  23
  24 int bar() {
  25   return 1;
  26 }
  27
  28 int bar2() {
  29   return 2;
  30 }
  31
  32 int bar3(int a) {
  33   return a;
  34 }
  35
  36 // NO-REGISTER: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__sub_I__, ptr null }]
  37 // NO-REGISTER: @llvm.global_dtors = appending global [4 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 100, ptr @_Z3barv, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @_Z4bar2v, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @_Z4bar3i, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__D_a, ptr null }]
  38
  39 // REGISTER: @llvm.global_ctors = appending global [3 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__sub_I__, ptr null }, { i32, ptr, ptr } { i32 100, ptr @__GLOBAL_init_100, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @__GLOBAL_init_65535, ptr null }]
  40 // REGISTER: @llvm.global_dtors = appending global [3 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__D_a, ptr null }, { i32, ptr, ptr } { i32 100, ptr @__GLOBAL_cleanup_100, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @__GLOBAL_cleanup_65535, ptr null }]
  41
  42 // REGISTER: define internal void @__GLOBAL_init_100() [[ATTR:#[0-9]+]] {
  43 // REGISTER: entry:
  44 // REGISTER:   %0 = call i32 @atexit(ptr @_Z3barv)
  45 // REGISTER:   ret void
  46 // REGISTER: }
  47
  48 // REGISTER: define internal void @__GLOBAL_init_65535() [[ATTR:#[0-9]+]] {
  49 // REGISTER: entry:
  50 // REGISTER:   %0 = call i32 @atexit(ptr @_Z4bar2v)
  51 // REGISTER:   %1 = call i32 @atexit(ptr @_Z4bar3i)
  52 // REGISTER:   ret void
  53 // REGISTER: }
  54
  55 // REGISTER: define internal void @__GLOBAL_cleanup_100() [[ATTR:#[0-9]+]] {
  56 // REGISTER: entry:
  57 // REGISTER:   %0 = call i32 @unatexit(ptr @_Z3barv)
  58 // REGISTER:   %needs_destruct = icmp eq i32 %0, 0
  59 // REGISTER:   br i1 %needs_destruct, label %destruct.call, label %destruct.end
  60
  61 // REGISTER: destruct.call:
  62 // REGISTER:   call void @_Z3barv()
  63 // REGISTER:   br label %destruct.end
  64
  65 // REGISTER: destruct.end:
  66 // REGISTER:   ret void
  67 // REGISTER: }
  68
  69 // REGISTER: define internal void @__GLOBAL_cleanup_65535() [[ATTR:#[0-9]+]] {
  70 // REGISTER: entry:
  71 // REGISTER:   %0 = call i32 @unatexit(ptr @_Z4bar3i)
  72 // REGISTER:   %needs_destruct = icmp eq i32 %0, 0
  73 // REGISTER:   br i1 %needs_destruct, label %destruct.call, label %unatexit.call
  74
  75 // REGISTER: destruct.call:
  76 // REGISTER:   call void @_Z4bar3i()
  77 // REGISTER:   br label %unatexit.call
  78
  79 // REGISTER: unatexit.call:
  80 // REGISTER:   %1 = call i32 @unatexit(ptr @_Z4bar2v)
  81 // REGISTER:   %needs_destruct1 = icmp eq i32 %1, 0
  82 // REGISTER:   br i1 %needs_destruct1, label %destruct.call2, label %destruct.end
  83
  84 // REGISTER: destruct.call2:
  85 // REGISTER:   call void @_Z4bar2v()
  86 // REGISTER:   br label %destruct.end
  87
  88 // REGISTER: destruct.end:
  89 // REGISTER:   ret void
  90 // REGISTER: }