clang/test/CodeGen/PowerPC/aix-destructor-attribute.c

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