clang/test/CodeGen/clang-sections-attribute.c

   1 // RUN: %clang_cc1 -emit-llvm -triple arm-none-eabi -o - %s | FileCheck %s
   2
   3 // Test interaction between __attribute__((section())) and '#pragma clang
   4 // section' directives. The attribute should always have higher priority than
   5 // the pragma.
   6
   7 // Text tests.
   8 #pragma clang section text=".ext_fun_pragma"
   9 void ext_fun(void) __attribute__((section(".ext_fun_attr")));
  10 void ext_fun(void) {}
  11 #pragma clang section text=""
  12
  13 void ext_fun2(void) __attribute__((section(".ext_fun2_attr")));
  14 #pragma clang section text=".ext_fun2_pragma"
  15 void ext_fun2(void) {}
  16 #pragma clang section text=""
  17
  18 #pragma clang section text=".int_fun_pragma"
  19 static void int_fun(void) __attribute__((section(".int_fun_attr"), used));
  20 static void int_fun(void) {}
  21 #pragma clang section text=""
  22
  23 static void int_fun2(void) __attribute__((section(".int_fun2_attr"), used));
  24 #pragma clang section text=".int_fun2_pragma"
  25 static void int_fun2(void) {}
  26 #pragma clang section text=""
  27
  28 // Rodata tests.
  29 #pragma clang section rodata=".ext_const_pragma"
  30 __attribute__((section(".ext_const_attr")))
  31 const int ext_const = 1;
  32 #pragma clang section rodata=""
  33
  34 #pragma clang section rodata=".int_const_pragma"
  35 __attribute__((section(".int_const_attr"), used))
  36 static const int int_const = 1;
  37 #pragma clang section rodata=""
  38
  39 // Data tests.
  40 #pragma clang section data=".ext_var_pragma"
  41 __attribute__((section(".ext_var_attr")))
  42 int ext_var = 1;
  43 #pragma clang section data=""
  44
  45 #pragma clang section data=".int_var_pragma"
  46 __attribute__((section(".int_var_attr"), used))
  47 static int int_var = 1;
  48 #pragma clang section data=""
  49
  50 // Bss tests.
  51 #pragma clang section bss=".ext_zvar_pragma"
  52 __attribute__((section(".ext_zvar_attr")))
  53 int ext_zvar;
  54 #pragma clang section bss=""
  55
  56 #pragma clang section bss=".int_zvar_pragma"
  57 __attribute__((section(".int_zvar_attr"), used))
  58 static int int_zvar;
  59 #pragma clang section bss=""
  60
  61 // CHECK: @ext_const ={{.*}} constant i32 1, section ".ext_const_attr", align 4{{$}}
  62 // CHECK: @int_const = internal constant i32 1, section ".int_const_attr", align 4{{$}}
  63 // CHECK: @ext_var ={{.*}} global i32 1, section ".ext_var_attr", align 4{{$}}
  64 // CHECK: @int_var = internal global i32 1, section ".int_var_attr", align 4{{$}}
  65 // CHECK: @ext_zvar ={{.*}} global i32 0, section ".ext_zvar_attr", align 4{{$}}
  66 // CHECK: @int_zvar = internal global i32 0, section ".int_zvar_attr", align 4{{$}}
  67 // CHECK: define{{.*}} void @ext_fun() #0 section ".ext_fun_attr"
  68 // CHECK: define{{.*}} void @ext_fun2() #0 section ".ext_fun2_attr"
  69 // CHECK: define internal void @int_fun() #0 section ".int_fun_attr"
  70 // CHECK: define internal void @int_fun2() #0 section ".int_fun2_attr"
  71 //
  72 // No other attribute group should be present in the file.
  73 // CHECK-NOT: attributes #1