clang/test/CodeGenCXX/clang-sections-1.cpp

   1 // RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -o - %s | FileCheck %s --check-prefix=LLVM
   2 // RUN: %clang_cc1 -triple x86_64-linux         -S -o - %s | FileCheck %s --check-prefix=ASM
   3 // Actually, any ELF target would do
   4 // REQUIRES: x86-registered-target
   5
   6 #pragma clang section bss = "B$$" data = "d@t@" rodata = "r0d@t@"
   7
   8 const int a = 1;
   9 const int *f() { return &a; }
  10
  11 int init();
  12 const int b = init();
  13
  14 int c = 2;
  15
  16 int d = init();
  17
  18 int e;
  19
  20 // LLVM: @_ZL1a = internal constant i32 1, align 4 #[[#A:]]
  21 // LLVM: @_ZL1b = internal global i32 0, align 4 #[[#A]]
  22 // LLVM: @c = {{.*}}global i32 2, align 4 #[[#A]]
  23 // LLVM: @d = {{.*}}global i32 0, align 4 #[[#A]]
  24 // LLVM: @e = {{.*}}global i32 0, align 4 #[[#A]]
  25
  26 // LLVM: attributes #[[#A]] = { "bss-section"="B$$" "data-section"="d@t@" "rodata-section"="r0d@t@" }
  27
  28 // ASM:       .section "r0d@t@","a",@progbits
  29 // ASM-NOT:   .section
  30 // ASM-LABEL: _ZL1a:
  31 // ASM-NEXT:  .long 1
  32
  33 // ASM:       .section "B$$","aw",@nobits
  34 // ASM-NOT:   .section
  35 // ASM-LABEL: _ZL1b:
  36 // ASM-NEXT: .long 0
  37
  38 // ASM:       .section "d@t@","aw",@progbits
  39 // ASM-NOT:   .section
  40 // ASM-LABEL: c:
  41 // ASM:       .long 2
  42
  43 // ASM:       .section "B$$","aw",@nobits
  44 // ASM-NOT:   .section
  45 // ASM-LABEL: d:
  46 // ASM:       .long 0
  47
  48 // ASM-NOT:   .section
  49 // ASM-LABEL: e:
  50 // ASM        .long 0