src/test/assembly/static-relocation-model.rs

   1 // revisions: x64 A64 ppc64le
   2 // assembly-output: emit-asm
   3 // [x64] compile-flags: --target x86_64-unknown-linux-gnu -Crelocation-model=static
   4 // [x64] needs-llvm-components: x86
   5 // [A64] compile-flags: --target aarch64-unknown-linux-gnu -Crelocation-model=static
   6 // [A64] needs-llvm-components: aarch64
   7 // [ppc64le] compile-flags: --target powerpc64le-unknown-linux-gnu -Crelocation-model=static
   8 // [ppc64le] needs-llvm-components: powerpc
   9
  10 #![feature(no_core, lang_items)]
  11 #![no_core]
  12 #![crate_type="rlib"]
  13
  14 #[lang="sized"]
  15 trait Sized {}
  16
  17 #[lang="copy"]
  18 trait Copy {}
  19
  20 #[lang="sync"]
  21 trait Sync {}
  22
  23 #[lang = "drop_in_place"]
  24 fn drop_in_place<T>(_: *mut T) {}
  25
  26 impl Copy for u8 {}
  27 impl Sync for u8 {}
  28
  29 #[no_mangle]
  30 pub static PIERIS: u8 = 42;
  31
  32 extern "C" {
  33     static EXOCHORDA: *mut u8;
  34
  35     fn chaenomeles();
  36 }
  37
  38 // CHECK-LABEL: banana:
  39 // x64: movb   chaenomeles{{(\(%[a-z0-9]+\))?}}, %{{[a-z0-9]+}}
  40 // A64:      adrp    [[REG:[a-z0-9]+]], chaenomeles
  41 // A64-NEXT: ldrb    {{[a-z0-9]+}}, {{\[}}[[REG]], :lo12:chaenomeles]
  42 #[no_mangle]
  43 pub fn banana() -> u8 {
  44     unsafe {
  45         *(chaenomeles as *mut u8)
  46     }
  47 }
  48
  49 // CHECK-LABEL: peach:
  50 // x64: movb    banana{{(\(%[a-z0-9]+\))?}}, %{{[a-z0-9]+}}
  51 // A64:      adrp    [[REG2:[a-z0-9]+]], banana
  52 // A64-NEXT: ldrb    {{[a-z0-9]+}}, {{\[}}[[REG2]], :lo12:banana]
  53 #[no_mangle]
  54 pub fn peach() -> u8 {
  55     unsafe {
  56         *(banana as *mut u8)
  57     }
  58 }
  59
  60 // CHECK-LABEL: mango:
  61 // x64:      movq    EXOCHORDA{{(\(%[a-z0-9]+\))?}}, %[[REG:[a-z0-9]+]]
  62 // x64-NEXT: movb    (%[[REG]]), %{{[a-z0-9]+}}
  63 // A64:      adrp    [[REG2:[a-z0-9]+]], EXOCHORDA
  64 // A64-NEXT: ldr     {{[a-z0-9]+}}, {{\[}}[[REG2]], :lo12:EXOCHORDA]
  65 #[no_mangle]
  66 pub fn mango() -> u8 {
  67     unsafe {
  68         *EXOCHORDA
  69     }
  70 }
  71
  72 // CHECK-LABEL: orange:
  73 // x64: mov{{l|absq}}    $PIERIS, %{{[a-z0-9]+}}
  74 // A64:      adrp    [[REG2:[a-z0-9]+]], PIERIS
  75 // A64-NEXT: add     {{[a-z0-9]+}}, [[REG2]], :lo12:PIERIS
  76 #[no_mangle]
  77 pub fn orange() -> &'static u8 {
  78     &PIERIS
  79 }
  80
  81 // For ppc64 we need to make sure to generate TOC entries even with the static relocation model
  82 // ppc64le: .tc chaenomeles[TC],chaenomeles
  83 // ppc64le: .tc banana[TC],banana
  84 // ppc64le: .tc EXOCHORDA[TC],EXOCHORDA
  85 // ppc64le: .tc PIERIS[TC],PIERIS