src/test/codegen/issue-44056-macos-tls-align.rs

   1 //
   2 // only-macos
   3 // no-system-llvm
   4 // compile-flags: -O
   5
   6 #![crate_type = "rlib"]
   7 #![feature(thread_local)]
   8
   9 // local_unnamed_addr does not appear when std is built with debug assertions.
  10 // CHECK: @STATIC_VAR_1 = thread_local {{(local_unnamed_addr )?}}global <{ [32 x i8] }> zeroinitializer, section "__DATA,__thread_bss", align 4
  11 #[no_mangle]
  12 #[thread_local]
  13 static mut STATIC_VAR_1: [u32; 8] = [0; 8];
  14
  15 // CHECK: @STATIC_VAR_2 = thread_local {{(local_unnamed_addr )?}}global <{ [32 x i8] }> <{{[^>]*}}>, section "__DATA,__thread_data", align 4
  16 #[no_mangle]
  17 #[thread_local]
  18 static mut STATIC_VAR_2: [u32; 8] = [4; 8];
  19
  20 #[no_mangle]
  21 pub unsafe fn f(x: &mut [u32; 8]) {
  22     std::mem::swap(x, &mut STATIC_VAR_1)
  23 }
  24
  25 #[no_mangle]
  26 pub unsafe fn g(x: &mut [u32; 8]) {
  27     std::mem::swap(x, &mut STATIC_VAR_2)
  28 }