clang/test/CodeGen/thread-specifier.c

   1 // RUN: %clang_cc1 -triple i686-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
   2 // RUN: %clang_cc1 -triple riscv32 -emit-llvm -o - %s | FileCheck %s
   3 // RUN: %clang_cc1 -triple riscv64 -emit-llvm -o - %s | FileCheck %s
   4
   5 // CHECK: @b = external thread_local global
   6 // CHECK: @d.e = internal thread_local global
   7 // CHECK: @d.f = internal thread_local global
   8 // CHECK: @f.a = internal thread_local(initialexec) global
   9 // CHECK: @a ={{.*}} thread_local global
  10 // CHECK: @g ={{.*}} thread_local global
  11 // CHECK: @h ={{.*}} thread_local(localdynamic) global
  12 // CHECK: @i ={{.*}} thread_local(initialexec) global
  13 // CHECK: @j ={{.*}} thread_local(localexec) global
  14
  15 // CHECK-NOT: @_ZTW
  16 // CHECK-NOT: @_ZTH
  17
  18 __thread int a;
  19 extern __thread int b;
  20 int c(void) { return *&b; }
  21 int d(void) {
  22   __thread static int e;
  23   __thread static union {float a; int b;} f = {.b = 1};
  24   return 0;
  25 }
  26
  27 __thread int g __attribute__((tls_model("global-dynamic")));
  28 __thread int h __attribute__((tls_model("local-dynamic")));
  29 __thread int i __attribute__((tls_model("initial-exec")));
  30 __thread int j __attribute__((tls_model("local-exec")));
  31
  32 int f(void) {
  33   __thread static int a __attribute__((tls_model("initial-exec")));
  34   return a++;
  35 }