clang/test/CodeGen/keep-persistent-storage-variables.cpp

   1 // RUN: %clang_cc1 -fkeep-persistent-storage-variables -emit-llvm %s -o - -triple=x86_64-unknown-linux-gnu | FileCheck %s
   2 // RUN: %clang_cc1 -fkeep-persistent-storage-variables -emit-llvm %s -o - -triple=powerpc64-ibm-aix-xcoff | FileCheck %s
   3
   4 // CHECK: @_ZL2g1 = internal global i32 0, align 4
   5 // CHECK: @_ZL2g2 = internal global i32 1, align 4
   6 // CHECK: @tl1 = thread_local global i32 0, align 4
   7 // CHECK: @tl2 = thread_local global i32 3, align 4
   8 // CHECK: @_ZL3tl3 = internal thread_local global i32 0, align 4
   9 // CHECK: @_ZL3tl4 = internal thread_local global i32 4, align 4
  10 // CHECK: @g5 = global i32 0, align 4
  11 // CHECK: @g6 = global i32 6, align 4
  12 // CHECK: @_ZZ5test3vE2s3 = internal global i32 0, align 4
  13 // CHECK: @_ZN12_GLOBAL__N_12s4E = internal global i32 42, align 4
  14 // CHECK: @_ZZ5test5vE3tl5 = internal thread_local global i32 1, align 4
  15 // CHECK: @_ZN2ST2s6E = global i32 7, align 4
  16 // CHECK: @_Z2v7 = internal global %union.anon zeroinitializer, align 4
  17 // CHECK: @_ZDC2v8E = global %struct.ST8 zeroinitializer, align 4
  18 // CHECK: @llvm{{(\.compiler)?}}.used = appending global [14 x ptr] [ptr @_ZL2g1, ptr @_ZL2g2, ptr @tl1, ptr @tl2, ptr @_ZL3tl3, ptr @_ZL3tl4, ptr @g5, ptr @g6, ptr @_ZZ5test3vE2s3, ptr @_ZN12_GLOBAL__N_12s4E, ptr @_ZZ5test5vE3tl5, ptr @_ZN2ST2s6E, ptr @_Z2v7, ptr @_ZDC2v8E], section "llvm.metadata"
  19
  20 static int g1;
  21 static int g2 = 1;
  22 __thread int tl1;
  23 __thread int tl2 = 3;
  24 static __thread int tl3;
  25 static __thread int tl4 = 4;
  26 int g5;
  27 int g6 = 6;
  28
  29 int test3() {
  30   static int s3 = 0;
  31   ++s3;
  32   return s3;
  33 }
  34
  35 namespace {
  36   int s4 = 42;
  37 }
  38
  39 int test5() {
  40   static __thread int tl5 = 1;
  41   ++tl5;
  42   return tl5;
  43 }
  44
  45 struct ST {
  46   static int s6;
  47 };
  48 int ST::s6 = 7;
  49
  50 static union { int v7; };
  51
  52 struct ST8 { int v8; };
  53 auto [v8] = ST8{0};