head	1.1;
branch	1.1.1;
access;
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	clang-195771:1.1.1.1
	LLVM:1.1.1;
locks; strict;
comment	@// @;


1.1
date	2013.11.28.14.14.58;	author joerg;	state Exp;
branches
	1.1.1.1;
next	;
commitid	ow8OybrawrB1f3fx;

1.1.1.1
date	2013.11.28.14.14.58;	author joerg;	state Exp;
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	1.1.1.1.4.1
	1.1.1.1.6.1
	1.1.1.1.8.1;
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1.1.1.2
date	2015.01.29.19.57.35;	author joerg;	state Exp;
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next	1.1.1.3;
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1.1.1.3
date	2016.02.27.22.10.23;	author joerg;	state Exp;
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	1.1.1.3.16.1;
next	1.1.1.4;
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1.1.1.4
date	2019.11.13.22.20.15;	author joerg;	state dead;
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1.1.1.1.4.1
date	2013.11.28.14.14.58;	author yamt;	state dead;
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1.1.1.1.4.2
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1.1.1.1.6.1
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1.1.1.1.8.1
date	2013.11.28.14.14.58;	author tls;	state dead;
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1.1.1.1.8.2
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1.1.1.3.16.1
date	2020.04.13.07.47.29;	author martin;	state dead;
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commitid	X01YhRUPVUDaec4C;


desc
@@


1.1
log
@Initial revision
@
text
@// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s

// CHECK: @@_ZN5test11A1aE = constant i32 10, align 4
// CHECK: @@_ZN5test212_GLOBAL__N_11AIiE1xE = internal global i32 0, align 4
// CHECK: @@_ZN5test31AIiE1xE = weak_odr global i32 0, align 4
// CHECK: @@_ZGVN5test31AIiE1xE = weak_odr global i64 0

// CHECK: _ZN5test51U2k0E = global i32 0
// CHECK: _ZN5test51U2k1E = global i32 0
// CHECK: _ZN5test51U2k2E = constant i32 76
// CHECK-NOT: test51U2k3E
// CHECK-NOT: test51U2k4E

// PR5564.
namespace test1 {
  struct A {
    static const int a = 10;
  };

  const int A::a;

  struct S { 
    static int i;
  };

  void f() { 
    int a = S::i;
  }
}

// Test that we don't use guards for initializing template static data
// members with internal linkage.
namespace test2 {
  int foo();

  namespace {
    template <class T> struct A {
      static int x;
    };

    template <class T> int A<T>::x = foo();
    template struct A<int>;
  }

  // CHECK-LABEL: define internal void @@__cxx_global_var_init()
  // CHECK:      [[TMP:%.*]] = call i32 @@_ZN5test23fooEv()
  // CHECK-NEXT: store i32 [[TMP]], i32* @@_ZN5test212_GLOBAL__N_11AIiE1xE, align 4
  // CHECK-NEXT: ret void
}

// Test that we don't use threadsafe statics when initializing
// template static data members.
namespace test3 {
  int foo();

  template <class T> struct A {
    static int x;
  };

  template <class T> int A<T>::x = foo();
  template struct A<int>;

  // CHECK-LABEL: define internal void @@__cxx_global_var_init1()
  // CHECK:      [[GUARDBYTE:%.*]] = load i8* bitcast (i64* @@_ZGVN5test31AIiE1xE to i8*)
  // CHECK-NEXT: [[UNINITIALIZED:%.*]] = icmp eq i8 [[GUARDBYTE]], 0
  // CHECK-NEXT: br i1 [[UNINITIALIZED]]
  // CHECK:      [[TMP:%.*]] = call i32 @@_ZN5test33fooEv()
  // CHECK-NEXT: store i32 [[TMP]], i32* @@_ZN5test31AIiE1xE, align 4
  // CHECK-NEXT: store i64 1, i64* @@_ZGVN5test31AIiE1xE
  // CHECK-NEXT: br label
  // CHECK:      ret void
}

// Test that we can fold member lookup expressions which resolve to static data
// members.
namespace test4 {
  struct A {
    static const int n = 76;
  };

  int f(A *a) {
    // CHECK-LABEL: define i32 @@_ZN5test41fEPNS_1AE
    // CHECK: ret i32 76
    return a->n;
  }
}

// Test that static data members in unions behave properly.
namespace test5 {
  union U {
    static int k0;
    static const int k1;
    static const int k2 = 76;
    static const int k3;
    static const int k4 = 81;
  };
  int U::k0;
  const int U::k1 = (k0 = 9, 42);
  const int U::k2;

  // CHECK: store i32 9, i32* @@_ZN5test51U2k0E
  // CHECK: store i32 {{.*}}, i32* @@_ZN5test51U2k1E
  // CHECK-NOT: store {{.*}} i32* @@_ZN5test51U2k2E
}
@


1.1.1.1
log
@Import Clang 3.4rc1 r195771.
@
text
@@


1.1.1.1.6.1
log
@Update LLVM to 3.6.1, requested by joerg in ticket 824.
@
text
@d1 1
a1 3
// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | \
// RUN: FileCheck --check-prefix=MACHO %s
d5 2
a6 4
// CHECK: @@_ZN5test31AIiE1xE = weak_odr global i32 0, comdat, align 4
// CHECK: @@_ZGVN5test31AIiE1xE = weak_odr global i64 0, comdat($_ZN5test31AIiE1xE)
// MACHO: @@_ZGVN5test31AIiE1xE = weak_odr global i64 0
// MACHO-NOT: comdat
d63 1
a63 3
  // CHECK-LABEL: define internal void @@__cxx_global_var_init1() {{.*}} comdat($_ZN5test31AIiE1xE)
  // MACHO-LABEL: define internal void @@__cxx_global_var_init1()
  // MACHO-NOT: comdat
@


1.1.1.2
log
@Import Clang 3.6RC1 r227398.
@
text
@d1 1
a1 3
// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | \
// RUN: FileCheck --check-prefix=MACHO %s
d5 2
a6 4
// CHECK: @@_ZN5test31AIiE1xE = weak_odr global i32 0, comdat, align 4
// CHECK: @@_ZGVN5test31AIiE1xE = weak_odr global i64 0, comdat($_ZN5test31AIiE1xE)
// MACHO: @@_ZGVN5test31AIiE1xE = weak_odr global i64 0
// MACHO-NOT: comdat
d63 1
a63 3
  // CHECK-LABEL: define internal void @@__cxx_global_var_init1() {{.*}} comdat($_ZN5test31AIiE1xE)
  // MACHO-LABEL: define internal void @@__cxx_global_var_init1()
  // MACHO-NOT: comdat
@


1.1.1.3
log
@Import Clang 3.8.0rc3 r261930.
@
text
@d67 2
a68 2
  // CHECK-LABEL: define internal void @@__cxx_global_var_init.1() {{.*}} comdat($_ZN5test31AIiE1xE)
  // MACHO-LABEL: define internal void @@__cxx_global_var_init.1()
d70 1
a70 1
  // CHECK:      [[GUARDBYTE:%.*]] = load i8, i8* bitcast (i64* @@_ZGVN5test31AIiE1xE to i8*)
@


1.1.1.3.16.1
log
@Mostly merge changes from HEAD upto 20200411
@
text
@@


1.1.1.4
log
@Mark old LLVM instance as dead.
@
text
@@


1.1.1.1.8.1
log
@file static-data-member.cpp was added on branch tls-maxphys on 2014-08-19 23:47:58 +0000
@
text
@d1 104
@


1.1.1.1.8.2
log
@Rebase to HEAD as of a few days ago.
@
text
@a0 104
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s

// CHECK: @@_ZN5test11A1aE = constant i32 10, align 4
// CHECK: @@_ZN5test212_GLOBAL__N_11AIiE1xE = internal global i32 0, align 4
// CHECK: @@_ZN5test31AIiE1xE = weak_odr global i32 0, align 4
// CHECK: @@_ZGVN5test31AIiE1xE = weak_odr global i64 0

// CHECK: _ZN5test51U2k0E = global i32 0
// CHECK: _ZN5test51U2k1E = global i32 0
// CHECK: _ZN5test51U2k2E = constant i32 76
// CHECK-NOT: test51U2k3E
// CHECK-NOT: test51U2k4E

// PR5564.
namespace test1 {
  struct A {
    static const int a = 10;
  };

  const int A::a;

  struct S { 
    static int i;
  };

  void f() { 
    int a = S::i;
  }
}

// Test that we don't use guards for initializing template static data
// members with internal linkage.
namespace test2 {
  int foo();

  namespace {
    template <class T> struct A {
      static int x;
    };

    template <class T> int A<T>::x = foo();
    template struct A<int>;
  }

  // CHECK-LABEL: define internal void @@__cxx_global_var_init()
  // CHECK:      [[TMP:%.*]] = call i32 @@_ZN5test23fooEv()
  // CHECK-NEXT: store i32 [[TMP]], i32* @@_ZN5test212_GLOBAL__N_11AIiE1xE, align 4
  // CHECK-NEXT: ret void
}

// Test that we don't use threadsafe statics when initializing
// template static data members.
namespace test3 {
  int foo();

  template <class T> struct A {
    static int x;
  };

  template <class T> int A<T>::x = foo();
  template struct A<int>;

  // CHECK-LABEL: define internal void @@__cxx_global_var_init1()
  // CHECK:      [[GUARDBYTE:%.*]] = load i8* bitcast (i64* @@_ZGVN5test31AIiE1xE to i8*)
  // CHECK-NEXT: [[UNINITIALIZED:%.*]] = icmp eq i8 [[GUARDBYTE]], 0
  // CHECK-NEXT: br i1 [[UNINITIALIZED]]
  // CHECK:      [[TMP:%.*]] = call i32 @@_ZN5test33fooEv()
  // CHECK-NEXT: store i32 [[TMP]], i32* @@_ZN5test31AIiE1xE, align 4
  // CHECK-NEXT: store i64 1, i64* @@_ZGVN5test31AIiE1xE
  // CHECK-NEXT: br label
  // CHECK:      ret void
}

// Test that we can fold member lookup expressions which resolve to static data
// members.
namespace test4 {
  struct A {
    static const int n = 76;
  };

  int f(A *a) {
    // CHECK-LABEL: define i32 @@_ZN5test41fEPNS_1AE
    // CHECK: ret i32 76
    return a->n;
  }
}

// Test that static data members in unions behave properly.
namespace test5 {
  union U {
    static int k0;
    static const int k1;
    static const int k2 = 76;
    static const int k3;
    static const int k4 = 81;
  };
  int U::k0;
  const int U::k1 = (k0 = 9, 42);
  const int U::k2;

  // CHECK: store i32 9, i32* @@_ZN5test51U2k0E
  // CHECK: store i32 {{.*}}, i32* @@_ZN5test51U2k1E
  // CHECK-NOT: store {{.*}} i32* @@_ZN5test51U2k2E
}
@


1.1.1.1.4.1
log
@file static-data-member.cpp was added on branch yamt-pagecache on 2014-05-22 16:18:57 +0000
@
text
@d1 104
@


1.1.1.1.4.2
log
@sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")
@
text
@a0 104
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s

// CHECK: @@_ZN5test11A1aE = constant i32 10, align 4
// CHECK: @@_ZN5test212_GLOBAL__N_11AIiE1xE = internal global i32 0, align 4
// CHECK: @@_ZN5test31AIiE1xE = weak_odr global i32 0, align 4
// CHECK: @@_ZGVN5test31AIiE1xE = weak_odr global i64 0

// CHECK: _ZN5test51U2k0E = global i32 0
// CHECK: _ZN5test51U2k1E = global i32 0
// CHECK: _ZN5test51U2k2E = constant i32 76
// CHECK-NOT: test51U2k3E
// CHECK-NOT: test51U2k4E

// PR5564.
namespace test1 {
  struct A {
    static const int a = 10;
  };

  const int A::a;

  struct S { 
    static int i;
  };

  void f() { 
    int a = S::i;
  }
}

// Test that we don't use guards for initializing template static data
// members with internal linkage.
namespace test2 {
  int foo();

  namespace {
    template <class T> struct A {
      static int x;
    };

    template <class T> int A<T>::x = foo();
    template struct A<int>;
  }

  // CHECK-LABEL: define internal void @@__cxx_global_var_init()
  // CHECK:      [[TMP:%.*]] = call i32 @@_ZN5test23fooEv()
  // CHECK-NEXT: store i32 [[TMP]], i32* @@_ZN5test212_GLOBAL__N_11AIiE1xE, align 4
  // CHECK-NEXT: ret void
}

// Test that we don't use threadsafe statics when initializing
// template static data members.
namespace test3 {
  int foo();

  template <class T> struct A {
    static int x;
  };

  template <class T> int A<T>::x = foo();
  template struct A<int>;

  // CHECK-LABEL: define internal void @@__cxx_global_var_init1()
  // CHECK:      [[GUARDBYTE:%.*]] = load i8* bitcast (i64* @@_ZGVN5test31AIiE1xE to i8*)
  // CHECK-NEXT: [[UNINITIALIZED:%.*]] = icmp eq i8 [[GUARDBYTE]], 0
  // CHECK-NEXT: br i1 [[UNINITIALIZED]]
  // CHECK:      [[TMP:%.*]] = call i32 @@_ZN5test33fooEv()
  // CHECK-NEXT: store i32 [[TMP]], i32* @@_ZN5test31AIiE1xE, align 4
  // CHECK-NEXT: store i64 1, i64* @@_ZGVN5test31AIiE1xE
  // CHECK-NEXT: br label
  // CHECK:      ret void
}

// Test that we can fold member lookup expressions which resolve to static data
// members.
namespace test4 {
  struct A {
    static const int n = 76;
  };

  int f(A *a) {
    // CHECK-LABEL: define i32 @@_ZN5test41fEPNS_1AE
    // CHECK: ret i32 76
    return a->n;
  }
}

// Test that static data members in unions behave properly.
namespace test5 {
  union U {
    static int k0;
    static const int k1;
    static const int k2 = 76;
    static const int k3;
    static const int k4 = 81;
  };
  int U::k0;
  const int U::k1 = (k0 = 9, 42);
  const int U::k2;

  // CHECK: store i32 9, i32* @@_ZN5test51U2k0E
  // CHECK: store i32 {{.*}}, i32* @@_ZN5test51U2k1E
  // CHECK-NOT: store {{.*}} i32* @@_ZN5test51U2k2E
}
@


