maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/clang/test/CodeGenCXX/const-init-cxx2a.cpp

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

59 lines
1.4 KiB
C++
Raw Normal View History

Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -std=c++2a | FileCheck %s --implicit-check-not=cxx_global_var_init --implicit-check-not=cxa_atexit
For P0784R7: compute whether a variable has constant destruction if it has a constexpr destructor. For constexpr variables, reject if the variable does not have constant destruction. In all cases, do not emit runtime calls to the destructor for variables with constant destruction. llvm-svn: 373159
2019-09-29 13:08:46 +08:00
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-pch -o %t.pch %s -std=c++2a
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// RUN: %clang_cc1 -triple x86_64-linux-gnu -include-pch %t.pch -x c++ /dev/null -emit-llvm -o - -std=c++2a | FileCheck %s --implicit-check-not=cxx_global_var_init --implicit-check-not=cxa_atexit
For P0784R7: Add support for dynamic allocation with new / delete during constant evaluation. llvm-svn: 373036
2019-09-27 09:26:47 +08:00
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK: @a = global i32 123,
For P0784R7: Add support for dynamic allocation with new / delete during constant evaluation. llvm-svn: 373036
2019-09-27 09:26:47 +08:00
int a = (delete new int, 123);
For P0784R7: compute whether a variable has constant destruction if it has a constexpr destructor. For constexpr variables, reject if the variable does not have constant destruction. In all cases, do not emit runtime calls to the destructor for variables with constant destruction. llvm-svn: 373159
2019-09-29 13:08:46 +08:00
struct B {
constexpr B() {}
constexpr ~B() { n *= 5; }
int n = 123;
};
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK: @b = global {{.*}} i32 123
For P0784R7: compute whether a variable has constant destruction if it has a constexpr destructor. For constexpr variables, reject if the variable does not have constant destruction. In all cases, do not emit runtime calls to the destructor for variables with constant destruction. llvm-svn: 373159
2019-09-29 13:08:46 +08:00
extern constexpr B b = B();
// CHECK: @_ZL1c = internal global {{.*}} i32 123
const B c;
int use_c() { return c.n; }
struct D {
int n;
constexpr ~D() {}
};
D d;
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK: @d = global {{.*}} zeroinitializer
For P0784R7: compute whether a variable has constant destruction if it has a constexpr destructor. For constexpr variables, reject if the variable does not have constant destruction. In all cases, do not emit runtime calls to the destructor for variables with constant destruction. llvm-svn: 373159
2019-09-29 13:08:46 +08:00
D d_arr[3];
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK: @d_arr = global {{.*}} zeroinitializer
For P0784R7: compute whether a variable has constant destruction if it has a constexpr destructor. For constexpr variables, reject if the variable does not have constant destruction. In all cases, do not emit runtime calls to the destructor for variables with constant destruction. llvm-svn: 373159
2019-09-29 13:08:46 +08:00
thread_local D d_tl;
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK: @d_tl = thread_local global {{.*}} zeroinitializer
For P0784R7: compute whether a variable has constant destruction if it has a constexpr destructor. For constexpr variables, reject if the variable does not have constant destruction. In all cases, do not emit runtime calls to the destructor for variables with constant destruction. llvm-svn: 373159
2019-09-29 13:08:46 +08:00
// CHECK-NOT: @llvm.global_ctors
// CHECK-LABEL: define {{.*}} @_Z1fv(
void f() {
// CHECK-NOT: call
// CHECK: call {{.*}}memcpy
// CHECK-NOT: call
// CHECK: call {{.*}}memset
// CHECK-NOT: call
// CHECK: }
constexpr B b;
D d = D();
}
// CHECK-LABEL: define {{.*}} @_Z1gv(
void g() {
// CHECK-NOT: call
// CHECK-NOT: cxa_guard
// CHECK-NOT: _ZGV
// CHECK: }
static constexpr B b1;
static const B b2;
static D d;
thread_local D d_tl;
}