diff options
Diffstat (limited to 'test/CodeGenCXX/global-init.cpp')
-rw-r--r-- | test/CodeGenCXX/global-init.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/CodeGenCXX/global-init.cpp b/test/CodeGenCXX/global-init.cpp index 8ee087e..6ff9598 100644 --- a/test/CodeGenCXX/global-init.cpp +++ b/test/CodeGenCXX/global-init.cpp @@ -14,6 +14,9 @@ struct D { ~D(); }; // CHECK: @c = global %struct.C zeroinitializer, align 8 +// It's okay if we ever implement the IR-generation optimization to remove this. +// CHECK: @_ZN5test3L3varE = internal constant i8* getelementptr inbounds ([7 x i8]* + // CHECK: call void @_ZN1AC1Ev(%struct.A* @a) // CHECK: call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.A*)* @_ZN1AD1Ev to void (i8*)*), i8* getelementptr inbounds (%struct.A* @a, i32 0, i32 0), i8* bitcast (i8** @__dso_handle to i8*)) A a; @@ -29,7 +32,52 @@ C c; // CHECK: call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.A*)* @_ZN1DD1Ev to void (i8*)*), i8* getelementptr inbounds (%struct.A* @d, i32 0, i32 0), i8* bitcast (i8** @__dso_handle to i8*)) D d; +// <rdar://problem/7458115> +namespace test1 { + int f(); + const int x = f(); // This has side-effects and gets emitted immediately. + const int y = x - 1; // This gets deferred. + const int z = ~y; // This also gets deferred, but gets "undeferred" before y. + int test() { return z; } +// CHECK: define i32 @_ZN5test14testEv() + + // All of these initializers end up delayed, so we check them later. +} + +// <rdar://problem/8246444> +namespace test2 { + struct allocator { allocator(); ~allocator(); }; + struct A { A(const allocator &a = allocator()); ~A(); }; + + A a; +// CHECK: call void @_ZN5test29allocatorC1Ev( +// CHECK: invoke void @_ZN5test21AC1ERKNS_9allocatorE( +// CHECK: call void @_ZN5test29allocatorD1Ev( +// CHECK: call i32 @__cxa_atexit({{.*}} @_ZN5test21AD1Ev {{.*}} @_ZN5test21aE +} + +namespace test3 { + // Tested at the beginning of the file. + const char * const var = "string"; + extern const char * const var; + + const char *test() { return var; } +} + +// CHECK: define internal void [[TEST1_Z_INIT:@.*]]() +// CHECK: load i32* @_ZN5test1L1yE +// CHECK-NEXT: xor +// CHECK-NEXT: store i32 {{.*}}, i32* @_ZN5test1L1zE +// CHECK: define internal void [[TEST1_Y_INIT:@.*]]() +// CHECK: load i32* @_ZN5test1L1xE +// CHECK-NEXT: sub +// CHECK-NEXT: store i32 {{.*}}, i32* @_ZN5test1L1yE + +// At the end of the file, we check that y is initialized before z. + // CHECK: define internal void @_GLOBAL__I_a() section "__TEXT,__StaticInit,regular,pure_instructions" { +// CHECK: call void [[TEST1_Y_INIT]] +// CHECK: call void [[TEST1_Z_INIT]] // rdar://problem/8090834: this should be nounwind // CHECK-NOEXC: define internal void @_GLOBAL__I_a() nounwind section "__TEXT,__StaticInit,regular,pure_instructions" { |