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-rw-r--r--test/CodeGenCXX/global-init.cpp48
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" {
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