When deferring the emission of declarations with initializers in C++, remember
the order they appeared in the translation unit. If they get emitted, put them
in their proper order. Fixes rdar://problem/7458115
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108477 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/global-init.cpp b/test/CodeGenCXX/global-init.cpp
index 8ee087e..8dd3b4e 100644
--- a/test/CodeGenCXX/global-init.cpp
+++ b/test/CodeGenCXX/global-init.cpp
@@ -29,7 +29,29 @@
// 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() {
+// 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
+
+// Later on, 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" {